Order: Lecanorales Family: Lecanoraceae
Species: Lecanora saligna
Photos: On wooden rail. Ballingeary, Co. Cork, SW Ireland.
Thallus yellow-grey to greyish of dispersed or +/- contiguous granules, prothallus indistinct or absent. Small apothecia with pale or dark reddish-brown discs to 0.8mm, sometimes thinly pruinose. Margins entire to crenulate, usually persistent but sometimes becoming inconspicuous. Frequent red-brown to black pycnidia.
Scattered distribution in Ireland but can be relatively frequent on well-lit worked timber and weathered wood.
Chemical reactions negative.
Lecanora saligna January 2010