Polypodium pentaphyllum Baker in Ann. Bot. (London) 5: 478. 1891 Polypodium pentaphyllum Baker in Ann. Bot. (London) 5: 478. 1891Isotype: Wallis s.n. (K)Type: Wallis s.n. (MICH)Taxon for this namePolypodium pentaphyllum Baker in Ann. Bot. (London) 5: 478. 1891