This name is a synonym of Sceletium tortuosum (L.) N.E. Br..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100362388) with original publication details: Sp. Pl. 1: 487 1753.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:363552-1.
This name was in version 1 of The Plant List, record tro-100362388, and has not been changed.