Ascogeny

Production of heterogeneous sclerotia may facilitate hybridization of strains during subsequent ascogeny.

A species in its entirety can be recognized from characters derived from ascogeny and/or mitospore production.

A discarded hypothesis held that a second karyogamy event occurred in the ascogonium prior to ascogeny, resulting in a tetraploid nucleus which divided into four diploid nuclei by meiosis and then into eight haploid nuclei by a supposed process called brachymeiosis, but this hypothesis was disproven in the 1950s.