Figueiredo, Estrela, Gideon F. Smith, and Ricardo F. De Lima. 2024. “The Pteridophytes of São Tomé and Príncipe, Gulf of Guinea: Who Collected Them and Where?”. Phytotaxa 634 (1). Auckland, New Zealand:31-48. https://doi.org/10.11646/phytotaxa.634.1.3.