The morphological nature of the open dichotomous leaf venation ofKingdonia andCircaeaster and its systematic implication

被引：8

作者：

Ren Yi

Xiao Ya-Pin

Hu Zheng-Hai

机构：

[1] Northwest University,Biology Department

[2] Shaanxi Normal University,Biology Department

来源：

Journal of Plant Research | 1998年 / 111卷 / 2期

关键词：

Morphological nature; Systematic implication; Variation; Venation;

D O I：

10.1007/BF02512174

中图分类号：

学科分类号：

摘要：

After the further studies on the open dichotomous leaf venation ofKingdonia andCircaeaster, we considered that the venation of these genera is incomparable to that of some gymnosperms such as Ginkgoaceae, and is a degenerated characteristic in the morphological nature. We also considered that this characteristic is very important on determining the systematic relationship between these genera and other members of Ranunculales (sensu Takhtajan 1980), but its implication in the phylogeny of angiosperms was overemphasized.

引用

页码：225 / 230

页数：5

共 19 条

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Ren Y.(1979)The morphology of the dichotomous leaf venation in Plant Syst. and Evol. 131 133-142

[12]

Hu Z.H.(1980) and its systematic implication Bot. Rev. 46 225-359

[13]

Li Z.J.(1974)Leaf venation and pubescense in the genus Aliso. 8 147-209

[14]

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[15]

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[17]

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[18]

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[19]

Van der Hammen L.(undefined)Traces of ancient dichotomies in angiosperms undefined undefined undefined-undefined

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