This name is a synonym of Eleocharis pachystyla (C.Wright) C.B.Clarke.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 264639) with original publication details: Fl. Cub. 174 1871.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:314047-1.
This name was in version 1 of The Plant List, record kew-264639, and has not been changed.