中国及泛喜马拉雅地区紫金牛属（报春花科）的分类学研究

紫金牛属是报春花科中最大的属之一，广泛分布于泛热带。中国南部和中南半岛地区是本属的物种多样性中心之一。中国及泛喜马拉雅地区约有100种。紫金牛属分类学难度较大，一方面因为种类繁多且分布广泛；另一方面，已出版的植物志均由不同国家分别完成。由于历史条件的限制，野外采集不全，标本资料有限，造成分类学上的混乱。另外，在华南亚热带山地、喜马拉雅山边境地区，存在诸多区系调查的薄弱地区，部分种类被长期混淆或错误鉴定，且近年仍不断有新分类群发表。对本属属下分类群的划分和亲缘关系目前也缺乏统一的认识。本项目拟对中国和泛喜马拉雅地区的紫金牛属植物开展全面的分类学修订。项目将基于传统的基于形态学性状的分类学方法，详细查阅国内外馆藏植物标本，并开展广泛的野外观察，订正本地区各分类群；开展细胞学、孢粉学研究，并结合DNA条形码的研究手段，分析属下各类群的系统发育关系。通过这些研究，解决紫金牛属的分类学存在的问题。

The genus Ardisia is one of the largeset genera of Primulaceae, which is widely distributed in the pantropical region. South China and Indochina is one of the species diversity center of this genus. Approximately 100 Arsisia species occur in China and the Pan-Himalayan regions. Difficulty of taxonomy of this plant group remains, one reason is due to its large number of species and wide distribution; on the other hand, each published regional flora was completed by authors from different countries. Because of the limitation of the restriction of historical condition, wild collections were incompleted and herbarium specimens are insufficient, which resulted in many taxonomic confusions. Meanwhile, floristic investigations in mountainous regions in southern China and border areas of Himalaya are weak, some species have been confused or erroneously identified for long time, and new taxa have been reported constanly. Infrageneric grouping and phylogenetic relationships are also uncertain. This project is to study the taxonomy of Ardisia in China and Pan-Himalayan regions. Traditional methods based on morphology will be employed, including literature searching, detailed herbarium examination, and extensive filed investiations. By incorporating cytological, palynological data, and DNA barcoding, we analyse the interspecific relationships and species delimitation, which will be implemented towards a taxonomic revision of the eastern Asian Ardisia.