FLORA OF VIETNAM Orchidaceae Bulbophyllum umbellatum Lindl.
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. Epiphyte. Tepals dull yellow-green with red speckles inside. Occasional.