Description: This is a crustose, mosaic-forming lichen of hard, siliceous rock outcrops and boulders with a predominantly grey, silvery thallus and numerous, flat or irregularly shaped, brown-black discs that are not ringed by a margin. It grows on exposed, upland, quartzose rocks often alongside F. cyathoides and Rhizocarpon geographicum. North-west and south-east Ireland.

Key Identification Features:

• The grey colour, irregularity of the disc shape and specialised habitat should distinguish it
• The species forms dense and elaborate mosaics in mountain country.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Fuscidea kochiana at iNaturalist World Species Observations database.