sulphur knight or gas agaric- different stages

agaric are autumn background basidiomycete botany cap closeup collecting different ecology ecosystem fall finland fixed fixes forest fresh fungi fungus gas hat hunting ingredient knight mushroom mushrooming mushrooms mycology natural nature organic photo photograph picture plank plant poisonous raw research scaber season seasonal smell specimens stages stalk stem sulfur sulphur sulphureum texture toxic tricholoma vegetation white wood wooden yellow