This name is a synonym of Styrax guyanensis A.DC..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50109561) with original publication details: Fl. Bras. 7: 88 1868.
This name was in version 1 of The Plant List, record tro-50109561, and has not been changed.