Ganodermataceae

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.

Haddowia is a genus of polypore fungi in the family Ganodermataceae. The genus was circumscribed by Belgian mycologist René Léopold Steyaert in 1972, with Haddowia longipes (previously Amauroderma) as the type species. The genus name honors William Robert Haddow, "in view of his careful studies in the genus Ganoderma.

Humphreya is a genus of four species of polypore fungi in the family Ganodermataceae. The genus was circumscribed by Belgian mycologist René Léopold Steyaert in 1972. He proposed Humphreya as a genus segregate from Ganoderma, typified by Ganoderma lloydi Pat. & Har., and included Ganoderma coffeatum and the newly described Humphreya endertii. H. eminii was transferred to the genus (from Ganoderma) by Leif Ryvarden in 1980.