FLORA OF VIETNAM
Plants of Phong Nha - Ke Bang National Park
Orchidaceae
Thrixspermum formosanum (Hayata) Schltr. s.l.

Vietnam, Quang Binh Prov., Minh Hoa Distr., Thuong Hoa Municipality, Yen Hop village, about 1 km to NWW of Ban On village (17°40′21′'N, 105°58′00′'E).

Primary closed evergreen broad-leaved and coniferous lowland forest (with Dacrydium elatum) along rocky ridge composed with solid marble-like highly eroded stratified crystalline limestone at elevation 550-650 m a.s.l.

Epiphyte in small tree canopies (Pistacia cucphuongensis, Memecylon sp., Quercus sp., Pittosporum sp., Osmanthus sp., Rutaceae, Dacrydium elatum, Knema sp.). Not common.

HAL 5996 21 January 2005.

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.