Order: Lecanorales       Family: Lecanoraceae Species: Protoparmeliopsis muralis (Lecanora muralis) Growth type placodioid (crustose with lobed margins). Photos: On rock beside lake. Gougane Barra, Cork, SW Ireland. Pale greenish-grey to yellow-grey lobular thallus with clearly lobed outer margin. Numerous apothecia with brown or creamy-brown discs, margins crenulate when mature. Common in urban areas on roof-tiles, concrete, asphalt and pavementsand also found on nutrient-rich bird-perching rocks. K-, C-, P- or P+ yellowish

Protoparmeliopsis muralis (Lecanora muralis). Gougane Barra, Co.Cork. December 2008