indumentum


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indumentum

[‚in·də′men·təm]
(botany)
A covering, such as one that is woolly.
(mycology)
A covering of hairs.
(vertebrate zoology)
The plumage covering a bird.
References in periodicals archive ?
henriquesii, when considering leaf morphology (pinatilobate, with round lobes and abaxial leaf surface glaucous and with a dense indumentum, dominated or punctuated by fasciculate trichomes).
4 cm wide, coriaceous, with brown indumentum, unarmed; rachis 28-38 cm long, with indumentum like that of the peduncle, with abundant short spinules up to 0.
From a morphological point of view, the members of the Barnadesioideae are characterized by unique, axillary spines (excepting Duseniella, Huarpea, Schlechtendalia, and some species of Chuquiraga and Dasyphyllum), and by a unique indumentum in vegetative and reproductive organs, the barnadesioid hairs (Bremer 8,: Jansen, 1992; Katinas & Stuessy, 1997).
Guzmania kareniae can be distinguished from the nearly sympatric Guzmania squarrosa by having the indumentum of trichomes on the bracts and foliage appressed and inconspicuous (versus conspicuously "scurfy" on G.
In floral features all specimens of this species group are similar, and the species can be distinguished most readily by differences in indumentum of vegetative structures.
Many of these have unusual leaves, covered with a thick 'suede' pelt called indumentum and the outstanding young growths look like beautiful silver candles over the whole shrub.
It is characterized by digitate leaves with lepidote indumentum, flowers with bilabiate calyx, lepidote and corolla yellow with red or brown nectar guides on the fauces.
Leaves elliptic to broadly elliptic, 14 * 20 mm long, some cuneate at base, petioles 4-7 mm long in mature leaves, indumentum short velutinous when young, pubescent with age.
The most easily observed characters are lamina shape and size, indumentum, flower (nectar scales, petals) and fruit morphology.