Irish lichens

Protoblastenia calva
Order: Lecanorales       Family: Psoraceae

Species: Protoblastenia calva

Growth type crustose.
Photos: On limestone rocks. The Burren, W Ireland.
BLS Burren meeting 2009

Smooth, cracked, white or pale-grey, +/- immersed thallus. Large (to 1.5mm), convex, deep-orange apothecia in shallow pits.

Only occurs on hard limestone, scattered distribution in Ireland. Apothecia K+ crimson

Similar: P. rupestris. Common on mortar, calcareous rocks.


Protoblastenia calva


Protoblastenia calva
Protoblastenia calva. BLS Burren meeting, April 2009

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