Vietnam, Lam Dong Prov., Lac Duong Distr., Da Chais Municipality, around point 12º06’44’N 108º39’27’’E, at elevation 1800-2000 m a.s.l. along main ridge and on W slope of Bi Doup mt. Primary broad-leaved closed wet forest. Epiphyte on mossy trees. Flowers light yellowish to orange. Occasional.