Caloplaca marmorata Teloschistaceae
Xanthocarpia marmorata (Caloplaca marmorata) (Caloplaca lactea)

Growth type crustose
Chemical results: Thallus K-, apothecia K+ red

Pioneer species on limestone, soft chalk and sea shells

Inconspicuous or thin white thallus. The small, dispersed, bright orange-yellow apothecia have prominent margins and become translucent when wet. Spores 11-14 x 6-8.5, septum narrow, less than 1/8 length.

Caloplaca lactea

Caloplaca lactea

Caloplaca lactea
Xanthocarpia marmorata (Caloplaca marmorata)
Canford Cliffs, Dorset. January 2013

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