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New species and reports of Cuphophyllus from northern North America compared with related Eurasian species.

https://arctichealth.org/en/permalink/ahliterature306876
Source
Mycologia. 2020 Mar-Apr; 112(2):438-452
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Author
Andrus Voitk
Irja Saar
D Jean Lodge
David Boertmann
Shannon M Berch
Ellen Larsson
Author Affiliation
Foray Newfoundland and Labrador, 13 Maple Street, Humber Village, NL A2H 2N2, Canada.
Source
Mycologia. 2020 Mar-Apr; 112(2):438-452
Language
English
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Abstract
This study describes four gray or brown species of Cuphophyllus (Hygrophoraceae, Agaricales), two of them new species, restricted to arctic-alpine and northern boreal zones of North America, and relates them morphologically and phylogenetically using multigene and nuc rDNA internal transcribed spacer ITS1-5.8S-ITS (ITS barcode) analyses to their similar, known counterparts. Cuphophyllus cinerellus, epitypified here, is shown to be a pan-palearctic species with sequence-confirmed collections from Fennoscandia and easternmost Asia. Occupying a similar habitat in the Nearctic is its sister species, the morphologically similar but novel C. esteriae, so far known only from eastern North America, including Greenland. Sister to the C. cinerellus-C. esteriae lineage, and known only from boreal raised Sphagnum bogs in Newfoundland, is a new medium-sized light cinereous brown species, C. lamarum. It has a yellow stipe but is phylogenetically distant from the yellow-stiped European C. flavipes and its North American sister species, Hygrophorus pseudopallidus. As cryptic speciation was discovered within C. flavipes, we lecto- and epitypify the name and transfer H. pseudopallidus to Cuphophyllus based on ITS analysis of the holotype. We also transfer the small European Hygrocybe comosa to Cuphophyllus based on morphology. Cuphophyllus hygrocyboides is reported from North America with the first sequence-confirmed collections from arctic-alpine British Columbia and Greenland. In addition, sequencing the holotype of C. subviolaceus identifies it as the sister species to the putative C. lacmus. Both species seem to have an intercontinental distribution. In total, we add new sequences to GenBank from 37 Cuphophyllus collections, including the holotypes of C. hygrocyboides and C. subviolaceus, the two new epitypes, and the two novel species.
PubMed ID
32074023 View in PubMed
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New species and reports of Cuphophyllus from northern North America compared with related Eurasian species.

https://arctichealth.org/en/permalink/ahliterature311040
Source
Mycologia. 2020 Mar-Apr; 112(2):438-452
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Author
Andrus Voitk
Irja Saar
D Jean Lodge
David Boertmann
Shannon M Berch
Ellen Larsson
Author Affiliation
Foray Newfoundland and Labrador, 13 Maple Street, Humber Village, NL A2H 2N2, Canada.
Source
Mycologia. 2020 Mar-Apr; 112(2):438-452
Language
English
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Keywords
Agaricales - classification - cytology - genetics - isolation & purification
Arctic Regions
Classification - methods
Fruiting Bodies, Fungal
Genes, Fungal
Multilocus Sequence Typing
Mycorrhizae
North America
Plantago - microbiology
Species Specificity
Spores, Fungal - cytology
Abstract
This study describes four gray or brown species of Cuphophyllus (Hygrophoraceae, Agaricales), two of them new species, restricted to arctic-alpine and northern boreal zones of North America, and relates them morphologically and phylogenetically using multigene and nuc rDNA internal transcribed spacer ITS1-5.8S-ITS (ITS barcode) analyses to their similar, known counterparts. Cuphophyllus cinerellus, epitypified here, is shown to be a pan-palearctic species with sequence-confirmed collections from Fennoscandia and easternmost Asia. Occupying a similar habitat in the Nearctic is its sister species, the morphologically similar but novel C. esteriae, so far known only from eastern North America, including Greenland. Sister to the C. cinerellus-C. esteriae lineage, and known only from boreal raised Sphagnum bogs in Newfoundland, is a new medium-sized light cinereous brown species, C. lamarum. It has a yellow stipe but is phylogenetically distant from the yellow-stiped European C. flavipes and its North American sister species, Hygrophorus pseudopallidus. As cryptic speciation was discovered within C. flavipes, we lecto- and epitypify the name and transfer H. pseudopallidus to Cuphophyllus based on ITS analysis of the holotype. We also transfer the small European Hygrocybe comosa to Cuphophyllus based on morphology. Cuphophyllus hygrocyboides is reported from North America with the first sequence-confirmed collections from arctic-alpine British Columbia and Greenland. In addition, sequencing the holotype of C. subviolaceus identifies it as the sister species to the putative C. lacmus. Both species seem to have an intercontinental distribution. In total, we add new sequences to GenBank from 37 Cuphophyllus collections, including the holotypes of C. hygrocyboides and C. subviolaceus, the two new epitypes, and the two novel species.
PubMed ID
32074023 View in PubMed
Less detail