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 geographicola (on Rhizocarpon geographicum). TRH-L-24906. A. Habitus, B. Ascus
with semi-mature ascospores. Scale: A = 2 mm, B = 20 μm. Photos: A. Frisch. A. Frisch.
