Distribution of Gaultheria alnifolia var. alnifolia (solid square), G. alnifolia both vars. alnifolia and grata (half square), G. lanigera var. lanigera (solid circles), G. lanigera var. rufolanata (open circles), and G. oreogena (triangle).  Reproduced from Flora Neotropica Monographs 66: 416, fig. 10C.  1995.