This name is a synonym of Sedum sediforme (Jacq.) Pau.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name with original publication details: Philos. Mag. J. 66: 174 1824.
This name was in version 1 of The Plant List, record kew-2483733, and has not been changed.