The specimens of the genus Prosaptia C. Presl (family Grammitidaceae) stored in the Herbarium of VNU University of Science (HNU) were studied. Traditional morphological methods are used to study the specimens. | VNU Journal of Science: Natural Sciences and Technology, Vol. 35, No. (2019) 1-6 Original article Prosaptia contigua C. Presl (Grammitidaceae), a New Record for Vietnam Nguyen Cong Toan1,*, Nguyen Trung Thanh2, Phan Ke Loc2 Faculty of Biology, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam Received 29 February 2019 Revised 13 March 2019; Accepted 14 March 2019 Abstract: The specimens of the genus Prosaptia C. Presl (family Grammitidaceae) stored in the Herbarium of VNU University of Science (HNU) were studied. Traditional morphological methods are used to study the specimens. The result provides descriptions, illustrations and comparisons of 6 species that listed of the genus Prosaptia follow as: P. alata, P. barathrophylla, P. intermedia, P. pectinata, P. obliquata and P. contigua. Prosaptia contigua (G. Forst.) C. Presl has been determined as a new record for the flora of Vietnam. Keywords: Genus Prosaptia, Grammitidaceae, new record for the flora of Vietnam, Prosaptia contigua. 2010 Phan . showed that Vietnam has only 1 species, P. urceolare (Hayata) Copel. [3]. Until recently, the taxonomic concepts of grammitid ferns have been changing considerably under the light of molecular phylogeny. Ctenopteris Blume ex Kunze, Grammitis Sw. . and Xiphopteris Kaulf. formerly widely used names for grammitid ferns, but are now considered to be unsatisfactory artificial genera based on frond dissection. Recent developments in Old World grammitid taxonomy have centred on describing new genera based upon additional morphological characters and two of the three old genera are no longer recognized. The type species of Ctenopteris has been transferred to Prosaptia C. Presl [4]. In the genus Prosaptia of Vietnam have five-species that were 1. Introduction Grammitidaceae is a family of ferns that distributed mainly in Southeast Asia, including Vietnam. In 1941, Tardieu-Blot . and Christensen C. showed that Vietnam has 4 species belonging .
