90 Sentences With "tomentum" | Random Sentence Generator

The nuts are free from the cupule and have silvery tomentum.

Tomentum in anatomy is a short, soft pubescence or a covering of fine, soft hairs.

Immediately above the basal tomentum the stem surface is cream-colored with few striations. The basal tomentum is made of stiff, coarse white hairs over the lower 6–50 mm. The flesh of the stem is solid (i.e., not hollow) white to buff-tan to light yellow, and turns slightly blue with exposure.

In species with a distinct tomentum on the stipe, there is often a dark zone just below the tomentum of the cap. These zones are absent from some species with a pale stipe without a tomentum. However, when present they continue into the context and frequently there is also another zone stretching more or less horizontally across the context. Most basidiospores of Amauroderma mushrooms have an inner ornamented wall on which there is a hyaline (translucent) epicutis, which is very thin and difficult to see in ordinary microscopic preparations.

The larvae feed on Pritchardia eriophora. The naked larvae were found feeding amongst the abundant yellowish cottony tomentum on undersides of leaves.

It is bordered by a highly bent and wavy (effuso-reflex) edge on all species except A. laevigatum, which has a churlish surface (a tomentum) and is usually dirty-brown coloured. In some species, the tomentum stands clearly above and forms a kind of roof above the fruit body; if it completely surrounds this roof, there might appear cuplike shapes.

The exoperidium of Ollum species, in comparison, has a thin tomentum of fine hairs; fruit bodies are funnel-shaped and have either a constricted base or a distinct stipe.

Comarostaphylis arbutoides is a species of shrub in the heath family. Its range extends from central Mexico south to Guatemala, Honduras, Nicaragua, Costa Rica, and western Panama. It is found in oak and pine forests in mountainous locations, and on the summits of Central American volcanoes, at elevations from . There are two subspecies: arbutoides, distinguished by the presence of a rust-colored tomentum on the leaf underside, and costaricensis which lacks the tomentum.

All parts of the mushroom stain dark blue if bruised or injured. The shape of the cap of B. rubroflammeus is convex to broadly convex, and reaches a diameter of . The margin of the cap extends slightly beyond the tubes. The cap surface is dry and initially appears appressed-fibrillose (with fibrils pressed down flat against the surface) or has a matted grayish tomentum, but later the hairs slough off and the matted tomentum is present only along the cap margin.

A form that grows as a standing tree exists on Molokai. Ōhai grows as a prostrate shrub with semi-glaucous leaves devoid of tomentum on the southernmost tip of the island of Hawaii, Ka Lae.

The trunks are rough and solitary natured, and reach over 10 m at 20 cm wide, usually covered in old leaf bases. The sheath is tubular, splitting adaxially, striate, and covered in white and brown tomentum. The petiole is short, deeply channeled, flattened below, with armed margins and similar tomentum; the rachis is slightly arched, leaflets regular or grouped, in one or several planes with one fold. The undersides are glaucous, the apex is irregularly bifid, the midrib is prominent and the veinlets are evident.

Sometimes it is shrubby. When older, it has irregular and tortuous branches. The branches are covered with a creamy white, long lasting tomentum. The buds are small, globular with pointed apex, reddish and white ciliated edge.

Aphrodisium griffithi can reach a body length of about and a body width of about . Head, prothorax, antennae and legs are reddish brown. Elytra are violaceous black, with dark brown tomentum and show two transversal fulvous bands.

Initially spherical, the fruit bodies are later shallowly saucer- or cup-shaped with rolled-in rims, and measure in diameter. The inner surface of the cup is deep red (fading to orange when dry) and smooth, while the outer surface is whitish and covered with a dense matted layer of tiny hairs (a tomentum). The stipe, when present, is stout and up to long (if deeply buried) by thick, and whitish, with a tomentum. Color variants of the fungus exist that have reduced or absent pigmentation; these forms may be orange, yellow, or even white (as in the variety albida).

Buddleja pichinchensis is a dioecious shrub or small tree 3 – 6 m tall in the wild, with a blackish fissured bark, becoming increasingly gnarled with age. The young branches are terete and covered with a thick tomentum, bearing sessile or subsessile lanceolate coriaceous or subcoriaceous leaves, glabrescent above, with dense felt-like tomentum below. The faintly scented golden yellow inflorescences are 3 – 12 cm long, with 1 - 2 orders of branches, usually with 3 - 6 pairs of pendent pedunculate heads 1.2 - 2 cm in diameter, each head with 12 - 18 flowers, the corollas 3 - 5 mm long. Pollination is possibly by hummingbirds.

The larvae feed on Pritchardia eriophora. The larvae were found feeding in the abundant fulvous cottony tomentum of the host plant, with which the spathe and other parts of inflorescence is clothed. The moths are about the colour of this cottony substance.

