中文摘要：

裂萼苔属Chiloscyphus,异萼苔属Heteroscyphus及齿萼苔属Lophocolea是地萼苔科（Geocaly-caceae）中亲缘关系非常接近的三个属,由于植物体特征变化极大,且缺乏足够的分类修订研究,长期以来它们的系统分类地位和属间关系存有很大争议,属及某些种的概念和界线极其模糊.亚洲为该类群的分布中心之一,目前对该类群的分类学研究也不够深入全面.故拟通过文献考证法、经典分类学方法并结合形态特征和数量分类,必要时利用分子系统学的方法对这一类群进行一次较为详尽的分类修订.

英文摘要：

Chiloscyphus, Heteroscyphus, and Lophocolea are three very close generas which all belong to the family Geocalycaceae. There is much controversy on their taxonomic relationships for a long time, and the concepts and boundaries of generas and certain species are very fuzzy, which due to great variation in plant characteristics, and insufficient research on taxonomic revision. Asia, one of the distribution centers of this group,the research on the taxonomic revision about this group is not enough profound or comprehensive at present. Therefore, the paper has conducted a more taxonomic revision by both classical and numerical taxonomical methods as well as the molecular results.