FLORA OF VIETNAM
Orchidaceae
Epipactis alatus Aver. et Efimov, sp.nov., Type.

Vietnam, Ha Giang Prov., Meo Vac Distr, Sung Tra Municipality, vicinities of Ta Cha Lang village around point 23°10′12″N, 105°17′39″E at elevation about 1100-1150 m a.s.l. Highly degraded remnants of coniferous forest with Tsuga chinensis on very steep rocky slope of rocky remnant ridge composed with highly eroded marble-like limestone. Terrestrial herb on very steep shady rocky slope. Tepals light pink, lip purple-violet, epichile with yellow center, hypochile with yellow center and numerous small deep brown warts, column and anther pure white. Very rare.
HAL 8513 11 Dec 2005. Photo.
Collectors: L.Averyanov, P.K.Loc, T.V.Thao, P.V.The, N.S.Khang.