Sordariomycetidae
Sordariomycetidae is a large and diverse subclass of the Ascomycota, a phylum of fungi. This group is characterized by the presence of an ascocarp, which is a fruiting body that contains asci, the spore-producing cells. Within Sordariomycetidae, the ascocarp is typically a perithecium, a flask-shaped structure with a narrow opening called a ostiole. The asci themselves are usually cylindrical and contain eight ascospores, though variations exist.
The ecological roles of Sordariomycetidae are varied. Many are saprobes, playing a crucial role in the decomposition
Historically, the classification of Sordariomycetidae has undergone significant revision with the advent of molecular phylogenetic studies.