FLORA OF VIETNAM Orchidaceae Ornithochilus difformis (Wall. ex Lindl.) Schlechter
N. Viet Nam. Ha Giang Province, Quang Ba District, at Sin Suoi Ho village on east side of Sin Suoi Ho river. Degraded forest along north ridge slope. Limestone substrate and exposed rock outcrops at elev. about 1000-1100 m. 23°06′57′'N, 105°01′48′'E. Epiphytic. Rare.