J Syst Evol ›› 1996, Vol. 34 ›› Issue (2): 180-193.

• Research Articles • Previous Articles     Next Articles

On the Genus Athyrium Ser. Epiraches Ching et Y. T. Hsieh ex Y. T. Hsieh

Zhang Xian‐chun   

  • Published:1996-03-18

Abstract: This paper,third in the series of an account of the genus Athyrium in China, presents a revision of the series Epiraches Ching et Y.T.Hsieh ex Y.T.Hsieh.A total of 11 species are recognized from China,and more than 20 names are reduced to synonyms in the present paper.Ser.Epiraches is anatural group in Athyrium,it is distinguished from all the other groups of the genus by its Asplenioid sori and indusia,The series is entirely Asian tropical,subtropical and primarily montane.Its northern limits in central and eastern China are not beyond the Yangtze River.Southwestern part and Taiwan of China and Japan Islands are centers of diversity for the series,each with more than five species.Some speciesare disjunctly distributed in southwest China-Taiwan-Japan;one species(Athyrium roseum) occurs discontinuously between Yunnan and Taiwan;one endemic to Hainan(A. hainanense)is the only representative of Athyrium on the island.All members of this series grow in evergreen broad-leaf forests,generally from 500 to 1800 m above sea level.A key to the species,and illustrations of the middle pinnae from different specimens are provided.

Key words: Athyrium, Ser. Epiraches, Taxonomy, Distribution