Irish lichens

Caloplaca oasis
Order: Teloschistales       Family: Teloschistaceae

Species: Flavoplaca oasis (Caloplaca oasis)

Growth type crustose.
Photos: On limestone, Teampall Chronain, the Burren, Ireland.
BLS Burren meeting 2009

Previously included in C. holocarpa agg. Abundant crowded, small orange or dark orange apothecia with very narrow margins.
K+ crimson / purple.

Occurs on calcareous substrates: limestone, mortar and concrete. Sometimes found parasitic on Verrucaria species.

C. holocarpa is very similar but occurs on siliceous rocks.

Caloplaca oasis

Caloplaca oasis
Caloplaca oasis. BLS Burren meeting, April 2009

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