This name is a synonym of Ophioglossum pusillum Raf..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26602168) with original publication details: Rep. Michigan Acad. Sci. 18: 84 1916.
This name was in version 1 of The Plant List, record tro-26602168, and has not been changed.