Calonarius

The genus was created in 2022 when the family Cortinariaceae, which previously in then-recent phylogenetic studies contained only the one genus of Cortinarius,^{[note 1]} was reclassified based on genomic data and split into the genera of Cortinarius, Aureonarius, Austrocortinarius, Calonarius, Cystinarius, Hygronarius, Mystinarius, Phlegmacium, Thaxterogaster and Volvanarius.^[2]

The genus is further divided with subgenus and section classifications:^[2]

• Calonarius subgenus Calonarius includes the sections: Calonarius, Humolentes and Rufoolivacei.
• Calonarius subgenus Calochroi includes the sections: Calochroi, Nymphicolores, Platypodes and Sodagniti.
• Calonarius subgenus Fulvi includes the sections: Fulvi, Atrovirentes, Aureopulverulenti, Dibaphi and Splendentes.

The name Calonarius derives from the combination of the genus name Cortinarius and the section name Calochroi in which these species were placed prior to the reclassification.^[2]