中国春黄菊族植物叶表皮结构的研究

本文对分布在中国的春黄菊族(Anthemideae)中的25属98种植物叶的表皮结构进行了观察。1.毛状体的类型适于作为本族自然群、属、亚属、组或系的分类特征。2.轴型、半平列型和螺旋型等复合结构的气孔适于作属以下各单位的分类依据。3.表皮细胞的大小、气孔的保卫细胞长度和 T 型-毛的顶端长度等,这些只是数量特征,在本族分类上意义不大。

STUDIES ON THE STRUCTURE OF LEAF EPIDERMIS OF CHINESE ANTHEMIDEAE

This paper presents a survey of the types and distributions of the stomata and trichornes of leaves from Chinese 98 species(belonging to 25 genera)of Anthemideae.The results are shown as follows: 1.The types of trichome are specific for the taxonomical characters of a grex in one case, for a genus in another,or for a subgenus,section or series elsewhere.2.Polocytic,hemicytic and helicocytic stomatal complexes fit best for the characterization of groups of species on dif- ferent levels between series and genus.3.The sizes of epidermis cell,the lengths of stomatal guard cells and of the terminal cells of T-hair are only quantitative characters,but not of much significances in systematics.