marasmius oreades, scotch bonnet, also known as fairy ring mushroom

forest jungle woods agaricales agaricomycetes background basidiomycota cap cell circle closeup edible environment fairy ring mushroom food fresh fungi fungus growth hat healthy lepidella macro marasmiaceae marasmius oreades moss mottled mousseron mushrooms mycology nature organic pattern phenomenon poisonous ramaria raw scale scotch bonnet season stem stipe umbrella vegetable vegetarian white bonnetalso known champignon also