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<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.46.32823" ID-GBIF-Dataset="e546c2a6-4668-4253-b2e2-b462f23dab8c" ID-PMC="PMC6379322" ID-Pensoft-Pub="1314-4049-46-1" ID-PubMed="30787668" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1314-4049-46-1" ModsDocOrigin="MycoKeys 46" ModsDocTitle="The genus Hebeloma in the Rocky Mountain Alpine Zone" checkinTime="1555333436509" checkinUser="pensoft" docAuthor="Cripps, Cathy L., Eberhardt, Ursula, Schuetz, Nicole, Beker, Henry J., Vera S. Evenson, &amp; Horak, Egon" docDate="2019" docId="C5EF5565FDF9257D76591AB1AA9D8621" docLanguage="en" docName="MycoKeys 46: 1-54" docOrigin="MycoKeys 46" docSource="http://dx.doi.org/10.3897/mycokeys.46.32823" docTitle="Hebeloma alpinum Bruchet, Bull. Mens. Soc. Linn. Lyon 39 (6 suppl.): 68 1970" docType="treatment" docVersion="4" lastPageNumber="24" masterDocId="AC18AA047D78FFBFD06BFFFDFF948577" masterDocTitle="The genus Hebeloma in the Rocky Mountain Alpine Zone" masterLastPageNumber="54" masterPageNumber="1" pageNumber="24" updateTime="1668136151891" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>The genus Hebeloma in the Rocky Mountain Alpine Zone</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Cripps, Cathy L.</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Eberhardt, Ursula</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Schuetz, Nicole</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Beker, Henry J.</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Vera S. Evenson,</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Horak, Egon</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>MycoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2019</mods:date>
<mods:detail type="volume">
<mods:number>46</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>54</mods:end>
</mods:extent>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/mycokeys.46.32823</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/mycokeys.46.32823</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-4049-46-1</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="156202104" LSID="urn:lsid:plazi:treatment:C5EF5565FDF9257D76591AB1AA9D8621" httpUri="http://treatment.plazi.org/id/C5EF5565FDF9257D76591AB1AA9D8621" lastPageNumber="24" pageId="23" pageNumber="24">
<subSubSection pageId="23" pageNumber="24" type="nomenclature">
<paragraph pageId="23" pageNumber="24">
7.
<taxonomicName authority="J. Favre) Bruchet, Bull. Mens. Soc. Linn. Lyon 39 (6 suppl.): 68 (1970" authorityYear="1970" class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma alpinum" order="Agaricales" pageId="23" pageNumber="24" phylum="Basidiomycota" rank="species" species="alpinum">Hebeloma alpinum (J. Favre) Bruchet, Bull. Mens. Soc. Linn. Lyon 39 (6 suppl.): 68 (1970)</taxonomicName>
Figures 4A, 13, 23 (7)
</paragraph>
</subSubSection>
<subSubSection pageId="23" pageNumber="24" type="etymology">
<paragraph pageId="23" pageNumber="24">Etymology.</paragraph>
<paragraph pageId="23" pageNumber="24">
<taxonomicName genus="Velutipes" lsidName="Velutipes alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">alpinum</taxonomicName>
from the alpine.
</paragraph>
</subSubSection>
<subSubSection pageId="23" pageNumber="24" type="description">
<paragraph pageId="23" pageNumber="24">Description.</paragraph>
<paragraph pageId="23" pageNumber="24">
Cortina absent. Pileus 20-35 mm in diameter, convex to broadly domed, buff to pale brown, rarely brown, slightly paler at margin but not two-toned, smooth, cracking when dry; margin turned down or in. Lamellae attached, emarginate, somewhat broad, pale milk coffee, L = 40-70 plus lamellulae; edges white fimbriate, beaded. Stipe 15-30
<normalizedToken originalValue="×">x</normalizedToken>
4-10 mm, rather short, equal, sometimes slightly restricted in middle, clavate, white, firm. Context buff. Odor slightly raphanoid. Exsiccate: pileus brown, slightly caramel color; lamellae dark rusty brown; stipe short, cream color.
