Cartoon topology of ML phylogenetic tree based on three loci.

<p>The numbers in each node represents bootstrap support and posterior probability values based on Bayesian analysis, and the numbers lower than 50 (BS) and 0.5 (PP) were not shown. The number of each sample (i.e. No.) is listed in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0163664#pone.0163664.s008" target="_blank">S1 Table</a>, while the number in the bracket indicates that the amount of samples corresponding to the same species in the same sub-branch. Three colors are included in the branches (blue = <i>H</i>. <i>hypotrypa</i>, yellow = <i>H</i>. <i>flavida</i>, orange = both <i>H</i>. <i>hypotrypa</i> and <i>H</i>. <i>flavida</i>). The branches of other species of <i>Hypogymnia</i> and outgroup are shown in gray color. Right table indicates the collection locality information and main morphological characters delimiting <i>H</i>. <i>hypotrypa</i> and <i>H</i>. <i>flavida</i>. Red = Shaanxi Province of China (CH-Sx), green = Yunnan Province of China (CH-Yn), purple-red = Sichuan Province of China (CH-Sc), brown = Tibet of China (CH-Ti), pink = Taiwan of China (CH-Tw), pale blue = Japan (JA), purple = Russia (RU). Soredia is indicated by ◇ (◇ = absence, ◆ = presence, half filled ◇ = absence sometimes), lobes by ■ (■ = wide, half filled □ = both wide and fingerlike), and apothecia by ○ (○ = absence, ● = presence, half filled ○ = absence sometimes). ☆, shows all the samples in the sub-branch distribute at the high altitude (more than 2000 meters high); hexagon, part at the middle altitude (about 500 m); oval, part at low altitude (about 50 m).