The genus Hebeloma in the Rocky Mountain Alpine Zone

被引:29
作者
Cripps, Cathy L. [1 ]
Eberhardt, Ursula [2 ]
Schutz, Nicole [2 ]
Beker, Henry J. [3 ,4 ,5 ]
Evenson, Vera S. [6 ]
Horak, Egon [7 ]
机构
[1] Montana State Univ, Plant Sci & Plant Pathol, 119 Plant Biosci Bldg, Bozeman, MT 59717 USA
[2] Staatliches Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany
[3] Rue Pere Deken 19, B-1040 Brussels, Belgium
[4] Univ London, Royal Holloway Coll, Egham, Surrey, England
[5] Plantentuin Meise, Nieuwelaan 38, B-1860 Meise, Belgium
[6] Sam Mitchel Herbarium Fungi, Denver Bot Garden, 909 York St, Denver, CO 80206 USA
[7] Univ Innsbruck, Inst Microbiol, Techikerstr 25,6th Floor, A-6020 Innsbruck, Austria
基金
美国国家科学基金会;
关键词
AH Smith; Arctic-alpine; ectomycorrhizal; fungal biodiversity; Hymenogastraceae; ITS; systematics; CRUSTULINIFORME COMPLEX; NETWORKS; IDENTIFICATION; CONSEQUENCES; SYSTEMATICS; MYCORRHIZAL; AGARICALES; PATTERNS; TAXONOMY; TOOL;
D O I
10.3897/mycokeys.46.32823
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
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 degrees-45 degrees 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: Hebeloma alpinum, a aurantioumbrinum, H. dunense, H. hiemale, H. marginatulum, H. mesophaeum, H. nigellum, H. oreophilum, H. subconcolor, H. spetsbergense, H. vaccinum, and H. velutipes. Hebeloma hygrophilum 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 a alpinicola, H. avellaneum, and a 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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页码:1 / 54
页数:54
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