They are intricately downy with brown tomentum adaxially, and covered in somewhat long and straight, slightly stiff but weak, hairs abaxially. The petiole is about 15 cm long, and only covered sparsely in brownish, arachnoid hairs, which tend to be shed over time.

A revision of the North American species of Chlorociboria (Sclerotiniaceae). Mycologia 49(6): 854–863. that not only are the spore sizes different, but C. aeruginascens have smooth tomentum hyphae, in contrast with the roughened hyphae of C. aeruginosum. C. aeruginascens is inedible.

The cap is pale to orange-yellow with grayish brownish or reddish tomentum. The tubes are yellow and become blue when bruised. The stipe is grandular dotted and the color is similar to the cap. The cap is scaly and has fibrillose.

The petioles are covered in brown tomentum and armed with sharp spines. The female cones are open, with sporophylls 28–32 cm long. Orange tomentose covering cone, with serrations along margins of the lamina. The sarcotesta is orange and glaucous, the sclerotesta ovoid and flattened.

Mountain akeake is a small, bushy shrub or tree that grows up to 6 metres tall and 3 metres wide. It has thin, papery bark and angular branchlets covered in white tomentum. Leaves are oblong-lanceolate in shape. They are dark green in colour with a downy, white underside.

The young expanding leaves are whitish or pinkish with very soft tomentum. The leaf shape is very variable, divided into 3-7 pairs of deep or shallow lobes, which are usually divided into a few sublobes. The lobes are usually blunt, rarely sharp. The apex is usually wide and round.

The bracteoles are ovate, lanceolate or linear. The flowers are arranged in whorls called verticillasters which encircle the stems. The stems are usually square in section with rounded corners, although tomentum on the stems can make them appear circular. The colour of the flowers varies from yellow to pink, purple and white.

As with many other densely tomentose plants, the tomentum on the leaves is used by some species of bees (e.g. Anthidium manicatum and Anthidium oblongatum in Megachilidae) for nest-building. Hybrids are known with Jacobaea erucifolia and Jacobaea vulgaris; the hybrid with J. vulgaris is fertile, producing a wide range of intermediate progeny.

Many cultivars have been selected for particularly dense silvery tomentum, such as 'Cirrus', 'New Look', 'Ramparts', 'Silverdust', 'Silver Filigree', and 'White Diamond'. It has been recommended in North America for its fire resistance resistance to browsing by deer, and its salt tolerance. The cultivar 'Silver Dust' has gained the Royal Horticultural Society's Award of Garden Merit.

The former species sunk by Leeuwenberg, as listed in the preceding section, have, with the exception of "B. sterniana", inflorescences of varying density < 12 cm long, complemented by leaves of variable size and shape, often covered in a dense white tomentum when young. The exception, "B. sterniana", has markedly smaller inflorescences and leaves < 6 cm long.

Female L. vierecki are distinguished by extensively yellow legs with a brown tint on the top half of the clypeus, a pale yellow-brown metasoma, and a very dense, slightly yellow tomentum on the mesosoma, metasomal terga, and head.Gibbs, J. (2011). Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini.) Zootaxa. 3073: 207.

The Quercus pubescens acorns are light brown to yellow, 8–20 mm long, usually thin and pointed. The acorn cups are light grey to almost white, with pointed, overlapping scales, covered with tomentum. The acorn stalks are thick and pubescent, up to 2 cm long. The acorns usually occur in groups of 2-5 on the same stalk.

The leaves are covered with minute russet hairs, especially the lower surface. The leaves are concentrated at the ends of twigs. The leaves turn brown, russet or yellow in fall and sometimes remain attached to the twigs until the following spring. The buds are large, long and pointed, shiny russet or light brown in colour with minute tomentum.

J. maritima 'Silverdust', a cultivar selected for its dense silvery tomentum. Jacobaea maritima is widely used in horticulture for its silvery foliage. It is winter-hardy in USDA Zones 8-10, tolerating winter temperatures down to -12° to -15 °C,Senecio cineraria Cinéraire maritime tolerant of light shade but preferring full sun. In colder areas it is grown as an annual plant.

Corokia is a genus in the Argophyllaceae family comprising about ten species native to New Zealand, Australia and Rapa Iti. Corokia species are shrubs or small trees with zigzagging (divaricating) branches. In fact, Corokia cotoneaster is commonly known as wire-netting bush. The stems of the shrubs are dark when mature, covered with downy or silky hairs (tomentum) when young.

They are translucent (hyaline) and serve to promote the growth of the fungus. Genuine cystidia arise in the hymenium and the layer directly below, the subhymenium. Both pseudocystidia and cystidia are encrusted, meaning that they feature crystal-like structures on the top. With the exception of A. laevigatum, all species have a thin separating layer, the cortex, between the hymenium and the tomentum.

Capsule, ¾ inch long, ⅓ broad, rather > turgid, densely covered with rusty tomentum. One of the earliest known illustrations of N. rajah, published in Life in the Forests of the Far East in 1862. Spenser St. John wrote the following account of his encounter with N. rajah on Mount Kinabalu in Life in the Forests of the Far East published in 1862:St. John 1862, pp.

