This name is a synonym of Gladiolus decoratus Baker.
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym (record 328797) with original publication details: Fl. Trop. Afr. 7: 577 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:437785-1.
This name was in version 1 of The Plant List, record kew-328797.