S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 40 km to NE from Dalat city. Closed primary very wet broadleaved forest along stream canyon on SW macroslope of Hon Giao mt. ridge at 1600-1700 m alt. (N 12° 11′, E 108° 43′). Terrestrial herb on shadow steep river canyon slopes. Flowers odourless, white, tepals with purple-violet stripes and rose-violet tips, epichile yellow with deep purple marks. Not rare. VH 4395 26.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)