The trunks grow to 15 m, usually no wider than 25 cm, and both are solitary, ringed, and crownshafted. The leaf is pinnately compounded, in long sheaths, usually covered in scales and hairs, as is the short petiole. The ridged rachis is flattened on the bottom and also covered in hairy tomentum. The unusual leaflets are once-folded and toothed, twisting upwards in their bottom half.

Flowers are small, white, and in dense clusters. Petiole of the akiraho plant which exists as a stalk that attaches the leaf blade to the stem which grows up to 5 millimeters long. It also has a white thin appressed white to buff tomentum below. Olearia paniculata also has a sweet smell to it and is looked at by many people as used for creating hedges.

Soredia and isidia may be seen on the ridges and margins in full magnification. It is a foliose lichen and its leaf-like thallus is green, leathery and lobed with a pattern of ridges and depressions on the upper surface. Bright green under moist conditions, it becomes brownish and papery when dry. This species often has a fine layers of hairs, a tomentum, on its lower surface.

The leaves turn yellow in Autumn. The species' name comes from the Latin word tomentum, meaning "covered with dense, short hairs," referring to the underside of the leaves, which help identify the species. Also called the white hickory due to the light color of the wood, the common name mockernut comes from the large, thick-shelled fruit with very small kernels of meat inside.

Adult Therevidae are small- to medium-sized with a body length of 2.4 to 18 mm and a hairy integument. The coloration ranges from shades of yellow to black, but commonly the background colour is masked by the tomentum. The compound eyes are generally larger in males, which in many species are actually holoptic. Females have well-developed compound eyes, but are clearly dichoptic.

S. woodfordii has half as short inflorescence brachlets (rachillae) at 4 to 6cm long. These rachillae are also half as thick at 1mm. S. chocolatinus is furthermore the only species to have its rachillae covered throughout in tomentose indumentum -this is chocolate-brown at their bases, turning cream-green near their ends, whereas S. woodfordii only has tomentum at the bases of the rachillae, and this is coloured purplish-brown.

The genus was first described by American mycologist William Alphonso Murrill in 1909. He defined species in the genus as having a cap and stem "clothed with a conspicuous sulphur-yellow, powdery tomentum, which may be the remains of a universal veil: context white, fleshy; tubes adnate, yellowish, covered with a large veil: spores oblong-ellipsoid, ochraceous-brown: stipe solid, annulate, not reticulate." Murrill set Pulveroboletus ravenelii as the type species.

Buddleja sterniana is a deciduous multistemmed shrub often growing to > 3 m high, when it can become straggly unless pruned hard. The faintly-scented flowers are pale lavender, with an orange eye, and arranged in small (< 6 cm long) panicles, which appear before the leaves on the previous year's growth, during April in the UK. The leaves are much smaller than those of the type; the undersides are typically covered with a white tomentum.

The ascus-containing reproductive structures, or ascomata, are minute, spherical bodies, typically 200–400 μm in diameter. They start out white, but gradually become rusty brown in maturity. The ascomata, which may be clustered together in groups or scattered about, grow in a shallow layer of "hairs" (actually fungal mycelia) called a tomentum. The ascomata have "appendages" composed of numerous coiled, sometimes branched helices of hyphae that are coiled 3–15 times.

Flowers It is a deciduous shrub or small tree growing to tall with a short crooked trunk and stout spreading branches; in the northern parts of its range, it is a shrub, becoming a small tree in the southern parts of its range. The bark is reddish-brown, very rough on old stems. The branchlets are red at first, then green, finally dark brown tinged with red. The winter buds are coated with rusty tomentum.

The vegetative bodies of the Sticta, the thalli, are foliose, or leafy in appearance. They typically have dimensions of in diameter, although specimens with diameters of up to have been recorded. The lobes are rounded, and the upper surface is black or brown, while the lower surface has a light to dark brown layer of fine hairs (a tomentum), with a few craters, called cyphellae. Thalli often smell of shrimp or fish.

Buddleja hatschbachii is a hermaphroditic subshrub 1 m high with brownish bark. The young branches are quadrangular, and covered with a whitish tomentum, bearing sessile lanceolate leaves 10 - 16 cm long by 2.5 - 4.5 cm wide, membranaceous, glabrescent above, and lanose below. The cream or white inflorescence is 10 - 20 cm long. The sessile perfect flowers occur in pairs of cymes, each with 3 - 12 flowers, borne in the axils of the reduced leaves or bracts.

Buddleja interrupta is a dioecious shrub 1 - 2 m high with greyish bark. The young branches are covered with a white tomentum, bearing lanceolate leaves 5 - 12 cm long by 2 - 3 cm wide, subcoriaceous, tomentulose above, white tomentose below. The cream inflorescence is 10 - 20 cm long with two orders of branches, the flowers borne in pairs of capitate sessile cymules 0.5 - 0.8 cm in diameter, each with 3 - 9 flowers. The corolla is < 2 mm long.

