关键词: 锦鸡儿属, 分支系统学, 分类系统, 种系发生关系

Abstract: Based on the morphology, chromosome number and pollen morphological characters, a cladistic analysis is presented to reconstruct the phylogeny with respect to Moore (1968) for Caragana. About seventy two species in Caragana are recognized by the author and regarded as OTUs or terminal taxa. The results indicate that the infrageneric classification system could be treated as twelve series and five sections. Of them, Sect. Bracteolatae M. L. Zhang and Sect. Spinosae are erected and combined. Sect. Bracteolatae is treated mainly from Komarov's Ser. Bracteolatas. Sect. Spinosae includes Ser. Acanthophyllae Pojark., Ser. Spinosae Kom. and Ser. Dasphyllae Pojark. According to two evolutionary trends in Caragana, namely, the foliage from pinnate to palmate and the rachis from deciduous to persistent, Moore (1968) properly designed a two dimensional plan phylogenetic scheme of Caragana. In the present paper, Moore's phylogenetic scheme is modified in combination with the cladograms. Sect. Bracteolatae and series of Sect. Spinosae etc. are located in the suitable positions of the modified phylogenetic scheme.Ser. Chamlagu is classified into Sect. Frutescentes, so together with Ser. Frutescentes and Ser. Pygmaeae it forms a clade.

Key words: Caragana