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 50070812) with original publication details: Syn. Fl. Germ. Helv. (ed. 2) 2–3: 980 1845.
This name was in version 1 of The Plant List, record tro-50070812.