作 者 ：Yang Di-Qing, Zhu Xie-Fu
期 刊 ：植物分类学报 1985年 5期
Keywords:Cycas panzhihuaensis, Karyotype,
Abstract:
This paper reports chromosome number and karyotype analysis of
Cycas panzhihuaensis endemic to China. The material was collected from Dukou, Si-
chuan. It is a diploid species, with 2n=22=2m+4sm+4st+l2t. The karyotype of Cycas
panzhihuaensis is different from that of the other species of the genus Cycas, which
was known to be 2n=4m+8st+10t. The former is a new karyotype in the genus. The
authors briefly discuss karyotype evolution of the genus Cycas in this papar.