Order: Pertusariales Family: Pertusariaceae
Species: Ochrolechia androgyna
Photos: Over moss on upland rock. Ballingeary, Cork, SW Ireland
Variable. Thallus whitish to pale yellow-grey, usually thick, granular-warted with yellowish soredia scattered or forming a continuous crust. Apothecia more frequent on mature specimens, disc pinkish to orange-brown. When occurring on trees the thallus is thinner.
Widespread in upland areas, often over moss on siliceous rocks and acid-barked trees. Thallus K-, C+ red, KC+ orange-red, P-, UV-
Similar: O. tartarea. Abundant apothecia. Thallus K+ pale yellow
Pertusaria hemisphaerica. Bluish soredia, C+ carmine-red
Ochrolechia androgyna. Ballingeary area, Co. Cork. May 2009