作 者 ：Wang Jin-Wu, Yang Ji, Li Mao-Xue
期 刊 ：植物分类学报 1988年 3期
Keywords:P.odoratum, Mophological variation, Karyotype, Taxonomy,
Abstract:
This paper deals with the morphological and cytological variation in various forms
of P. odoratum complex. A quantitative analysis on the correlation between some diagnostic
characteristics was also made with pictorialized scatter diagram and histogram. The results
show that the presence or absence of angles on stems is closely correlated with smooth or
verrucate lower surface of leaves and the position of stamens (above or below the middle). With
chromosome numbers, they heve 2n=18 and 2n=20 respectively. It is suggested to treat them
as two distinct species and restore P. simizui Kitag as species status.