DE VRIES, Bernard. Usnea Lapponicum (Powdered Beard Lichen). Blue Jay, [S. l.], v. 72, n. 2, p. 111–113, 2014. DOI: 10.29173/bluejay304. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/304. Acesso em: 2 may. 2024.