Polypodiaceae s.l. Microsorum sp. S. Vietnam, Prov. Kontum. Evergreen dry primary forest at 2000 m alt. on top of ridge on NW slope of Ngoc Linh mountain system above Long Nam village. Epiphyte. Locally abundant. VH 1123 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