D.J.Middleton (DC.) 1990 - Middleton DJ, Wilcock CC (1990) A critical examination of the status of Pernettya as a genus distinct from Gaultheria. Edinburgh Journal of Botany 47(03): 291. doi: 10.1017/S0960428600003449.
There is no corrections for Gaultheria pumila var. leucocarpa yet.