Thallus crustose, foliicolous, subcuticular ecorticate, effigurate or ± effuse. Photobiont green, species of Trentepohliaceae, probably . Perithecia conical or convex, base immersed in the thallus. Paraphyses branched and anastomosing. Asci ± cylindrical, ± thin-walled at maturity. Spores 8 per ascus, 1- or 3-septate, ± fusiform, colourless. Pycnidia of two types, one with bacillar, 1-septate conidia, the other with simple, fusiform conidia.

Thallus crustose, foliicolous, subcuticular, usually epiphyllous, ecorticate, effigurate, lobes distinct or entirely confluent. Photobiont green, . Perithecia convex to conical, totally exposed, partly immersed in the thallus, or totally covered by thallus tissue, perithecial wall K-, dimidiate or entire, usually differentiated into an outer wall (involucrellum) which is black or brown, and an inner wall which is black, brown or colourless. Paraphyses simple. Asci cylindrical or obclavate, thin-walled. Ascospores 8 per ascus, with 1-3 thin, transverse septa. Pycnidia convex. Conidiophores simple, forming conidia apically. Macroconidia simple or 1-7(-9)-septate, bacillar to filiform. Microconidia simple, ellipsoid to fusiform.