This name is a synonym of Graptopetalum filiferum (S.Watson) Whitehead.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8902581) with original publication details: Proc. Amer. Acad. Arts 21: 428 1886.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:231717-2.
This name was in version 1 of The Plant List, record tro-8902581, and has not been changed.