Order: Pertusariales Family: Megasporaceae
Species: Aspicilia caesiocinerea
Photos: On rock. Gougane Barra, Co. Cork, SW Ireland.
Identified by John Douglass
Thallus usually thick, warted, cracked or areolate, light grey, often with bluish tinge. Prothallus grey when present. Apothecia have black discs with persistent, thin, entire margins.
Cortex and medulla: K-, P-
Found on nutrient-rich siliceous rocks, often near water. Inland and coastal distribution.
Aspicilia caesiocinerea. August 2009