This name is a synonym of Geissorhiza imbricata subsp. bicolor (N.E.Br.) Goldblatt.
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym (record 327525) with original publication details: J. Linn. Soc., Bot. 48: 44 1928.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:437088-1.
This name was in version 1 of The Plant List, record kew-327525, and has not been changed.