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

Abstract

Abstract: 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 chromosomecounts in C. yunnanensis and C. foetida var. velutina are reported here for the first time.

Key words: Cimicifuga, C.foetida, Karyomorphology, Cytogeography

YANG Qin-Er. Karyomorphology of four species in Cimicifuga (Ranunculaceae) from China, with some cytogeographical notes on C. foetida[J]. J Syst Evol, 1999, 37(5): 433-444.

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

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