Euphorbiaceae Juss. Homonoia riparia Lour. S. Vietnam, Prov. Kontum. Evergreen primary forest at 600 m along Dak Mek river at 820 m alt. near Muong Hoong village. Tree or shrub near 3 m high along stream. VH 1047 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