The Veiled Species of Hebeloma in the Western United States

Smith, Alexander H.; Evenson, Vera; Mitchel, Duane H.

doi:10.3998/mpub.12590

Cited by 18 publications

(14 citation statements)

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“…Collections from the alpine that are very hoary and dark brown have been misinterpreted as H.bruchetii Bon (Miller and Evenson 2001) before molecular techniques; H.bruchetii , first described as an alpine species, has now been synonymized with H.mesophaeum and should have smaller spores. Hebelomamarginatulum is mentioned as a subalpine species (in Idaho) by Smith et al (1983) who described two varieties (ver. fallax, var.…”

Section: Taxonomymentioning

confidence: 99%

“…Beker and co-workers (2016) list 25 species occurring in arctic or alpine habitats, 14 of which appear (almost) restricted to these habitats; others also occur in a variety of habitats from subalpine or boreal with coniferous and hardwood trees right down to sand dunes where they grow with dwarf Salix . The veiled species of Hebeloma in Western North America have been treated in a monograph by Smith et al (1983), but few (if any) of their collections are from above treeline, although many are from high elevations in the Rocky Mountains. While recent work on the genus Hebeloma in Europe now provides a basis for comparison of morphological and molecular data for a significant number of species and make possible comparisons of distribution patterns (Vesterholt 2005; Beker et al 2016), much more work is needed before we will have a complete picture of the different species that occur on the different continents and their distribution across those continents.…”

Section: Introductionmentioning

confidence: 99%

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The genus Hebeloma in the Rocky Mountain Alpine Zone

Cripps¹,

Eberhardt²,

Schütz³

et al. 2019

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Numerous taxa of Hebeloma have been reported in association with Salix, Dryas, and Betula 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. Here we report 16 species of Hebeloma from the Rocky Mountain alpine zone from some of the lowest latitudes (latitude 36°–45°N) and highest elevations (3000–4000 m) for arctic-alpine fungi in the northern hemisphere. Twelve of these species have been reported from arctic-alpine habitats in Europe and Greenland and are now molecularly confirmed from the Middle and Southern Rockies, greatly expanding their distribution. These are: Hebelomaalpinum, H.aurantioumbrinum, H.dunense, H.hiemale, H.marginatulum, H.mesophaeum, H.nigellum, H.oreophilum, H.subconcolor, H.spetsbergense, H.vaccinum, and H.velutipes. Hebelomahygrophilum is known from subalpine habitats in Europe, but was never recorded in arctic-alpine ecology. Three species recorded from the Rockies, but as yet not reported from Europe, are H.alpinicola, H.avellaneum, and H.excedens. The last two have never previously been reported from an arctic-alpine habitat. For all three of these species, the holotypes have been studied morphologically and molecularly, and have been incorporated into the analysis.

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Section: Taxonomymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The genus Hebeloma in the Rocky Mountain Alpine Zone

Cripps¹,

Eberhardt²,

Schütz³

et al. 2019

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“…Smith et al (1983) described 10 varieties of H. mesophaeum in their book based on morphological and anatomical differences especially in the size and shape of the cheilocystidia. In H. mesophaeum, clavate, filamentous, cylindrical, sub-cylindrical and most (Smith et al, 1983). But as far as shape and types of cheilocystidia are concerned the authors' variety is closely related to H. mesophaeum var.…”

Section: Discussionmentioning

confidence: 99%

Phylogeny and Taxonomy of Hebeloma theobrominum and H. mesophaeum from Western Himalaya

Razaq¹,

Ilyas²,

Khalid³

2017

IJAB

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This study deals with the molecular systematics of Asian collections of Hebeloma theobrominum and H. mesophaeum which have not been previously reported from any Himalayan part of the world, and are new to Pakistan. Both were identified using morpho-anatomical and molecular characterization. The target rDNA of both species was amplified by using universal fungal primers. In phylogenetic analysis, both species distinctly clustered with their respective groups. These both species have been described first time from Asia using ITS-rDNA barcoding. The sequences of both species were compared with those of same European species from the GenBank. These species clustered with European species in phylogenetic tree proving their cosmopolitan distribution.

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“…As a result accepting Anamika as a genus would render Hebeloma polyphyletic. Furthermore the primary distinguishing morphological character for Anamika is the presence of pleurocystidia, which typically are lacking in Hebeloma species (Smith et al 1983, Vesterholt 2005). Yet there are several Australasian Hebeloma species that are pleurocystidiate and cluster in a well-supported clade with the species of Anamika (FIG.…”

Section: Discussionmentioning

confidence: 99%

A SamoanHebelomawith phylogenetic ties to the western Pacific

Kropp

2015

Mycologia

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Hebeloma ifeleletorum is described as a new species from American Samoa. Based on analyses of ITS and combined nLSU-ITS datasets H. ifeleletorum clusters with but is distinct from described species that have been placed in the genus Anamika by some. The phylogenetic relationship of H. ifeleletorum to the genus Anamika from Asia and to other species from Australia and New Caledonia suggests that H. ifeleletorum has origins in the western Pacific.

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The Veiled Species of Hebeloma in the Western United States

Cited by 18 publications

References 0 publications

The genus Hebeloma in the Rocky Mountain Alpine Zone

The genus Hebeloma in the Rocky Mountain Alpine Zone

Phylogeny and Taxonomy of Hebeloma theobrominum and H. mesophaeum from Western Himalaya

A SamoanHebelomawith phylogenetic ties to the western Pacific

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