Leaves are narrow and falcate in shape, with tapering leaves resembling grass.
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The wingspan is about . Forewings are yellowish and apically falcate, with dark gray stripes.
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It is a favorite nectar source for small butterflies such as the falcate orangetip.
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Colletotrichum axonopodi is a falcate-spored graminicolous plant pathogenic fungi species, first isolated from warm-season grasses.
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Colletotrichum hanaui is a falcate-spored graminicolous plant pathogenic fungi species, first isolated from warm-season grasses.
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Colletotrichum nicholsonii is a falcate-spored graminicolous plant pathogenic fungi species, first isolated from warm-season grasses.
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Colletotrichum paspali is a falcate-spored graminicolous plant pathogenic fungi species, first isolated from warm-season grasses.
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Colletotrichum jacksonii is a falcate-spored graminicolous plant pathogenic fungi species, first isolated from warm-season grasses.
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Colletotrichum miscanthi is a falcate-spored graminicolous plant pathogenic fungi species, first isolated from warm-season grasses.
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The forewing apex is falcate, the outer edge is smooth and straight and the tornus is almost rectangular.
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The forewing apex is falcate and the outer edge is smooth and straight. The tornus is almost rectangular.
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There is a black discal spot on the forewing, which has a smooth outer margin and is not falcate apically.
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The long and narrow pectoral fins are falcate (sickle-shaped) with pointed tips. The large first dorsal fin is also falcate and originates over or slightly behind the rear of the pectoral fin bases. The second dorsal fin is moderately tall and positioned about opposite the anal fin. There is no midline ridge between the dorsal fins.
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The outer skeleton; all shells are exoskeletons. Exserted. Brought out. Expanded. Spread out, as the lip of some shells. Falcate. Scythe- shaped. Fasciculus.
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The lateral lobes of the lip are falcate and very acute. The very narrow medial lobe of the lip is cuneate and trilobed at its apex.
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The female is larger than the male. Its forewings have a slightly falcate (sickle shaped) apex. Its reniform spot is conspicuous and dark green. Stigmata orbicular.
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They are less falcate than Iris acutiloba, but more falcate than Iris meda. They can grow up to between long, and between 0.2 and 0.7 cm wide. It has a slender straight stem, although the base of the stem can be thickened, it can grow up to between tall, it is generally about 10 cm tall. The stem has a green, lanceolate (narrow and pointed), spathe (leaf of the flower bud).
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Palpi thickly scaled and reaching beyond the frons. Antennae bipectinated to two- thirds in male. Hind tibia not dilated. Forewings with arched costa towards apex, which is somewhat falcate.
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Forewings pinkish-grey brown. Costa sinous and apex falcate. The caterpillar has a chocolate coloured body with short black hairlets and whitish primary setae. Anal segment is brownish orange.
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A pair of Antarctic minke whales showing their prominent, falcate dorsal fins Yushin Maru, showing the coloration of the baleen. Like their close relative the common minke, the Antarctic minke whale is robust for its genus. They have a narrow, pointed, triangular rostrum with a low splashguard. Their prominent, upright, falcate dorsal fin – often more curved and pointed than in common minkes –is set about two-thirds the way along the back.
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Mahathala ariadeva, the Malayan Falcate Oakblue, is a butterfly in the family Lycaenidae. It was described by Hans Fruhstorfer in 1908. It is found in the Indomalayan realm.Seitz, A., 1912-1927.
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Emesis tenedia, the falcate metalmark, is a species of metalmark in the butterfly family Riodinidae. It is found in North America. The MONA or Hodges number for Emesis tenedia is 4401.1.
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They are pedunculate (i.e. supported on a stalk), with the peduncles measuring 0.6 to 2.3 cm. They are generally not falcate (i.e. sickle-shaped), though they may be slightly so (cf.
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The first dorsal fin is moderately tall and falcate (sickle-like) in shape, with a rounded tip. The pectoral and pelvic fins are not falcate, rather having nearly straight rear margins. The anal fin is larger than the second dorsal fin, with long free rear tip and a strong notch in the rear margin. The dermal denticles are densely packed, each with 5-7 horizontal ridges (3 in juveniles) leading to a W-shaped rear margin.
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Palpi short, porrect (extending forward) and roughly scaled. Antennae of male ciliated. Hind tibia dilated, with a fold and tuft of long hair on inner side. Forewings highly falcate (sickle shaped) at apex.
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Palpi usually reaching vertex of head, where the third joint minute. Thorax and abdomen smoothly scaled. Forewings with slightly produced and falcate apex. Hindwings with vein 5 from above lower angle of cell.
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It is more evolute than Polyplectus. Difference between Cleviceras and early species of Harpoceras is, that Cleviceras does not have spiral groove, nor series of undulations at the falcate bend of the ribbing (but these are not appearing even in the case of all Harpoceras species). Ribs of Cleviceras are always falcoid, while in the case of some Harpoceras species, they are falcate. But, on some specimens of C. exaratum, there can appear grooved furrow, as in the case of type specimen.
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The large pectoral fins measure around one-fifth as long as the body, and have a falcate (sickle-like) shape tapering to a point. The first dorsal fin is of moderate size and somewhat falcate, with a pointed apex and a strongly concave rear margin; its origin lies over the pectoral fin free rear tips. The second dorsal fin is much smaller and is positioned about opposite the anal fin. A low dorsal ridge is present between the dorsal fins.
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Forewings brownish with falcate apex. There is a curved transverse fascia found in the medial area. Several black dots found on forewings, but absent in hindwings. Male genitalia with triangular uncus and broad valves.
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Its phylogenetic successor, genus Polyplectus has an oxycone shell with acutely angled venter, without differentiated keel and has also smaller umbilicus. There is difference in suture too, where Polyplectus has 3, or more auxiliary saddles. Harpoceras serpentinum, which has lived in the same time has a much wider umbilicus, ribs with shorter inner halves and a series of undulations at the falcoid bend of the ribs. Harpoceras falciferum has falcate ribs, much wider umbilicus and a spiral groove at the falcate bend of the ribs.
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Originating below the fourth pair of gill slits, the pectoral fins are short, broad, and falcate (sickle-shaped) with pointed tips. The first dorsal fin is tall and falcate with a distinctively long free rear tip, and is positioned just behind the pectoral fin bases. The second dorsal fin is large and tall without a notably elongated free rear tip, and is positioned over or slightly behind the anal fin. Usually there is no midline ridge between the dorsal fins, and when present the ridge is slight.
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The smallmouth scad has an elongate oval to oblong shaped body which is strongly compressed. The snout is blunt, and both the ventral and dorsal profiles are equally convex. The dorsal and anal fins both have a low profile, and are not falcate, while the pectorals are falcate and extend beyond the junction of the curved and straight lateral line. The curved section of the lateral line is strongly arched, rising from the origin at the operculum and terminating at the junction with the straight section.
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The Mahathala ameria, the falcate oakblue,"Mahathala Moore, 1878" at Markku Savela's Lepidoptera and Some Other Life Forms Retrieved April 21, 2018. is a species of blue butterfly, of the family Lycaenidae found in South-East Asia.
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The forewing apex is inconspicuously falcate and the exterior margin is straight. The forewings and hindwings each have a dark discal spot. The larvae feed on the leaves of Camellia tenuifolia and Camellia sinensis. They are gregarious.
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The two species are separated by lowlands in Assam and the Indian state of West Bengal. R. brandisii is usually smaller, with narrower falcate leaves and smaller purple flowers with a long white tube at the base.
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It is similar in form to Iris germanica. It has evergreen, glaucous and smooth leaves. Most are ensiform (sword-like) but a few were falcate (sickle-shaped). They can grow up to long and between 3 cm wide.
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Pseudathyma falcata, the falcate false sergeant, is a butterfly in the family Nymphalidae. It is found in Guinea, Ivory Coast, Ghana, Togo, and western Nigeria.Afrotropical Butterflies: Nymphalidae - Tribe Adoliadini The habitat consists of forests. Adult males mud-puddle.
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The forewing is more slender and slightly more falcate than Xylophanes crotonis. The forewing upperside ground colour is greenish-brown (fading to reddish-brown). The first postmedian line is sometimes slightly duplicated, giving the impression of a supernumerary line.
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Xylophanes monzoni is a moth of the family Sphingidae. It is known from Guatemala. The length of the forewings is about . It is similar to Xylophanes falco, but generally darker, with a more diffuse pattern and less falcate forewings.
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Astragalus falcatus has conspicuously ' pods; not many falcate anatomical structures are so markedly curved. Rhigozum obovatum bears its leaves in well-defined s. Favolaschia calocera, the orange pore fungus, has conspicuously ' fruiting bodies. Emerging leaves of Oldenburgia grandis are heavily '.
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The dorsal fin is relatively small, at and about two thirds of the way back on their bodies. It is falcate (sickle-shaped) and usually pointed. The back is mid-to-dark grey with a lighter underside. They weigh approximately .
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Male with tibia, first tarsal joint of mid-legs and all joints of hindlegs are fringed with long hair. Forewings with arched costa towards apex, which is somewhat falcate. Hindwings with short cell. Vein 5 from close to lower angle.
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Adenodolichos rhomboideus grows as a subshrub. The leaves consist of three ovate leaflets, measuring up to long, puberulous above and pubescent below. Inflorescences are terminal, featuring crimson or purple flowers. The fruits are oblanceolate or falcate pods measuring up to long.
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The flat evergreen phyllodes have a falcate narrowly elliptic shape that tapers gradually towards apex and base. They are in length with a width of with three 3 main conspicuous nerves. The tree flowers between May and June, producing yellow inflorescences.
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Clanis surigaoensis is a species of moth of the family Sphingidae. It is known from the Philippines. The wingspan is about 78 mm. It is very similar to Clanis titan but the forewing apex is more attenuated and slightly falcate.
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Lieinix nemesis, the frosted mimic-white, nemesis mimic white or falcate dismorphia, is a butterfly in the family Pieridae. It is found from Mexico to Peru. The habitat consists of mid-elevation cloudforests.Butterflies of the Amazon and Andes The wingspan is .
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Underside of the wings The only similar species in the falcate orangetip's range is the Olympia marble (Euchloe olympia). The upper side of the Olympia marble's forewing has a grayish-black apex and the underside of the hindwing has yellow-green marbling.
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They later fade to a grey-green colour. They are often flushed purple at the base. They are ensiform (sword shaped),John Wilkes (Editor) glaucescent, and falcate (sickle-shaped). They can grow up to between long, and between 2 and 3 cm wide.
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Haploceratoidea are typically compressed, discoidal Ammontida that may be keeled or unkeeled, tending to be oxyconic, with usually falcoid or falcate ribbing. The aptychi are paired and differ between families and have been found in situ in e.g. Oppelia subrudiata and in Pseudolissoceras.
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The anther connective (i.e. the tissue connecting the two halves of the anther) of the centre-most stamen has a broad transverse band of violet. The spathes are solitary, borne on a peduncle and typically falcate (i.e. sickle-shaped) with a cordate (i.e.
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James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) They are falcate (or sickle shaped), with membranous margins. The leaves can grow up to long, they are shorter (than the flowering stem) at the time of blooming. They are between 0.2 – 0.5 cm wide.
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Strepsigonia diluta is a moth in the family Drepanidae. It is found in the north-eastern Himalaya, China, Taiwan, Java, Sumatra, Peninsular Malaysia, Borneo and Seram. The wingspan is .digimuse Adults are pale ochreous fawn with simply falcate (sickle-shaped) forewings in both sexes.
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The slender foliage has a silvery coloration. The dull, green, thin, concolorous adult leaves have a disjunct arrangement. The leaf blade has a linear or narrow lanceolate shape and is falcate, acute and basally tapered. Leaves are supported on narrowly flattened or channelled petioles.
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The forewings are falcate (sickle shaped) in both sexes. The larvae feed on Mangifera species. They can be found on the upperside of the leaves of their host plant, stretched along the midrib. The larvae resemble bird droppings and are greenish black, streaked with grey.
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Plants are 8–12 cm tall on monopodial stems of 1–6 cm. There are usually between 4 and 20 narrowly oblong-falcate (hence the epithet) leaves of 5–12 cm. that are leathery and sheathed at the base. The inflorescence, including flowers, is 5–8 cm.
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Adenodolichos rupestris grows as a woody herb, measuring up to long. The leaves consist of three elliptic or obovate leaflets, measuring up to long, glabrous above and pubescent below. Inflorescences, in racemes, feature purplish flowers. The fruits are oblanceolate or falcate pods measuring up to long.
