Anamorph: not known. Teleomorph: stromata developing in rotten wood, effuse, the host surface melanized, dark grey to black, ostioles scattered, ± conical, slightly protruding from the stroma surface. Internal stromatal tissue poorly differentiated, composed of hyphae interspersed with degraded plant cells, not delimited by a brown to black zone line. Ascomata perithecia, 300-450 µm diam, 500-600 µm tall, ± globose, in small to extensive clusters within the stroma, sometimes compressed by the development of surrounding fruit-bodies. Peridium 10-15 µm thick, strongly melanized when mature, composed of intertwined hyphal tissue. Interascal tissue of simple paraphyses 2-3 µm diam, gradually tapering, rather thin-walled, not branched or anastomosed. Asci 85-100 x 3.5-5 µm, cylindrical, stipe 10-30 µm in length, the apex obtuse to truncate with an inconspicuous J+ ring, 8-spored. Ascospores arranged uniseriately, 7.5-8.5 x 3.5-4 x 3-3.5 µm, cylindric-ellipsoidal, slightly flattened laterally, the ends obtuse, pale to mid brown when mature, without a clearly defined germ slit, epispore thin, without a gelatinous sheath or appendages.