The phyla Ascomycota and Basidiomycota are both in the kingdom fungi. What structures are the basis for placing organisms in one or the other of this phyla?

The major phyla (sometimes called divisions) of fungi have been classified mainly on the basis of characteristics of their sexual reproductive structures. Currently, seven phyla are proposed: Microsporidia, Chytridiomycota, Blastocladiomycota, Neocallimastigomycota, Glomeromycota, Ascomycota, and Basidiomycota