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Xylophanes schreiteri is a moth of the family Sphingidae. It is known from Argentina and Bolivia. The wingspan is 71–92 mm. It is similar to Xylophanes resta, but both forewings and hindwings are apically more falcate and the outer margin of the forewing is straighter.
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They are slightly falcate (sword shaped). It can be variable in height in the wild (30–45 cm). Generally, it grows up to 45 cm (18 in) high, The branched flowering stems can be as tall as the leaves. There are normally 2–3 flowers per stem.
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Pyriculariaceae is distinguished from Magnaporthaceae by their asexual morphs. Pyricularia or pyricularia-like species are characterised by pyriform 2-septate conidia and rhexolytic secession. In the case of Magnaporthaceae, morphology of phialophora- or harpophora-like species is characterised by falcate versicoloured conidia on brown, erect conidiophores.
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It has a small, red rhizome, which is about 1 cm long, and medium thick.British Iris Society (1997) Underneath the rhizome are long secondary roots. The rhizome and roots make a creeping plant. It has narrow, falcate (sickle-shaped), leaves, that can grow up to between long.
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They later grow up to 10–25 cm long and are between 5-10mm wide. Unusually unlike other Juno irises they do not have a white margin. They grow from the base of the plant, they are slightly falcate (sickle-shaped) and greyish-green. The allisonii subsp.
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Sea chubs are easily recognized by distinct morphological characteristics such as their ovate-shaped bodies, small mouths, and weakly- forked strong caudal fin. A key characteristic also being a spinous dorsal fin with low spines followed by a higher evenly curved or falcate soft dorsal fin.
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I. paradoxa is a rhizomatous herbaceous perennial. The rhizomes are slender and usually less than 1 cm in diameter.British Iris Society (1997) It also has secondary roots underneath the rhizomes. It has greenish-gray, or blue-green leaves, that are recurved or falcate (sickle- like) shaped.
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It holds between 1, and 2 terminal (top of stem) flowers, in late spring and early summer, in June. It has evergreen, grey-green, or blue-green, or glaucous leaves. They are falcate, or recurved. The narrow leaves, can grow up to between long, and between 5 -6mm wide.
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The evergreen grey-green, flat phyllodes usually have very narrowly elliptic shape and are straight to falcate with a length of and a width of with three to six prominent main veins that are continuous to the base. It blooms between August and late October producing golden coloured flowers.
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Sarcinodes is an genus of moths in the family Geometridae erected by Achille Guenée in 1857. The species are large with pinkish, mauvish or brownish-gray body and wings. The wings are traversed by between one and three oblique, straight fasciae. The forewing apex is acute, slightly falcate.
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Persoonia falcata grows as a woody shrub or small tree, anywhere from high. The thick dark grey bark is layered and flaky. The pale green-grey leaves are long and wide, and oblanceolate to linear-oblanceolate or falcate in shape. The yellow flowers appear from June to November.
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Raceme is inflorescent and dense, with white coloured flowers. It corolla is of purple colour and is with right tube being bent. The galea is falcate, long and rounded at the front. The plant' capsule is by , and is both apiculate and lanceolate with the seeds being long.
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Lagocephalus lagocephalus oceanicus, is a pufferfish of the family Tetraodontidae, found in the western Pacific Ocean in temperate and tropical waters. Its length is up to 45 cm. The dorsal and anal fins falcate, the caudal fin is lunate. The lower one third of the pectoral fin is white.
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Magnaporthaceae are distinguished from Pyriculariaceae by their asexual morphs. For Magnaporthaceae, the morphology of phialophora- or harpophora-like species is characterised by falcate versicoloured conidia on brown, erect conidiophores. In the case of Pyriculariaceae, Pyricularia or pyricularia-like species are characterised by pyriform 2-septate conidia and rhexolytic secession.
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Adenodolichos baumii grows as a shrub, measuring up to tall. The leaves consist of three oblong leaflets, measuring up to long, puberulous above and pubescent below. Inflorescences are terminal, featuring crimson to purplish to near black flowers. The fruits are oblanceolate or falcate pods measuring up to long.
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The anal fin has two detached anterior spines, followed by one spine and 17 to 19 soft rays. The lobe of the soft dorsal fin is falcate, being about the same length as the head. The pelvic fin consists of one spine and 18 or 19 soft rays.
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The leaves are ovate with irregular wavy edges. The petiole has a few long hairs growing on it. The flowers are bi-colored, growing less than long. The upper lip is a very pale lavender color and falcate; the lower lip is shorter and a very pale yellow color.
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Each Pod contains around three to nine round-shaped seeds. The pods are formed falcate or twisted in a wide spiral. The seed coat of a young seed shows a yellow-green colour and turns into dark brown during ripening. Then the ripe fruit dehisces along the ventral suture.
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It has a thick rhizome, which is up to 3 cm thick and nodular. It has the fibrous remains of last seasons leaves, on top of the rhizome. It has falcate (sickle-shaped), blue- grey, or grey. It has a slender stem, that can grow up to between tall.
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Iris maracandica Iris maracandica is similar in form to Iris bucharica. It has bulb (approx.) 2 cm in diameter, with thickened fusiform roots (spindle-like). It has falcate shaped leaves, that are 1.5 – 2 cm wide close to the base of the plant. The leaves have a silver edge.
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Red or red striped leaves, Linear and falcate.10–15 cm long and 6-13mm wide with an average width of 10mm, Leaf margins are almost entire with serrations visible towards the tip, Leaf sheath is wide and compressed and measuring 15-30mm long and appears pink in color.
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It is similar in form to a dwarf form of an Iris aphylla. It has partially exposed rhizomes, that branches to form a dense clump. It has falcate (sickle-shaped), grey-green leaves, deciduous, simple, sheathing leaves. They can grow up to long, and between 1.5 and 2.5 cm wide.
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The other fins have no distinctive markings, but do have pale posterior edges. The blackspot shark can be confused with the whitecheek shark (Carcharhinus dussumieri), but that species has a triangular first dorsal fin that is only slightly falcate, and a small second dorsal fin that merely has a dark margin.
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The trailing edge is typically concave, but not falcate. The fluke has a notch in the middle. This dolphin has no rostrum. Sexes are easily distinguished by the different shape of the black blotch on the belly — it is shaped like a teardrop in males but is more rounded in females.
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I. nectarifera has a stout rhizome with long stolons. British Iris Society It has 6-8 leaves which are wide and falcate (sickle-shaped). Over all the plant can grow up to tall, with flowers blooming in April. They are in diameter and flushed purple on a white or yellowish base.
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The distal margin of the forewings has a falcate apex and dentate process dividing the more dorsal half. Facies on the dark greyish ground are the paler grey antemedial band. Transverse white dash of the reniform and submarginal black flecks found near the apex. Eggs depressed and light green dome shaped.
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The undersides of Bebearia however are invariably cryptically patterned and often resemble dead leaves. In Euphaedra the underside is usually yellow with black spots and pink basal patches. Euphaedra have orange palpi while those of Bebearia are brown. In Euphaedra the forewing apex is always rounded and not falcate (sickle shaped).
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The ovary is oblong and covered in long, reddish-brown hairs. The style is glabrous, compressed, curved to falcate in shape and some 21.2mm long. It is obliquely dilated above the ovary, then gradually tapering. The stigma is 3.2mm long, thread-like in shape, obtuse, and almost imperceptibly becomes the style.
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Tuart has box-like rough bark over the length of the trunk and branches. The bark is fibrous and grey in colour and breaks into smaller flaky pieces. Leaves are stalked, alternate, with a lanceolate or falcate shape. The leaves are slightly discolorous to concolorous, glossy, light green and thin.
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Anthocharis midea, the falcate orangetip, is a North American butterfly that was described in 1809 by Jacob Hübner. It belongs to the family Pieridae, which is the white and sulphurs. These butterflies are mostly seen in the eastern United States, and in Texas and Oklahoma. They eat the nectar of violets and mustards.
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The pectoral fins, which have 21 to 23 rays, are falcate and flexible, and can be drawn in to the sides of the body. Nape is highly elevated. The upper jaw forms a robust but not very long beak, round in cross section. Caudal peduncle shows strong double keels on each side.
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Ribs are falcoid or falcate and thus biconcave, strong and projected. Sometimes, ribs can be broad and flat topped on outer part of whorl and in some species they can be striate on inner part of whorl. Some species have midlateral groove, or series of undulating depressions on inner half of whorl.
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Iris iberica subsp. elegantissima is a subspecies in the genus Iris, subgenus Iris and section Oncocyclus. It is a subspecies of Iris iberica and is a rhizomatous perennial, from Armenia, Turkey and Iran. It has large, thin and falcate (sickle-shaped) leaves, slender stem with a single flower between April and May.
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Eucalyptus angularis is a mallee that grows to a height of approximately and forms a lignotuber. It has grey rough to flaky bark lower on the stem and smooth above and angular branchlets. The leaves are glossy green with a blade that is lanceolate to falcate and are long and approximately wide.
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Meristem tissue is often fibrillose. The branch stems are green, with pinkish coloration at the proximal ends, and the cortex region is enlarged. The leaves on the branches are ovate-lanceolate to lanceolate in shape, and are between 1.6–5 mm in length. These leaves falcate back towards the tips of the branches.
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The dorsal fin is small, slightly falcate, and triangular, and sits on a distinctive and well developed dorsal hump. Birth weight – at least 22 lb (10 kg) Adult weight – 550-630 lb (250–285 kg) Berta, Annalisa, editor. Whales, Dolphins & Porpoises: A Natural History and Species Guide. University of Chicago Press, 2015.
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Podocarpus parlatorei is an evergreen shrub or tree that grows up to 15 (occasionally 30) meters high. The trunk is straight and cylindrical and branches often grow from close to the ground. The leaves are linear to falcate (sickle-shaped), straight, long, wide, with an acute pungent apex. The seeds are spherical, long.
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The tree typically grows to a height of with fissured, fibrous grey bark. It blooms from May to July producing yellow flowers. The tree oftan has an obconical form with glabrous branchlets and pale-citron-sericeius new shoots. The falcate, linear, widely spreading phyllodes have a length of and a width of .
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The wingspan is 17–26 mm. This quite- common moth has dark brown forewings with a striking falcate medio-dorsal white marking and a gray-colored area at the ends of the wings. The shape of the white marking is quite variable. This species has one generation and the mature caterpillars overwinter.
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Leptogenys is a genus of ants in the subfamily Ponerinae. Leptogenys is the most diverse ponerine ant genus in the world; it is widespread throughout tropical and subtropical regions and there are over 260 extant species described. Most species have ergatoid queens, and many have falcate, bowed mandibles and are specialists on isopod prey.
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The size difference between the apical and subapical tooth is much greater than in other species. Many socially parasitic ant species have falcate mandibles associated with their ability to attack and subdue hosts. Perhaps the long apical tooth of M. reina is such an adaptation, strengthening the conjecture that it may be a social parasite.
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Dicranoloma dicarpum plants are dull to bright green in colour, growing to form cushions or tufts. Stems are often branched, and range from 0.5-7.5 cm tall. The leaves are 3.0-12.4 mm long and 0.5-0.16 mm wide. They are falcate (curved into a sickle shape), spirally twisted, and taper to a pointed tip.
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The ovary is 4.2mm long, oblong-elliptic, and covered with long, reddish-brown hairs. The style is 23.3mm long, falcate and glabrous, narrowing from the base upwards and flattened at the upper parts. The finely channeled stigma is 5.3 long, ends in a blunt point, and almost imperceptibly joins together and becomes the style.
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The apical glands are 0.35 mm in length, ovate in shape and end in an acute point. There are oblong and obtuse (blunt) hypogynous scales which are 1.4 mm in length. The ovary is covered in long, spreading, yellow-brown hairs. The style is 2.65 mm long, falcate, compressed, glabrous and tapers towards both ends.
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Rodriguésia; Revista do Instituto de Biologia Vegetal, Jardim Botânico e Estaçao Biologica do Itatiaya 59: 209-258. Mature fruits (berries) are pyriform, white and contain seeds spread in a fleshy transparent mucilage. Seeds are falcate-shaped, with a narrow micropylar portion, rough texture, brown-red colour and no appendages.Paulo, M. L., & de Paula, C. C. (2018).
