Four new species of (, ) with a note on .

Four new species are described. . grows in dry pine heaths on acidic, sandy soil. It is close to , another pine-associated species, but differs by smaller spores, an initially rose-coloured instead of violet flesh in fresh basidiomata and a mild taste. . grows in coniferous forests on calcareous soil. It shares a general morphology with , which also is its closest relative. It differs by having smaller and slenderer basidiomata and by the yellowish ochraceous colour of flesh and spines in dried specimens compared to the whitish or reddish brown colour seen in . . is another species with morphological and phylogenetic affinities to . However, it is associated with trees from whereas is associated with . . is yet another species that associates with broadleaved trees. It seems to be a rare species, morphologically reminiscent of , and but it is phylogenetically close to . Sequences from the type specimens of , , , and are included in the analyses. Specimens given the provisional name "" in Sweden are now shown to be referable to . The analyses further showed that is close to . The new combination is proposed. and . are shown to be conspecific and, although their basionyms were simultaneously published, the name was only validated in a later publication. therefore takes priority and becomes a synonym. Nitare J, Ainsworth AM, Larsson E, Parfitt D, Suz LM, Svantesson S, Larsson K-H (2021). Four new species of (, ) with a note on . 233-254. doi: 10.3114/fuse.2021.07.12.