Thallus small, rosette-forming, to 4 cm diam., lobes narrow to subrotund, to 3 mm wide, margins sinuous. Upper surface plane to convex, smooth or wrinkled-plicate, not faveolate, pale greenish-grey, matt, waxy, occasionally covered with a crazing of fine black lines, without isidia, soredia or pruina. Lower surface pale buff or creamish, wrinkled-papillate. Rhizines pale buff, simple, to margins. Apothecia common, sessile to subpedicellate, disc concave, imperforate, brown-red, to 5 mm diam., margins crenate, inflexed, obscuring disc at first, thalline exciple wrinkled, striate-verrucose, thick. Ascospores 9-11(-14) × (6-)7-8 µm. Pycnidia common, punctiform, red-brown to black, widely scattered. Chemistry: Cortex K+ yellow: medulla K-, C+ rose, KC+ rose, Pd-. Lecanoric acid and atranorin.