Fourteen to 16 pinnate ('feather-leaved') fronds emerge from the crown of the tree. They have been reported to reach up to 1.8 meters in length and have between 59 and 63 stiff leaflets, though the variation within the species can be considerable. The leaves have a tubular sheath at the base that is orange on the underside with thin, grey, tomentum. On the top, the sheath is proximally orange near the rachis of the frond, and distally green.

The outer surface of C. striatus is covered with a shaggy or woolly tomentum. Cyathus striatus can reproduce both asexually (via vegetative spores), or sexually (with meiosis), typical of taxa in the basidiomycetes that contain both haploid and diploid stages. Basidiospores produced in the peridioles each contain a single haploid nucleus. After the spores have been dispersed into a suitable growing environment, they germinate and develop into homokaryotic hyphae, with a single nucleus in each cell compartment.

The fruit bodies of Cymatoderma fungi are typically funnel-shaped, fan-shaped, or semicircular. Fruit bodies growing next to each other can fuse together. The upper surface of the cap often has sharp ridges, although in some species this is partially obscured by a thick tomentum with a texture like felt. The fertile surface of the hymenium (spore- bearing surface) is generally covered with folds, undulations, or ridges, which can be in turn by smooth, warted, or spiky.

Allagoptera caudescens is a species of flowering plant in the palm family endemic to Brazil, where it is known as buri palm.Uhl, Natalie W. and Dransfield, John (1987) Genera Palmarum - A classification of palms based on the work of Harold E. Moore. Lawrence, Kansas: Allen Press. / The name combines the Greek words for "many" and "anther" with the name of another palm genus Cocos, and the epithet is Latin for "bearlike", referring to the hairy tomentum.

Choerades marginata can reach a body length of about and a wings length of .J.K. Lindsey Ecology of Commanster In males the first antennal segment is about 1.8 - 2.1 times as long as the second one, while in female is 3 times longer. The sides of thorax (pleura) and the humeral callus are distinctly tomentose and scutum has only few, normal hairs. The lateral sclerites (mesopleuron) have a greyish-brown tomentum, with sparse yellow and black hairs all over.

Two young specimens of C. stercoreus with intact epiphragms. The fruiting bodies, or perida, are funnel- or barrel- shaped, 6–15 mm tall, 4–8 mm wide at the mouth, sometimes short-stalked, golden brown to blackish brown in age. The outside wall of the peridium, the ectoperidium, is covered with tufts of fungal hyphae that resembles shaggy, untidy hair. However, in older specimens this outer layer of hair (technically a tomentum) may be completely worn off.

The clustering trunks are extensively armed with spines, 6 – 8 cm wide, closely ringed, with aerial roots at lower leaf nodes. The pinnate leaf is borne on a well-developed and armed petiole, the sheath and rachis also whorled with spines and covered in tomentum. The linear leaflets are regularly arranged with one fold, margins are toothed, and the midrib is prominent. On flowering, the inflorescence in male plants is branched to three orders, in females to one, rarely two.

The pinnae in the middle of the leaf blade are long and in width. The inflorescence is branched to the 1st degree, has a peduncle long and wide, and has a prophyll long, wide, and covered in a brown tomentum. The young inflorescence develops in a glabrous, lightly striated, woody spathe which is in length and has an enlarged portion at the end which is long wide and ending in a short, sharply pointed tip. The axis (width?) of the inflorescence is long.

Buddleja misionum is a dioecious shrub 1 - 2 m high, with tan fissured bark. The branches are subquadrangular and covered with a dense tomentum. The sessile lanceolate to elliptic leaves are 5.5 - 10 cm long by 1.4 - 4 cm wide, lanose above and below. The yellow inflorescences are 15 - 30 cm long, comprising 5 - 15 pairs of heads 1 - 1.5 cm in diameter located in the axils of the terminal leaves, each head with > 20 flowers; the corolla tubes 4.5 - 5 mm long.

Buddleja simplex is a small shrub, the young branches subquadrangular with adpressed tomentum. The small, membranaceous oblong-elliptic or oblong-lanceolate leaves have 0.5 - 1.5 cm petioles, and are 2 - 4 cm long by 0.5 - 1.2 cm wide, tomentulose above, tomentose below. The bracted inflorescences are 5 - 10 cm long, comprising 8 - 10 pairs of sessile or pedunculate heads < 0.6 cm in diameter. The species is considered very close to B. sessiliflora, the latter having marginally larger flower heads and longer fruits.

