Fig. 1.
Map of the western Mediterranean basin showing locations of 41 sampled populations of Iris lutescens. Each pie chart indicates the proportion of yellow and purple individuals in each population in 2013. The top right inset shows purple- and yellow-flowered individuals of I. lutescens. Photographs was taken by Bruce Anderson near Montpellier, Languedoc-Roussillon region, France. The bottom right inset shows 29 populations around Montpellier in southern France. An asterisk indicates a population only involved in neutral genetic analyses (FST calculated), and no information for flower colour reflectance and flower size is available (no phenotypic distance calculated).