After karyogamy followed by meiosis, spores are produced exogenously in

In basidiomycetes, karyogamy and meiosis take place in the basidium producing four basidiospores. These basidiospores are exogenously produced on the basidium. Some common members of basidiomycetes are Agaricus (mushroom), Ustilago (smut) and Puccinia (rust fungus).