Figure legends
Figure 1 Overview of the evolution of plant adaptations to dry environments. The recurring appearance of carbon concentrating mechanisms (CCMs), desiccation tolerance (DT) and root impermeability in Viridiplante lineages are shown. Root impermeability shows endodermis (yellow), exodermis with suberin only (bright turquoise) and exodermis with suberin and lignin (blue).
Figure 2 Exodermis (hypodermis) evolution across land plants. The inner ring represents the exodermis phenotype and the outer ring the major clades. The phylogenetic tree was generated using NCBI Common Tree (www.ncbi.nlm.nih.gov/Taxonomy/CommonTree/wwwcmt.cgi) and edited using iTOL (itol.embl.de/).