Hypocrea rufa

Sexual or teleomorph stage of Trichoderma viride.

Cortical hyphae globose to polygonal, moderately thick-walled, with very abundant golden-brown intracellular pigment.

Peridial hyphae hyaline, lacking intracellular pigment, thin-walled and pseudoparenchymatous in appearance.

Asci cylindrical, with 8 ascospores that disarticulate within the ascus into 16 part-spores, uniseriate, thin-walled, up to 85 µm long and 4-5.5 µm wide, with basal croziers, inamyloid in Melzer's reagent.

Ascospores dimorphic: some subglobose and others short cylindrical, hyaline, moderately verrucose-walled, with very faint granular internal content.