Order Polyporales Gäum.

This is the main group of the polypores but some are found in other orders. There are other mushroom types included here besides poroid forms. Four main clades (groups) have been recognized plus several smaller clades and genera. Justo et al. (2017) proposed a classification of 18 families plus 3 clades with informal names and a few unassigned taxa; this is a framework for further revision. Some poorly known families await further DNA analysis to place them and are not listed here (Justo et al. 2017). Much work remains to be done at the generic level. Some genera are polyphyletic and genus concepts and boundaries must be worked out. See the cited papers for complete list of genera. Selected genera are below (not all of these are recorded for Chicago Region).

The phlebioid clade contains members of Phanerochaetaceae, Meruliaceae, and Irpicaceae. Some (former) members of these families however fall outside this clade and are part of the so-called residual polyporoid clade. The members of the families were mixed together in DNA phylogenies.

1. phlebioid clade
   1. Phanerochaetaceae (Bjerkandera, Donkia, Hapalopilus, Phanerochaete, Phlebiopsis [Hjortstamia], Terana)
   2. Irpicaceae (Byssomerulius, Ceriporia, Gloeoporus, Irpex, Leptoporus, Trametopsis)
   3. Meruliaceae (Aurantiporus, Climacodon, Crustodontia, Hydnophlebia, Merulius, Mycoacia, Phlebia, Sarcodontia)
2. residual clade
   4. Steccherinaceae (Antrodiella, Etheirodon, Junghuhnia, Loweomyces, Mycorrhaphium, Nigroporus, Steccherinum)
   5. Cerrenaceae (Cerrena, Radulodon, Spongipellis in part but not its type S. spumeus)
   6. Panaceae (Cymatoderma sensu stricto, Panus)
   7. Hyphodermataceae (Hyphoderma sensu stricto)
   8. Meripilaceae (Meripilus, Rigidoporus sensu stricto)
   9. Podoscyphaceae (Abortiporus, Podoscypha, Pouzaroporia)
   10. hypochnicium clade (Hypochnicium, Bulbillomyces); and climacocystis clade (Climacocystis, Diplomitoporus, Rickiopora)
   11. unplaced: Spongipellis spumeus (type species not related to Sarcodontia)
3. core polyporoid clade
   12. Polyporaceae (Cerioporus, Cladomeris, Cryptoporus, Daedaleopsis, Datronia, Datroniella, Donkioporia, Favolus, Fomes, Funalia or Trametella, Ganoderma, Globifomes, Lentinus, Lopharia, Microporellus, Neofavolus, Perenniporia, Picipes, Polyporus, Trametes, Truncospora)
4. grifola clade
   13. Grifolaceae (Grifola)
5. gelatoporia clade
   14. Gelatoporiaceae (Cinereomyces, Gelatoporia, Obba, Sebipora)
6. antrodia clade
   15. Fomitopsidaceae (Antrodia, Buglossoporus, Daedalea, Fomitopsis includes Piptoporus, Niveoporofomes, Rhodofomes)
   16. Laetiporaceae (Laetiporus, Pachyma (Wolfiporia), Phaeolus)
   17. fibroporia+amyloporia clade (Amyloporia, Fibroporia, Rhodonia)
   18. Dacryobolaceae (Amylocystis, Dacryobolus, Jahnoporus, Oligoporus, Postia, Spongiporus)
   19. Sparassidaceae (Sparassis)
   20. unplaced genera: Anthoporia, Auriporia, Crustoderma, Gilbertsonia, Laricifomes, Piptoporellus, Pycnoporellus, Ryvardenia, Sarcoporia, Taiwanofungus
7. skeletocutis-tyromyces clade
   21. Incrustoporiaceae (Incrustoporia, Piloporia, Skeletocutis, Tyromyces)
8. ischnoderma clade
   22. Ischnodermataceae (Ischnoderma)