This name is a synonym of Tsuga canadensis (L.) Carrière.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 379469) with original publication details: Bibl. Cult. Trees 647 1949.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:260293-2.
This name was in version 1 of The Plant List, record kew-2521624.