Teloschistaceae Variospora thallincola (Caloplaca thallincola) Growth type placodioid Chemical results: K+ crimson Coastal on sheltered, hard siliceous rocks, often with Verrucaria maura The bright orange to yellow-orange thallus is areolate in the centre with long convex lobes and often forms rosettes. Scattered orange apothecia in thallus centre, asci 8-spored, spores often lemon-shaped, 10-15 x 8-12 µm Similar: Caloplaca flavescens. Caloplaca verruculifera is isidiate, the thallus is yellow and apothecia are rare

Caloplaca thallincola
Dancing Ledge, Dorset. February 2013