作 者 ：SHI Lei, ZHANG Xian-Chun
期 刊 ：植物分类学报 1999年 2期
Keywords:Leptochilus,
Abstract:
Leptochilus is a small microsoroid genus in Polypodiaceae. The circumscription of
this genus was quite ill-delimited and its species were once referred to Paraleptochilus, Den-
droglossa, Myuropteris and Nistarika. Most recently, species of the genus Colysis were in-
corporated in it, resulting in more confusion in its taxonomy. During the preparation of an
account for Flora of China, we made an analysis of the major morphological characters, geo-
graphical distribution, as well as the spore morphology of this genus. We found that Lep-
tochilus and Colysis are obviously different in the pattern of their sori and thus the latter
should be treated as an independent genus, but the four genera, i.e. Paraleptochilus, Den-
droglossa, Myuropteris and Nistarika, cannot be accepted and are here reduced to syn-
onyms of Leptochillus.