作者: Charles Carroll Kuehnert
DOI: 10.1007/978-1-4684-3207-7_6
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摘要: Leaf primordia in the vascular plants are formed at regular intervals flanks of shoot apex. The arise as result divisions groups cells surface and subsurface cell layers In ferns, primordium develops a leaf apical characteristic species, assumes dorsiventral symmetry, by rapid growth quickly overtops meristem.