国产毛茛科升麻属四种植物的核形态研究,并略论升麻的细胞地理(英文)

Karyomorphology of four species in Cimicifuga (Ranunculaceae) from China, with some cytogeographical notes on C. foetida

本文研究了国产四种升麻属植物（ 小升麻、单穗升麻、云南升麻、升麻及其变种毛叶升麻） 的核形态。除发现升麻在云南西北部地区有二倍体和四倍体两种细胞型存在外，其他类群都为二倍体。云南升麻和毛叶升麻的染色体数目和核型为首次报道。

In this paper, four species of the genus Cimicifuga L. from China(C. acerina, C. simplex, C. yunnanensis, C. foetida var. foetida and C. foetida var. velutina) were karyomorphologically investigated. All the taxa studied had the same chromosome number of 2n=16 except for C. foetida var. foetida, in which a tetraploid cytotype was found to occur in northwestern Yunnan. Their karyotypes are all presented. The chromosome counts in C. yunnanensis and C. foetida var. velutina are reported here for the first time.