Irish lichens
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Order: Lecanorales Family: Lecanoraceae
Species: Lecanora expallens Photos: On old fence post. Ballingeary, Cork, SW Ireland. Cracked or granular yellow-green to yellow-grey thallus. Pale yellow, farinose soredia spreads to cover thallus. Small apothecia are infrequent, discs slightly pinkish, the sorediate margins becoming excluded. Pale grey prothallus visible on smooth bark. K+ yellow, C+ deep yellow or orange-red, P-, UV+ orange Common on tree trunks, bark, fences and worked timber. Similar: Lecanora barkmaniana, K+ yellow, C- Lecanora compallens, thallus K-, C- |
Lecanora expallens. August 2009