High Quality Content by WIKIPEDIA articles! Amanita rubrovolvata, commonly known as the red volva Amanita, is a species of fungus in the Amanitaceae family. First described scientifically by the Japanese mycologist S. Imai in 1939, it is widely distributed in eastern Asia. The fungus produces small- to medium-sized mushrooms, with reddish-orange caps up to 6.5 mm (0.26 in) wide. The stems are up to 100 mm (3.9 in) tall, cream above the ring and cream to yellowish below it. The stem ends in a roughly spherical bulb at the base, which is covered with bright orange patches. Neither edibility nor toxicity have been established for the fungus, but it is suspected to be associated with neurological anomalies. Several molecular studies have confirmed the mushroom`s classification in the subgenus Amanita of the genus Amanita, along with closely related species such as A. muscaria.