KLOPPER, R.R.; CROUCH, N.R. Recircumscription and distribution of elements of the ‘Ceterach cordatum’ complex (Asplenium: Aspleniaceae) in southern Africa. African Biodiversity & Conservation, [S. l.], v. 42, n. 1, 2012. Disponível em: https://mail.abcjournal.org/index.php/abc/article/view/256. Acesso em: 2 may. 2026.