This name is a synonym of Metrosideros umbellata Cav..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 123761) with original publication details: Fl. Ins. Austr. 38 1786.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:598008-1.
This name was in version 1 of The Plant List, record kew-123761, and has not been changed.