This name is a synonym of Blechnum gracile Kaulf..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26607670) with original publication details: Hort. Berol. 2: 75 1833.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17059320-1.
This name was in version 1 of The Plant List, record tro-26607670.