国产堇菜属（Viola）植物的数量分类学研究

应用聚类分析的方法对国产堇菜属植物进行了数量分类研究，根据结合水平探讨了堇菜属中亚属和组的划分，发现须毛柱头亚属和二裂花柱亚属作为同一亚属的不同组处理更为合理．堇菜亚属中多数组的划分与传统分类的结果相一致，但裂叶堇菜组和阔鞘堇菜组应合并到合生托叶组中，鳞茎堇菜复合群最好分出另立一组．根据聚类分析结果，并结合形态学特征和地理分布式样的分析，确认西山堇菜和维西堇菜实属同一个种，块茎堇菜作为一个独立的种是成立的

Numerical taxonomic study of Viola in China

Cluster analysis of 38 species of the genus Viola from China are undertaken.The dendrogram indicates that Subgen. Chamaemelanium and Subgen. Dischidium should be treated as two sections in one subgenus.The result of cluster analysis supports the treatment of most sections in Subgen. Viola, but Sect. Dissectae and Sect. Vaginatae are included into Sect. Adnatae, and V.bulbosa Maxim.complex should be treated as a section.Cluster analysis as well as the characters of morphology and geographical distribution also show that V.hancockii W.Beck.and V.monbeigii W.Beck.are the same species. V.tuberifera Franch.as a species should be accepted.