Thallus bright citrine yellow, areolate-cracked, areolae 0.4-0.8 mm wide and 0.35-0.5 mm thick, rounded to irregular, subconvex, separated by very thin cracks, and closely contiguous to ± dispersed. Apothecia rather sparse, solitary, immersed, 0.3-0.6 mm diam., brown-black, immarginate. Epithecium yellow-brown to 35 µm thick. Hypothecium pale, 50-75 µm thick. Paraphyses strongly conglutinate, apices clavate to 3.5 µm diam. Hymenium colourless 90-100 µm tall. Asci clavate, 75-85 × 20-25 µm. Ascospores 17-21 × 11-14 µm.

Thallus sulphur-yellow to green-yellow, granular, continuous, rimose-areolate, prothallus blackish, saxicolous. Apothecia cryptolecanorine to lecanorine, innate to adnate or sessile, scattered or frequent and contiguous, to 0.5 mm diam., disc brown-black or black, concave to plane, margins entire, concolorous with thallus. Hymenium 120-150 µm tall, upper parts inspersed. Epihymenium red-brown, with a fine, granular epipsamma. Hypothecium colourless. Ascospores of -type, asci often only with with 4-6 spores, torus very thinly developed, 20-34 × 11-17 µm. Chemistry: Zeorin, O-methyl- dichlornorlichexanthone.