This name is a synonym of Thallocarpus synsporus (Schiffner) Schiffner.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35215527) with original publication details: Symb. Antill. 1908.
This name was in version 1 of The Plant List, record tro-35215527, and has not been changed.