</paragraph>
<paragraph pageId="23" pageNumber="24">
Basidiospores yellowish brown, amygdaliform with a snout, more symmetrical in side view, apiculate, sometimes guttulate, weakly ornamented (O1, O2), no loosening perispore noted (P0), very slightly dextrinoid (D0, D1), 10-12
<normalizedToken originalValue="×">x</normalizedToken>
6-7
<normalizedToken originalValue="µm">µm</normalizedToken>
, on average 11.2
<normalizedToken originalValue="×">x</normalizedToken>
6.6
<normalizedToken originalValue="µm">µm</normalizedToken>
, a few large spores present -18
<normalizedToken originalValue="×">x</normalizedToken>
-8
<normalizedToken originalValue="µm">µm</normalizedToken>
, Q = 1.69. Basidia 32-40
<normalizedToken originalValue="×">x</normalizedToken>
8.5-10.5, mainly four-spored, some possibly two-spored. Cheilocystidia mostly clavate-stiptate, 55-75
<normalizedToken originalValue="µm">µm</normalizedToken>
long, apex width 6.5-10.5
<normalizedToken originalValue="µm">µm</normalizedToken>
, median width 4-5.5
<normalizedToken originalValue="µm">µm</normalizedToken>
, base width 3.5-4.5
<normalizedToken originalValue="µm">µm</normalizedToken>
. Pleurocystidia absent. Epicutis thickness 60-160
<normalizedToken originalValue="µm">µm</normalizedToken>
, with some encrusted hyphae.
</paragraph>
<caption pageId="23" pageNumber="24">
<paragraph pageId="23" pageNumber="24">
Figure 13.
<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma alpinum" order="Agaricales" pageId="23" pageNumber="24" phylum="Basidiomycota" rank="species" species="alpinum">Hebeloma alpinum</taxonomicName>
, CLC2855 and HJB11123 (Switzerland).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="23" pageNumber="24" type="rocky mountain ecology">
<paragraph pageId="23" pageNumber="24">Rocky Mountain ecology.</paragraph>
<paragraph pageId="23" pageNumber="24">
Information is based on one collection from Montana, with mixed dwarf and shrub
<taxonomicName class="Ascidiacea" family="Polycitoridae" genus="Salix" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Salix" order="Aplousobranchia" pageId="23" pageNumber="24" phylum="Chordata" rank="genus">Salix</taxonomicName>
species.
</paragraph>
</subSubSection>
<subSubSection pageId="23" pageNumber="24" type="materials_examined">
<paragraph pageId="23" pageNumber="24">Rocky Mountain specimens examined.</paragraph>
<paragraph pageId="23" pageNumber="24">
U.S.A. MONTANA: Park County, Lulu Pass, 3000 m in
<taxonomicName class="Magnoliopsida" family="Salicaceae" genus="Salix" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Salix arctica" order="Malpighiales" pageId="23" pageNumber="24" phylum="Tracheophyta" rank="species" species="arctica">Salix arctica</taxonomicName>
and
<taxonomicName lsidName="S. glauca" pageId="23" pageNumber="24" rank="species" species="glauca">S. glauca</taxonomicName>
, 11 Aug 2012, CLC2855 (MONT), C. Cripps.
