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.

Thallus endophloeodal, olivaceous, often eroded and appearing whitish or greyish, in scattered, irregular patches or bands, 0.5-2.5 cm diam. Perithecia emergent, discrete rarely 2-3-confluent, minute 0.05-0.4 mm diam., rounded, hemispherical to ± flattened centrally, black, matt. Ostiole central, gaping. Ascospores uniseriate, ovoid to broadly ellipsoid or rarely lemon-shaped, 15.3-17.0 × (6.8-)8.3-10.2 µm. Chemistry: UV+ orange substance, UV+ green substance (UV+ blue after charring), UV+ violet substance after charring.