Irish lichens
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Order: Pertusariales
Family: Pertusariaceae
Species: Lepra corallina (Pertusaria corallina) Photos: On acidic upland rock. Ballingeary, Cork, SW Ireland. Thick, warted, white or whitish-grey thallus with white prothallus. Centre covered with abundant long, white isidia. Apothecia rare. Thallus: K+ persistent yellow, KC+ yellow, P+ orange, UV- Common on exposed, siliceous, upland and coastal rocks. Host to the lichenicolous fungus Sclerococcum sphaerale. Similar: P. pseudocorallina. K+ yellow turning red. |
Pertusaria corallina. February 2009