GRINGS, M.; BOLDRINI, I. I.; KNOB, A.; BORDIGNON, S. A. D. L. A new species of Calyculogygas (Malvaceae) from southern Brazil. Phytotaxa, Auckland, New Zealand, v. 178, n. 1, p. 43–49, 2014. DOI: 10.11646/phytotaxa.178.1.5. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.178.1.5. Acesso em: 6 dec. 2025.