panaeolus papilionaceus,also known as agaricus calosus

mushroom woodland nature fungus forest grass green leaf soil agaricus calosus papilionaceus autumn background beautiful biology brown cap close-up closeup colorful decomposition dung ecology environment forest floor fungi fungus grass green ground growth inedible mushrooms little macro meadow mushroom mycology natural natural beauty world nature organic outdoor outdoors panaeolus campanulatus retirugis sphinctrinus pasture petticoat mottlegill wild