North wall lichen

North wall lichen

Observation - North wall lichen - UK and Ireland. Description: Circular, light slate-grey thallus with distinct prothallus growing on vertical northern limestone wall of church. Grey soredia covering thallus apart from clear outer band. Possibly Dirina massiliensis f. sorediata.

Circular, light slate-grey thallus with distinct prothallus growing on vertical northern limestone wall of church. Grey soredia covering thallus apart from clear outer band. Possibly Dirina massiliensis f. sorediata.