This name is a synonym of Agrostis emirnensis (Baker) Bosser.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 402639) with original publication details: Consp. Fl. Afric. 5: 831 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:394430-1.
This name was in version 1 of The Plant List, record kew-402639, and has not been changed.