This name is a synonym of Tridens chapmanii (Small) Chase.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 447341) with original publication details: Rhodora 37: 133 1935.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:258472-2.
This name was in version 1 of The Plant List, record kew-447341, and has not been changed.