Thallus epiphloeodal in broad patches, 4-6 cm diam., continuous to ± deeply and irregularly areolate-cracked, cortex pale yellowish-white to olivaceous, subverrucose, rather roughened, often eroded. Peritheciarather few, scattered, 1 per areole, immersed, often inconspicuous, to submergent or eroded leaving small pits, 0.1-0.4 mm diam., concave, flat to rarely subconvex, black, shining or ± obscured by a thin covering of cortical or bark cells. Ostiole prominent, gaping, with a distinct margin. Ascospores 4-locular, oblong-ovoid, (13.6-)17-20(-23) × (5.1-)6.8-8.3 µm. Chemistry: UV+ orange, UV+ bright blue-grey after charring, UV+ quench substance, UV+ grey after charring.