Lichen on concrete

Lichen on concrete

Observation - Lichen on concrete. Description: Largest patch about 15 cms in diameter growing on concrete bridge lintel over main road. South facing.I tnink that it may be Xantharia parietina.

Largest patch about 15 cms in diameter growing on concrete bridge lintel over main road. South facing.I tnink that it may be Xantharia parietina.