Irish lichens

Arthrorhaphis grisea

Order: Incertae sedis       Family: Arthrorhaphidaceae

Species: Arthrorhaphis grisea

Lichenicolous fungus. Thallus absent or crustose.
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


Arthrorhaphis grisea


Arthrorhaphis grisea
Arthrorhaphis grisea. March 2009

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