DAVYDOV, E. A.; YAKOVCHENKO, L. S. Validation of the lectotypification of the name Umbilicaria africana (Umbilicariaceae, lichenized Ascomycota). Phytotaxa, Auckland, New Zealand, v. 665, n. 3, p. 300–300, 2024. DOI: 10.11646/phytotaxa.665.3.12. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.665.3.12. Acesso em: 6 dec. 2025.