This name is a synonym of Atriplex fissivalvis F.Muell..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 7201532) with original publication details: Nat. Pflanzenfam. (ed. 2) 16c: 521 1934.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:165839-1.
This name was in version 1 of The Plant List, record tro-7201532, and has not been changed.