This name is a synonym of Ophioglossum costatum R. Br..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26602985) with original publication details: Vid. Selsk. Afh. 4: 226 1827.
This name was in version 1 of The Plant List, record tro-26602985.