This name is a synonym of Carex brevicuspis var. basiflora (C.B.Clarke) Kük..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 224883) with original publication details: J. Linn. Soc., Bot. 36: 274 1903.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:298778-1.
This name was in version 1 of The Plant List, record kew-224883, and has not been changed.