…The veins that create various patterns on the leaf blade are structures formed by the vascular bundles that enter the leaf and the specialized tissues that surround them. The pattern that the veins create on the leaf blade is called venation. Veins are consistent across plant groups, and in ferns there are free veins and reticulate veins of various stages of development, and in all cases the ends of the veins are basically open bifurcated. … *Some of the terminology explanations that mention "venation" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…葉身にいろいろの模様をつくる葉脈は,葉へ入ってきた維管束とそれをとり巻く特殊な組織とでつくられる構造である。葉脈が葉身につくる模様を脈理venationという。脈理は植物群によって一定で,シダ植物では遊離脈といろいろの段階に発達した網状脈があり,いずれの場合も脈の末端は開放二叉分岐を基本としている。… ※「venation」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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