Caloplaca thallincola

Caloplaca thallincola

Observation - Caloplaca thallincola. Description: On coastal rock in the company of Hydropunctaria (Verrucaria) maura. Photo 1: fungal infection or competition with H. maura?

On coastal rock in the company of Hydropunctaria (Verrucaria) maura. Photo 1: fungal infection or competition with H. maura?