This name is a synonym of Adiantum chilense var. hirsutum Hook. & Grev..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26606806) with original publication details: Amer. Fern J. 47(4): 141 1957.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:5032-2.
This name was in version 1 of The Plant List, record tro-26606806.