This name is a synonym of Adiantum digitatum Hook..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26606816) with original publication details: Sp. Fil. 2: 45, t. 85C 1851.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:319722-2.
This name was in version 1 of The Plant List, record tro-26606816.