Calonarius xanthodryophilus

Calonarius xanthodryophilus is a species of fungus in the family Cortinariaceae.

Taxonomy
The species was described in 2011 by the mycologists Dimitar Bojantchev and R. Michael Davis who classified it as Cortinarius xanthodryophilus.

In 2022 the species was transferred from Cortinarius and reclassified as Calonarius xanthodryophilus based on genomic data.

Description
The mushroom cap is 6-10 cm wide, convex then flat or uplifted, and yellow then yellow-brown. The gills are notched, crowded, yellow then brown as the spores mature. The stalk is 5–10 cm tall and 1.5–3 cm wide, club-shaped, and sometimes tinted blue.

It should not be consumed due to its similarity to deadly poisonous species.

Habitat and distribution
It is native to North America.