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The second dorsal fin is less than a third as high as the first, and originates ahead of the anal fin. There is no midline ridge between the dorsal fins. The long pectoral fins are broad and slightly falcate (sickle-shaped), becoming narrow and pointed at the tips. The anal fin has a sharply notched trailing margin.
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Comparison of falcoid rib of Cleviceras exaratum (1) and falcate rib of Harpoceras falciferum (2) Shells of Cleviceras show dimorphism in their size. While microconchs reach 16–62 mm in diameter, macroconchs shells width is 85–200 mm. They are moderately involute, compressed and have flat whorl sides. Umbilical walls can be sloping, vertical, or undercut.
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Hildoceratinae is an extinct subfamily of cephalopods belonging to the family Hildoceratidae. Ammonites of this subfamily had shells with elliptical or quadrate whorl section with keel or tricarinate, bisulcate venter. Ribs were variable, from falcate to strongly angled and from fine to strong. They can be interrupted by spiral groove in midlateral part of the shell.
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The pectoral fins of adults are broad and falcate (sickle-shaped). The dorsal fins have nearly vertical trailing margins, with the first originating over the pectoral fin rear tips. The second dorsal fin is about three-quarters as high as the first. The anal fin is much smaller than the second dorsal fin and originates well behind it.
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They are falcate or ovate with an acute base and an acute or rounded apex. The petiole is 0.5 cm long with 3-5 obvious major ribs. Terminal and lateral racemose inflorescences occur at the apex of the branches. The greenish or red ovate flower bracts are persistent and 2.2 cm long by 1.8 cm wide.
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The creeping habit of the ground covering rhizomes, makes small tufts of plants. It has ensiform (sword- shaped),British Iris Society (1997) sub-lanceolate, or falcate (sickle- shaped), blue-grey, or grey-green leaves. They can grow up to between long, and between 1 and 1.8 cm wide. They are generally longer than the flowering stem.
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The scales are present on the belly and breast. They have a pored body, a weakly falcate pectoral fin, and pharyngeal teeth. They have a large mouth, small eyes, and a terminal barbel. Other characteristics include a darkened lateral band, spot on the caudal fin, and red coloration of the fins and iris of the eyes.
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Iris antilibanotica is a species in the genus Iris, it is also in the subgenus Iris. It is a rhizomatous perennial, from the mountains of Syria. It has semi- evergreen, green, falcate leaves, slender stem, bi-coloured flowers, in dark purple, violet. With a small dark spot and purple tipped yellow beard on the outer petals.
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A terminal leaflet is seen on the end of the compound leaf. Leaf stalks vary between 20 mm and no leaf stalk in sub species leptophylla. Leaf shape varies between ovate or elliptic to broad-elliptic in sub species sambucifolia. However the sessile leaflets of sub species leptophylla are oblong linear and somewhat curved (falcate) in shape.
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The keeled, leathery leaves grow to 16 cm long and 4 cm wide. The paniculate inflorescence grows as long as 50 cm, with the alternate, dense racemes emerging from falcate spathesas E. spathaceum, nr. 13 in Lindley "Notes upon the genus EPIDENDRUM", item VII in Hooker, Journal of Botany III(85) London. 1841. 5 cm long.
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The shrub or tree typically grows to a height of and has an erect or spreading habit. It has finely to deeply fissured bark that is grey to black in colour. The glabrous branchlets are angled and commonly terete. It has mostly green phyllode with an oblanceolate or narrowly elliptic shape that are straight to falcate.
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Ailanthus triphysa leaves with larva of Eligma narcissus moth. Young larvae skeletonise leaflets, while older larvae are defoliators. Stem: Bark greyish, lenticellate; blaze yellow with red speckles. Leaves: Leaf bearing twigs 1 cm or more in diameter. Stipules very small Leaflet blades falcate, about 5-12 x 0.9–2 cm, very unequal-sided particularly at the base.
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Oppeliidae are compressed to oxyconic, sculptured Haploceratoidea, either unkeeled, unicarinate, bicarinate, or tricarinate; with sutures in great variety, but ribbing usually more or less falcoid or falcate. The Oppeliidae is the principal family of the Haploceratoidea, with the longest duration, extending from the Middle Jurassic (Bajocian) to the Upper Cretaceous (Cenomanian) Their derivation is from the Hildoceratoidea.
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Illustration of Chanos chanos The milkfish can grow to , but are most often no more than in length. They can reach a weight of about . and an age of 15 years. They have an elongated and almost compressed body, with a generally symmetrical and streamlined appearance, one dorsal fin, falcate pectoral fins and a sizable forked caudal fin.
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The pelvic fins contain 1 spine and 20 soft rays. The caudal fin is strongly forked, and the pectoral fins are falcate, being longer than the length of the head. The lateral line has a pronounced and moderately long anterior arch, with the curved section intersecting the straight section below the lobe of the second dorsal fin.
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It grows to high and has an erect to spreading habit with terete and glabrous branchlets. Like most species of Acacia it has phyllodes rather than true leaves. The decurrent phyllodes which are falcate or sigmoidal in shape and have a length of with a width of . The evergreen phyllodes have many longitudinal veins that are very close together.
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N. buchananii is a tree from 10–40 meter high, forming a loose canopy with a flattish top. It has smooth bark, and the trunk has small buttresses at the base. The leaves are bipinnate, with numerous leaflets (38-67 pairs), linear or falcate 2-9 mm long, tiny and light green when young. It may be deciduous.
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These streaks are bent downward at the apex, and, together with a large patch of brown scales in the subapical cilia, increase the falcate appearance to the wing-tip. They are distinctly visible on the under side. The hindwings are pale shining grey.Trans. Ent. Soc. Lond. 1891 (1) : 96 The larvae have been recorded feeding on Morinda citrifolia.
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Adenodolichos huillensis grows as a shrub, measuring up to tall, or long. The leaves consist of three leaflets, measuring up to long, pubescent to glabrous on the upper surface and glabrous below. Inflorescences are axillary or terminal and feature white, purple, blue or pink flowers. The fruits are oblanceolate or falcate pods measuring up to long.
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Iris acutiloba subsp. lineolata is a species in the genus Iris, it is also in the subgenus of Iris. It is a subspecies of Iris acutiloba, and is a rhizomatous perennial, from the mountains of Iran, Turkey, Turkmenistan, Tajikistan and Azerbaijan. It has narrow, lanceolate, or falcate (sickle- shaped) leaves, which are grey-green and glaucous.
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Gerontoformica is characterized by a row of peg like projections along the front edge of the clypeus, a feature not seen on other Cretaceous ant genera. The mandibles have a falcate shape, being curved to sickle shaped overall. The mandibles have a distinct tooth at the tip and a secondary tooth just back from the tip.
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Upright shrub to small tree 3 – 8m in height with a definite main stem up to 400mm in diameter, crown uneven and spreading. Bark black to dark brown with net-like fissures when mature. Leaves linear-elliptic to linear-falcate, narrow to broadly elliptic, narrow to broadly invert lanceolate, occasionally falcate; 70 – 250mm in length, 4 – 45mm wide, tips blunt to acuminate; smooth, leathery to thin and papery, light green to glaucous green, have a tendency to clump in each year's growth. Flowers carried at the end of leafy twigs 4 – 12mm in diameter, usually singly but up to 4 heads may be grouped at the tip; globose to egg-shaped, broad and shallow when fully open, 45 – 80mm in diameter, base broad convex to flat, 20 – 30mm in diameter.
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The white grunt is a silvery cream color with numerous yellow and blue horizontal stripes present throughout the body. The head is long with a distinct snout, and falcate pectoral fins and a forked caudal tail are also present. H. plumieri also has numerous dorsal spines and rough teeth. Unlike groupers or snappers, grunts have a strong fixed lower jawbone.
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There are five pairs of fairly short gill slits. The pectoral fins are fairly short and pointed, with a falcate (sickle-like) shape. The first dorsal fin is medium-sized and triangular, and originates roughly over the pectoral fin free rear tips. The second dorsal fin is small and low, and originates over the middle of the anal fin base.
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The pelvic fins consists of 1 spine and 17 to 18 soft rays, while the caudal fin is strongly forked and the pectoral fin falcate. The species lateral line is moderately arched anteriorly, with 49 to 50 scales in this section, while the straight section contains 0 to 3 scales and 27 to 36 strong scutes. The breast is completely covered in scales.
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The fairly long and pointed pectoral fins are slightly sickle-shaped (falcate) and originate between the fourth and fifth gill slits. The first dorsal fin is medium-sized and triangular with a pointed apex, and originates over the rear of the pectoral fin bases. The second dorsal fin is small and positioned opposite the anal fin. No ridge exists between the dorsal fins.
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Adult males also have a pair of tusks at the tip of the lower jaw. They are dark brown dorsally and cream-colored ventrally, with a pale band extending up from the flipper and another pale area extending as a swathe on the posterior flank. The tall, falcate dorsal fin is set about two-thirds the way along the back.
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The small pectoral fins are falcate (sickle-shaped) with relatively pointed tips. The first dorsal fin is broad, forming nearly an equilateral triangle in adults, with a blunt apex; it originates over the pectoral fin rear tips. The second dorsal fin is small and originates over the midpoint of the anal fin base. No ridge exists between the dorsal fins.
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Xylophanes rhodina is a moth of the family Sphingidae. It is known from Panama and Costa Rica. It is similar to Xylophanes godmani, but the outer margin of the forewing is entire and almost straight, the apex is less falcate and the tornus is less pronounced. The abdomen has a scattering of long, pinkish-grey scales and a triple dorsal line.
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It creeps across the ground, creating thick clumps of plants.William Cullina It has 8–12 sheathing, (fan-like), green or light green, basal leaves. They are falcate (sickle-shaped) or sword-shaped, and linear,Merel R. Black and Emmet J. Judziewicz and long and 10–8 mm wide. After flowering, the leaves elongate up to long and 10 mm wide.
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Acacia leptocarpa normally grows as a small tree, in height but can reach as high as , although it occasionally flowers as a shrub as low as tall. It has dark grey to almost black coloured bark of the ‘ironbark’ type. The angular branchlets are lenticellate and glabrous. The phyllodes have falcate shaped blades with a length of and a width of .
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It has a small rhizome,British Iris Society (1997) and several stolons, which are long. It can form small clumps of plants. It has 6–8, grey-green, strongly falcate (sickle shaped), or strongly curved, and reflexed leaves, which can grow up to between long and about 1 cm wide. It has a slender stem or peduncle, that can grow up to tall.
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The shrub or tree typically grows to a height of and has a bushy habit and pendulous young branchlets with reddish coloured new growth. It has acutely angled, dark red, glabrous brnachlets. Like most species of Acacia it has phyllodes rather than true leaves. The thin grey-green phyllodes have a narrowly elliptic to lanceolate shape and are straight to shallowly falcate.
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It has glaucous, or bluish green, or grey-green leaves,James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) that are generally linear or ensiform (sword shaped). Although the outer leaves can be falcate (sickle-shaped). They can grow up to between long, and between 0.4 and 1 cm wide. The foliage dies back after flowering and becomes dormant during the summer.
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British Iris Society (1997) It has erect, falcate (sickle shaped) leaves that can grow up to between long and between 2.7 cm wide. It has a slender green stem or peduncle, that can grow up to between tall. It is classed as a dwarf species. It is similar in size to Iris kashmiriana, but the rest of form is very different.
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Another example is Pseudolioceras, whose unkeeled specimen was used as type for description of invalid genus Praehaploceras. Oxyconic forms of this subfamily (Polyplectus and Sphenarpites) does not have any keel. Ribs were single, but in some genera also bifurcating with shapes from sigmoidal to falcate. Sometimes, shell can have only striate ribs or is smooth (Sphenarpites and older specimens of Eleganticeras and Ovaticeras).
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They may be plane and falcate, or linear and ribbed. Various forms of scape occur; they may be either subterranean or aerial, and simple or branched. The inflorescence is a spike, sometimes contracted and fasciculate or a corymbose panicle. There are firm, green bracts, either small and subequal, or with the outer bract very large, often keeled, crisped and ribbed.
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Unlike the army ants of the New World, Old World army ants have a functional sting but rarely use it, preferring their razor-sharp, falcate mandibles for defense instead. Dorylus spp. colonies also reach larger sizes than Eciton. The Pogonomyrmex maricopa, found in Western US, are bright red myrmicine ants whose venom is the most potent of any ant species.
