Anamorph: Colonies hairy, hyaline, becoming tinged brown to dark brown where conidia are produced. Mycelium immersed and superficial. Conidiophores micronematous or semi-macronematous, mononematous, straight or flexuous, unbranched, subhyaline to pale olive or brown, smooth, sparingly septate, 4-50/xm high, 0.5/xm wide. Conidiogenous cells discrete, subglobose to doliiform, 5-7/xm high, 3-5/xm wide. Conidia acropleurogenous, mainly pleurogenous, lenticular, pale brown to brown, with an equatorial germ slit, smooth, 5.5-8/,m diam, 3-4.5/xm wide.
Teleomorph: Ascostromata black, smooth, linear, immersed about three cells deep below the epidermis, 1-5 mm long, 0.2-0.6 mm wide, finally longitudinally splitting the covering cells and emerging through the opening; stromatic wall beneath and at the sides prosenchymatic, consisting of thick-walled, dark brown cells, 6-12/xm long, 2-3/xm wide, more or less arranged in rows; cells of the apical wall pseudoparenchymatous, thin-walled, 4-6/,m long. Perithecia sphaerical, often somewhat flattened at the base, 120-200/xm wide, with a papillate or shortly conical ostiole lined with hyaline periphyses; wall pseudoparenchymatic, 15-25/xm w!de; ostiole up to 40/*m wide. Asci sphaerical to cylindrical, 8-spored, thin-walled, unitunicate, 72-100/xm long, 10-17/,m wide. Ascospores hyaline, septate near the base, overlapping biseriate in the ascus, thin-walled, often unequally curved near the base, 19-30/xm long, 6-11/xm wide. Paraphyses hyaline, filamentous, 2-5 p,m wide. DISEASE: None as a primary pathogen of plants; frequently encountered as a secondary invader or as a saprophyte.