被子植物分类依据评述

Review of Classification Basis of Angiosperm

评述了被子植物分类依据。形态学资料应用最广,是被子植物分类的基础,特别是生殖器官的形态特征,但形态分类并不能解决被子植物分类的一切问题。细胞学资料是植物分类的重要补充,它可以解决形态分类难以解决的遗留问题。化学资料可为某些属及属以上的类群演化提供重要线索。现代分子生物学资料能解决植物分类上一些长期争论的问题,特别是一些高级分类阶元的归属问题,对建立系统发育树有重要的帮助。微形态学也给被子植物分类提供有价值的资料。在应用这些资料时,一定要参考形态资料,综合考虑,才能建立一个真正能反映被子植物亲缘关系的分类系统。

The basis of angiosperm classification was elucidated. Morphological data were used widely, which was the basis of angiosperm classification, especially the morphological characteristics of genitalia. However, morphologiC classification Could not solve all the problems in angiosperms classification. Cytology data was an important supplement for classification of plant, which could solve the remaining question that the morphologic classification difficult to solve. Chemical data offered important clue for the evolvement problems of some genera and Upwards, modern molecular-biology information could solve some long-controversial problems in plant classification, especially the ascription problem of some high classification steps, and had great help to build system develop tree. Micromorphology also provided yaluable information for the taxonomy of angiosperm classification. Classification was the instrument, and the aim was using. When using these data, morphologic data should be consulted with comprehensive consideration, and the classification system could be constructed and really reflect the relative relationship of angiosperm.