FLORA OF VIETNAM Orchidaceae Eria boniana (Gagnep.) Tang et Wang
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. On sheer rock face in deep shade. Outer tepals dull, light, clear green, rostellum lighter green, lip light pink-red at opening, deep red-pink alongs keels, with deep red-pink spot at base of throat. Occasional.