Source: Frisch, A., Holien, H., Klepsland, J.T., Suija, A. & Bendiksby, M. 2022. New data on lichenicolous fungi in Norway. Graphis Scripta 34 (7): 59–133. Oslo. ISSN 2002-4495. - CC BY-4.0
Opegrapha arthoniicola (on Arthonia radiata). TRH-L-24880. Scale = 2 mm. Photo: A. Frisch.
