国产大头茶属的分类处理

Taxonomic Treatment of Chinese Polyspora Sweet （Theaceae）

摘要:

东亚·北美间断分布的大头茶属Gordonia不是一个单系类群，北美和东亚的种类应该处理成两个不同的属，东亚（包括中国）的种类应该使用Polyspora这一属名。根据最新的研究结果对产自中国的该类植物作了正式的分类学处理。

Abstract:

A taxonomic treatment of Polyspora Sweet （Theaceae） from China is given, based on the latest available data on DNA and morphology. It is revealed that Gordonia Ellis s. 1. is not a monophyletic group. The species from North America and from East Asia should be separated into two different genera, Gordonia Ellis s. str. and Polyspora Sweet, respectively. All Chinese species formerly placed in Gordonia are transferred to Polyspora and seven new combinations are proposed.