Environmental niche models (ENM) constructed using a current climate envelop and occurrence data for the samples of the Tamus clade of Dioscorea analysed in this study. ENMs were estimated for each of the four lineages identified in the Tamus clade with background maps adjusted to reflect their estimated potential distributions: DC3 clade of D. communis; DC2 clade of D. communis; the Macaronesian DC1 lineage of D. communis; and D. orientalis. A 10% threshold cropping was applied for each distribution range model (see Results). The legend represents the prediction of probability of occurrence.