| Noun | 1. | Polyporus squamosus - a fungus with a lateral stalk (when there is a stalk) and a scaly cap that becomes nearly black in maturity; widely distributed in the northern hemisphere polypore, pore fungus, pore mushroom - 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 genus Polyporus, Polyporus - type genus of the Polyporaceae; includes important pathogens of e.g. birches and conifers |