Orchidaceae Juss. Agrostophyllum callosum Reichenb.f. S. Vietnam, Prov. Kontum. Evergreen dry primary forest at 1700-1900 m alt. on NW slope of Ngoc Linh mountain system above Long Nam village. Epiphyte near top of ridge at 1900 m alt. VH 1160 04.04.1995 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