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The species was first formally described by the botanist George Bentham in 1864 as part of the work Flora Australiensis. It was reclassified as Racosperma harpophyllum by Leslie Pedley and transferred back the genus Acacia in 2001. The type specimen was collected from around Rockhampton. The specific epithet is in reference to the falcate shape of the phyllodes on the tree.
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When they occur, the hairs often branch into a star-like shape. The stem scales are iridescent, a distinctive feature of the species. The pinnae, which are alternate on the rachis, range in shape from oblong-falcate (somewhat sickle-shaped) to long-triangular. They are asymmetrical at the base, being attached directly (without petioles) to the rachis near one corner of the pinna.
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They gradually narrow to an apex (falcate-like or lanceolate), and have a very visible white edging/margin. One of the shorter Juno irises, similar to Iris leptorrhiza, only growing to a height of . It blooms in early-mid spring, flowering between January to April depending on the weather conditions. It has 1 or 2 scentless flowers per bulb stem.
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It has a rhizome that is very similar to other Oncocyclus irises.Richard Lynch They are brown, small, slender, (around 1 cm wide),British Iris Society (1997) and short. They are branched, with reddish secondary roots, and have a creeping habit, across the ground. It has narrow, lanceolate, or recurved, and falcate (sickle-shaped) leaves, which are grey-green, and glaucous.
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Tridrepana sadana is a moth in the family Drepanidae. It was described by Moore in 1865. It is found in China (Hubei, Tibet), India, Nepal and Myanmar. Adults are similar to Tridrepana finita but are much bigger, the apex of the forewings is more falcate (sickle shaped), the postmedial line is double and there is a pale grey terminal line.
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The variety grown in horticulture is very pale blue, verging on cream, with a falcate upper lip. The small calyces are typically violet-purple. The inflorescences are short, with a main flowering stem that has alternating pairs of flower stems at right angles to each other, a botanical arrangement known as decussate. The mathematically precise flower structure gives the plant a striking appearance.
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The fins are strongly falcate (sickle-shaped), particularly the dorsal fins, pelvic fins, and lower caudal fin lobe. The pectoral fins are narrow and pointed. The first dorsal fin is positioned about halfway between the pectoral and pelvic fins. The second dorsal fin is about two-thirds as tall as the first and is positioned slightly ahead of the anal fin.
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Acacia binervia grows as a shrub to small tree anywhere from high. The bark is dark brown to grey in colour, and the elliptic to sickle-shaped (falcate) phyllodes are in length and wide. The cylindrical yellow flowers appear in spring (August to October). Flowering is followed by the development of 6–8 cm long seed pods, which are ripe by December.
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The first dorsal fin originates over the free rear tips of the pectoral fins; it is large and falcate (sickle-shaped) with a pointed apex. The second dorsal fin is positioned opposite the anal fin and is relatively large and high. There is no ridge between the dorsal fins. A crescent-shaped notch is present on the caudal peduncle just before the upper caudal fin origin.
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The upper teeth have a single, narrow, oblique cusp with strongly serrated edges, and large cusplets on the trailing side. The lower teeth are similar, but tend to be more slender and finely serrated. The five pairs of gill slits are short. The pectoral fins are short, pointed, and falcate (sickle-shaped), while the pelvic fins are small and triangular with a nearly straight trailing margin.
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Iris basaltica is a species in the genus Iris, it is also in the subgenus Iris and in the section Oncocyclus. It is a rhizomatous perennial, from the basalt deserts and hillsides of eastern Syria. It has many falcate long leaves, and long stem. Between March and April, it has white or pale green flowers covered in thick purple or black veining and dots or spots.
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The leaves are narrow and falcate (sickle-shaped), they can be between 2 cm and 3 cm wide, and can grow as long as the stem. They can often be distorted. It has a short stem or peduncle, that can grow up to between tall. The stem has a green, lanceolate, spathes (leaves of the flower bud), and a 1 cm long pedicel holding a single flower.
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Falcitornoceras is a goniatitid ammonite from the Late Devonian, early Famennian, that has been found in France and Spain. Falcitornoceras was named by House and Price, 1985, and is the type genus for the subfamily Falcitornoceratinae. The shell of Falcitornoceras is strongly involute, lacking an umbilicus. Juvenile stages have falcate ribs which cross the ventral rim; the ventro-lateral area bears weak to strong furrows.
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It is either pointed or narrowly rounded at the apex and its origin is directly over the free posterior end of the pectoral fins. The second dorsal fin is relatively large. It also has a short rear tip and its origin is slightly behind the origin of the anal fin. The pectoral fins are falcate, long and narrow, and taper to a blunt point.
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Their apices are acuminate, and the costa range from 50-80% of the leaf length. Its alar regions are narrowly transversely triangular and roughly reach the costa. The moss is sexually autoicous. Warnstorfia fluitans is distinguished from Warnstorfia pseudostraminea, the other autoicous species in its genus, by its more broadly triangular alar groups and more straight to slightly falcate stem leaves with hooked apices.
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Eucalyptus apothalassica typically grows to a height of around and forms a lignotuber. The rough, fibrous, grey or grey-brown bark sometimes feels prickly to touch The bark is attached to the trunk in flat strips rather than typical stringybark. The dull or glossy, green, concolorous adult leaves are alternately arranged. The leaf blade has a lanceolate to falcate shape and is in length and wide.
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Acrochordonichthys gyrinus, the Falcate chameleon catfish, is a species of catfish of the family Akysidae. A detailed discussion of this species's relationship with the other members of its genus can be found on Acrochordonichthys. This species is endemic to Thailand and is only known from the Yom River in the upper Chao Phraya River drainage. It is known to live in tropical, freshwater areas.
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It has a swollen, fleshy rhizome, that is up to 2.5 cm in diameter. The rhizomes, like others creep along the surface of the ground. It has 5-9 basal leaves (growing from the rhizome), that are ensiform (sword-shaped) or falcate (sickle-shaped), grey-green and glabrous (hairless). The leaves can grow up to between long and between 0.5 and 2.5 cm wide.
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It has a small compact rhizome,British Iris Society (1997) that only reaches up to 2 cm long. They are stoloniferous, and are planted flush with the ground level, so that the upper part of the rhizome can be heated by the sun. It has 7–8 semi- evergreen, green, falcate (sickle-shaped) leaves. They are similar in form to the leaves of Iris iberica.
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It is similar in form to Iris pseudopumila, Iris pumila and Iris attica. It has a rhizome, and has falcate (sickle-shaped), or straight leaves, that can grow up to between long, and between 0.5 and 1 cm wide. They are normally longer than the flowering stem, and die back at winter. It has a dwarf stem, that can grow up to between tall.
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It has glaucous green leaves, that are falcate (or sickle-shaped) or bent slightly above middle of the leaf. They can grow up to between long and 1–1.5 cm wide. They have an acuminate (or pointed) end. It has leafless, stems that can reach up to between long. The stem has 3, lanceolate, spathes or bracts (leaves of the flower bud), which are long and wide.
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The axis is convex, and less than ½× as wide as each of the so-called pleurae to its sides. Segments pointed sideways with a rounded front (a shape called falcate). The tailshield (or pygidium) is about ½× as wide as the cephalon, almost twice as wide as long, excluding the two, widely spaced spines. These are at an angle of approximately 30° with the rest body.
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Common minke whales are among the most robust members of their genus, the greatest height of their body being one-fifth their total length. They have a narrow, pointed, triangular rostrum with a low splashguard. Their prominent, upright, falcate dorsal fin averages about in height – range – and is set about two-thirds the way along the back. They are dark gray dorsally and clean white ventrally.
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The first dorsal fin is tall and slightly falcate (sickle-shaped), originating behind the pectoral fin bases; its free rear tip lies over the origin of the pelvic fins. The second dorsal fin is smaller than the first, but still rather large, with a concave, trailing margin. The pelvic fins have nearly straight trailing margins. The anal fin is taller and longer than the second dorsal fin.
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The southern bottlenose whale measures 7.5 m (25 ft) in length when physically mature, considerably smaller than the northern bottlenose whale. The beak is long and white on males but grey in females. The dorsal fin is relatively small at 30–38 cm (12–15 in), set behind the middle of the back, falcate (sickle-shaped), and usually pointed. The back is light-to-mid grey.
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Bebearia partita, the falcate forester, is a butterfly in the family Nymphalidae. It is found in Cameroon, the Republic of the Congo, the Democratic Republic of the Congo (Mongala, Uele, Ituri, north Kivu, Tshopo, Equateur, Kinshasa, Cataractes, Kwango, Sankuru and Lualaba) and Uganda (Semuliki National Park and Toro).Afrotropical Butterflies: Nymphalidae - Tribe Adoliadini The habitat consists of forests. The larvae feed on Hypselodelphys species.
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It has a short, brown rhizome, that is creeping and stoloniferous. It has 5-7 leaves,British Iris Society (1997) which are linear in the middle, but falcate or sickle-shaped, on the outside.Richard Lynch They are similar in form to Iris sari but are narrower.John Weathers The glaucescent, greyish green leaves, can grow up to between long, and between 0.8mm and 1.2 cm wide.
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The bark of the specimen planted in Kirstenbosch botanical garden. Cone of Encephalartos woodii It is palm tree like, and can reach a height of . The trunk is about in diameter, thickest at the bottom, and topped by a crown of 50–150 leaves. The leaves are glossy and dark green, in length, and keeled with 70–150 leaflets, the leaflets falcate (sickle- shaped), long and broad.
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Iris kuschakewiczii has a 1.5 cm (in diameter) bulb, with a paper tunic-coating. It has thickened storage roots, close to the base. It has 4-5 dark green glaucous leaves which gradually taper to the apex, (falcate), They are clustered together at the base, and are 1-1.5 cm wide (close to the base). They also have a contrasting white edge or margin.
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Falcatula cymatodes is a moth of the family Sphingidae. It is known from lowland forests in Ivory Coast, Ghana, Nigeria, Cameroon, Gabon, Uganda and the Central African Republic. The length of the forewings is 28–32 mm for males and 34–38 mm for females. The forewings of the male are very falcate with a slightly crenulated outer margin and a sharply angled tornus.
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The species is very similar in form to Iris sofarana, another Oncoyclus iris, from Syria and Lebanon. It has a short and compact brown rhizome,British Iris Society (1997) thick secondary roots and fine root hairs. Above the rhizome, there are 5-8 curved or falcate leaves of green or grey-green color. The narrow leaves, Leaves can grow up to long and up to 1 cm wide.
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Iris timofejewii is a species of flowering plant in the genus Iris, and also in the subgenus Iris. It is a rhizomatous perennial, from the mountain slopes of the Caucasus and Dagestan. It has narrow, evergreen, falcate (sickle- shaped), grey-green (glaucous) leaves, and a short flowering stem just taller than the leaves. Each stem has 1–2 flowers in shades of violet, with white beards that have purple tips.
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Acraea perenna, the falcate acraea, is a butterfly in the family Nymphalidae. It is found in Senegal, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria, Cameroon, the Republic of the Congo, Angola, the Democratic Republic of the Congo, Uganda, Kenya, Ethiopia, Tanzania, Malawi and Zambia. The habitat consists of forests and forest-savanna mosaic in hilly country. It is thought to be the main mimicry model for Graphium ridleyanus.
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The coriaceous and evergreen phyllodes have an elliptic to obliquely narrowly elliptic shape that narrows swiftly into the broad pulvinus,. The flat and falcate phyllodes have a length of and a width of and have a hooked apex with two or three prominent main veins. It blooms between July and September producing golden flowers. The cylindrical flower-spikes have a length of and are covered with bright yellow flowers.
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The spotted houndshark grows to a length around or exceptionally . It is a robust species with a rounded snout, widely separated, lobed nasal flaps, and long upper lip grooves that extend as far as the junction of the jawbones. The teeth have straight, erect cusps and are not blade-like. The first dorsal fin has a sloping posterior margin and the pectoral fins are broadly falcate (long and curved).
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Charaxes paphianus, the falcate red charaxes, is a butterfly in the family Nymphalidae. It is found in Sierra Leone, Guinea, Liberia, Ivory Coast, Ghana, Togo, Nigeria, Cameroon, Gabon, the Republic of the Congo, the Central African Republic, Angola, the Democratic Republic of the Congo, Uganda, Sudan and Kenya.Afrotropical Butterflies: File H - Charaxinae - Tribe Charaxini The habitat consists of primary lowland evergreen forests. The larvae feed on Acacia species, including A. brevispica.
