Paralecanographa grumulosa forme parasite de Llimonaea sorediata

    Parasite form of Llimonaea sorediata. On sheltered north walls of chapels near the seashore. Host thallus destruction occurs rapidly and at final stages of parasite development only small pink fragments remain in between Lecanographa grumulosa  apothecia and more precisely of its form Lecanographa grumulosa forma hemisphaerica that seems usual on this host.