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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The overdiffercntiatcd indumentum is formed by emergences, c Leaf gall induced by Ditylenchus gallaeformans (Nematoda) on Miconia albicans (Mclastomataccae).
The lower surface of the leaf has a much denser indumentum than the upper surface (Figure 1).
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).
Young stems and abaxial foliar surfaces with well developed, 0.2-1 mm long, wooly, dendritic, rusty brown hairs with well developed axis and moderate number of terete short to moderately long arms (Wurdack 1980, indumentum type 26), persistent; Mature leaves of each pair equal in size, 3.5-5.5 x (8)-11.5-(13) cm, elliptic-lanceolate, cuspidate apically and acute to obtuse basally, 5-nerved, secondary lateral veins 1-2 mm distant chartaceous to coriaceous, entire, with broadly revolute margins, brownish green and glabrous adaxially, pale rusty-brown abaxially; petioles 18-30 (35) mm long and 1.5-2.5 mm diameter; petiole length to lamina length 1:(2.2)-2.5-(4); lamina length to width (1.7)-2-(3.9):1.
argyrogaliciana Number of capitula 1 1 Stellate trichomes abundant on both few to numerous on on leaves surfaces of all leaves adaxial surface of some leaves and absent on others; few to numerous on abaxial surface of some leaves and absent on others Indumentum of very dense, with very dense, with involucral bracts dominant long simple stellate, glandular and eglandular trichomes, long simple eglandular [+ or -] abundant trichomes in more or stellate trichomes and less similar proportions very scarce or absent (generally simple glandular trichomes eglandular ones most abundant) Characters P.
According to this author, young vegetative branches, inflorescences and fruits in their early stages of development show dense rust-colored tomentose indumentum, and glandular trichomes (GTs) may be present on their petals, stamens and styles.
chichicara, but the two are so different in habit, indumentum, and fruits that justify their recognition as distinct species.
by a combination of indumentum, pigmentation and flower morphology features.