Term: albatrellus ovinus: a fungus with a whitish often circular cap and a white pore surface and small pores and a white central stalk; found under conifers; edible but not popular
Broader: polypore: woody pore fungi; any fungus of the family Polyporaceae or family Boletaceae having the spore-bearing surface within tubes or pores; the fruiting bodies are usually woody at maturity and persistent | Unrelated: ivory nut: nutlike seed of a South American palm; the hard white shell takes a high polish and is used for e.g. buttons