FLORA OF VIETNAM
Orchidaceae
Oberonia sp.

N. Vietnam, Prov. Quang Binh, distr. Minh Hoa, 72 km to NWW
from Dong Hoi, municipalite Thong Hoa, vicinities of Yen Son village, limestone massif Ke Bang (N 17°40′ E 105°57′). Primary evergreen open broadleaved dry forest on top of limestone mesas at 550-600 m alt.
Epilite on shadow vertical bluffs at 550-600 m alt. Not common,
but occasionally abundant.
VH 4670 16.05.1997
International Botanical Expedition of the U.S.A. National Geographic
Society (grant No 5803-96)

Collectors: L. Averyanov, N.T. Hiep, P.K. Loc