单词 | phyllodium |
释义 | phyllodiumn. Botany. = phyllode n. 1. ΘΚΠ the world > plants > part of plant > leaf > petiole or leaf-stalk > [noun] footstalk1562 leaf stalka1671 petiolus1707 petiole1753 petiolule1792 subpetiole1827 stalklet1835 phyllodium1840 phyllode1848 1840 Penny Cycl. XVIII. 127/2 Phyllodium is that organ which in the greater part of the New Holland Acacias, or wattle-trees, stands in the place of leaves. 1853 A. Gray Bot. Text-bk. (ed. 4) 172 In these cases the proper blade of the leaf is commonly abortive or disappears; this substitute, called a Phyllodium (meaning a leaf-like body), taking its place. These phyllodia constitute the whole foliage of the numerous Australian Acacias. 1885 G. L. Goodale in A. Gray & G. L. Goodale Bot. Text-bk. (ed. 6) II. ii. x. 347 All the eight species of this genus [sc. Sarracenia] have hollowed phyllodia, which form slender pitchers or urns. 1947 Bull. Torrey Bot. Club 74 187 Of particular interest was the Thong-leaved Sagittaria, with its long slender phyllodia up to 1 meter long and 10 mm. wide and small floating flowers. 1996 Amer. Jrnl. Bot. 83 1016/2 Pitchers senesce in late summer, when thick, flattened green basal leaves (phyllodia) appear, which persist until the following season. Derivatives phyˈllodial adj. Botany relating to or of the nature of a phyllodium. ΘΚΠ the world > plants > part of plant > leaf > petiole or leaf-stalk > [adjective] petiolar1760 petiolary1793 petiolular1858 phyllodial1858 1858 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Phyllodialis, applied to the cup of an ascidiated leaf..when it is formed by the phyllodium, or the petiole enlarged in the form of a leaf, as in the Saracenia purpurea: phyllodial. 1948 Amer. Jrnl. Bot. 35 654/1 Phyllodial types are adapted to xerophytic conditions where competition from other components of the plant kingdom is reduced. 1987 Amer. Jrnl. Bot. 74 739 The annual and the most plastic perennial can, under some conditions, continue to produce phyllodial leaves much larger than the seedling leaves. This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1840 |
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