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It shows short, falcate, unidentate blades within compound chaetae. Its anterior parapodia count with about 5 compound chaetae each, its blades ranging between 4 and 6µm long. Posterior parapodia have 4 compound chaetae each, with blades measuring approximately 4.5 µm in length. The simple dorsal chaetae from chaetiger 1 is unidentate and nearly smooth on its margin, while the simple ventral chaetae on its posterior parapodia is sigmoid and unidentate.
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The flowers are a little more than 1 cm across, with green sepals and petals, and a white lip with purple spots. The sepals are oblong-obtuse, 1 cm long, and 3–4 mm wide; the falcate revolute lateral sepals are slightly shorter and wider than the plicate dorsal sepal. The linear petals are much narrower than the sepals. The deeply trilobate lip is adnate to the column to its apex.
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It is similar in form to Iris germanica, but it has more curved leaves (or sickle-shaped,) greener, and longer leaves, the stem is less glaucous,British Iris Society (1997) and it has less scarious (membranous) spathes. It has a thick rhizome, with many stoloniferous and fibrous branches. The rhizomes grow at ground level. It has herbaceous, (or deciduous), falcate (sickle-shaped), light green and slightly glaucous leaves.
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It is a small, deciduous tree or shrub growing up to 6 m (rarely to 10 m) tall, often with a dense cluster of stems from its base. The bark is light brown, smooth, scaly, inner bark reddish purple. The branchlets are pubescent at first, later smooth, light orange brown, marked with occasional white dots, finally dark or reddish brown. The foliage buds are acute, slightly falcate, downy, light brown.
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The small mouth is arched and, unlike in other thresher sharks, has furrows at the corners. The species has 32-53 upper and 25-50 lower tooth rows; the teeth are small, triangular, and smooth-edged, lacking lateral cusplets. The five pairs of gill slits are short, with the fourth and fifth pairs located over the pectoral fin bases. The long, falcate (sickle-shaped) pectoral fins taper to narrowly pointed tips.
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It has broad rhizomes that have secondary roots, that can form clumps of plants. It has straight or slightly falcate (or sickle shaped), grey-green leaves, although the base of the leaves is purple violet. They can grow up to between long, and between 1.5 and 2.5 cm wide. Similar to Iris junonia, it is herbaceous, the leaves die in the winter, when they re-grow in the spring.
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Dorsal view Side view Snout butterflies have prominent elongated mouthparts (labial palpi) which, in concert with the antennae, give the appearance of the petiole (stem) of a dead leaf. Snouts often take advantage of this superb camouflage by hanging upside down under a twig, making them nearly invisible. Wings are patterned black-brown with white and orange markings. The forewings have a distinctive squared off, hook-like (falcate) tip.
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The anal fin consists of 2 detached spines anteriorly followed by 1 spine and 17 or 18 soft rays. Both the anal and dorsal fins are elongate, with the dorsal lobe being over twice the length of the head. The pectoral fin is falcate, and also longer than the head. The lateral line has a short, strong anterior arch, with 40 to 45 scutes on the straight posterior section.
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The tree typically grows to a height of less than and scurfy, resinous reddish-brown coloured branchlets. Like most species of Acacia it has phyllodes rather than true leaves. The evergreen, glabrous phyllodes are straight to very falcate and are at their widest just below the middle. They are in length and and have parallel longitudinal nerves that are crowded together usually with two or three more prominent than the others.
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It has a thick, short, rhizome,Andrey Aleksandrovich Fedorov (Editor) that produces nut-like segments, one per year, that spread to create small dense tufts of plants.British Iris Society (1997) On top of the rhizome are the fibrous remains of the previous seasons leaves, underneath are thick fleshy roots. It has greyish-green (falcate) curved leaves, that are covered in very small hairs. They can grow up to long and 2–4 mm wide.
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It is a geophyte, with a rhizome, that is dark brown, large and compact.British Iris Society (1997) It has 9-12 leaves, that are slightly falcate (sickle-shaped) and can grow up to long and between 1.5 and 2 cm wide. It has a slender stem or peduncle, that can grow up to between tall. The stem has 3–4 spathes (leaves of the flower bud), they are normally above the basal leaves.
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Material from Central America and Venezuela is very similar in color and mandibular dentition. Workers are solid black, and the basal teeth of the mandible vary in size, the second from the base being much larger than the flanking teeth. As a result the mandible appears falcate rather than triangular. A collection from Colombia is distinctive, with the color lighter red brown and the basal teeth of the mandible of more uniform size.
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Forewing: costa strongly arched, not falcate (sickle-shaped) below apex, which is slightly truncate; termen slightly concave, tornus rounded but very distinct, dorsum straight. Hindwing broadly pear shaped, the costa, apex and termen roundly curved; tornus slightly produced; dorsum arched, slightly emarginate above tornus. Male has the upperside dark velvety brown. Forewing: basal area, cell and wing beyond apex of latter crossed by broad, short, paler brown bars, and a pale brown pre-apical patch.
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Each pinna is typically 4 cm long and has a finely serrulate or spiny edge, and is oblong to falcate in shape. The fine teeth or spines on the edge of the pinna are oriented towards its tip. Each pinna has a small, triangular, "thumblike" lobe at its base. The light brown spores are produced on fertile pinnae, at the frond's tip, which are conspicuously smaller than the sterile pinnae further down the frond.
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The length of the forewings is about 46 mm. It is similar to Gnathothlibus meeki but differs in the longer, strongly falcate forewings, the red coloration on the underside of the thorax and the hindwing discal spot. The head has a red stripe anterior to the eye and a creamy yellow spot at the base of the antenna. The upperside of the thorax is dark brown with two prominent pale yellow spots.
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They can reach up to long, and between 0.2–0.6 cm wide but the outer leaves are often sickle-shaped (falcate).James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) The leaves appear in February (in Europe) and after flowering they die away completely. The plants can vary in size depending on the location and the altitude. At higher altitudes, the plants are deeper in colour and smaller (around about 10 cm tall).
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Andreaea rothii gametophytes sometimes form extensive black to brown cushion-like patches, with individual shoots erect and less than 2 cm tall. The leaves of Andreaea rothii are 1-2 cm wide, and have a strong costa, which is roughly synonymous to a midrib. The leaves can be falcate-secund, curving to one side of the plant. This is especially true when wet, however the plants do not alter much when dry.
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Some follicles open spontaneously, but most remain closed until burnt by bushfire. Each follicle contains one or two fertile seeds, between which lies a woody dark brown separator of similar shape to the seeds. Measuring in length, the seed is obovate, and composed of a dark brown wide membranous "wing" and sickle-shaped (falcate) seed proper which measures long by wide. The seed surface can be smooth or covered in tiny ridges, and often glistens.
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The anal fin has 2 anteriorly detached spines and 16 to 19 soft rays. The lobes of both the dorsal and anal fins are elongated. The pelvic fins contain 1 spine and 21 soft rays, while the pectoral fins are falcate and longer than the head. The lateral line has a pronounced and moderately long anterior arch, with the curved section intersecting the straight section below the lobe of the second dorsal fin.
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The tree is root-suckering and has hard, furrowed and almost black coloured bark. The glabrous or hairy branchlets are angular at extremities. Like most species of Acacia it has phyllodes rather than true leaves. The coriaceous, sericeous and evergreen phyllodes have a falcate shape with a length of and a width of and have many closely parallel nerves with three to seven of the nerves are more prominent than the others.
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The anal fin has 2 anteriorly detached spines followed by a single spine connected to 16 to 18 soft rays. The lobes of both the anal and dorsal fin are highly extended, giving the species its name. The anal fins also show extension into filaments to a lesser degree. The pectoral fins are falcate to subfalcate with 18-20 rays, while the caudal fin is deeply forked with bilateral, paired caudal keels.
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Dry-season form. Costa of forewing less strongly arched; apex in both sexes very falcate. From the wet-season form it differs in the greater amount of ochraceous yellow on the apex of forewing. This forms a very broad band passing from the costa above and beyond the subapical black spots, spreading below and encircling them except for a narrow band which joins the spots to a large black mark beyond apex of cell.
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The humpback dolphin is a coastal dolphin that can be found along the coast of Africa and India south to Australia, areas differing for separate varieties. The humpback dolphin has a hump ahead of the dorsal fin, as well as a careen on a ventral side. The dorsal fin of the humpback dolphin is to some degree falcate. The pectoral fins are considerably small and the tail flukes have a well-defined median notch.
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The ovary is 8.5mm long, oblanceolate in outline, and covered in long, reddish-brown hairs. The upper part of the ovary is swollen. The style is pallid in colour, compressed, glabrous, over in length, 2.1mm wide but tapers from the base, and becomes falcate after arising from a short, almost straight base. The grooved stigma is 3.2 to 4.2mm long, linear, with an obtuse (blunt) end, and almost imperceptibly joins together and becomes the style.
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The erect tree typically grows to a height of less than and has fissured grey coloured bark. It has light green to brown coloured branchlets that are angular toward the apices but otherwise terete that are sometimes pruinose or scurfy. Like most species of Acacia it has phyllodes rather than true leaves. The phyllodes are flat and falcate with an elliptic to narrowly elliptic shape and a length of and a width of .
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Iris camillae is a species in the genus Iris, it is also in the subgenus Iris and in the section Oncocyclus. It is a rhizomatous perennial, from Azerbaijan. It has narrow, falcate (sickle-shaped) leaves, medium-sized stem and large flowers, where the flower colour is very variable (especially in the wild), ranging from violet, purple, pale blue, and also yellow, and occasionally bi- colour forms are found. It has a yellow beard.
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The teeth of sharks over long are finely serrated. The fins (especially the dorsal, pectoral, and pelvics) of the sicklefin lemon shark are more falcate (sickle-shaped) than those of the otherwise very similar American lemon shark. The first dorsal fin is positioned closer to the pelvic than the pectoral fins. The second dorsal fin, nearly equal to the first in size, is located over or slightly forward of the anal fin.
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The moss is similar to small Dicranum species and form loose to dense cushions. The stems are erect, 1-2 inches high (occasionally higher) and are sparsely fibrous with rhizoids below. The leaves are lanceolate, erect-spreading, sometimes falcate, with full margins, to cut up against the blade tip, with emerging veining. The leaf cells are elongated at the leaf base and smooth, the top sheet portion extends to approximately square and smooth.
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The glabrous branchlets have a yellowish to light brown colour sometimes with a pale powdery coating that is a more orange colour at the extremities. Like most species of Acacia it has phyllodes rather than true leaves. The glabrous narrowly elliptic phyllodes are slightly asymmetric with a length of and a width of and are straight to slightly falcate with many parallel longitudinal nerves. It blooms from July to September producing yellow flowers.
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The lower jaw has three protruding lobes that fit into corresponding depressions in the upper jaw. There are around 47 upper and 50 lower tooth rows arranged in winding bands; the teeth are low and blunt with ridges on the crown. The five pairs of ventral gill slits are positioned close to the lateral margins of the head. The body is deepest in front of the two tall and falcate (sickle-shaped) dorsal fins.
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The leaves form a rosette at the end of the pseudostem and have narrow blades usually long by wide, usually curved (falcate), hairless (glabrous), and with a pointed tip. Flowers appear in July to August in the wild. The stem (peduncle) of the flower spike (inflorescence) is either held within the leaf sheaths or sometimes slightly extended from them. The flowers usually open one at a time and are purple or white.
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The upper teeth have a single narrow cusp with serrated edges, upright at the center of the jaw and becoming more oblique on the sides. The lower teeth are similar to the upper teeth, but more upright and slender. The five pairs of gill slits are fairly long. The pectoral fins are falcate (sickle-shaped) and taper to pointed tips; their leading margins measure about a fifth as long as the total length in sharks over long.
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The pectoral fin is small for a carangid, about the length of the pelvic fin and is not falcate, with 20 rays. The pelvic fin consists of one spine and five branched soft rays. The caudal fin is also highly diagnostic, being deeply forked and consisting of 17 caudal rays, 9 dorsally and 8 ventrally. The lateral line has a slight anterior arch and no scutes are present on the line, but possesses about 100 scales.
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The crown has an open spreading habit with a typical spread of . The strongly discolorous, glossy adult leaves are arranged alternately supported on a petiole that is in length. The leaf blade is darker green on upper side and paler below with slightly falcate to lanceolate shape and a length of and a width of with a base usually tapering to the petiole. The side-veins in the leaf are at an acute or wider angle and densely reticulate.