The gill trama are interwoven or at times subparallel, the hyphae 4–7 µm in diameter. The generative tissue below the hymenium (subhymenium) is arranged in a parallel fashion. The cuticle (the outer layer of the fruiting body) is made of dense interwoven hyphae, connected to a tuft of colorless, long, slender (2.5–5 µm diameter) hyphae. There are no clamp connections in the epicuticular hyphae, but there are on the hyphae of the tomentum at the base of the pileus.

The fruit bodies (peridia) of species in Nidula are typically between 3–8 mm in diameter, 5–15 mm tall, and cup- or urn-shaped—having almost vertical sides with the lip flared outwards. Depending on the species, the color may range from white, grey, buff, or tawny. The peridia are covered on the external surface with closely matted, shaggy hairs, technically called a tomentum. Immature peridia have a membrane covering the mouth (an epiphragm), which later ruptures into 4–7 lobes when mature.

The Alakai Swamp pritchardia grows up to high, and forms a trunk with a diameter of approximately . The leaves are yellowish when they emerge, and this color is sometimes maintained on the undersides of mature leaves. The leaves are leathery and smooth above, but the undersides are waxy and have a covering of greyish to yellowish tomentum (felt) beneath. The shiny black fruits of this palm are ovoid, about 2 cm by 13 mm, and contain a seed up to 15 mm in diameter.

The original Latin description of N. dubia reads: > Folia mediocria sessilia, lamina lanceolato-spathulata, nervis > longitudinalibus utrinque c. 3, basi attenuata 1/3-2/3 caulis amplectente, > vagina 0 ; ascidia rosularum et inferiora ignota ; ascidia superiora parva, > parte inferiore tubulosa v. leviter ventricosa, supra medium > infundibuliformia, costis 2 prominentibus ; peristomio fere horizontali, > operculum versus acuto, applanato, 2-4 mm lato, costis 1/2-1/4 mm > distantibus, dentibus 0 ; operculo anguste cuneato, facie inferiore plana ; > inflorescentia ignota ; indumentum parcum, iuventute tomentum fuscum, > denique deciduum.

Interspersed among the asci are thin, filamentous, branched paraphyses that extend beyond the tops of the asci. Viewed with a microscope, the wall of the apothecium is made of three tissue layers of roughly equal thickness. The first layer of tissue is black, leathery and compact, and covered with a fine layer of brownish-black hairs (a tomentum); the second layer consists of loosely interlaced brown hyphae suspended in a gelatinous matrix. The third layer is the fertile, spore-bearing surface, the brownish-black hymenium.

Buddleja perfoliata is a small dioecious shrub 0.8 - 2 m tall in the wild, much branched, and with a greyish-black shredding bark. The young branches are subquadrangular and tomentose, bearing sessile lanceolate to elliptic opposite subcoriaceous leaves, rugose above with dense felt-like tomentum covering both surfaces. The yellow inflorescences, redolent of sage, are 5 - 25 cm long, comprising 5 - 26 pairs of heads borne in the axils of the leaves, each head about 1 cm in diameter with 30 - 40 flowers. Ploidy: 2n = 38.

The leaves of this species are not hairy or felted, though they can sometimes have an indistinct tomentum over them. The leaves are dark green, densely-packed, obovate, compact ("retuse") - over one and a half times wider than they are thick, and up to 17 mm long. Its flowers have pink, thinly-ovate petals and 20-25 stamens, and are born on a short inflorescence. In contrast, similar smooth-leaved species, such as Anacampseros lanceolata or Anacampseros telephiastrum, have leaves over 18 mm long.

The yellow, green or gray solitary trunks reach over 15 m in height at a 20 cm diameter, slightly bulging at the base. The leaves meet the trunk with a 1 m, slightly-bulging crownshaft covered in tomentum and scales, giving it a brown to gray to white color. The pinnate leaves extend from 60 cm petioles at a 3 m length, recurved and bright green in color. The leaflets are over a meter long, obliquely acute, with one fold along a prominent midrib.

Buddleja bullata is a dioecious shrub or small tree 1 – 10 m high, with a greyish-tan bark. The branches are subquadrangular and tomentose. The membraneous or subcoriaceous leaves are elliptic, lanceolate or ovate, 8-22 cm long by 3-8 cm wide, glabrescent, often bullate, above and covered with a white or yellowish tomentum below. The cream or yellow inflorescences are paniculate 7-25 cm long by 7-20 cm wide, comprising globose heads about 1 cm in diameter, each with 6-12 flowers; the corollas are 2.5-3.5 mm long.

Buddleja blattaria is a dioecious shrub, < 1 m tall, with brown fissured bark. The young branches are quadrangular and covered with thick tomentum. The leaves are sessile elliptic or oblong-elliptic, 4-10 cm long by 1.5-3 cm wide, lanose on both surfaces. The white or cream inflorescence is 3-8 cm long, comprising sessile flowers borne on one terminal and 1-3 pairs of globose heads below, in the axils of small leaves, each head 1-2 cm diameter with 20-40 flowers, the corolla 5 mm long.

