S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Primary broad-leaved and mixed (with Dacrydium and Dacrycarpus) evergreen dry mountain forest at elev. about 1100-1200 m on sandstone. Terrestrial herb up to 15 cm hg in shady steep slope along streamlet. Leaves above deep green, below deep violet. Rare.
VH 5497 21.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)