Fagaceae Dumortier Quercus helferiana A.DC. S. Vietnam, Prov. Kontum. Open dry forest with Lithocarpus and Pinis khasya on S slope of Ngoc Linh mountain system at 1000 m alt. on elevation from Muong Hoong village. Tree near 6-12 m high. Dominant in dry forests on S slopes at 800-1100 m alt. VH 1072 31.03.1995 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