Thallus crustose, smooth, shining, ± varnish-like. Photobiont green, . Ascocarps in form of pseudothecia, united in a ± rounded stroma, separated by thin lateral walls and with a common upper wall. Pseudoparaphyses indistinct. Ascospores brown, 1-septate to several-septate, oval-ellipsoid, 8 per ascus.

Thallus crustose, epi- or endophloeodal, whitish, greyish, pale greenish-olive, yellow-olive to ochraceous, sometimes spotted with pigmentation, shining or matt, some species with scattered, minute, maculae (×10 lens), ± effigurate, often delimited by a thin black, irregular prothallus. Photobiont green, . Ascocarps scattered or crowded, solitary or 2-3-confluent, immersed to ± emergent, globose, subglobose or ± flattened, ascocarp wall composed of an outer, generally carbonised involucrellum and an inner brownish exciple, some species columellate. Ostiole apical, vertical, to marginal and ± horizontal, depressed to papillate. Interthecial hyphae persistent, not or rarely branched, not anastomosing, 1-2 µm thick, septate. Asci cylindrical-clavate to clavate, bitunicate. Ascospores becoming ± brown, 3-septate (rarely to 7-septate), thick walled, oblong-ellipsoid, biseriate, rarely uniseriate, 8 per ascus.