Anamorph: not known. Teleomorph: stromata absent. Ascomata perithecia, spherical to pyriform, usually ostiolate, the neck papillate to cylindrical, greenish or shining black, superficial, with scattered or whorled elongate dark smooth thick-walled hairs surrounding the ostiole, sometimes circinate at the tip. Peridium fairly thick and leathery, composed of several layers of very dark brown thick-walled angular cells. Interascal tissue absent. Asci formed from a basal fascicle, clavate, very thin-walled, without apical structures, evanescent, 8-spored. Ascospores fusiform, limoniform or ellipsoidal, at first hyaline and dextrinoid (staining brown in iodine), becoming pinkish, straw- or copper-coloured, aseptate, smooth, with two prominent apical germ pores, without a gelatinous sheath or appendages.