Interspecific and intraspecific divergence for <i>rbcL</i> and <i>matK.</i>

Levels of divergence were determined using uncorrected p-distances calculated from multiple alignments. Interspecific divergence includes only those genera with more than 1 species per genus (rbcL 199, matK 184 genera). Intraspecific divergence includes only those species with more than 1 individual sampled per species (rbcL 1041, matK 814 species).