Lichen with coralloid isidia

Lichen with coralloid isidia

Observation - Lichen with coralloid isidia - UK and Ireland. Description: Creamy-brown coloured, areolate crustose lichen growing on coastal, cliff-top, siliceous rocks. Dark-brown tipped coralloid isidia. Possibly Pertusaria pseudocorallina.

Creamy-brown coloured, areolate crustose lichen growing on coastal, cliff-top, siliceous rocks. Dark-brown tipped coralloid isidia. Possibly Pertusaria pseudocorallina.