Polyporales families

The Polyporaceae () are a family of poroid fungi belonging to the Basidiomycota. The flesh of their fruit bodies varies from soft (as in the case of the dryad's saddle illustrated) to very tough. Most members of this family have their hymenium (fertile layer) in vertical pores on the underside of the caps, but some of them have gills (e.g. Panus) or gill-like structures (such as Daedaleopsis, whose elongated pores form a corky labyrinth). Many species are brackets, but others have a definite stipe – for example, Polyporus badius.

The Meripilaceae are a family of fungi in the order Polyporales. The family was circumscribed by Swiss mycologist Walter Jülich in 1982 with Meripilus as the type genus. A 2008 estimate placed 7 genera and 57 species in Meripilaceae. , Index Fungorum accepts 74 species in the family.

The Ganodermataceae are a family of fungi in the order Polyporales. , Index Fungorum accepts 8 genera and 300 species in the family. The family was circumscribed by Dutch mycologist Marinus Anton Donk in 1948 to contain polypores with a double spore wall. The inner wall is verruculose (with moderate-sized growths) to ornamented, thickened and usually coloured, while the outer wall is thin and hyaline.

The Fomitopsidaceae are a family of fungi in the order Polyporales. Most species are parasitic on woody plants, and tend to cause brown rots. The name comes from Fomitopsis (meaning "looking like Fomes") + -aceae (a suffix used to form taxonomic family names).

The Sparassidaceae are a family of fungi in the order Polyporales. The family was circumscribed by German botanist Wilhelm Herter in 1910 to contain the genus Sparassis. Sparassiella was added to the family in 1964. , Index Fungorum accepts 10 species in the Sparassidaceae.

The Meruliaceae are a family of fungi in the order Polyporales. According to a 2008 estimate, the family contains 47 genera and 420 species. , Index Fungorum accepts 645 species in the family.

The Phanerochaetaceae are a family of mostly crust fungi in the order Polyporales.

The Xenasmataceae are a family of crust fungi in the order Polyporales. The family was circumscribed in 1966 by German mycologist Franz Oberwinkler with Xenasma as the type genus. , Index Fungorum accepts 28 species in the family. Xenasmataceae fungi grow as saprobes on fallen wood and are known primarily from temperate areas.

The Cystostereaceae are a family of fungi in the order Polyporales. The family was circumscribed by Swiss mycologist Walter Jülich in 1982. , Index Fungorum accepts 6 genera and 18 species in the family.

The Steccherinaceae are a family of about 200 species of fungi in the order Polyporales. It includes crust-like, toothed, and poroid species that cause a white rot in dead wood.

The Gelatoporiaceae are a small family of crust fungi in the order Polyporales. The family was circumscribed in 2017 by mycologists Otto Miettinen, Alfredo Justo and David Hibbett to contain the type genus Gelatoporia and three other related genera, Cinereomyces, Obba, and Sebipora.

The Irpicaceae are a family of mostly polypores and crust fungi in the order Polyporales.

The Hyphodermataceae are a family of fungi in the order Polyporales. It contains the genera Hyphoderma and Intextomyces.