This name is a synonym of Haworthia glauca Baker.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 277036) with original publication details: Bol. Soc. Brot. II, 15: 161 1941.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:536017-1.
This name was in version 1 of The Plant List, record kew-277036.