This name is a synonym of Perrierosedum madagascariense (H. Perrier) H. Ohba.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8901872) with original publication details: Bull. Mus. Hist. Nat. (Paris) 29: 452 1923.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:275658-1.
This name was in version 1 of The Plant List, record tro-8901872, and has not been changed.