Abstract:We have found some special cytoplasmic inclusions which possessed a number of structural characteristics, including the high electron-density, very large size, round shape or approximately round shape, absence of a limiting membrane, and often near the in

Abstract:本文报道了毛泡桐,白花泡桐和兰考泡桐的体细胞染色体数目均为2n=40。这与已报道的紫葳科大多数木本植物染色体数目是一致的,而与玄参科的大部分届不同。结合形态特征,认为将泡桐属归于紫葳科可能是更为合理的。并对白花泡桐和兰考泡桐的核型进行了初步分析。

Abstract:This paper reports chromosome number and karyotype analysis of Helleborus thibetanus Franch. endemic to West China for the first time. The result of karyotype analysis of the materials collected from Taibai mountain in Shaanxi Province shows that the kary