Irish lichens
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Order: Teloschistales Family: Teloschistaceae
Species: Caloplaca britannica Photos: On coastal rocks. Snave, Co. Cork, SW Ireland. Thallus of very small pale yellow, radiating lobes covered with irregular, globular isidia. Apothecia common, pale orange with paler margins. Spores polarilocular, 11-14 x 4-6 µm, septum 3.5 µm wide Probably very under-recorded on sheltered, siliceous coastal rocks, in cliff crevices and on bird-perching rocks. Chemistry K+ red Similar: Caloplaca littorea (coastal) and C. arcis (churchyards) |
Caloplaca britannica. September 2009