Noun | 1. | ![]() fungus order - the order of fungi Basidiomycota, Basidiomycotina, subdivision Basidiomycota, subdivision Basidiomycotina - comprises fungi bearing the spores on a basidium; includes Gasteromycetes (puffballs) and Tiliomycetes comprising the orders Ustilaginales (smuts) and Uredinales (rusts) and Hymenomycetes (mushrooms, toadstools, agarics and bracket fungi); in some classification systems considered a division of kingdom Fungi family Polyporaceae, Polyporaceae - fungi that become corky or woody with age, often forming shelflike growths on trees family Fistulinaceae, Fistulinaceae - a family of fungi closely related to the family Polyporaceae except that the tubes on the undersurface of the cap are separate from each other |