Order: Lecanorales Family: Lecanoraceae
Species: Lecidella scabra
Photos: Allihies, Co. Cork, SW Ireland.
Thin or roughly granular grey thallus, often tinged greenish. Delimited soralia become confluent, bluish-green or yellow-green, grey-green when rubbed. Soralia reduced when apothecia present.
Common on acidic walls and rocks. Also found on slightly base-rich rocks and occasionally on weathered or dusty wood and tree bases.
Lecidella scabra March 2012