This name is a synonym of Phenakospermum guyannense (A.Rich.) Endl. ex Miq..
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 260805) with original publication details: Nomencl. Bot. ed. 2, 2: 439 1841.
This name was in version 1 of The Plant List, record kew-260805.