单词 | pistia |
释义 | Pistian. Botany. A monotypic genus of the family Araceae comprising the water lettuce, Pistia stratiotes, a pantropical aquatic plant which forms a floating rosette of leaves and has become a troublesome weed of waterways (also called tropical duckweed, river lettuce); (also pistia) a plant of this genus, water lettuce.Valid publication of the genus name: Linnaeus Species Plantarum (1753) II. 963. ΘΚΠ the world > plants > particular plants > plants and herbs > aquatic, marsh, and sea-shore plants > [noun] > duckweeds and allies endemetea1387 duckweedc1440 frog's foot1526 greens1526 duck's meat1538 water lentil1548 grain1578 fen lentil1601 Pistia1754 lemna1789 lentil-dew1800 water lettuce1847 Jenny Greenteeth1852 creed1880 1754 New & Compl. Dict. Arts & Sci. III. 2444/1 Pistia, in botany, a genus of the gynandria-hexandria class of plants, the corolla whereof consists of a single, unequal, cucullated, turbinated petal. 1767 Bartram's Jrnl. 17 in W. Stork Acct. E. Florida (ed. 2) At the entrance of the river into the great lake there floats prodigious quantities of the pistia. 1832 C. Lyell Princ. Geol. (ed. 2) II. vi. 98 On these green isles of the Mississippi,..the pistia and nenuphar display their yellow flowers. 1878 H. M. Stanley Through Dark Continent II. vi. 183 The inhabitants..devoted themselves..to fishing, and the manufacture of salt from the Pistia plants. 1906 Blackwood's Mag. Feb. 213/1 The floating Pistia, for all the world like a minute cabbage. 1960 N. Polunin Introd. Plant Geogr. xv. 504 Floating freely on the surface are abundant plants of Pistia. 2000 Times of India (Nexis) 26 Mar. The thick carpet of water hyacinth and Pistia that cover [sic] the canals block the polluted water from being flushed into the Vembanad Lake. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1754 |
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