Enache, Mihaela D., Marina Potapova, Rich Sheibley, and Patrick Moran. “Three New Psammothidium Species from Lakes of Olympic and Cascade Mountains in Washington State, USA”. Phytotaxa 127, no. 1 (August 29, 2013): 49–57. Accessed December 6, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.127.1.8.