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    Description

    The leccinoid fungi are boletes and related sequestrate mushrooms (Boletaceae, Basidiomycota) that have traditionally been placed in Leccinum, Boletus, Leccinellum, and a handful of other less familiar genera. These mushrooms generally feature scabers or scaber-like dots on the surface of the stipe, and they are often fairly tall and slender when compared with other boletes. They are ectomycorrhizal fungi and appear to be fairly strictly associated with specific trees or groups of related trees. In the present study, we investigate the phylogenetic relationships among the leccinoid fungi and other members of the family Boletaceae using portions of three loci from nuc 28S rDNA (28S), translation elongation factor 1-α (TEF1), and the RNA polymerase II secondlargest subunit (RPB2). Two DNA data sets (combined 28S-TEF1 and 28S-TEF1-RPB2), comprising sequences from nearly 270 voucher specimens, were evaluated using two different phylogenetic analyses (maximum likelihood and Bayesian inference). Five major clades were obtained, and leccinoid fungi appeared in four of them. Taxonomic proposals supported by our results, representing a broadly circumscribed Leccinum that includes several sequestrate genera, along with Leccinellum, are made.

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    Citation

    Kuo, Michael; Ortiz-Santana, Beatriz. 2020. Revision of leccinoid fungi, with emphasis on North American taxa, based on molecular and morphological data. Mycologia. 112(1): 197-211. https://doi.org/10.1080/00275514.2019.1685351.

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    Keywords

    Basidiomycota, Boletaceae, Octaviania, Chamonixia, Leccinellum, Leccinum, Rossbeevera, Turmalinea, 10 new taxa

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https://www.fs.usda.gov/treesearch/pubs/60533