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Hecticoceratinae is a subfamily of oppeliids from the Middle and Upper Jurassic typically with strong falcoid or falcate ribbing that covers whorl sides completely. Venters are usually keeled and may be tricarinate.Treatise on Invertebrate Paleontology Part L, L276 (Ammonoidea) The Hecticocerainae, which has its origin in the Oppeliinae, give rise to the Distichoceratinae near the beginning of the Middle Jurassic Callovian, and to the Glochiceratinae early in the Upper Jurassic Oxfordian.Classification of Jurassic Ammonitina, D.T. Donovan, et al.
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The yellow bloodwood grows as an attractive gnarled tree, up to tall. It can have a multistemmed stunted habit when growing on an exposed site. The distinctive bark is a yellowish fawn colour, and flaky, rough in consistency with a somewhat tessellated pattern. Measuring up to long and wide, the adult leaves are greyish green, thick and veiny, and lanceolate (spear-shaped) or falcate (sickle-shaped), and have a prominent raised yellow midrib and taper to the end.
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The body is slim and streamlined, with a very tall, narrow, and falcate (sickle-shaped) first dorsal fin that originates over the bases of the rather small pectoral fins. The second dorsal fin is much smaller and originates over the aft third of the anal fin base. The anal fin is about half again as long as the second dorsal fin. A lengthwise groove is on the caudal peduncle at the dorsal origin of the caudal fin.
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The many-branched, glaborus shrub typically grows to a height of and has brown to grey coloured flaky bark with flattened, stout and brownish branchlets. Like most species of Acacia it has phyllodes rather than true leaves. The flat, straight to falcate phyllodes have an inaquilaterally narrowly elliptic shape with a length of and a width of and have three conspicuous main nerves. It blooms throughout the year producing long flower-spikes with white to cream coloured flowers.
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It has a small, thick and compressed rhizomes, which have many branches,James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) and gives the plant a creeping habit,Richard Lynch across the surface of the ground, while being heated by the sun. The creeping habit creates clumps. It has narrow, slender, curved, or falcate (sickle-shaped), leaves, that are glaucous, grey green, or medium green. They can grow up to between long, and between 0.2 and 0.6 cm wide.
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The leaf blade has a lanceolate to falcate shape and are in length and wide. It flowers between July and October producing axillary unbranched inflorescences but can appear to be arranged in clusters toward the end of the branch. The ovoid to obovoid shaped green to yellow mature buds are in length and wide and have creamy shaped flowers. The fruit that form after flowering have a truncate- globose to hemispherical shape with a length of and a width of .
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The appearance of Andreaea rupestris is dark in colour, varying from dark red/brown/green to black depending on its life stage. It grows in patches of dense, cushion-like tufts up to 2–3 cm high and has imbricate leaves in dry conditions. In moist conditions, the leaves may be falcate-secund (curved to one side) yet this does not always hold true. Unlike some other mosses, A. rupestris have biseriate rhizoids which aid in attaching the gametophyte to substrate.
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These flanges form exceptionally long, incurved teeth at the inner edge of the pitcher orifice. The teeth are sickle-shaped (falcate) and extend approximately 7 mm into the interior, as measured from the inner edge of the peristome to the tooth apex. The outer edge of the peristome is entire, with the recurved flanges extending for around 2 mm past the rim. The teeth of the neck may assume a dagger-like shape and measure up to 10 mm by 2 mm.
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Nephele bipartita is a moth of the family Sphingidae. It is known from lowland forest and heavy woodland from West Africa to the coast of Kenya and Tanzania and to Malawi and Mozambique. The length of the forewings is 34–38 mm. It is very similar to Nephele monostigma, but the olive dorsal spots of the abdomen are larger, the black lateral spots are not separated by brownish buff, but by the ground colour and the forewings are not falcate.
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Usually, 12 tooth rows occur on either side of both top and bottom jaws, but the number can vary from 11 to 13. The upper teeth have strongly serrated oblique cusps and smooth-edged cusplets, and the lower teeth have oblique cusps, either serrated or smooth. The hindermost of the five gill slits is above the origin of the pectoral fins, and no spiracles occur. The first dorsal fin is long, narrow, and curved (falcate) and has a short rear tip.
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Xylophanes cthulhu is a moth of the family Sphingidae. It is known from lowland rainforest in Guatemala and Costa Rica. The wingspan is 76–82 mm. It is similar to Xylophanes neoptolemus but distinguishable by the overall brighter colour and the more acutely falcate tip of the forewing, a pure black basal area to the hindwing and a golden yellow band between the first and fourth postmedian lines on the forewing underside Adults are on wing year- round in Costa Rica.
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The leaflets of H. mexicana are an inequilateral falcate shape with the lamina at the base uneven and the outside leaf margin more rounded then the inside margin. The single full leaflet is long and in width, with a leaf petiole that is long on the inside margin of the base, and sessile on the outside margin. The flowers bisexual and small, being tall and from sepal to sepal. A distinct pubescence ranging from dark brown to tan covers the flower.
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The pectoral fins are falcate and longer than the head, consisting of 19 to 21 soft rays. The lateral line is moderately arched anteriorly, and possesses 17 to 104 scales including 23 to 29 scutes posteriorly; also having bilateral paired caudal keels present. The chest is completely scaled, which easily distinguishes it from the similar crevalle jack, Caranx hippos. The snout is moderately pointed, with both the jaws containing narrow bands of villiform teeth, with the bands becoming wider anteriorly.
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The dorsal fin is in two parts, the first consisting of eight spines and the second of one spine followed by 19 to 22 soft rays. The anal fin consists of two anteriorly detached spines followed by one spine and 16 to 18 soft rays. The lobes of the soft dorsal and anal fins are elongated, and the pectoral fin is falcate and longer than the length of the head. The lateral line has a pronounced and moderately long anterior arch.
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Napaea is a genus in the butterfly family Riodinidae present only in the Neotropical realm. Napaea contains strong butterflies with a robust body. The margin of the forewings is not projecting so far, the apex not so very falcate (sickle shaped), the costal of the forewing is not connected with the subcostal. They have a distinctive pattern of metallic blue or white or yellow comma-shaped marks, chevrons or punctiform spots, although in some species the markings are greatly reduced.
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Antennae whitish, basal 2/5 clothed with hairs, basal joint with strong tuft. Forewings with apex falcate; yellow; a subcostal streak to before middle, a discal streak from before middle to 2/3, a streak along fold, and several short streaks between veins towards costa posteriorly and termen silvery-white, blackish-edged. Hindwings dark grey.Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf Keys and description Young larvae eat out the ripe fruit of a thyme (Thymus species) floret.
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Wet-season form. Male and female: Forewing: costa strongly arched, apex acute; termen immediately below apex in male angulate, in female falcate (sickle shaped). Upperside resembles M. ismene, but ground colour on the whole somewhat warmer brown, a very broad patch of ochraceous yellow, above and beyond the subapical black spots, larger in the female than in the male. Underside closely irrorated (sprinkled) with dark brown striae (lines); the ocelli subequal, very much smaller and less clearly defined than in M. ismene.
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It is similar in form to Iris aphylla, but has various differences including, stem branching, spathes, the falls, styles crests and seeds.British Iris Society (1997) It has a thick, compact rhizome, that has several branching buds. Like other bearded irises, it grows partially buried, horizontally across the ground. It has green, falcate (sickle-shaped) leaves, that are very heavily ribbed, so much so that they appear corrugated or pleated. They can grow up to between long, and between 2.0 and 2.4 cm wide.
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Bulletin of the British Museum (Natural History) (Entomology) 4 (9): 490 The shape of the forewings is unusual, the terminal half of the costa is strongly bowed inwards and the apex is not strongly falcate (sickle shaped) but the outer margin below it is deeply concave and then distinctly arched. There is an orange shadow on the forewings extending from the apex to the outer one third of the inner margin. There are also two white patches ringed by brown lines.
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E. Himalaya, W. & S. China, Sumatra, Java, Sulawesi) group of Watson (1967) where the facies is similar to that of yellow and red forms of species in the insignis Butler group of which three species are described immediately following. However, the red colour is brighter, and the forewing postmedial is simply pale, not edged darker red interiorly. The forewings are generally more falcate than in the insignis group. The species of the extensa group are most reliably distinguished by the male genitalia.
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James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) The leaves all die in the summer after the flowers have bloomed, then re-appear next season. The foliage is very similar to Iris iberica (another Oncocyclus section iris), but it is less falcate, (or sickle-shaped). It has a slender stem or peduncle, that can grow up to between tall. The stem has spathes (leaves of the flower bud), that are long and are green but flushed with purple at the ends.
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The short, curved mouth bears prominent furrows at the corners. There are 28–30 upper and 46–52 lower tooth rows, which are not visible when the mouth is closed; the upper teeth are broad and angled with large serrations on the trailing edge only, whereas the lower teeth are thin and upright with smooth edges. There are five pairs of fairly short gill slits. All of the fins, particularly the narrow pectoral fins, are falcate (sickle-shaped) to some degree.
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Cyrtanthus falcatus, the falcate fire lily, is a species of flowering plant in the amaryllis family Amaryllidaceae from the Natal region of South Africa. A bulbous perennial growing to , it has glossy, strap-shaped leaves and erect burgundy-coloured stems. These bear umbels of 8-10 narrowly-flared, pendulous tubular flowers in shades of red, green and cream in spring and summer. The umbels are bent over in a curious crook or sickle shape (hence The Latin specific epithet falcatus, “shaped like a sickle”).
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The longfin yellowtail (Seriola rivoliana), also known as the almaco or silvercoat jack, deep-water, falcate, European or highfin amberjack, rock salmon, longfin or yellow kingfish, is a game fish of the family Carangidae; they are in the same family as yellowtail and amberjack. They are carnivorous and feed, both day and night, on other, smaller fish such as baitfish and small squid. The flesh is thick and dense, like tuna, and easily may be passed off for white albacore if prepared as sushi.
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The dorsal fin is in two parts, the first consisting of eight spines and the second of one spine followed by 19 to 21 soft rays. The anal fin consists of two anteriorly detached spines followed by one spine and 16 or 17 soft rays. The pelvic fins contain one spine and five soft rays, while the pectoral fins contain 20 or 21 soft rays. The caudal fin is strongly forked, and the pectoral fins are falcate, being longer than the length of the head.
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Both of the jaws contain anteriorly widening bands of small villiform teeth, with larger individuals also having a number of conical outer teeth. There are two separate dorsal fins, the first consisting of 8 spines and the second of 1 spine and 18 to 20 soft rays. The anal fin comprises two detached anterior spines, followed by 1 spine and 14 to 17 soft rays. The lobes of both the soft anal and dorsal fin are falcate, with juveniles having the anteriormost rays extended into filaments.
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These are lost in adults, with the lobes becoming shorter than the head. The pectoral fins are long and falcate, not quite reaching the intersection of the arched and straight sections of the lateral line. The lateral line is moderately curved anteriorly, with this section up to twice as long as the straight section, which has between 20 and 37 weak scutes present. The breast of the longnose trevally is scaleless, extending up to behind the pelvic fin origin and laterally to the pectoral fin base.
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The classification of these copepods has been established on the basis of the structure of the mouth. In poecilostomatoids the mouth is represented by a transverse slit, partially covered by the overhanging labrum which resembles an upper lip. Although there is variability in the form of the mandible among poecilostomatoids, it can be generalized as being falcate (sickle-shaped). The antennules are frequently reduced in size and the antennae modified to terminate in small hooks or claws that are used in attachment to host organisms.
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Both jaws contain narrow bands of villiform teeth, with these bands becoming wider anteriorly. The dorsal fin is in two parts, the first containing 7 spines and the second of 1 spine followed by 25 to 28 soft rays. The anal fin is similar to the second dorsal fin, consisting of two anteriorly detached spines followed by 1 spine and 21 to 24 soft rays. The lobes of the dorsal and anal fins are slightly pronounced, and the pectoral fin is falcate, being longer than the head.
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The shrub or tree typically grows to a height of or as high as . It has glabrous angled branchlets with pendulous phyllodes that have a linear-elliptic to falcate, occasionally oblanceolate shape and are usually narrowed at both ends. The phyllodes are around in length and have a width of and have prominent midribs. It blooms between August and November producing simple inflorescences that occur in groups of 6 to 16 on the raceme with the spherical flower-heads contain 17 to 20 creamy white coloured flowers.
