S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Primary evergreen broad-leaved wet forest on steep mt. slopes on sandstone & gneiss at elev. 1000-1200 m. Terrestrial herb (or shrublet) about 20-30 cm hg in wet shady place along stream. Flowers white, lip yellow with purple stripes. Not common.
VH 5142 15.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)