Thallus yellow, orange to brown-orange (dusty habitats), continuous and coarsely cracked or in scattered patches, often rather thick, composed of dispersed to crowded, small, convex, often somewhat flattened, rounded to crenate, subsquamulose granules 0.5-2 mm diam., without marginal lobes. Prothallus thin, continuous, dark grey to black, often obscured by the thallus. Isidia and soredia absent. Photobiont chlorococcoid. Anamorph: conidiomata pycnidia, frequent, 800-1000 µm diam., appearing as orange-yellow spots on the thallus. Conidia 2.5-3 × 1-1.5 μm, bacilliform. Teleomorph: ascomata apothecia, frequent, 0.5-1.2 (-1.5) mm diam., ± flat, the thalline margin prominent, persistent, smooth to crenulate, often nodular. Disc flat or slightly convex, greyish yellow, sometimes darkening when old. Epithecium yellow-brown, granular, hymenium 50-75 μm tall, I+ blue, hypothecium hyaline. Interascal tissue of paraphyses 1.5-2.5 µm diam., sometimes branched near the tips, the apices slightly swollen, ± cylindrical or clavate, to ca 3 µm diam. Asci (35-) 40-63 x 16-23 µm, clavate, with a conspicuous apical cap which strongly blues in iodine in its basal part and with a distinct apical cushion, (12-) 16- to 32-spored. Ascospores 9-13 (-15.) × 3-6.5 μm, cylindric-ellipsoidal to ellipsoidal, straight or curved, hyaline, aseptate, smooth-walled, without an epispore, gelatinous sheath or appendages.