The underside is covered by light brown tomentum and rhizines except on raised areas that correspond to the depressions on the upper surface. Fungal fruit bodies (ascocarps), rarely present, are small dark red discs with a thick inflexed margin. Thallus lobes grow away from the substrate in irregular patches as in L. pulmonaria but unlike the more regular rounded and flattened colonies of L. quercizans, L. amplissima and L. virens. The algal symbiont is the cyanobacterium Nostoc, in contrast to the green algae in most other species of Lobaria.

The fruit body varies in width from in the thickest portion, and has a length of ; the stem is wide by long. Both stem and fruit body are covered by a dense layer of soft, brown, velvety "hairs", or tomentum. In maturity, the fruit body splits open into four to seven rays that curve downward, similar to mushrooms of the genus Geastrum. The spores are borne on the inner surface of the rays, which, depending on the maturity of the specimen, may range in color from whitish to saffron to salmon to butterscotch to chestnut.

The stem is normally covered with a white tomentum at the base. The upper side (inside) of the fruit body is usually quite sterile or with a few isolated basidia and is slightly verrucose as a result of the densely crowded protruding ends of the hyphae. The sterile and fertile surfaces of the fruit body are almost the same color, transparent reddish- orange to flesh pink or flesh orange, at other times more purplish-red. The fruit bodies usually develop a slightly brownish tinge when they are old.

A. rubra inflorescence in bract The solitary trunks are robust and conspicuously ringed, sparsely armed in youth, with a slightly swollen base. The tubular leaf bases wrap the trunk, forming a 60 – 90 cm crownshaft covered in hairy tomentum and spines. The leaves are pinnate, 2 m long, and borne on a tomentose petiole, sparsely to densely spiny. The leaflets emerge from the hairy rachis in a flat plane, dark green above and lighter below, to 30 cm long, once-folded with a red or yellow, toothed midrib.

Like many Vitis labrusca varieties, the Catawba grapevine has large leaves that can be mono-lobed or moderately three-lobed with the slightly smaller leaves that are closer to the apical meristem of the vine shoot. The upper surface of the leaves have a medium green color with a leathery texture while the underside has dense white tomentum (wooly hairs). The vine produces moderate size clusters that are nearly cylindrical and fairly compact. The large berries have an oval shape with what Bern Ramey describes as'"a dull purplish-red with a lilac-colored bloom".

The trunks are both solitary and clustering with short internodes, usually covered in spiny, persistent leaf sheaths. The pinnate leaf has a tubular sheath with whorls and scatters of spines and hairy, brown tomentum, the sheath ending in a narrow, armed auricle on each side of the petiole. The petiole is abaxially rounded, adaxially flattened, hairy, and equipped with grapnel spines. The rachis is similarly armed, the leaflets widely spaced to crowded, linear, with one fold, and covered in bristles and scales; the midrib is adaxially prominent, the transverse veinlets are short yet conspicuous.

Detailed analysis and comparison of fresh specimens revealed that what had been collectively called "S. coccinea" actually consisted of four distinct species: S. austriaca, S. coccinea, S. dudleyi, and S. jurana. The phylogenetic relationships in the genus Sarcoscypha were analyzed by Francis Harrington in the late 1990s. Her cladistic analysis combined comparisons of the sequences of the internal transcribed spacer in the non-functional RNA with fifteen traditional morphological characteristics, such as spore features, fruit body shape, and degree of curliness of the "hairs" that form the tomentum.

Clinosperma bractealis is a solitary-trunked palm which grows up to 15 m tall at a uniform 10 cm width. The gray to tan trunks are ringed by leaf scars up to the unusual, 60 cm tall crownshaft, holding 12 - 15 pinnate leaves. At the base, the crownshaft bulges significantly to one side, giving it a distinct triangle shape. It is usually covered in a hairy tomentum as well as white wax and, depending on the concentration of each, may be brown to green to white in color.

Young fruit body showing the tomentose cap margin and forked gills The cap is initially convex, but as it matures the center forms a depression and the outer edges rise until it assumes the shape of a shallow funnel; its final width is typically between . The cap margin is strongly curled inward; when young, it is tomentose (covered with a thick matting of hairs), forming a veil-like structure that partly covers up the gills. This tomentum diminishes with age. The cap surface is at first similarly tomentose, but eventually, the hairs wear off, leaving the surface more or less smooth.

A much-branched shrub, growing to a height of 4 m; the stem angled and older stems ash grey and flaking, often bearing paired spines at the nodes. Leaves are simple, nearly sessile, ob-lanceolate to lanceolate, 2–9 cm long, cuneate at the base, clothed on both sides with white tomentum; aromatic, the edge double toothed or round toothed. Flowers are two-lipped with yellow or yellow-orange lower petal and white or cream-colored upper petal, the orange anthers held inside the upper petal. Whorls few or many, 5–6-flowered; bracts rigid, tricuspidate.

