FLORA OF VIETNAM Orchidaceae Cephalantheropsis obcordata (Lindl.) Ormerod
N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Thanh Son Municipality, middle part of Pu Luong range, E slopes of Phu Pha Phong peak around point 20°28′32′'N, 105°05′35′'E. Primary evergreen seasonal broad-leaved closed submontane forest on basalt at elev. 1550-1600 m. Terrestrial herb up to 1.2 m tall. Flowers: tepals yellow, lip yellowish-white. Occasional.