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Order: Teloschistales Family: Teloschistaceae
Species: Caloplaca cerina Photos: On Wych Elm. Bantry, Co. Cork, SW Ireland. Identification confirmed by John Douglass Thin or areolate light-grey thallus with large (to 2mm) apothecia, discs orange-yellow with thick, +/- crenulate, greyish margins. The asci are 8-spored, spores polarilocular, 12-15 x 8-10 µm, septum 5-8 µm wide, 1/3 - 1/2 length of spore. Micro photos below. Apothecia K+ red-purple Occurs on both twigs and branches of basic-barked shrubs and trees like Elder, Ash and Sycamore. Similar: C. cerinella. Smaller apothecia, asci 12-16 spored |