Figure 1. Median joining network of the trnH-psbA sequences in western Eurasian section Cerris.

Taxa are indicated with colours (see also File S1); black, Asian species of section Ilex; white, eastern Eurasian species of section Cerris. Line thickness according to 1, <5 and >5 mutations; *, shared with Asian Ilex oaks; **, shared with Cerris-Ilex lineage of section Ilex; ***, shared with West-Med lineage of section Ilex; L1, L2, haplotype lineages identified. All accession numbers are reported in Files S1 and S2.