Studies and Collection of Ferns and Their Allies in the Phu Wiang National Park, Khon Kaen Province

Abstract

Studies and collection of ferns and fern allies in the Phu Wiang National Park, Khon Kaen province were carried out at Phu Wiang, Si Chomphu and Chum Phae districts during July, 2000 to September, 2003. The results were reported the number of ferns and fern allies with 11 families, 17 genera and 25 species namely Psilotaceae (1 genus 1 species, Psilotum nudum (L.) Beauv.) as fern allies, Ten families of ferns with 16 genera 24 species as follows : Aspleniaceae (1 genus 1 species, Asplenium pellucidum Lamk), Davalliaceae (1 genus 1, Davallia denticulate (Burm.f.) Mett. ex Kuhn), Dorypteridaceae (1 genus 1 species, Tectaria impressa (Fee) Hollt.), Oleandraceae ( 1 genus 1 species, Oleandra undulate Ching), Parkeriaceae (3 genera 4 species, Adiantum erylliae C. Chr. &Tard., A. philippinse L., Cheilanthes belangeri (Bory) C. Chr., Doryopteris ludens J. Smith and Hemionitis arifolia Moore), Polypodiaceae (4 genera 9 species, Drynarin bonii Christ, D. quercifolia (L.) J. Sm., D. rigidula (Sw.) Bedd., Microsorum punctatum (L.) Copel, Platycerium wallichii Hook, Pyrrosia adnescens (G.Forst,) Ching, P. piloselloides (L.) M. G. Price and P. stgmosa (Sw.) Ching), Pteridaceae (1 genus 3 species, Pteris biaurita L., P. ensiformis Burm, f. and P. vittata L.), Schizaeaceae (1 genus 2 species, Lygodium flexuosum (L.) Sw., L. polystachyum Wall. ex Moore); Thelypteridaceae 1 genus 1 species, Thelypteris interrupta (Willd.) K. lwats.) and Vittariaceae (1 genus 1 species, Vittaria ensiformis Sw. All of them are described to be used as the key to identify species genera and for ornamental plants.