Order: Lecanorales Family: Lecanoraceae
Species: Lecanora symmicta
Photos: On Birch and wooden gate. Co. Cork, SW Ireland.
Identification left confirmed by John Douglass
Granular or aureolate thallus, usually pale yellow-green but can be whitish or grey-green with an inconspicuous prothallus. Apothecia dispersed or clustered, discs flat to convex, cream, pinkish, pale orange or brown. Margins entire, soon excluded. Soralia absent.
Thallus K-, C+/- orange, KC+/- weak yellow, P-, UV+ dull orange
Common on acid-barked trees, wood and worked timber. Also occurs as a pioneer species on rough-barked twigs.
Similar: L. confusa, apothecia with persistent, crenulate margins
Lecanora symmicta May 2010 and December 2011