This name is a synonym of Psidium australe var. argenteum (O.Berg) Landrum.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 166695) with original publication details: Fl. Bras. Merid. 2: 285 1832.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:600787-1.
This name was in version 1 of The Plant List, record kew-166695, and has not been changed.