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 6451) with original publication details: Ann. Sci. Nat., Bot. II, 15: 207 1841.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:77075056-1.
This name was in version 1 of The Plant List, record kew-6451, and has not been changed.