Description: A ‘bark pimple’ lichen with a pale fawn to dark brown thallus, especially frequent on the smooth bark of hazel in hyperoceanic areas. The one-septate spores, 3-4.5µm wide should distinguish it. Northern and western Ireland.

Key Identification Features:

• The fawn to dark brown thallus alone should distinguish it from related Arthopyrenia species
• Spores are one-septate, 3-4.5µm wide.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Naetrocymbe carneobrunneola at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Naetrocymbe carneobrunneola at iNaturalist World Species Observations database.