Type studies and fourteen new North American species of Cortinarius section Anomali reveal high continental species diversity.

Section is a species-rich group in North America belonging to , the most diverse genus in the Agaricales. This study is based on extensive morphological investigations and molecular methods using 191 nrDNA ITS sequence data and recovered 43 phylogenetic species from which 14 are described here as new to science. We sequenced ten type materials which belonged to eight species. The synonymy of with and with is proposed here. The North American occurrence of four species ( , , , and ), so far known only from Europe, was confirmed. Thirteen species were not formally described here due to lack of relevant information. An identification key to the known species in North America is provided.

Funder

Funder name	Awards
eötvös loránd tudományegyetem	TKP2020-IKA-05
Hungarian Ministry for Innovation and Technology	ÚNKP16-3; ÚNKP 17-3
Eötvös Loránd University
D. E. Stuntz Memorial Foundation
Emberi Eroforrások Minisztériuma, Hungary	New National Excellence Program (ÚNKP-16–3) - New National Excellence Program (ÚNKP-17–3)
National Research, Development and Innovation Office, Hungary	ELTE Thematic Excellence Programme 2020 (TKP2020-IKA-05)