Studies of Vietnamese Pteridophyte Flora 1

The history of the study on pterido-flora in Vietnam is reviewed. Two new records, Adiantum capillus-junonis and Actinostachys wagneri are reported for Vietnam based on our new collections. A new species, Hymenophyllum bryoides, is described to accommodate its morphological and genetic distinctiveness from other congeneric species. Photographs of key characters, distributions, ecology, and notes on all the above species are provided.