ENACHE, M. D.; POTAPOVA, M.; SHEIBLEY, R.; MORAN, P. Three new Psammothidium species from lakes of Olympic and Cascade Mountains in Washington State, USA. Phytotaxa, Auckland, New Zealand, v. 127, n. 1, p. 49–57, 2013. DOI: 10.11646/phytotaxa.127.1.8. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.127.1.8. Acesso em: 6 dec. 2025.