Trachycarpus martianus (also known as Martius' fan palm) is a species in the genus Trachycarpus from two distinct populations, one at in the Khasia Hills, Meghalaya Province, in northeast India, the other at in central northern Nepal. Other populations have been reported in Assam, Sikkim, Burma and southern China.Kew World Checklist of Selected Plant Families, Trachycarpus martianus The main identifying characteristics are the regular leaf splits (to about half way), the coffee bean shaped seeds (similar looking to Trachycarpus latisectus) and the bare, as opposed to fibrous trunk. The new leaf spear and edges of the petioles are covered with a white tomentum.

Buddleja tibetica is a deciduous shrub of very sparse habit, growing to < 3 m high, more in diameter. The flowers appear before the leaves at the nodes of the previous year's growth, during March in the UK. The faintly scented flowers form compact sessile or subsessile clusters, initially dark purple, they rapidly turn pale on opening, ultimately becoming white. The distinctive leaves are < 10 cm long, and broadly lanceolate, though there is considerable variation in both size and shape; the upper surface covered with a tomentum which persists for several months, bestowing a greyish-white bloom.

They may be acute to acuminate, S-shaped to linear, the terminal pair usually obscurely lobed corresponding to the fold count; reaching 90 cm, they are usually deep green with a lighter underside. The rachis, petiole and crownshaft may be lightly to densely covered in hairy, brown tomentum. The inflorescence is branched to one order, rarely to two, erect or pendulous, and emerges below the crownshaft in all but N. gajah which emerges within the leaf crown. The fleshy male and female flowers share the same branches, proximally arranged in triads and distally in pairs or singles.

Although Pereskia grandifolia is a cactus by classification, it takes the form of a shrub or small tree, in height. It has a grayish-brown trunk up to 20 cm in diameter. The areoles are rounded cushion-shaped grayish or brownish tomentum; on the twigs they are 3–7 mm diameter and up to 12 mm on the main trunk. The spines range from black to brown, the number at each areole gradually increasing with age; new twigs can have spineless areoles, while the trunk areoles may have up to 90 spines, each 2-6.5 cm long.

For example, species in the ollum clade all have spore lengths less than 15 µm, while all members of the pallidum group have lengths greater than 15 µm; the striatum group, however, cannot be distinguished from the pallidum group by spore size alone. Two characteristics are most suited for distinguishing members of the ollum group from the pallidum group: the thickness of the hair layer on the peridium surface, and the outline of the fruit bodies. The tomentum of Pallidum species is thick, like felt, and typically aggregates into clumps of shaggy or woolly hair. Their crucible-shaped fruit bodies do not have a clearly differentiated stipe.

Buddleja nitida is a tall shrub or small tree 4 – 15 m high, with a trunk < 60 cm in diameter, its exfoliating bark brown to black. The crown is dense and rounded, the young branches subquadrangular and tomentose, bearing oblong to lanceolate subcoriaceous leaves 3 - 10 cm long by 1 - 3.5 cm wide, glabrescent above, but with a strongly adpressed tomentum below. The leaves have petioles 1 - 3 cm long. The yellow to orange inflorescence is paniculate, with 3 - 4 orders of branches, subtended by leaves or small bracts, the flowers grouped 3 - 5 in small cymules, 5 - 7 mm in diameter; the corollas 2.5 - 3 mm long.

Flowers, Port-Cros National Park, France Foliage and buds, Corsica, France Silver Ragwort is a very white-wooly, heat and drought tolerant evergreen subshrub growing to tall. The stems are stiff and woody at the base, densely branched, and covered in long, matted grey-white to white hairs. The leaves are pinnate or pinnatifid, long and broad, stiff, with oblong and obtuse segments, and like the stems, covered with long, thinly to thickly matted with grey-white to white hairs; the lower leaves are petiolate and more deeply lobed, the upper leaves sessile and less lobed. The tomentum is thickest on the underside of the leaves, and can become worn off on the upper side, leaving the top surface glabrous with age.

The wrinkled and ridged surface of the hymenium The basidiocarps, or fruit bodies, of immature Gomphus clavatus are club-shaped and have one cap or pileus, but later spread out and have a so-called merismatoid appearance—several vase-shaped caps rising from a common stem. The fruit body is up to wide and tall, fan-shaped with wavy edges. The upper surfaces of the fruit bodies are covered with brown hyphae (microscopic filaments) that form small, distinct patches towards the margin, but combine to form a continuous felt-like fine-haired area, or tomentum, over the center of the cap. The color of the upper cap surface is orange-brown to violet, but fades to a lighter brown with age.

