Teloschistaceae Flavoplaca dichroa (Caloplaca dichroa) Growth type crustose Chemical results: K+ crimson Occurs on sunny, exposed limestone rocks Pale yellow-orange to orange, granular-areolate thallus, the surface of the areoles covered with blastidia or granules. Apothecia can be frequent, discs orange, pruina absent. One of a number of species separated from the Caloplaca 'citrina' complex

Caloplaca dichroa
Sturminster Marshall and Wimborne, Dorset. March 2014 and 2017