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.
View Article and Find Full Text PDFThe 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.
View Article and Find Full Text PDFThe 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 .
View Article and Find Full Text PDFWilliam 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 .
View Article and Find Full Text PDFThe species of have been little studied in Mexico, but have received attention as edibles and in trials to enhance production of edible fungi and tree growth through inoculation of seedlings with ectomycorrhizal fungi. Here we describe three new species of that are currently known only from Mexico. These species belong to separate sections of the genus: is a member of H.
View Article and Find Full Text PDFWe here announce the launch of the website https://hebeloma.org .
View Article and Find Full Text PDFThe genus Hebeloma is renowned as difficult when it comes to species determination. Historically, many dichotomous keys have been published and used with varying success rate. Over the last 20 years the authors have built a database of Hebeloma collections containing not only metadata but also parametrized morphological descriptions, where for about a third of the cases micromorphological characters have been analysed and are included, as well as DNA sequences for almost every collection.
View Article and Find Full Text PDFCharles Horton Peck described some 2700 species of North American fungi in the 19th and early 20th centuries. Among these were 31 species that he described as or that later authors recombined into . These 31 taxa have been analyzed morphologically and molecularly, as far as possible.
View Article and Find Full Text PDFThis is the first study exclusively dedicated to the study of in Greenland. It is based on almost 400 collections, the great majority of which were collected by three of the co-authors over a period of 40 years and were lodged in the fungarium of the Natural History Museum in Copenhagen. The material was identified using molecular and morphological methods.
View Article and Find Full Text PDFIn 1994 Corner published five new species within the genus , all having been collected on the Malay Peninsula between 1929 and 1930. Three of these species belong to the genus and with their vinaceous colored lamellae and spore print, when fresh, they belong to H. sect.
View Article and Find Full Text PDFNumerous taxa of have been reported in association with , , and in arctic-alpine habitats. However, species are notoriously difficult to delineate because morphological features overlap, and previously there was little reliable molecular data available. Recent progress in ITS-sequencing within the genus, coupled with an extensive database of parametrically described collections, now allows comparisons between species and their distributions.
View Article and Find Full Text PDFLactarius subg. Russularia is a large group of milkcaps occurring almost worldwide and dominant in many ecosystems. In this study we focus on new diversity, evolutionary relationships, divergence time, and origin of the subgenus.
View Article and Find Full Text PDFSpecies of Russula subsect. Xerampelinae are notoriously difficult to identify and name and have not been subject to molecular study. A group of species, referred to here as the R.
View Article and Find Full Text PDFHebeloma section Denudata includes the majority of the taxa commonly referred to as the Hebeloma crustuliniforme complex. In a recent paper we described in detail H. subsection Denudata and fifteen European species recognised within this subsection, using morphological and molecular methods.
View Article and Find Full Text PDFBetween 2002 and 2012 regular visits to the Carpathians were made and a number of Hebeloma spp. were collected from the alpine area. In total 44 collections were made that represent 11 species, two of which, Hebeloma grandisporum and H.
View Article and Find Full Text PDFThe nuclear ribosomal internal transcribed spacer (ITS) region is the formal fungal barcode and in most cases the marker of choice for the exploration of fungal diversity in environmental samples. Two problems are particularly acute in the pursuit of satisfactory taxonomic assignment of newly generated ITS sequences: (i) the lack of an inclusive, reliable public reference data set and (ii) the lack of means to refer to fungal species, for which no Latin name is available in a standardized stable way. Here, we report on progress in these regards through further development of the UNITE database (http://unite.
View Article and Find Full Text PDFThis chapter describes methods currently used for DNA barcoding of fungi, including some comments on the barcoding of aged herbarium material. The collecting procedures are focussed on macro-fungi. The laboratory methods are for medium-throughput DNA barcoding, targeted at the 96-well format, but without the assistance of robotics.
View Article and Find Full Text PDFStipitate stereoid fungi are Basidiomycetes with a stipe, a spathulate-to funnel-shaped pileus, a smooth hymenophore, and hyaline, smooth spores. Representatives of the genera Cotylidia, Cymatoderma, Muscinupta, Podoscypha and Stereopsis were subjected to molecular phylogenetic analyses based on nuclear ribosomal large subunit, 5.8S and ITS sequences.
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