VILLARREAL, J. C.; CARGILL, D. C.; HAGBORG, A.; SODERSTROM, L.; RENZAGLIA, K. S. A synthesis of hornwort diversity: Patterns, causes and future work. Phytotaxa, [S. l.], v. 9, n. 1, p. 150–166, 2014. DOI: 10.11646/phytotaxa.9.1.8. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.9.1.8. Acesso em: 19 mar. 2025.