This name is a synonym of Melochia argentina R.E. Fr..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50197587) with original publication details: Repert. Spec. Nov. Regni Veg. 13: 238 1914.
This name was in version 1 of The Plant List, record tro-50197587, and has not been changed.