Three new species in subsection supported by genealogical and phenotypic coherence.

is a subsection composed of species of ectomycorrhizal fungi belonging to the hyperdiverse and cosmopolitan genus (Russulales). Species of are recognized by their fishy or shrimp odor, browning context, and a green reaction to iron sulfate. However, species delimitation has traditionally relied on morphology and analysis of limited molecular data.

Many were named, but few are current: The of Hesler, Smith, and coauthors.

During the 1970s and 1980s, L. R. Hesler and A.

Does One Size Fit All? Variations in the DNA Barcode Gaps of Macrofungal Genera.

The nuclear ribosomal internal transcribed spacer (nrITS) region has been widely used in fungal diversity studies. Environmental metabarcoding has increased the importance of the fungal DNA barcode in documenting fungal diversity and distribution. The DNA barcode gap is seen as the difference between intra- and inter-specific pairwise distances in a DNA barcode.

Re-Valuation of the Taxonomic Status of Species within the Complex.

The taxonomy of and closely allied species is addressed using morphological and molecular data (nrITS and nrLSU DNA). The holotypes of and and the isotype of were studied and sequenced. Our results suggest the synonymy between and as well as that between and .

Old but not obsolete: A new life for some of Murrill's () names.

William Alphonso Murrill was an American mycologist of the early 20th century. He described 1453 new species of Agaricales, Boletales, and Polyporales. Within these were 44 taxa that he described as or that he recombined into .