Maximum Likelihood (ML) tree of Trimeresurus derived from the analysis of 2427 bp of cyt b, ND4 and 16S rRNA mitochondrial DNA gene sequences. For voucher specimen information and GenBank accession numbers see Table 2. Numbers at tree nodes correspond to ML UFBS/BI PP support values, respectively. Colors of clades and locality numbers correspond to those on the map in Figure 1. Photograph by P. Pawangkhanant.