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Order: Teloschistales
Family: Teloschistaceae
Species: Caloplaca verruculifera (Polycauliona verruculifera) Growth type: Placodioid (crustose with lobed margins)Photos: On coastal rock. Mizen Head, Co. Cork, SW Ireland. Thallus usually yellow to greenish-yellow (rarely slightly orange-tinged) with elongated, radiating lobes. The centre of the thallus is covered with irregular flattened-globose isidia, apothecia are rare. K+ crimson / purple. Coastal, often on nutrient-enriched bird-perching sites. Similar: Caloplaca thallincola |
Caloplaca verruculifera on coastal rock. Mizen Head, Co. Cork. June 2009