About Entoloma rhodopolium (Fr.) P.Kumm.
The cap of Entoloma rhodopolium ranges from gray to tannish in color, is convex to umbonate in shape, and can grow up to 20 centimetres (8 inches) wide. Its gills are lighter in color, and they produce a pinkish spore deposit. The whitish stem can reach up to 13 cm long and 2 cm thick. The firm flesh is white, and may have a farinaceous scent. This species is poisonous, and causes serious gastrointestinal upset. It is often mistaken for the edible mushroom Entoloma sarcopum, and is one of the three fungi most commonly involved in mushroom poisoning cases in Japan. The other two commonly implicated species are Omphalotus japonicus and Tricholoma ustale. The toxic compounds muscarine, muscaridine, and choline have been isolated from this species.
