Order: Incertae sedis Family: Arthrorhaphidaceae
Species: Arthrorhaphis grisea
Photos: Parasitic on Baeomyces rufus. Ballingeary area, Co. Cork, SW Ireland. Identification needs confirming
Whitish-grey to dark grey thallus immersed in host giving an unhealthy appearance. Sessile apothecia, urceolate or +/- closed, becoming disc-shaped with thick margin. Black, usually superficial pycnidia. Often only the pycnidia are present.
Occurs on Baeomyces rufus on acid soils and siliceous rocks, usually in upland areas. UV-
Arthrorhaphis grisea. March 2009