Family: Teloschistaceae Species: Athallia cerinelloides (Caloplaca cerinelloides) Growth type crustose Photos: On Ash (Fraxinus), Caha Pass, Co. Cork, SW Ireland. The thallus is inconspicuous or absent with very small apothecia usually in small, crowded groups, the discs yellow or orange-yellow. Asci are 8-spored, the spores (8·5-)10-13(-15) x (5-)6-8(-9) µm. Septum (2·5-)3.5-5(-6) µm wide. Micrographs below. Thallus K-, apothecia K+ red Apparently very rare in Ireland but possibly under-recorded due to confusion with Caloplaca cerinella. Occurs on dusty, base-rich twigs of Buddleia, Fraxinus, Juglans, Populus tremula and Sambucus Similar: Caloplaca cerinella has (8-)12-16 spored asci

Micrographs



Athallia cerinelloides, Caloplaca cerinelloides. January 2012