This name is a synonym of Dudleya caespitosa (Haw.) Britton & Rose.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8902532) with original publication details: Ecl. Pl. Rar. 1: 27, pl. 17 1811.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:275273-1.
This name was in version 1 of The Plant List, record tro-8902532, and has not been changed.