Lichen ac (ii)

Lichen ac (ii)

Observation - Lichen ac (ii) - UK and Ireland. Description: Light grey crustose lichen growing on concrete paving slab. ‘Crazy paving’ lines on thallus across all of lichen rosette. Many black centred ‘jam tart’ apothecia with some centres slit shaped. Possibly Aspicilia calcarea

Light grey crustose lichen growing on concrete paving slab. ‘Crazy paving’ lines on thallus across all of lichen rosette. Many black centred ‘jam tart’ apothecia with some centres slit shaped. Possibly Aspicilia calcarea