1. Any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus
   "Penicillium, used to make antibiotics, is an ascomycetous fungus";
   - ascomycete

Derived forms: ascomycetous fungi

Type of: fungus

Part of: Ascomycota, Ascomycotina, subdivision Ascomycota, subdivision Ascomycotina