purple mushroom or cortinarius violaceus in the forest

nature leaf blue autumn mushroom flower fungus tree soil winter wildlife plant wood branch purple cortinarius violaceus forest genus agarics widespread species mushrooms poisonous cause acute tubulointerstitial nephritis lethal https: www single violet webcap veil grows leaves september season fungus dark mycology cortinarius violaceus violet webcap cort autumn fall food forest fresh fungi moss mushroom mushrooming mushrooms natural nature outdoor picking wild wood