Irish lichens

Trapelia glebulosa, Trapelia involuta

Order: Agyriales       Family: Agyriaceae

Species: Trapelia glebulosa

(Previously Trapelia involuta.) Growth type crustose to squamulose.
Photos: On upland rock. Ballingeary area. Co. Cork, SW Ireland.

Scattered , glossy, white, grey or pink-tinged squamules that form clumps or a +/- continuous, overlapping crust. Thallus margin subsquamulose. Often infertile, apothecia with reddish-pink to brownish discs with thin white margins.

Usually found on nutrient-enriched, upland siliceous rocks. Occasional on worked timber and among rocks on coastal peaty turf. Thallus: C+ red

Similar: T. coarctata and T. placodioides


Trapelia glebulosa


Trapelia glebulosa


Trapelia glebulosa
Trapelia glebulosa. July and August 2009

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