S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, in 29-31 km to NNE from Dalat city. Old open secondary dry coniferous mt forest with domination of Pinus kesiya at 1550-1700 m alt. in 8-10 km from Bi Dup main peak to the W (N 12° 07′, E 108° 36′). Epiphyte mostly on Lyonia and Lithocarpus. Rare. VH 3959 14.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)