“…Orinus thoroldii is not only more genetically distant from its congeners (Figure ), but also more geographically distant. Thus, genetic differentiation in Orinus may be mediated by reduced gene flow over greater geographic distances as is consistent with an allopatric mode of speciation as has been observed in other plant species of the QTP (Ge, Zhang, Yuan, Hao, & Chiang, ; Hu et al, ; Liu, Wang, Geng, et al, ; Zhang, Chiang, George, Liu, & Abbott, ).…”