Order: Lecanorales       Family: Candelariaceae Species: Candelariella vitellina Growth type crustose. Photos: On lake-side rock. Gougane Barra, Cork, SW Ireland. Variable. Thallus thin or of flattened, mustard-yellow to orange-brownish, irregular granules which can form thick crusts. Apothecia dull yellowish, becoming darker with age. Soredia and isidia absent. Found on nutrient-rich siliceous rocks, tops of concrete posts and other sites where birds perch. Occasional on slightly calcareous brick or rock. Chemical reaction K-

     



Candelariella vitellina. Gougane Barra, Co.Cork. December 2008