AVERYANOV, L. V.; NGUYEN, K. S.; NGUYEN, H. T. Checklist of mycoheterotrophic species of the genus Exacum (Gentianaceae) and new species, E. zigomorpha, from northern Vietnam. Phytotaxa, Auckland, New Zealand, v. 183, n. 2, p. 108–113, 2014. DOI: 10.11646/phytotaxa.183.2.3. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.183.2.3. Acesso em: 6 dec. 2025.