(Also Fungi Imperfecti.) A non-phylogenetic category originally created for fungi with no known sexual stage; the category still includes fungi with no known sexual stage, but it also includes the asexual stages of various fungi now known to have a sexual stage in the Ascomycotina or Basidiomycotina. Found on http://ppathw3.cals.cornell.edu/glossary/Defs_D.htm