This name is a synonym of Acalypha ambigua Pax.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 500) with original publication details: Kunene-Sambesi Exped. 283 1903.
This name was in version 1 of The Plant List, record kew-500, and has not been changed.