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Studies in the recent new genus record Pseudostachyum (Poaceae: Bambusoideae) from Thailand: notes on its taxonomy, distribution and habitat


S. Sungkaew, Dept of Forest Biology, Faculty of Forestry, Kasetsart Univ. Center for Advanced Studies in Tropical Natural Resources, Kasetsart Univ., TH-10900 Bangkok, Thailand. SS also at: Kasetsart Univ. Center of Excellence on bamboos, TH-10900 Bangkok, Thailand. E-mail:


A taxonomic review of the genus Pseudostachyum Munro in Thailand is presented including a description of its morphology, geographic distribution and habitat. An illustrated description of the newly recorded species P. polymorphum Munro, discovered in Thailand, is provided and a doubtful species, P. wakha Brandis ex Camus, is reduced to a synonym of P. polymorphum.