This name is a synonym of Acaulimalva acaulis (Dombey ex Cav.) Krapov..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 19601455) with original publication details: Diss. 2: 82, t. 35, f. 2 1786.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:561508-1.
This name was in version 1 of The Plant List, record tro-19601455, and has not been changed.