无患子科三个单种属植物的染色体计数

Chromosome Counts of Three Monotypic Genera in Sapindaceae

摘要:

报道无患子科（Sapindaceae）3个单种属植物的染色体数目，其中掌叶木属和茶条木属为首次报道。掌叶木属（Handeliodendron Rehd．）、茶条木属（Delayaya Franch．）、伞花木属（Eurycorymbus Hand．-Mazz．）植物的染色体数目分别为2n=40，28和26，且它们的染色体皆为小染色体。

Abstract:

The chromosome numbers of 3 monotypic genera in Sapindaceae are reported. The chromosome numbers were determined to be 2n=40 for Hondeliodendron Rehd., 2n=28 for Delavaya Franch., and 2n=26 for Eurycorymbus Hand.-Mazz.. All the chromosomes of the three genera are small in size. Chromosome numbers of Handeliodendron Rehd. and Delavaya Franch. are reported for the first time.