Figure 2 from: Yang L, Feng C, Kang M, Wen F (2020) The taxonomic identity of Didymostigma trichanthera (Gesneriaceae). 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: 183-189. https://doi.org/10.3897/phytokeys.157.32577

Figure 2 A Holotype of Henckelia anachoreta (F.H. Hance 11377, BM-000041739!) and B isotype of Didymostigma trichanthera (Chuang-Xing Ye 5960, A-00135544!). Arrow indicates calyx.