Thallus pale greyish or glaucous-green, areolate-cracked, areolae angular, convex, uneven, wrinkled, separated by deep cracks, 0.4-0.8 mm diam., rarely sorediate. Soralia superficial, ± concave, 0.5-1.5 mm diam., soredia 40-60 µm diam., sometimes confluent. Apothecia brownish-red or pale violet, sessile to subpedicellate, scattered, solitary to 1-2-confluent, concave to plane, disc distinctly grey-pruinose, margins thick, persistent, entire or crenulate, red-brown, coriaceous. Epithecium granular, brownish, 12-24 µm thick. Hymenium 110-150(-180) µm tall, I+ blue. Ascospores 4-8 per ascus, broadly oval-ellipsoid, ends rounded or slightly pointed, thick-walled, 28-40 × 15-23 µm, septum 073 to 093 length of spore. Chemistry: KC-, Pd+ orange. Pannarin and zeorin.