%A Li Linchu %T A STUDY ON THE KARYOTYPES AND EVOLUTION OF DYSOSMA PLEIANTHA WlTH ITS RELATIVES %0 Journal Article %D 1986 %J Plant Diversity %R %P 1-3 %V 8 %N 04 %U {https://journal.kib.ac.cn/CN/abstract/article_32323.shtml} %8 1986-08-25 %X The present paper deals with the cytological invcstigation of Dys- osma pleiantha (Hance) Woodson, which is a chinese medicine and endemic to China. The karyotype of the specics is reported here for the first time. Accor- ding to the terminology defined by Levan et al. the karyotype formula is K(2n) =8m(2SAT) + 2st(SAT) + 2t. It belongs to "2A" of Stebbins' karyo- typic symmetry and is generally regarded as a more primitive one. Measure- ments of the chromosome complement and the idiogram of the karyotype are given in Table l and Fig. 2 respectively.