摘要
本文用扫描电子显微镜较详细地观察了中国产卷柏科Selagincl aceae植物的28种小孢子和26种大孢子的形态特征。该科孢子纹饰复杂而较稳定,较大的纹饰往往由较小的规则的纹饰构成;个别种的大孢子有单裂缝类型;同种内大小孢子纹饰不相似;作者据孢子形态学特征支持将卷柏科分为两类(相当于两个属或一个属的两个亚属),即同型叶类和异型叶类,并将异型叶类分为五个种组;根据孢子纹饰等讨论了科属内的演化关系。
The morphological characteristics of the microspores of 28 species andthe megaspores of 26 species in the family Selaginellaceae from China wereobserved in detail by using scanning electron microscope. The ornamenta-tions cf both spores of different species in the Selaginellaceae are diver-sified and stable. The larger ornamentations are always composed of theregular smaller ones. The o? namentations of both spores in the same spe-cies are not similar. Acconding to the morphological characteristics of thespores the authors support the view that the Selaginellaceae divide into 2groups (2 genera or one genus divide into 2 sub genera) i. e. Homeophyllumand Heterophyllum, and suggest that Heterophyllum may be subdivided into5 group. On the basis of the ornamentations of spores the relationship inthe family are discuused.
出处
《植物研究》
CAS
CSCD
北大核心
1989年第3期113-131,共19页
Bulletin of Botanical Research
基金
国家自然科学基金
