FLORA OF VIETNAM Orchidaceae Holcoglossum flavescens (Schltr.) Z.H.Tsi
Nghe An Prov., Ky Son Distr., Na Ngoi Municipality, north-eastern slopes of Phu Xai Lai Leng mountain system.
Primary very humid broad-leaved forest with Cunninghamia konishii as emergent on steep mountain slopes composed of gray shale at elevation 1500-1800 m a.s.l. around point 19°13′52.9″N 104°05′30.5″E.
Fl. et coll. under cultivation at 2 April 2014 Flowers odorless; sepals and petals white, lip white, side lobes with purple longitudinal marks, median lobe with yellow verrucosity at center, column white, anther light yellowish, column foot white with small pink-purple marks. L.Averyanov