木质小孔真菌；属于p或b家族的任何菌类，管和毛孔内有长着孢子的表面；果实体在成熟时通常为木本并是持久的。

• 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.