NTORE, Salvator; NKENGURUTSE, Jacques; DE BACKER, Sander; SONKÉ, Bonaventure; DE BLOCK, Petra; JANSSENS, Steven B.; VERSTRAETE, Brecht; ROBBRECHT, Elmar. Calycosiphonia or Kupeantha (Coffeeae, Rubiaceae)? A morphological and molecular study of a new species from the Albertine Rift. European Journal of Taxonomy, [S. l.], v. 935, n. 1, p. 1–28, 2024. DOI: 10.5852/ejt.2024.935.2539. Disponível em: https://ejt.sandbox.publicknowledgeproject.org/index.php/ejt/article/view/2539. Acesso em: 24 apr. 2026.