This name is a synonym of Adiantum henslovianum Hook. f..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26606787) with original publication details: Sp. Fil. 2: 44, t. 85B 1851.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17013040-1.
This name was in version 1 of The Plant List, record tro-26606787, and has not been changed.