This name is a synonym of Ophioglossum vulgatum subsp. kilimandscharicum (Hieron.) J.E. Burrows.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50287759) with original publication details: Pflanzenw. Ost-Afrikas C: 89 1895.
This name was in version 1 of The Plant List, record tro-50287759, and has not been changed.