This name is a synonym of Acalypha neptunica var. pubescens (Pax) Hutch..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 893) with original publication details: Bot. Jahrb. Syst. 43: 323 1909.
This name was in version 1 of The Plant List, record kew-893, and has not been changed.