摘要
本文根据猪屎豆属植物的外部形态和细胞染色体特征以及地理分布特点,论述了该属植物的起源、发展和迁移等问题;并运用组相似性和种相似性分析方法,论证了非洲、马达加斯加和印度之间,以及印度与其在亚洲的邻近地区之间在种类组成上的共有关系和亲缘关系。本文还侧重于该属植物在云南的分布格局,提出它们从印度向中国散布的可能存在路线。
This paper, based on the morphological and phytogeographical characters, deals with origin, development and distribution of Crotalaria. Using analytical method of sectional and specific similarity, we have discussed the sharing and affinity relationship in the specific composition between Africa (included Madagascar) and India; India and its neibouring areas. And also the phytogeographical affinities of Crotalaria in Yunnan are discussed. The facts that the high similarity of specific composition showed between India and its neihouring areas(China 72%, Yunnan Province of this country 91%, Parkistan 90%, Indochina 88%, Indonesia(Java)84%)and that in these areas, the species are sharing with those of India except endemic species, suggest the species existed on the neibouring areas of India are probably distributed from India. The plants of Crotalaria are mostly distributed in S. and SE. Yunnan. By this distributive pattern, two dispersal lines are proposed. The first is the main one, i. e. from India→S.Burma→S. Yunnan (China); and the second is from NE. India→Centre of Burma→W. Yunnan(the region of Hengduan Mountains, Yunnan Tibet Border, China).
出处
《武汉植物学研究》
CSCD
1991年第2期141-147,共7页
Journal of Wuhan Botanical Research