</paragraph>
</subSubSection>
<subSubSection pageId="23" pageNumber="24" type="discussion">
<paragraph pageId="23" pageNumber="24">Discussion.</paragraph>
<paragraph pageId="23" pageNumber="24">
The only confirmed report we have for this species from the Rocky Mountains relies on a single collection of a few specimens found near Cooke City, Montana at an elevation of 3000 m with dwarf and shrub
<taxonomicName class="Ascidiacea" family="Polycitoridae" genus="Salix" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Salix" order="Aplousobranchia" pageId="23" pageNumber="24" phylum="Chordata" rank="genus">Salix</taxonomicName>
species. In the network Fig. 4A, this single RM representative of
<taxonomicName lsidName="H. alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">H. alpinum</taxonomicName>
appears rather distant from its European counterparts, which are clustered at one of the centers of the network, i.e. the biggest circle, of the
<taxonomicName lsidName="H. alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">H. alpinum</taxonomicName>
complex. An ITS tree including the
<taxonomicName lsidName="H. alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">H. alpinum</taxonomicName>
complex is given in
<bibRefCitation author="Eberhardt, U" journalOrPublisher="Persoonia" pageId="43" pageNumber="44" pagination="101 - 137" title="Decrypting the Hebelomacrustuliniforme complex: European species of HebelomasectionDenudata subsection Denudata (Agaricales)." url="https://doi.org/10.3767/003158515X687704" volume="35" year="2015 a">Eberhardt et al. (2015a)</bibRefCitation>
. Although this collection appears molecularly quite far removed from its conspecifics, 6-10 [1-2] bp, the total distance is largely due to a 5 bp indel repeating a sequence motif generally present in members of the
<taxonomicName lsidName="H. alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">H. alpinum</taxonomicName>
complex. Thus, the molecular results do not argue against this being
<taxonomicName lsidName="H. alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">H. alpinum</taxonomicName>
. This species is quite variable molecularly as well as morphologically (see the discussion of the
<taxonomicName genus="Velutipes" lsidName="Velutipes alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">alpinum</taxonomicName>
-complex in
<bibRefCitation pageId="23" pageNumber="24">Beker et al. 2016</bibRefCitation>
). The spores of this collection are on the lower end of the range for this taxon, as given in
<bibRefCitation pageId="23" pageNumber="24">Beker et al. 2016</bibRefCitation>
, but still comfortably within the range.
</paragraph>
<paragraph pageId="23" pageNumber="24">
<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma alpinum" order="Agaricales" pageId="23" pageNumber="24" phylum="Basidiomycota" rank="species" species="alpinum">Hebeloma alpinum</taxonomicName>
has been reported previously in North America from the Rocky Mountain alpine zone (
<bibRefCitation author="Cripps, CL" journalOrPublisher="Sommerfeltia" pageId="43" pageNumber="44" pagination="101 - 123" title="Checklist and ecology of the Agaricales, Russulales and Boletales in the alpine zone of the Rocky Mountains (Colorado, Montana, Wyoming) at 3000 - 4000 a. s. l." url="https://doi.org/10.2478/v10208-011-0005-5" volume="31" year="2008">Cripps and Horak 2008</bibRefCitation>
) and Alaska (
<bibRefCitation pageId="23" pageNumber="24">Miller 1998</bibRefCitation>
), however, most sightings were not molecularly confirmed. There are three records from the Canadian Arctic collected in 1971 and 1974 (
<bibRefCitation author="Ohenoja, E" journalOrPublisher="North American Fungi" pageId="44" pageNumber="45" pagination="85 - 96" title="Larger fungi of the Canadian Arctic." url="https://doi.org/10.2509/naf2010.005.0056" volume="5" year="2010">Ohenoja and Ohenoja 2010</bibRefCitation>
), which have been confirmed molecularly (
<bibRefCitation pageId="23" pageNumber="24">Beker et al. 2018</bibRefCitation>
). Ten collections at the Denver Botanic Garden, originally labeled
<taxonomicName lsidName="H. alpinum" pageId="23" pageNumber="24" rank="species" species="alpinum">H. alpinum</taxonomicName>
, are now molecularly confirmed as
<taxonomicName lsidName="H. hiemale" pageId="23" pageNumber="24" rank="species" species="hiemale">H. hiemale</taxonomicName>
(see comments for this species).
