New and rare taxa of Russula from Greenland
Persoonia - Molecular Phylogeny and Evolution of Fungi , Volume 14 - Issue 4 p. 509- 517
A new species and a new variety of Russula based on a number of annotated collections, photographs and field observations are described. Russula violaceoincarnata Knudsen & Borgen, spec. nov., presumably belongs in section Polychromae Maire and is associated with Betula and Salix in southwest Greenland. Russula claroflava var. viridis Knudsen & Borgen, var. nov., is associated with Betula and known from Greenland and Norway. Russula maculata Quél. ssp. alpina (Sing.) Knudsen & Borgen, stat. nov., is proposed and reported from Greenland, Svalbard and Siberia, and R. citrinochlora Sing. and R. consobrina Fr. are reported as new to Greenland.
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Knudsen, H, & Borgen, T. (1992). New and rare taxa of Russula from Greenland. Persoonia - Molecular Phylogeny and Evolution of Fungi, 14(4), 509–517.