CALARAMO, M. A.; RUBITE, R. R.; LIN, C.-W. Two new endemic Begonia species named after historical landmarks of Ilocos Sur, Philippines. Phytotaxa, Auckland, New Zealand, v. 613, n. 2, p. 171–179, 2023. DOI: 10.11646/phytotaxa.613.2.6. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.613.2.6. Acesso em: 6 dec. 2025.