This name is a synonym of Dimerocostus argenteus (Ruiz & Pav.) Maas.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 234564) with original publication details: Mant. 1: 32 1822.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:796264-1.
This name was in version 1 of The Plant List, record kew-234564, and has not been changed.