This name is a synonym of Acalypha pygmaea A.Rich..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 1106) with original publication details: Linnaea 34: 49 1865.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1476-2.
This name was in version 1 of The Plant List, record kew-1106, and has not been changed.