Order: Teloschistales       Family: Teloschistaceae Species: 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. On calcareous substrates: limestone, mortar and concrete. Occasionally found parasitic on Verrucaria species. K+ crimson / purple. C. holocarpa is very similar but occurs on siliceous rocks.

Caloplaca oasis. BLS Burren meeting, April 2009