| gymnopilus | (n) a genus of fungus characterized by the orange color of the spore deposit, Syn. genus Gymnopilus |
| gymnopilus spectabilis | (n) a fungus with a brownish orange fruiting body and a ring near the top of the stalk; the taste is bitter and the flesh contains psilocybin and psilocin |
| gymnopilus validipes | (n) a poisonous fungus with a dry cap and a cortina that does not leave much of a ring on the robust stalk |
| gymnopilus ventricosus | (n) a giant fungus of the Pacific Northwest; has a very thick stalk and the cortina leaves a ring high up on the stalk |