by Kongkanda Chayamarit(Royal Forest Department, Bangkok (Thailand). Forest Herbarium), Thawatchai Santisuk(Royal Forest Department, Bangkok (Thailand). Forest Herbarium), Peter van Welzen, Kai Larsen(Rijksherbarium/Hortus Botanicus, Leiden (Netherlands)), Esser, Hans J.(Hamburg, (Germany)), Weerachai Nanakorn(Queen Sirikit Botanic Garden, Chiang Rai (Thailand)), Pranom Chantharanothai(Queen Sirikit Botanic Garden, Chiang Rai (Thailand)), Teerawat Boonthavikoon(Royal Forest Department, Bangkok (Thailand). Forest Herbarium), Rachan Pooma(Royal Forest Department, Bangkok (Thailand). Forest Herbarium), Leena Phuphathanaphong(Royal Forest Department, Bangkok (Thailand). Forest Herbarium), Chirayupin Chantharaprasong(Royal Forest Department, Bangkok (Thailand). Forest Herbarium), Larsen, Supee(Aarhus University, (Denmark). Department of Systematic Botany)
Year of Publication 2001