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Differ only from the wet- season brood in the slightly more falcate apex to forewing, and in the purer white ground colour on the upperside. Also the terminal margin on the hindwing in the male has the black markings all but obsolete, while in the female the postdiscal and terminal black markings on the same are smaller than in the wet-season form. Underside: the mottlings of brown strigae and minute spots are more numerous and dense. Race australis, Butler (Southern India and Sri Lanka).
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The pectoral fin is strongly falcate (scythe shaped), and extends beyond the origin of the second dorsal fin. The lateral line is strongly arched over a short length anteriorly, with the intersection of the curved and straight sections vertically below the fourth or fifth spine of the first dorsal fin. The curved section of the lateral line has 21 to 29 scales, while the straight section has 51 to 59 very large scutes. The breast is devoid of scales in a triangular patch to about one-third the distance to the pectoral fin base.
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The types of fruit produced by different species of Indigofera can also be divided into broad categories that again show great variation. The three basic types of fruit categories can be separated by their curvature including straight, slightly curved, and falcate (sickle-shaped). In addition, several of the species including Indigofera microcarpa, Indigofera suffruticosa, and Indigofera enneaphylla have shown delayed dehiscence (maturing) of fruits This variation could again allow for artificial selection of the most abundant and nutritious fruit types and shapes. Another way to categorize Indigofera is by its pericarp thickness.
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The dorsal line of the abdomen is bordered by a pair of narrow dark brown lines highlighted on the posterior margins of the tergites by small spots. The forewings are relatively short and the outer margin is straight and the apex slightly falcate. The forewing upperside ground colour is brown and the discal spot small and black, immediately beyond which is a variably developed black cloud. The first to third postmedian lines are narrow (the first is sometimes heavier than the other two and straight along its entire length).
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The wingspan is 82–84 mm. It is similar to Daphnis species, but easily distinguished by the falcate apex of the forewing, which also lacks a large oval dark green basal patch on the upperside. It is also similar to Eurypteryx obtruncata, but the forewing outer margin is less curved and the hindwing apex is evenly rounded. There is an incomplete line on the forewing upperside running from the costa towards the middle of the outer margin, dividing the light brown apical area from the deep brown discal area.
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They are linear-lanceolate in shape, distally gradually attenuate, i.e. tapering to a point at the end. Their outline is falcate, or sickle-like, to more or less straight and flat. The texture is somewhat leathery, but generally they are quite soft and flexible. The midvein is 0.2 to 0.5 mm wide on the abaxial surface, or underside, showing two broad and grey stomatal bands that are 0.8 to 2.1 mm wide with 13 to 24 rows of stomata, though the individual stomata are not readily visible to the naked eye.
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The tree or shrub typically grows to a height of . It has fissured brown to grey- brown bark with resinous, scurfy, rusty-brown new shoots that occasionally have a dense covering of silver hairs with glabrous to sparsely haired, terete, light brown to reddish coloured branchlets. Like many species of Acacia it has phyllodes rather than true leaves. It has sickle shaped, glabrous to sometimes sericeous phyllodes falcate with a length of and a width of and have three to five prominent longitudinal veins surrounded by minor veins that are almost touching each other.
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Iris purpureobractea is a plant species in the genus Iris, it is also in the subgenus Iris. It is a rhizomatous perennial, from the cliffs and forest glades on the mountains of Turkey. It has straight or falcate shaped leaves, stem with several branches, the stem has purple spathes (leaves of the flower bud), it has up to 8 fragrant flowers, in various colours between yellow (white, pale yellow, pale brown and tan) or blue (purple, lavender, pale blue to ice blue). It is cultivated as an ornamental plant in temperate regions.
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Iris suaveolens is similar in form to Iris attica,Basak Gardner & Chris Gardner or Iris reichenbachii, Iris lutescens, and Iris pumila. It has thickRichard Lynch but small (around 1 – 2 cm long) rhizomes,Umberto Quattrocchi that are thick, but small, It has evergreen, falcate (or sickle shaped), or curved leaves. The short, blue green, or greyish, leaves can grow up to between long,Thomas Gaskell Tutin (Editor) and between 0.4 and 1 cm wide. One form of the species, known as 'rubromarginata', has red-violet, or reddish purple edging on the leaves.
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Differs from bulis in the shape of the hindwing, which has the termen very strongly angulate in the middle in both sexes. In both male and female also the apex of the fore and tornal angle of the hindwing are highly acuminate, in the forewing the apex is, in most specimens, falcate (sickle shaped). Male upperside: differs from the upperside of the typical form in the greater extent and paler colour of the orange-red areas on both forewings and hindwings. On the forewing the discocellulars are marked by a black tooth as in var.
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John Greenlee It has 2–3 cauline (on the stem), spathes (leaves of the flower bud), which are green, falcate (sickle-shaped) slightly inflated, unequal (outer leaves are shorter than the inner leaves) and long. The spathes bear 1 or 2 flowers, in Spring, or early Summer,James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) between April to May.John Kirkegaard They only flower for a short time. The fragrant, flowers are in diameter, and come in shades of blue, from lavender, to lilac, to pale blue, and purple.
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The first one or two leaves consist only of sheaths; the remaining 5–8(–11) leaves have curved (falcate) blades mainly long by wide (although lengths and widths outside this range are also found). The sheaths sometimes have small 'ears' (auriculate) at the junction of the blade and sheath, where there is also a small ligule, extending to about . The stem (peduncle) of the flower spike (inflorescence) is held within the leaves. The bracts which subtend the flowers are more or less the same length as the calyx.
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The anal fin consists of 2 anteriorly detached spines followed by 1 spine and 19 to 21 soft rays. The pectoral fins become more falcate with age, having 21 to 23 rays, and are slightly longer than the head. The lateral line has a pronounced but short anterior arch, with the curved section intersecting the straight section below the spine of the second dorsal fin. The straight section contains 0 to 7 scales followed by 46 to 56 very strong scutes, with bilateral keels present on the caudal peduncle.
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Each follicle contains one or two fertile seeds, between which lies a woody dark brown separator of similar shape to the seeds. Measuring in length, the seed is egg- to wedge- shaped (obovate to cuneate) and composed of a dark brown wide membranous "wing" and wedge- or sickle-shaped (cuneate–falcate) seed proper which measures long by wide. The seed surface can be smooth or covered in tiny ridges, and often glistens. The resulting seedling first grows two obovate cotyledon leaves, which may remain for several months as several more leaves appear.
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They are quite flattened and lack a ridge along the valve line. When young, the follicles are greenish in colour and slightly sticky, and covered in fine white hairs, fading to tan or grey with age. They open with fire, releasing a winged wedge-shaped (cuneate) seed 2–2.5 cm (0.8–1 in) long. The mottled dark grey seed body is falcate (crescent-shaped) and measures 1.2–1.8 cm (0.5–0.7 in) long and 0.2–0.25 cm (0.1 in) wide, with a flattened dark brown wing 1.1–1.7 cm (0.4–0.5 in) wide.
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The caudal fin is strongly forked, and the pectoral fins are falcate, being longer than the length of the head. The lateral line has a pronounced and moderately long anterior arch, with the curved section intersecting the straight section below the lobe of the second dorsal fin. The curved section of the lateral line contains 58-64 scales, while the straight section contains none to four scales and 26 to 38 very strong scutes. The chest is devoid of scales with the exception of a small patch of scales in front of the pelvic fins.
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The harsh environment supports only specialized plants and animals capable of managing the cold, dry climate. There are very limited stands of Asian spruce (Picea schrenkiana) and juniper shrubs on low, north-facing slopes where they can capture moisture or snow melt. Along riverbeds there are a few plants such as a salt-tolerant form of tamarisk (Myricaria), a woody plant the exists mostly underground. Some slopes below 5,300 meters support a high cold steppe community that features sedges (Carex), purple feathergrass (Stipa purpurea), falcate crazyweed (locoweed) (Oxytropis falcata).
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It is similar to Iris susiana, apart from its leaf and flower form.William Robinson It is classed as an Mezo-xerophyte, (meaning they like intermediate dry conditions.R. W. McColl ) or xeric species (similar to Seseli grandivittatum, Thymus tiflisiensis, Scorzonera eriosperma and Tulipa eichleri).George Nakhutsrishvili It has a slender,Richard Lynch and compact rhizome,James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) British Iris Society (1997) that is not stoloniferous, but up to 1.5 cm in diameter. They have 4–6 leaves, that are glaucous, grey-green,Christopher Brickell (Editor- in-chief) and falcate, (sickle shaped) or curved.
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Melon-headed whales have a robust, dolphin-like body, a tapering, conical head (head shape triangular when viewed from above) with no discernible beak and a relatively tall, falcate (sickle-shaped) dorsal fin located near the middle of the back. Body coloration is charcoal-gray to dark-gray body. A dark face ‘mask’ extends from around the eye to the front of the melon and larger animals have whitish lips. Melon-headed whales have a dark colored dorsal cape that starts narrowly at the front of the head and dips down at a steep angle below the dorsal fin.
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The abdomen has all segments marked with black, the black lateral spots are almost meeting on the dorsum, where they are separated by a small dark olive spot, and separated longitudinally by almost uninterrupted pale buffish brown transverse stripes at the posterior margin of each tergite. The forewings are very broad and rounded and the apex is acute and very slightly falcate, mottled with blackish and with a faint diffuse black bar running from the middle of the costa to the tornus. There is a conspicuous irregular, interrupted submarginal pale grey line, edged proximally with black. The hindwings are uniformly dark brown.
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No fleshy keel exists along the sides of the caudal peduncle. The caudal fin is about one-fifth of the total length of the shark, the dorsal lobe is elongated and has a notch in the lower margin near the tip and the ventral lobe is smaller, markedly falcate, and has a more rounded tip. The body colour is brownish or silvery grey on the dorsal surface and pale grey on the ventral surface, with an inconspicuous pale stripe running along the flank. A large, triangular black spot is on the second dorsal fin which covers at least half of the fin.
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It is an evergreen coniferous shrub or small tree growing to 6 m (rarely 10 m) tall, with a trunk up to 38 cm diameter. The bark is thin, scaly purple-brown, and the branches are irregularly orientated. The shoots are green at first, becoming brown after three or four years. The leaves are thin, flat, slightly falcate (sickle-shaped), 1–2.9 cm long and 1–2 mm broad, with a bluntly acute apex; they are arranged spirally on the shoots but twisted at the base to appear in two horizontal ranks on all except for erect lead shoots.
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Calyx dark-vivid red, narrow infundibular, tube 16–22 mm long, 3–5 mm basally expanding to 6–8 mm wide at throat, lobes deltoid-ovate, subulate-acuminate, 8–12 mm long; persistent in fruit. Standard petal brilliant red, paler toward spotted center, blade oblong-lanceolate, 25–33 mm long x 14–17 mm wide, claw 21–24 mm long. Wing petals shorter than keel, red, flaring apically, blade elliptic-oblong 25–33 mm long x 14–17 mm wide, claw 21–24 mm long. Keel petals red, blade elliptic- oblong, weakly falcate, 17–23 mm long x 2.5–5 mm wide.
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Most modern cetaceans have a falcate process which juts out prominently halfway between the hypoglossal canal and the ear; Ambulocetus has a similar process continuous of the pterygoid, but it runs alongside and behind the hypoglossal canal. Like many other archaeocetes, the pterygoids, sphenoids, and palatines form a wall lining the bottom of the nasal canal, which causes the palate to extend all the way to the ear. Like other cetaceans, Ambulocetus lacks the postglenoid foramen. The ectotympanic bone which supports the eardrum is similar to that of Pakicetus, about as long as wide, whereas later archaeoecetes have more elongate ectotympanics.
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Operculum with type A genital appendage of H. suecicus Holmipterus was a large eurypterid, with some paratypes indicating a size of even 1.5 m (4.9 ft). It had characteristics that allow it to differentiate itself from all the eurypterids. The chelicerae (frontal appendages) had four joints, with a long, narrow and falcate (with a curvature similar to that of the sickle) chelae (claws) of 12.4 mm (0.49 in) long. The hand was about as broad as long, with a socket for the articulation of the condyle (round prominence at the end of a bone) of the 4th joint.
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The axis is convex, and less than ½× as wide as each of the so- called pleurae to its sides. Segments pointed sideways with a rounded front (a shape called falcate). The tailshield (or pygidium) is about ½× as wide as the cephalon, almost twice as wide as long, excluding the two flat, shark tooth shaped, widely spaced spines. The axis in the pygidium is 1¼× longer than wide, with almost parallel sides, almost reaching the rear margin, with 3 or 4 axial rings; 3 sets of interpleural grooves and pleural furrows ending at distance of the margin.
