Flavoparmelia caperata forma papillosa Harm.

    This morph differs from the canonical type Flavoparmelia caperata f. caperata par by its thallus and the apothecia exciple covered with small verrucose isidia, 0.2-0.5 mm diam., and devoid of soredia. Uncommon form in exposed places, in particular on rocks or on the ground but also on the bark of trees very exposed to sea winds