This name is a synonym of Acalypha welwitschiana Müll.Arg..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 189) with original publication details: J. Bot. 2: 335 1864.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:337164-1.
This name was in version 1 of The Plant List, record kew-189, and has not been changed.