FigS3

Figure S3. Biogeography of Tetraglochin species and their climatic niches along the environmental (E) space. Left: ancestral range estimation (ARE) on the Tetraglochin chronogram using the DEC model in BioGeoBEARS. States at nodes (squares) represent the area with highest ML probability before the instantaneous speciation event, whereas those on branches represent the state of the descendant lineage immediately after speciation. Squares with more than one letter refer to ancestral areas composed of more than one biogeographical area. Boxes to the left of taxon names indicate areas of tip species. Probabilities of ancestral areas are shown to the right of nodes. Right: Climatic niches for species of Tetraglochin produced by the three main axes of the PCA-env. For each species, the gray to black shading represents the grid cell density of the species occurrence (black being the highest density). The dashed line represents 50% of the available environment and the solid line represents 100%.