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A new species of Hypodematium (Polypodiaceae, Hypodematioideae) from a limestone cave in Thailand

PUTTAMON PONGKAI, LI-BING ZHANG, ROSSARIN POLLAWATN

Abstract


A new fern species, Hypodematium boonkerdii (Polypodiaceae subfamily Hypodematioideae), is described and illustrated from a limestone area in northeastern Thailand. It is distinguished from its closest relative, H. crenatum, by having a membranous lamina texture, sessile or subsessile pinnae and only one sorus per pinnule segment.


Keywords


Ferns, Hypodematiaceae, Loei Province, Pteridophytes, Thailand

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DOI: http://dx.doi.org/10.11646/phytotaxa.286.3.7

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand