Agyriaceae Trapelia glebulosa Growth type crustose Chemical results: Thallus: C+ red, UV+ white Common on siliceous rocks and pebbles, rare on worked timber and among rocks on coastal peaty turf. Scattered white or greyish squamules form clumps or a +/- continuous, overlapping crust, margin subsquamulose. Apothecia have brown or reddish-pink discs with thin whitish margins. Spores simple. Often infertile. Similar: Trapelia coarctata and T. placodioides

Trapelia glebulosa
Studland Heath and Langton Matravers, Dorset. April 2013 and January 2014