Hello, Above all, thank you to excuse my bad English. J have found this species in a park under a willow, in the North-East of France. Largest has a hat diameter 105x100mm; the height of the foot 75mm, diameter 65 X 40mm. Without particular taste, those release in all the part a strong unpleasant odor, naphthaline kind. Its consistency is a little rubbery, with traces of cortine. It is deprived of ring, bulb and volva. The spores are brown rusts, 10x5.5µ. Thanks a lot
Not a Champignon (i.e., Agaricus sp.): Agaricus has a darker, chocolate-brown spore print and a ring on the stipe among other things. You have a species of Cortinarius.
