Asplenium delavayi (Franch.) Copel. N. Vietnam, Prov. Quang Binh, distr. Minh Hoa, 72 km to NWW from Dong Hoi, municipalite Thuong Hoa, Yen Son village, limestone massif Ke Bang (N 17°40′ E 105°57′). Broadleaved evergreen primary dry closed forest on steep slopes and bluffs of limestone mesas and ridges at 450 m alt. Epilitic herb on vertical shadow limestone bluffs. Not common. VH 4824 18.05.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)