Thallus lemon-yellow to yolk-yellow, mustard to brown-yellow, ± olive-greenish in shade, dull, granular to verrucose-areolate, the granules to 0.2 mm broad but frequently flattened and forming masses to 5 mm broad, in groups, the colour very variable. Apothecia to 1.5 mm wide, often crowded, sessile, flat to subconvex, margins entire or becoming granular-sorediate or entirely disappearing, flexuose or crenulate. Ascospores numerous (12-30 per ascus), colourless, oblong to ellipsoid, slightly curved, apices rounded, 9-15 × 4.5-6.5 µm. Chemistry: Calycin and pulvinic dilactone.