Abstract: Sect. Benecinctae Fedde ex C.Y. Wu et T.Y. Shu is an alpine-group of genus Corydalis distribting at the adjoining region of Yunnan, Sichuan and Xizang. It is a quite natural group and differs frorn other groups of Corydalis by its own morphological characters. It was established by Fedde in 1928 (Fedde in Fedde Rep. 25:221, 1928) and afterwards fallen under the grade Subsect. Benecinctae Fedde by the same auther and belonging to his Sect. Eucorydalis Fedde (Fedde in Engler et Prantl, Natural Pflanzenfam. 17b: 134, 1936). Owing to Fedde's Section without a Latin description and some new species discovered in recent years have broken the bounds of Fedde's concept of this Section. It is necessary to rebuild the Fedde's Section and to add Latin description amplifying the contents.

Key words: preliminary, genus, sect., benecinctae

摘要： 伞花紫堇组（Sect. Denecinctae Fendde ex C．Y．Wu et T.Y．Shu）是集中分布在我国云南，四川和西藏接壤地区的特有高山类群，其独特的形态特征在紫堇属中有别于其他各组，是十分自然的一类。1928年Fedde建立本组（Fedde，Repert．25：221，1928），后来他又将它降为亚组（Subsect．Benecinctae Fedde） 置于真紫堇组（Sect．Eucorydalis Prantl）之下（Fedde in Engler et Prantl，Naturl Pflanzenfam．17b：134，1936），鉴于Fedde在建立本组时缺乏拉丁描述，以及近年来的一些新发现已为Fedde原有记载所不能包括，所以作者除恢复 Fedde首次建立的组的等级外还作了拉丁的补充描述。

关键词: 紫堇, 属, 伞花, 研究