Phylogenetic tree of Petrocodon generated from Maximum Likelihood (ML) of trnL-F and ITS datasets. Numbers on the branches indicate ML bootstrap values (≥ 50%).

 
 
  Part of: Zhang R-B, Deng T, Li N, Wen F (2023) Petrocodon wui (Gesneriaceae), a new species from Guizhou, China. PhytoKeys 225: 41-51. https://doi.org/10.3897/phytokeys.225.99660