我国五种石荠苧属植物的染色体计数

CHROMOSOME COUNTS OF FIVE SPECIES OF CHINESE MOSLA

本文报道了我国五种石荠苧属Mosla植物的染色体计数结果,均为2n=18。其中三种为首次报道。

The genus Mosla, which comprises altogether over 20 species, is cytotaxonomically poorly known and chromosome counts of only 3 species have heretofore been reported. The present paper being a part of the biosystematic research of Mosla occurring in the Yangtze Delta, embodies the results of a study of the chromosome numbers (see table) of the five species. The vouchers are preserved in the Herbarium of Department of Biology, Fudan University, Shanghai. The chromosome numbers of the five species of Mosla examined are all found to be 2 n=18, of which M. soochowensis Matsuda, M. chinensis Maxim. and M. hangchowensis Matsuda are reported for the first time. It is assumed that the basic number of the genus is x=9.