Botany. The pelta of a lichen. Cf. pelta, n. 2.
| 单词 | θ23758 |
| 释义 | the world > plants > particular plants > lichen > [noun] > part(s) of (26) pelt1759 Botany. The pelta of a lichen. Cf. pelta, n. 2. pelta1760 Botany. Any of various shield-like structures, typically either crescent-shaped or having the form of a slightly concave disc; spec. a flat… scutellum1760 Botany. (See quots.) scyphus1777 Botany. In a lichen: a dilatation of the podetium bearing shields on its margin. Cf. scypha, n. shield1796 Botany. (See quot. 1804.) podetium1814 In some lichens (esp. of the genus Cladonia): a lichenized stalk-like portion of a fruticose apothecium, bearing spore-producing tissue at its tip. apothecium1830 The ‘shield’ or spore-case, containing the fructification in lichens. cistella1832 = cistula, n. 3. rhizine1832 A root-like structure consisting of a hypha or a group of hyphae, located on the underside of the thallus of a foliose lichen and serving to anchor… scypha1832 = scyphus, n. soredium1836 A thallus-bud or cell in lichens. Usually in plural. amphigastria1842 With pl. concord. Scale-like leaves, resembling stipules, developed on the under side of some Liverworts. gonidium1845 One of the cells filled with chlorophyll which are formed beneath the cortical layer in the thallus of lichens; now known to be imprisoned algæ. macrogonidium1853 hypothallus1855 The fibrous or filamentary substratum on which the thallus of lichens is developed. crustaceous lichens1856 Pertaining to, or of the nature of, a crust or hard integument. crustaceous lichens (in Bot.): see quot. 1882. pycnide1856 Originally: a fruiting body of certain lichens. Later also: = pycnidium, n. perianth1857 In a foliose liverwort: the fused uppermost perichaetial bracts surrounding the calyptra. isidium1866 One of a number of coral-like or wart-like elevations or excrescences of the thallus in certain lichens, having the function of soredia. thamnium1866 (See quot. 1866.) endospore1875 (a) the inner coat of a spore in lichens; (b) a spore formed in the interior of a theca. perigynium1882 A structure surrounding the ovary or archegonium of a plant; spec. an inflated membranous sac (utricle) surrounding the ovary in sedges. Also: the… pseudocyphella1882 (in certain lichens) a pore in the cortex of the thallus that resembles a cyphella but lacks its lining of specialized cells; usually in plural. thecium1882 The hymenium, n. of a lichen. parathecium1921 An outer, hyphal layer of an apothecium of a lichen. soralium1921 A well-defined area of the thallus in which soredia occur, characteristic of certain lichens. |
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