This name is a synonym of Nothofagus pumilio (Poepp. & Endl.) Krasser.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 83881) with original publication details: Nov. Gen. Sp. Pl. 2: 68 1838.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:295622-1.
This name was in version 1 of The Plant List, record kew-83881, and has not been changed.