1) Family polyporaceae 2) Fungus family 
The Polyporaceae are a family of bracket fungi belonging to the Basidiomycota. The flesh of their fruiting 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....
A class of basidiomycetous fungi, order aphyllophorales, living in decaying plant matter and timber. ... (12 Dec 1998) ... 
Polyporaceae is a family of fungi that become corky or woody with age, often forming shell-like growths on trees.
[n] - fungi that become corky or woody with age, often forming shelflike growths on trees
family Polyporaceae noun fungi that become corky or woody with age, often forming shelflike growths on trees