Similarities in structure, symmetry, and size of asci and ascospores indicate a phylogenetic relationship between the Endomycetales (Endomycetes, Hemiascomycetes) and the Eurotiales and Erysiphales of the Ascomycetes. Their anamorphs which form catenate conidia from meristematic zones and which are released by disjunctive structures, are also similar. The structures in the septa of hyphal Endomycetales termed micropores or plasmodesmata, are considered to be disjunctive pegs.