|Pseudostachyum polymorphum Munro|
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.
Distribution and habitat:
The geographic range of P. polymorphum is from tropical to temperate Asia. It is found in highland areas (900–1500 m a.s.l.) of India, Bhutan, China, Burma and Vietnam (Stapleton 1994, Ohrnberger 1999, Xia and Stapleton 2006). We have discovered four additional populations of P. polymorphum in Thailand living at altitudes of 900–1300 m a.s.l. in Phu Rua National Park, Phu Luang Wildlife Santuary, Phu Kradung National Park, Loei pro vince and Phu Hin Rong Kla National Park, Phitsanulok province. This species inhabits only semi-shaded areas, forest edges and gaps of lower montane forest.
Atchara Teerawatananon, Sarawood Sungkaew, Dokrak Marod and Trevor R. Hodkinson. 2014. Studies in the Recent New Genus Record Pseudostachyum (Poaceae: Bambusoideae) from Thailand: notes on its Taxonomy, Distribution and Habitat. Nordic Journal of Botany. DOI: dx.doi.org/10.1111/j.1756-1051.2012.01792.x