Polypodiaceae s.l. Phymatosorus sp. S. Vietnam, Prov. Kontum. NW slopes of Ngoc Linh mountain system at 1200 m alt. near Ngoc Linh village. Secondary marshland with grasses and shrubs. Terrestrial fern with fronds up to 1.5 m length. VH 001 23.02.1995 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