Figure 3 from: Qiu Z-J, Zhang J, Baskaran X-R, Hu J, Li Z-Y, Liu Z-Y (2020) Petrocosmea nanchuanensis (Gesneriaceae), a new species from Chongqing, China. In: Shui Y-M, Chen W-H, Ren M-X, Wen F, Hong X, Qiu Z-J, Wei Y-G, Kang M (Eds) Taxonomy of Gesneriaceae in China and Vietnam. PhytoKeys 157: 137-144. https://doi.org/10.3897/phytokeys.157.33625