Irish lichens

Caloplaca aurantia
Order: Teloschistales       Family: Teloschistaceae

Species: Variospora aurantia (Caloplaca aurantia)

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

Radiating orangey-yellow thallus, lobes with distinctly flattened tips. Area behind lobe tips often paler, thallus centre darker. Numerous large orange-brown apothecia with lighter margins. Asci 8-spored, the spores 10-13 x 8-10 Ám.
Thallus and apothecia: K+ crimson / purple.

Occurs on sunny, nutrient-rich calcareous rocks and tombstones.

Similar: Caloplaca flavescens

Caloplaca aurantia

Caloplaca aurantia

Caloplaca aurantia
Caloplaca aurantia. BLS Burren meeting April 2009

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