Phylogram showing the interspecific relationships under the genus Hygrophorus inferred from a LSU dataset using IQ-tree. Sequences of Cantharocybe gruberi were selected as outgroups. Bootstrap values greater than 50% are indicated around the branches. For downloaded sequences, specimen names and GenBank accession numbers are presented; for newly-generated sequences, species names and specimen vouchers are listed. Four newly-described species’ sequences are highlighted in colour; sequences with quotation marks are incorrect names.