安徽省种子植物多样性的研究

安徽省有种子植物２４９８种，隶属于８９８属，１６３科，其中裸子植物６科、１３属、１８种；单子叶植物２６科、２１１属、５９３种；双子叶植物１３１科、６７４属、１８８７种。安徽植物区系隶属于华东植物区和华北植物区，基本上属于温带性质，特有现象较明显，地理联系主要与东亚联系密切，水平与垂直替代现象也较明显。此区系起源时间不晚于第三纪。安徽植物区系可以划分为５个小区：皖南山地小区，大别山山地小区，沿江江淮

STUDY ON THE DIVERSIFIED SPERMATOPHYTES OF ANHUI PROVINCE

It is first published that there are 2,498 species of seed plants in Anhui Province, which belong to 898 genera and 163 families (not including cultivated plants and varieties). Among them there are about 6 families, 13 genera, 18 species in Gymnospermeae; 26 families, 211 genera, 593 species in Monocotyledoneae and 131 familes, 674 genera, 1,887 species in Dicotyledoneae. Anhui flora belongs to the flora region of East China and one of North China. It is basically temperate in nature and has a certain endemic elements, and it is chiefly related with E. Asia in geographical relationships. It is obvious in horizontal and vertical vicariance. The flora origin is not after the Tertiary Period. Anhui flora may be divided into 5 districts: South Anhui mountainous district, Dabie mountainous district, the Yangtze River valley and Jiang-huai hilly district, the Northern Huai River plain district and the Northern Huai River hilly district.