About Cortinarius trivialis J.E.Lange
Cortinarius trivialis is an inedible fungal species belonging to the genus Cortinarius. Its mushroom cap ranges from 3 to 12 cm (1.2 to 4.7 in) wide; it starts out grayish blue and later turns yellow-brown, and its shape shifts from convex to flat, sometimes with a shallow umbo. The gills are either adnate or adnexed, starting grayish blue and turning brown as spores mature. The stalk measures 5 to 15 cm (2 to 6 in) tall and 1 to 2 cm wide, is equal or tapered, and ranges in color from white to yellow. It bears a whitish partial veil on its upper section, which turns brown from contact with spores. As recently as 1991, this species was reported to be edible, but current European field guides classify it as poisonous. For many Cortinarius species, edibility is unknown, and they are not safe for consumption experimentation because some species in the genus are deadly poisonous. Species similar to Cortinarius trivialis include Cortinarius cliduchus and Cortinarius collinitus.
