DE BLOCK, Petra. Monograph of the western Indian Ocean genus Paracephaelis (Rubiaceae – Pavetteae), with description of thirteen new species. European Journal of Taxonomy, [S. l.], v. 801, n. 1, p. 1–99, 2022. DOI: 10.5852/ejt.2022.801.1685. Disponível em: https://ejt.sandbox.publicknowledgeproject.org/index.php/ejt/article/view/1685. Acesso em: 24 apr. 2026.