This name is a synonym of Gaultheria pumila var. leucocarpa (DC.) D.J.Middleton.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50246287) with original publication details: Encycl. 1: 155 1783.
This name was in version 1 of The Plant List, record tro-50246287.