S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 26-28 km to NE from Dalat city. Old open secondary dry coniferous mt forest with domination of Pinus kesiya at 1600-1750 m alt. in 8-10 km from Bi Dup main peak to the NW (N 12° 07′, E 108° 36′). Epiphyte on mossy stems of old trees on tops of hills. Not common, but occasionally abundant. VH 4091 19.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)