FLORA OF VIETNAM Orchidaceae Eria coronaria (Lindl.) Rchb.f.
Vietnam, Ha Giang Prov., Quan Ba Distr, Can Ty Municipality, about 3 km to NWW of Quan Ba town, around point 23°05′49″N, 105°00′28″E at elevation about 1200 m a.s.l.
Primary mossy cloudy coniferous forest with Pseudotsuga sinensis on tops of high rocky ridge composed with highly eroded marble-like limestone along left side of Mien river.
Lithophyte on mossy rocks. Flowers white, lip side-lobes with deep purple stripes, epichile with yellow center. Very common. Co-dominant of lithophytic herb communities.