This name is a synonym of Cystopteris fragilis (L.) Bernh..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26603577) with original publication details: Mém. Acad. Roy. Sci. (Turin) 5: 417 1793.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17072710-1.
This name was in version 1 of The Plant List, record tro-26603577.