单词 | multicostate |
释义 | > as lemmasmulticostate multicostate adj. Brit. , U.S. , ΘΚΠ the world > plants > part of plant > part defined by form or function > ridge channel > [adjective] rivelledOE wrinkled1563 channelled1597 ribbed1597 trisulcated1703 ribby1706 rugose1707 ruminate1800 ruminated1828 striolate?1841 multicostate1849 crested1856 fork-ribbed1858 tricostate1861 bicarinate1872 carinal1872 vallecular1875 carinate1876 bicarinated1880 trisulcate1891 1849 J. H. Balfour Man. Bot. §144 Reticulated Venation... I. Unicostate. A single rib or costa in the middle (midrib). II. Multicostate. More than one rib. 1881 Jrnl. Linn. Soc.: Bot. 18 271 Achenia multicostate. 1945 W. O. Howarth & L. G. G. Warne Lowson's Textbk. Bot. (ed. 9) vi. 129 In both types the venation may be unicostate or multicostate, according as there is one chief vein (forming the midrib) or a number of chief veins. 1992 M. Schaffer-Fehre tr. S. Schaal & W. Ziegler Messel iv. 34 In contrast to the multicostate leaves of monocotyledons..which show, at most, simple connections (commissures), the tertiary veins in the Araceae are reticulate. < as lemmas |
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