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This light grey patch found on the throat of pilot whales forms the shape of an anchor. Some individuals have other distinct markings such as a light coloured area behind dorsal fin, known as a saddle patch, as well as an upwards sweeping stripe just behind the eye. The dorsal fin is thick and falcate in nature, and is located about a third of the way down the length of the animal. The common name of this species is a reference to the pilot whale's long, sickle-shaped pectoral flippers that are 18 to 27 percent of its total body length.
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Cuvier's beaked whale has a short beak in comparison with other species in its family, with a slightly bulbous melon, which is white or creamy in color, and a white strip runs back to the dorsal fin about two-thirds of the way along the back. The rest of the body color varies by individual: some are dark grey; others are a reddish brown. Individuals commonly have white scars and patches caused by cookiecutter sharks. The dorsal fin varies in shape from triangular to highly falcate, whilst the fluke is about one-quarter the body length.
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Iris acutiloba is a species in the genus Iris, it is also in the subgenus of Iris and section Oncocyclus. It is a rhizomatous perennial, from the mountains of the Caucasus and found in Turkey, Armenia, Azerbaijan, Turkmenistan, Dagestan in the North Caucasus, and Iran. It is a dwarf species, with narrow, falcate or curved leaves, it has one flower in spring or early summer, that comes in shades from cream, creamy white, whitish, pale brown, light grey, to pale violet. It is heavily veined or streaked and pointed, with 2 dark spots and brown, purple, dark purple, or black short beard.
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The sicklefin lemon shark (Negaprion acutidens) or sharptooth lemon shark, is a species of requiem shark belonging to the family Carcharhinidae, widely distributed in the tropical waters of the Indo-Pacific. It is closely related to the better-known lemon shark (N. brevirostris) of the Americas; the two species are almost identical in appearance, both being stout-bodied sharks with broad heads, two dorsal fins of nearly equal size, and a plain yellow- tinged coloration. As its common name suggests, the sicklefin lemon shark differs from its American counterpart in having more falcate (sickle-shaped) fins.
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Anthocharis scolymus, the yellow tip, is a butterfly in the subfamily Pierinae whose range is Eastern Asia (East China, Korea, Ussuri) where it is commonplace; occasionally it is found in Japan. The apex of the forewing is produced and falcate (sickle shaped); white above and below, with dark apical marking and black median spot on the forewing above, and a black spot at apex of hindwing; the male moreover, has a moderately large orange spot in the apical area of the forewing, occurring occasionally also in the female (= ab. virgo form. nov. The butterfly appears in one brood and is common in swampy places.
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The trees of D. turbinatus are lofty, growing 30-45m tall. The bark is gray or dark brown, and is shallowly longitudinally fissured and flaky. Branchlets are glabrescent. The leaf buds are falcate, with both buds and young twigs densely gray and puberulous. The stipules are 2–6 cm, densely, shortly dark grayish or dark yellow puberulous; the petiole is 2–3 cm, densely gray puberulous or glabrescent; the leaf blade is ovate-oblong, 20-30 × 8–13 cm, leathery, glabrous or sparsely stellate pubescent, lateral veins are in 15-20 pairs conspicuously raised abaxially, base rounded or somewhat cordate, margin entire or sometimes sinuate, apex acuminate or acute.
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Under the rhizomes are fleshy-like roots. The branches are brown. The creeping habit can create large masses of plants over time.Richard Lynch Nick Romanowski Holly Kerr Forsyth (Editor) It has 6–8 basal leaves, which are divided onto 2–3 proximal (close to centre) leaves and 4–5 distal (away from centre) leaves. The proximal leaves are falcate (sickle-shaped), light brown with a darker brown central mid-rib, and the distal leaves are ensiform (sword-like),John Darby (1841) green or yellowish green, with a few visible veins. They can grow up to between long and 1-2.5 cm wide. They elongate after flowering, growing up to long.
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It is classed as an mezo-xerophyte (meaning it likes medium to dry habitats), and has stoloniferous rhizomes which are about 3 cm long. Underneath the rhizomes, it has very long secondary roots. It has large, ribbon-like, and falcate (sickle- shaped), leaves, that can grow up to between long, It has a slender stem or peduncle, that starts to grow in March, up to between tall. The stem holds a terminal (top of stem) flower, the plant normally has 2–3 stems, each with flower buds, blooming in Spring,James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) between late March, or April and May, or June.
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In young adults, the lobe of the second dorsal fin is often falcate, but usually shorter than the head length. The anal fin has two anteriorly detached spines followed by a single spine attached to 21 to 26 soft rays, while the pelvic fin has one spine attached to 20 or 21 soft rays. The lateral line has a gentle anterior arch, with the junction of the curved and straight sections vertically below the 15th to 20th soft rays of the second dorsal fin. The curved section of the lateral line contains 82 to 90 scales, while the straight section has 12 to 17 scales and 26 to 31 scutes.
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Like other members of Alepes, it has an adipose eyelid which is well developed only on the posterior section of the eye. The dorsal fin is split into two sections like in all of the Carangidae, the first with 7 or 8 spines and the second with one spine followed by 23 to 26 soft rays. The anal fin consists of two detached spines followed by a single spine and 18 to 21 soft rays, with both the anal and dorsal fins have a low profile. The pectoral fin is falcate and extends to beyond the junction of the curved and straight sections of the lateral line.
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The pectoral fins are falcate, and consist of 19 to 21 soft rays, while the caudal fin is strongly forked. The species lateral line is moderately arched anteriorly, with 58 to 79 scales in this section, while the straight section contains none to seven scales and 34 to 43 strong scutes. The breast is devoid of scales with the exception of a small patch of scales in front of the pelvic fins. The species has well-developed adipose eyelids, while its dentition consists of an outer row of widely spaced canine teeth and an inner band of villiform teeth in the upper jaw, with a row of widely spaced conical teeth on the lower jaw.
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Description: Flowers nodding, resupinate. Pedicellate ovary terete, to 4 cm long. Sepals and petal dark wine red, spotted white toward the base, membranous; sepals lanceolate, acuminate, to 1.6 cm wide and 7 cm long; petals narrowly ovate, acuminate, to 1.4 cm wide and 6 cm long. Labellum 3-lobed, to 1.6 cm wide and 3 cm long, with a central plate-like callus between the lateral lobes, this callus with two-teeth-like backward and forward projections, the forward projection lightly bifid, a series of irregular, fleshy papillae between the plate-like callus and the base; lateral lobes, falcate, acute, the lateral margins thickened; midlobe trullate, the margins ciliate in the apical half, the upper and lower surface and the margins pailose, the apex rounded, slightly concave.
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Underside paler, densely covered with transverse dark brown striae; a discal curved dark brown narrow band on forewing; a post-discal similar oblique band, followed by a series of ocelli: four on the forewing, that in interspace 8 the largest; six on the hindwing, the apical and subtornal the largest. Dry-season form: Forewing: apex obtuse and more or less falcate; termen posterior to falcation straight or sinuous. Upperside: ground colour similar to that in the wet-season form, the markings, especially the ferruginous lunules inwardly bordering the black sub-apical spots on forewing, larger, more extended below and above the black costa. Hindwing: the ocellus in interspace 2 absent, posteriorly replaced by three or four minute white subterminal spots.
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Male and female Differs from Aglais caschmirensis with the forewing termen convex and not falcate and not produced between veins 5 and 6. Upperside colours and markings similar to and disposed as in Aglais rizana but the lower blackish discal spot or patch in forewing much broader, extended to the median vein joining the transverse band across the cell, joined also by a triangular patch at base of interspace 3 to the short band beyond the discocellulars; two small rounded spots in interspaces 2 and 3 respectively placed on a yellow band, as in N. rizana. Hindwing with the sub-terminal series of conical black spots larger, each centered with a large spot of blue. Underside much paler than in either Aglais caschmirensis not so thickly studded with dark transverse short striae.
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Cyclidia orciferaria is a moth in the family Drepanidae. It was described by Francis Walker in 1860. It is found in China (Jiangsu, Zhejiang, Jiangxi, Hunan, Fujian, Guangdong, Hainan, Guangxi, Sichuan, Yunnan), Thailand,BOLD Systems Vietnam, Indonesia and Myanmar. This species is different from other congeners in the following external characters: the apex of the forewing is falcate (sickle shaped); the wing colour is blackish brown; two bands covered with greyish-blue scales are present on the forewing, and the inner band is narrower and less distinct than the outer band; the discal spot of the forewing is yellowish brown, oblong, with a blackish brown narrow line medially; greyish-blue scales are covered on the submarginal lines of both wings, and often absent on the middle part of the hindwing.
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It is a medium-sized evergreen coniferous tree growing to 20 m tall, similar to Taxus baccata and sometimes treated as a subspecies of it. The shoots are green at first, becoming brown after three or four years. The leaves are thin, flat, slightly falcate (sickle-shaped), 1.5–2.7 cm long and 2 mm broad, with a softly mucronate apex; they are arranged spirally on the shoots but twisted at the base to appear in two horizontal ranks on all except for erect lead shoots. It is dioecious, with the male and female cones on separate plants; the seed cone is highly modified, berry-like, with a single scale developing into a soft, juicy red aril 1 cm diameter, containing a single dark brown seed 7 mm long.
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The dorsal fin is in two sections, the first consisting of eight spines and the second of one spine and 28 to 31 soft rays, with the lobe of the second dorsal fin being slightly falcate in younger individuals, but is always shorter than the head length. The anal fin has two detached spines followed by one spine attached to 24 to 26 soft rays, while the pelvic fin has one spine attached to 21 or 22 soft rays. The lateral line has a very slight anterior arch, with the intersection of the straight and curved sections between the 15th and 19th soft rays of the dorsal fin. The curved section contains 96 to 106 scales, while the straight section contains 20 to 30 scales and 21 to 28 scutes.
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A wide central white streak from the base, slightly nearer to the costal than to the dorsal margin, is attenuated beyond the middle, and almost reaches the apical margin below the falcate apex. A more slender line of white on the extreme costal margin from near the base is deflexed about the middle of the costal margin, and runs very obliquely outwards, ending slightly beyond and above the end of the central streak. A third white line, starting at the basal third below the fold, crosses the fold beyond the middle, and is somewhat dilated towards its apex, opposite to the middle of the apical margin and on a level with the apex of the upper line. This third line gives off a short oblique branch beneath, which commences on and follows the fold to near the anal angle.
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A blue whale lifting its tail flukes Adult blue whale Blue whales have long, slender mottled grayish-blue bodies, although they appear blue underwater. The mottling pattern is highly variable and the unique pigmentation pattern along the back in the region of the dorsal fin can be used to identify known individuals. Additional distinguishing features of the blue whale include a broad, flat head, which appears U-shaped from above; 270–395 entirely black baleen plates on each side of their upper jaw; 60–88 expandable throat pleats; long, slender flippers; a small (up to ) falcate dorsal fin positioned far back toward the tail; a thick tail stock; and a massive, slender fluke. Their pale underside can accumulate a yellowish diatom coat, which historically earned them the nickname sulphur bottom. The blue whale’s two blowholes (the analogue of human nostrils) create a tall, columnar spray, which can be seen 30–40 ft (9–12 m) above the water’s surface.
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This species is distinguished by the following characters: body oval, deep (its depth less than 2.5 times in total length) and strongly compressed; eye surrounded by a small area of adipose tissue; snout short and blunt, lower jaw projecting somewhat beyond upper; mouth small, tip of maxillary not reaching below eye margin; teeth in jaws very small, in one row while those in the upper jaw flattened and with 3 tiny cusps; dorsal and anal fin bases very long (about equal in length), the anterior fin rays elevated, but fins not falcate, and both fins preceded by 3 short, weak, spines; caudal fin deeply forked; pectoral fins long (longer than head) and pointed; pelvic fins absent; distinct series of 17 to 25 pores along anterior half of body under the dorsal fin; lateral line high, following dorsal profile; scales small, present also on cheeks; caudal vertebrae 16 to 18; body color pale blue above, silvery below (fading after death), no spots.Haedrich, R.L., 2003. Stromateidae. Butterfishes (harvestfishes). p. 1879-1884. In K.E. Carpenter (ed.) FAO species identification guide for fishery purposes.
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