| 单词 | quillwort |
| 释义 | > as lemmasquillwort quillwort n. any of various chiefly aquatic, flowerless vascular plants constituting the cosmopolitan genus Isoetes, so called from their long cylindrical leaves; esp. the European plant I. lacustris, which grows at the bottom of lakes and is also called Merlin's grass. ΘΚΠ the world > plants > particular plants > ferns > [noun] > quill-wort quillwort1762 Merlin's grass1828 isoetes1886 1762 W. Hudson Flora Anglica 393 Isoetis... Anglis, Quillwort. 1882 Amer. Naturalist 16 506 The grass-like or rush-like plants commonly designated as the quillworts, and included in the genus Isoëtes,..belonging to the great group of plants lying next below the Phanerogams. 1945 A. B. Jackson Step's Wayside & Woodland Ferns (new. ed.) 137 Guernsey Quillwort. Isoetes hystrix... The only stations for it are in the islands of Guernsey and Alderney, where it occurs on sandy or stony ground that is only occasionally inundated; and in Cornwall. 2004 W. B. Maynard Walden Pond x. 287 Winkler's study found that various aquatic Isoetes, or quillwort, plants had dramatically declined since swimming and bank erosion began pouring sediments into the pond. < as lemmas |
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