This name is a synonym of Trematodon longicollis Michx..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35120224) with original publication details: Mém. Soc. Linn. Paris 5: 252 1827.
This name was in version 1 of The Plant List, record tro-35120224.