| 单词 | beard lichen |
| 释义 | > as lemmasbeard lichen beard lichen n. any of various epiphytic lichens, esp. of the genus Usnea, which hang down from a host tree in the manner of a long beard.Cf. greybeard lichen n. at greybeard n. Compounds 2, old man's beard n. 6. ΚΠ 1835 Amer. Gardener's Mag. Dec. 443 Those gray beard lichens, giving the appearance of honorable and honest age to the pendent branches. 1857 Harper's Mag. July 179/2 The common Beard Lichen (Usnea barbata)..is found in all forests, especially where evergreens have the majority. 1956 H. J. Lutz Ecol. Effects of Forest Fires in Interior Alaska (U.S. Dept. Agric. Techn. Bull. No. 1133) 94 Fruticose lichens of the Cladonia group, together with certain beard lichens (such as species of Usnea and Alectoria) growing on trees, form the principal winter food of the caribou. 2005 New Yorker 14 Feb. 224/1 The branches in the tree's top were festooned with beard lichens—they looked like the frizzy beards of dwarves. < as lemmas |
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