This name is a synonym of Polypodium virginianum L..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26604912) with original publication details: Kongl. Svenska Vetensk. Acad. Handl. 8(5): 176 1962.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:207806-2.
This name was in version 1 of The Plant List, record tro-26604912.