Pleurotus ostreatus
Honey mushroom ("Armillaria spp.") is a white-rot fungus notorious for attacking living trees. "Pleurotus ostreatus" and other oyster mushrooms are commonly cultivated white-rot fungi, but "P. ostreatus" is not parasitic and will not grow on a living tree, unless it is already dying from other causes. Other white-rot fungi include the turkey tail, artist's conk, and tinder fungus.