This name is a synonym of Alnus hirsuta (Spach) Rupr..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 6429) with original publication details: Bot. Not. 128: 505 1975 publ. 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:874723-1.
This name was in version 1 of The Plant List, record kew-6429, and has not been changed.