Fagaceae Dumortier Quercus langbianensis Hickel et A.Camus S. Vietnam, Prov. Kontum. NW slopes of Ngoc Linh mountain system. Common in evegreen primary close forest at 2000-2300 m alt. Tree up to 20 m high. VH 509 06.03.1995 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, N. Q. Binh, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, N.X. Tam, G. Yakovlev