有限维管束 closed vascular bundle

互联网2013-11-14

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有限维管束 closed vascular bundle 指木质部与韧皮部之间没有形成层而不能产生新的维管成分的维管束。蕨类植物的同心维管束和许多单子叶植物的外韧维管束均属之。与此相反具有形成层的则称为无限维管束（ open vascular bundle）。

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