This name is a synonym of Acaulimalva purdiaei (A.Gray) Krapov..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 19603265) with original publication details: Ann. Sci. Nat., Bot., sér. 4, 17: 154–155 1862.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:561865-1.
This name was in version 1 of The Plant List, record tro-19603265, and has not been changed.