</paragraph>
<paragraph pageId="23" pageNumber="24">
Favre originally described this species from the Swiss Alps as
<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" infraspecific-rank="var." kingdom="Fungi" lsidName="Hebeloma crustuliniforme var. alpinum" order="Agaricales" pageId="23" pageNumber="24" phylum="Basidiomycota" rank="variety" species="crustuliniforme" variety="alpinum">Hebeloma crustuliniforme var. alpinum</taxonomicName>
Favre (
<bibRefCitation author="Favre, J" journalOrPublisher="Ergebnisse der Wissenschaftlichen Untersuchungen des Schweizerischen Nationalparks" pageId="43" pageNumber="44" pagination="1 - 212" title="Les champinons superieurs de la zone alpine du Parc National Suisse." volume="5" year="1955">Favre 1955</bibRefCitation>
) and
<bibRefCitation pageId="23" pageNumber="24">Bruchet (1970)</bibRefCitation>
elevated it to species level.
<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma alpinum" order="Agaricales" pageId="23" pageNumber="24" phylum="Basidiomycota" rank="species" species="alpinum">Hebeloma alpinum</taxonomicName>
appears confined to arctic-alpine habitats and has been reported from such regions of the European Alps, Carpathians, Pyrenees, Greenland, Iceland, Scandinavia, Svalbard, and Switzerland, primarily with
<taxonomicName class="Magnoliopsida" family="Salicaceae" genus="Salix" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Salix reticulata" order="Malpighiales" pageId="23" pageNumber="24" phylum="Tracheophyta" rank="species" species="reticulata">Salix reticulata</taxonomicName>
,
<taxonomicName lsidName="S. polaris" pageId="23" pageNumber="24" rank="species" species="polaris">S. polaris</taxonomicName>
,
<taxonomicName lsidName="S. retusa" pageId="23" pageNumber="24" rank="species" species="retusa">S. retusa</taxonomicName>
, and
<taxonomicName class="Magnoliopsida" family="Rosaceae" genus="Dryas" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Dryas octopetala" order="Rosales" pageId="23" pageNumber="24" phylum="Tracheophyta" rank="species" species="octopetala">Dryas octopetala</taxonomicName>
as well as
<taxonomicName class="Magnoliopsida" family="Polygonaceae" genus="Persicaria" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Persicaria" order="Caryophyllales" pageId="23" pageNumber="24" phylum="Tracheophyta" rank="genus">Persicaria</taxonomicName>
(
<bibRefCitation pageId="23" pageNumber="24">Beker et al. 2016</bibRefCitation>
). The species is in
<taxonomicName infraspecific-rank="sect." lsidName="H." pageId="23" pageNumber="24" rank="section" section="Denudata">H. sect. Denudata</taxonomicName>
, subsect.
<taxonomicName genus="Velutipes" lsidName="Velutipes" pageId="23" pageNumber="24" rank="subsection" subsection="Crustuliniformia">Crustuliniformia</taxonomicName>
because of the lack of a veil, the clavate-stipitate shape of the cheilocystidia and molecular data (
<bibRefCitation author="Eberhardt, U" journalOrPublisher="Persoonia" pageId="43" pageNumber="44" pagination="101 - 137" title="Decrypting the Hebelomacrustuliniforme complex: European species of HebelomasectionDenudata subsection Denudata (Agaricales)." url="https://doi.org/10.3767/003158515X687704" volume="35" year="2015 a">Eberhardt et al. 2015a</bibRefCitation>
). As a relatively robust alpine species, it should be compared to
<taxonomicName lsidName="H. hiemale" pageId="23" pageNumber="24" rank="species" species="hiemale">H. hiemale</taxonomicName>
and
<taxonomicName lsidName="H. velutipes" pageId="23" pageNumber="24" rank="species" species="velutipes">H. velutipes</taxonomicName>
; the latter has a robust floccose white stipe.
</paragraph>
</subSubSection>
</treatment>
</document>