...The vascular bundle that leaves the stem and enters the petiole is called a leaf trace. When a leaf trace separates from the stem's vascular bundle, a gap is formed in the stem's vascular bundle called a leaf gap, but in the case of the protostele, no leaf gap is formed. There may be only one leaf trace, but it is common for one petiole to have multiple leaf traces, and the number may be constant or variable depending on the species. ... *Some of the terminology that refers to "leaf gap" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…茎から離れて葉柄へ入っていく維管束を葉跡leaf traceという。茎の維管束から葉跡が分出するとき,茎の維管束にできる間隙を葉隙leaf gapというが,原生中心柱の場合,葉隙はつくられない。葉跡は1本だけの場合もあるが,一つの葉柄に複数の葉跡が入るのがふつうで,その数は種によって一定していることと,不定のことがある。… ※「leaf gap」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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