This name is a synonym of Himatanthus attenuatus (Benth.) Woodson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 161522) with original publication details: Fl. Bras. 6(1): 42 1860.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:81173-1.
This name was in version 1 of The Plant List, record kew-161522.