菊科紫菀族的系统发育与分类研究

本文对紫菀族（菊科，Ａｓｔｅｒｅａｅ）的系统发育与分类进行了分支系统学研究。结果表明，Ｇｒａｎｇｅｉｎａｅ亚族是该族原始类群；其余属群可以分为两大亚族，即：一支黄花亚族（Ｓｏｌｉｄａｇｉｎａｅ）和紫菀亚族（Ａｓｔｅｒｉｎａｅ）。分支图还清楚地揭示出分布在世界各大洲的紫菀族植物在系统发育上的密切联系，据此可以摒弃先前的研究者Ｇｒａｎ（格劳）仅按照地理分布这个单一的性状对紫菀族所作出的不正确的分类。

Phylogeny and Classification of the Tribe Astereae(Asteraceae)

The tribe Astereae has been analysed cladistically by means of a computerized parsimony program(Hrnnig86),using the Anthemideae as out-group.24 representative genera were sampled from 23 generic groups in the whole tribe as terminal taxa; 26 morphological characteric were chosen with a great care for the analysis. The results of the analysis are presented on a con-sensus tree and one cladogram. The cladorgam are 60 steps long,with a con-sistency index of 0.67 and a retention index of 0.72.Three major monopyletic subtribes can be recognized:The Grangeinae subtribe(9 genera), the Sol-idagininae subtribe(46 genera),the Asterinae subtribe(117 genera),the lat-ter including the Bellidinae, Hinterhuberinae,Conyzinae,and Baccharidinae,these four subtribes are derived within the Asterinae,and hence reduced to synonymy. Key to three subtibes were given;Several intercontinental relation-ships indicate that a geographical subdivision of the tribe should be abandoned.