This name is a synonym of Adiantum capillus-veneris f. rimicola (Sloss.) Fernald.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26603097) with original publication details: Bull. Torrey Bot. Club 41(5): 308–309, pl. 7, f. 1 1914.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:5053-2.
This name was in version 1 of The Plant List, record tro-26603097, and has not been changed.