VAN WILGEN, Brian W. Updated guide to southern Africa’s fern flora. South African Journal of Science, [S. l.], v. 109, n. 7/8, p. 1, 2013. DOI: 10.1590/sajs.2013/a0024. Disponível em: https://sajs.co.za/article/view/3928. Acesso em: 3 may. 2024.