Irish lichens

Athallia cerinelloides, Caloplaca cerinelloides

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 (85-)10-13(-15) x (5-)6-8(-9) m. Septum (25-)3.5-5(-6) m 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


Athallia cerinelloides, Caloplaca cerinelloides

Athallia cerinelloides, Caloplaca cerinelloides

Micrographs
Athallia cerinelloides, Caloplaca cerinelloides

Athallia cerinelloides, Caloplaca cerinelloides
Athallia cerinelloides, Caloplaca cerinelloides. January 2012

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