Thallus cream-white or pale buff or greyish-white, granular-verrucose, ± continuous or areolate-cracked, areolae convex, minute, spreading in irregular patches 1-4 cm diam. Apothecia crowded, ± innate to sessile and constricted at base, 0.2-0.8(-1.2) mm diam., margins concolorous with thallus, entire to crenulate or flexuose, disc dark red-brown, matt, epruinose, plane to subconvex-undulate. Epithecium granular, red-brown, 8-13 µm thick. Hymenium colourless, 80-90 µm tall. Paraphyses discrete, simple, dense, 1.5 µm diam., apices brown, capitate, to 5.1 µm diam. Asci clavate. Ascospores biseriate, ellipsoid, ends rounded, straight, 10-13.6 × 5.1-6.8 µm. Chemistry: Atranorin, gangaleoidin and thamnolic acid (tr.).