Taxonomy of the fern genus Leptochilus Kaulf. (Polypodiaceae)

SHI Lei, ZHANG Xian-Chun

Received:1900-01-01 Revised:1900-01-01 Online:1999-03-10 Published:1999-03-10
Contact: SHI Lei

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.

Key words: Leptochilus, Taxonomic revision

SHI Lei, ZHANG Xian-Chun. Taxonomy of the fern genus Leptochilus Kaulf. (Polypodiaceae)[J]. .

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