This name is a synonym of Crassula expansa subsp. fragilis (Baker) Toelken.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Man. Fl. Pl. & Ferns 1: 38, 140 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:273010-1.
This name was in version 1 of The Plant List, record kew-2741552.