Irish lichens

Protoblastenia rupestris
Order: Lecanorales       Family: Psoraceae

Species: Protoblastenia rupestris

Growth type crustose.
Photos: On roadside wall. Ballingeary, Cork, SW Ireland.

Scurfy or areolate greenish-brown or orange-grey thallus, can be +/- absent. Dull-orange apothecia with greenish tinge when wet, becoming convex and distorted. Apothecia not in pits.

Very common throughout Ireland on mortar, limestone and other calcareous substrata. Apothecia: K+ crimson

Similar: P. calva and P. incrustans. On hard, natural limestone.

Protoblastenia rupestris

Protoblastenia rupestris
Protoblastenia rupestris on wall. January 2009

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