SOBRADO, Sandra V.; DO CARMO, João A.M.; SIMÕES, André O.; SALAS, Roberto M. Two new species of Psyllocarpus (Spermacoceae, Rubiaceae) from the state of Minas Gerais, southeastern Brazil. European Journal of Taxonomy, [S. l.], v. 806, n. 1, p. 161–176, 2022. DOI: 10.5852/ejt.2022.806.1713. Disponível em: https://ejt.sandbox.publicknowledgeproject.org/index.php/ejt/article/view/1713. Acesso em: 24 apr. 2026.