Caloplaca cirrochroa Teloschistaceae
Leproplaca cirrochroa (Caloplaca cirrochroa)

Growth type placodioid
Chemical results: K+ crimson

Local but can sometimes be abundant on warm, sheltered hard calcareous rocks. Also found on vertical limestone church memorials.

Thallus composed of an areolate centre surrounded by long, narrow, radiating lobes, the lobes yellow-orange to bright orange and sometimes with pruinose tips. Rarely fertile but the lobes become dotted with very distinctive bright lemon-yellow convex soralia.


Caloplaca cirrochroa

Caloplaca cirrochroa

Caloplaca cirrochroa

Caloplaca cirrochroa
Caloplaca cirrochroa
On limestone, Portland and churchyard wall, Puddletown, Dorset. February 2016, April 2017

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