It is a cycad with an erect stem, up to 2 m tall and 20–30 cm in diameter. The leaves, pinnate, 70–150 cm long, are arranged in a crown at the apex of the stem and are supported by a 7-20 cm long petiole, without thorns and covered with a greyish tomentum; each leaf is composed of 18-60 pairs of lanceolate, leathery leaflets, on average 8-15 cm long, of glaucous green color. It is a dioecious species with male specimens that have 1-3 cones, sub-cylinders, 16–20 cm long and 3–7 cm broad, greenish to orange yellow in color, and female specimens with 1-3 ovoid cones, 17–23 long cm and with a diameter of 9-12 cm, initially green, yellow when ripe. The seeds are coarsely ovoid, 20–33 mm long, covered with a red-brownish sarcotesta.

Specimen from Lake Wenatchee area, Washington State, US Polyozellus multiplex is part of the group of fungi collectively known as cantharelloid mushrooms (which includes the genera Cantharellus, Craterellus, Gomphus, and Polyozellus) because of the similarity of their fruit body structures and the morphology of the spore-producing region (the hymenophore) on the underside of the caps. The fan- or funnel-shaped fruit bodies of the black chanterelle grow clustered together on the ground, often in large masses that may reach aggregate diameters of up to , although they are usually up to . The individual caps, wide and almost as long, are violet-black, with edges that are initially whitish, and with a glaucous surface—a white powdery accumulation of spore deposit. The upper surface may be zonate—lined with what appear to be multiple concentric zones of texture caused by areas of fine hairs (a tomentum); and the edges of the caps have a layer of very fine hairs and are lobed and wavy.

Like many of the Senecio genus S. congestus can be an annual or biennial and perhaps rarely perennial, depending on the conditions. A villous broad leafed plant with a single hollow stem and favoring mud flats like Marsh Groundsel (Senecio hydrophilus) but not alike in that marsh ragwort cannot tolerate alkaline sites nor standing water. In the early stages of growth, the leaves, stem, and flower heads are all covered with translucent hairs, producing a "greenhouse effect" close to the surface of the plant, essentially extending the growing season by a few vital days by allowing the sun to warm the tissues, and preventing the heat from escaping. Leaves and stems: An erect plant standing 6 to 60 inches (15 to 150 cm) tall, S. congestus varies as much in stature as it does in the distribution and the persistence of its tomentum (the closely matted or fine hairs on plant leaves).

It is a cycad with a trunk at least partly underground, up to 1.5 m high and with a diameter of 25-30 cm, often with secondary stems originating from shoots that arise at the base of the main stem. The leaves, pinnate, 60–90 cm long, are arranged in a crown at the apex of the stem and are supported by a 10-20 cm long petiole, without thorns; each leaf is composed of numerous pairs of lanceolate leaflets, with an entire margin, of an average length of 9-12 cm, of olive-green color, inserted on the yellowish rachis. It is a dioecious species with male specimens that have 1 or 2 cones, cylindrical-conical, 13–22 cm long and 5–7 cm broad, sessile, covered with a greyish tomentum, and female specimens with 1 or 2 cylindrical-ovoid cones, pedunculate, 20–30 cm long and 16–18 cm in diameter, greenish-yellow in color, also thickly tomentose, gray to brown in color. The seeds are coarsely ovoid, 20–30 mm long, covered by a yellow-orange to amber color sarcotesta.

It is a cycad with an arborescent habit, with an erect or decombent stem, up to 10 m tall and 35-45 cm in diameter, often with secondary stems originating from basal suckers. The leaves, pinnate, arranged in a crown at the apex of the stem, are 1.2-1.5 m long, supported by a 30-40 cm long petiole with a densely tomentose base, and composed of numerous pairs of lanceolate, leathery leaflets, up to 20 cm long, with entire margin or occasionally with a single spine on the inferior margin and sharp apex. It is a dioecious species, with male specimens that have from 1 to 8 cylindrical or strictly ovoid cones, erect, 30–55 cm long and 8–12 cm broad, green in color and covered with a brownish tomentum, and female specimens with 1- 6 cylindrical cones, about 35–45 cm long and 17–20 cm wide, the same color as the male cones. The seeds are coarsely ovoid, 3–3.5 cm long, covered with a yellow to brown sarcotesta.

Eriocephalus africanus, showing lightly arachnoid leaves, and heavily arachnoid seed follicles. The arachnoid leaves of this Gazania are covered with a fragile cobwebby felt Hayworthia arachnoidea - inaccurately named the "cobweb aloe" - Its spidery appearance arises from the long denticles on its leaf margins Cephalocereus senilis is an example of a long-lasting, robust arachnoid effect created by modified spines Arachnoid as a descriptive term in botany, refers to organs such as leaves or stems that have an external appearance similar to cobwebs from being covered with fine white hairs, usually tangled. Such material is one common cause of plants having a grey or white appearance.Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 The usages of various authors in distinguishing between "arachnoid" and a few other terms referring to hairiness, such as floccose, pubescent, tomentum, cottony, or villous, tend to be arbitrary, but as a rule the term is best reserved for hairiness lighter than a felted layer, and inclined to rub off or to be easily damaged in other ways.