Despite the fact that Fungi Deuteromycetes is no longer recognised as a taxon, many of the fungi it included are yet to be classified in the current fungal classification. This is because most fungi are classified based on the fruiting bodies and spores produced during sexual reproduction, yet Deuteromycota individuals have been reported to reproduce purely asexually or produce no spores.Mycologists are the only people who research living creatures who use a dual naming system. Article 59 of the International Code of Botanical Nomenclature (which governs the name of plants and fungi) previously allowed dual naming; however, this was removed in the 2011 update of the Code.A name for an asexually reproducing fungus was regarded as a form of taxon in the previous system. For example, Aspergillus niger, a common and industrially important mould, has no known sexual cycle. As a result, Aspergillus niger is classified as a form taxon. Isolates of its near relative, Aspergillus nidulans, on the other hand, revealed it to be the anamorphic stage of a teleomorph known as Emericella nidulans. When a teleomorphic stage is identified, it will take precedence over an anamorph's name. As a result, the previously classified Aspergillus species have been renamed Emericella nidulans.