This name is a synonym of Adiantum aleuticum (Rupr.) C.A. Paris.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26609169) with original publication details: Canad. J. Bot. 56(15): 1727–1729, f. 1–3 1978.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:5019-2.
This name was in version 1 of The Plant List, record tro-26609169.