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

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

YANG Qin-Er

Received:1900-01-01 Revised:1900-01-01 Online:1999-09-10 Published:1999-09-10
Contact: YANG Qin-Er

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 num-

ber 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.

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]. .

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

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