Source: Coppins BJ, Kondratyuk SY, Etayo J, Cannon PF. Notes on lichenicolous species of Opegrapha s. lat. (Arthoniales) on Arthoniaceae and Verrucariaceae, with a key to British and Irish lichenicolous Opegraphaceae. The Lichenologist. 2021;53(2):159-169.
