Simbiano, F. J., Couch, C., Magassouba, S., van der Burgt, X. M., Plummer, J., & Cheek, M. (2025). Keetia tinka & K. kounounkan sp. nov. (Rubiaceae - Vanguerieae) new threatened forest climbers and shrubs of sandstone plateaux of the Republic of Guinea. Webbia, 80(2), 183–195. https://doi.org/10.36253/jopt-19152