Darbyshire, I., J. E. Burrows, Q. Luke, and C. Langa. “Cladoceras Rovumense sp. nov. (Gentianales-Rubiaceae), a New Species from Southeast Tanzania and Northeast Mozambique”. European Journal of Taxonomy, vol. 833, no. 1, July 2022, pp. 46-59, doi:10.5852/ejt.2022.833.1883.