Light grey thallus with dark soredia

Light grey thallus with dark soredia

Observation - Light grey thallus with dark soredia - UK and Ireland. Description: Thallus of light grey knobbly areoles with dark fimbriate prothallus growing on siliceous gravestones. Balls of ‘steelwool-like’ soredia sitting near middle of thallus. Possibly Lecanora pannonica.

Thallus of light grey knobbly areoles with dark fimbriate prothallus growing on siliceous gravestones. Balls of ‘steelwool-like’ soredia sitting near middle of thallus. Possibly Lecanora pannonica.