FLORA OF VIETNAM Orchidaceae Eria coronaria (Lindl.) Rchb.f.
Vietnam, Ha Giang Prov., Quan Ba Distr, about 2 km to the NE of Quan Ba town, around point 23°05′49″N, 105°01′00″E at elevation about 1150 m a.s.l.
Primary coniferous forest with Calocedrus rupestris, Callitropsis vietnamensis and Pseudotsuga sinensis on rocky highly eroded marble-like limestone remnant mountains.
Lithophytic herb on shady wet rocky mossy slope. Flowers white, lip side-lobes deep purple striped, lip with yellow epichile. Very common. Co-dominant of lithophytic herb communities.