This name is a synonym of Adiantum braunii Mett. ex Kuhn.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26621448) with original publication details: Linnaea 36: 75 1869.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:4869-2.
This name was in version 1 of The Plant List, record tro-26621448.