This name is a synonym of Crassula ovata (Mill.) Druce.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 6: 329 1778.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:60444794-2.
This name was in version 1 of The Plant List, record kew-2741506, and has not been changed.