Polypodium longifrons Hook. & Grev., Icon. Filic.: pl. 65. 1831 Polypodium longifrons Hook. & Grev., Icon. Filic.: pl. 65. 1831Isotype: Wallich 274 (BM)Type: Wallich 274 (K)Type: Wallich 274 (L)Taxon for this namePolypodium longifrons Hook. & Grev., Icon. Filic.: pl. 65. 1831