Phreatia densiflora (Blume) Lindl. var vietnamensis Aver.
S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 35 km to NE from Dalat city. Closed primary broadleaved mt forest along stream canyon on W macroslope of Gia Rinh mt. ridge at 1500 m alt. (N 12° 09′, E 108° 41′). Epiphyte on mossy stems of large trees along stream. Not common. VH 2885 19.03.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)