S. Vietnam, Prov. Lam Dong, 31 km to NE from Dalat city, distr. Lac Duong, municipalite Da Chay, vicinities Klong Lanh village (N 12° 08′, E 108° 39′). Closed broadleaved secondary forest rich in primary
elements along small river on NW macroslope of Bi Dup mt system at 1450-1500 m alt. Epiphyte on large trees along stream. Tepals and spur violet, epichile white. Common. VH 2713 16.03.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)
Collectors: L. Averyanov, N.Q. Binh, N.V. Duy, P.K. Loc