This name is a synonym of Himatanthus drasticus (Mart.) Plumel.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 161557) with original publication details: Reise Bras. 1: 547 1823.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:81206-1.
This name was in version 1 of The Plant List, record kew-161557, and has not been changed.