Polypodiaceae s.l. Cyclosurus sp. S. Vietnam, Prov. Kontum. Evergreen primary forest at 600 m along Dak Mek river at 820 m alt. near Muong Hoong village. Terrestrial fern with fronds up to 0.8 m lg. in wet places along stream. Common. VH 1046 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