Saprobic on plant stems or wood in terrestrial habitats, or parasitic on other fungi. Sexual
morph: Ascomata perithecial, gregarious or solitary, superficial, black, semi-immersed becoming
erumpent through bark of host, ovoid to subglobose, carbonaceous, tuberculate, glabrous or with
hairs, laterally collapsing when dry, sometimes with a short neck with or without ostioles or
quellk├Ârper. Peridium carbonaceous or membranaceous, composed of three layers, outer layer
comprising dark tissue, carbonaceous; middle layer comprising dark brown to brown cells of textura
angularis, membranaceous and the inner layer comprising hyaline cells of textura prismatica,
membranaceous. Paraphyses numerous, filamentous, septate, unbranched. Asci polysporous,
unitunicate, thin-walled, clavate to cylindrical, long pedicellate, apex blunt, without a visible
discharge mechanism. Ascospores crowded, hyaline, cylindrical to allantoid, slightly
curved, aseptate, smooth-walled, mostly with guttules. Asexual morph: Undetermined.