This name is a synonym of Adiantum myriosorum Baker.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26617687) with original publication details: Bull. Acad. Int. Géogr. Bot. 13(173): 110–111 1904.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:325051-2.
This name was in version 1 of The Plant List, record tro-26617687.