This name is a synonym of Polypodium virginianum f. brachypteron (Ridlon) Fernald.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26605188) with original publication details: Amer. Fern J. 11: 122 1922.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:207782-2.
This name was in version 1 of The Plant List, record tro-26605188, and has not been changed.