216 lines
14 KiB
XML
216 lines
14 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.50.32432" ID-GBIF-Dataset="059c89da-7ae5-4dbb-b876-bd1617110873" ID-PMC="PMC6477855" ID-Pensoft-Pub="1314-4049-50-1" ID-PubMed="31043855" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1314-4049-50-1" ModsDocOrigin="MycoKeys 50" ModsDocTitle="Solving the taxonomic identity of Pseudotomentellatristis s.l. (Thelephorales, Basidiomycota) – a multi-gene phylogeny and taxonomic review, integrating ecological and geographical data" checkinTime="1555333405629" checkinUser="pensoft" docAuthor="Svantesson, Sten, Larsson, Karl-Henrik, Koljalg, Urmas, W. May, Tom, Patrik Cangren,, Henrik Nilsson, R. & Larsson, Ellen" docDate="2019" docId="D14260EDCB557B701D2D0C100578F17F" docLanguage="en" docName="MycoKeys 50: 1-77" docOrigin="MycoKeys 50" docSource="http://dx.doi.org/10.3897/mycokeys.50.32432" docTitle="Pseudotomentella tristoides Svantesson & K. H. Larss., sp. nov." docType="treatment" docVersion="4" lastPageNumber="43" masterDocId="BF413468CD59FFA53A5DFFC1FF9F272E" masterDocTitle="Solving the taxonomic identity of Pseudotomentellatristis s. l. (Thelephorales, Basidiomycota) - a multi-gene phylogeny and taxonomic review, integrating ecological and geographical data" masterLastPageNumber="77" masterPageNumber="1" pageNumber="43" updateTime="1668136202651" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Solving the taxonomic identity of Pseudotomentellatristis s. l. (Thelephorales, Basidiomycota) - a multi-gene phylogeny and taxonomic review, integrating ecological and geographical data</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Svantesson, Sten</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Larsson, Karl-Henrik</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Koljalg, Urmas</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>W. May, Tom</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Patrik Cangren,</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Henrik Nilsson, R.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Larsson, Ellen</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>MycoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2019</mods:date>
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<mods:detail type="volume">
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<mods:number>50</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>77</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/mycokeys.50.32432</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/mycokeys.50.32432</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-50-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="156201980" LSID="urn:lsid:plazi:treatment:D14260EDCB557B701D2D0C100578F17F" httpUri="http://treatment.plazi.org/id/D14260EDCB557B701D2D0C100578F17F" lastPageNumber="43" pageId="42" pageNumber="43">
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<subSubSection pageId="42" pageNumber="43" type="nomenclature">
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<paragraph pageId="42" pageNumber="43">
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<taxonomicName LSID="MB829030" authority="Svantesson & K. H. Larss." class="Agaricomycetes" family="Thelephoraceae" genus="Pseudotomentella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Pseudotomentella tristoides" order="Thelephorales" pageId="42" pageNumber="43" phylum="Basidiomycota" rank="species" species="tristoides">
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<pageBreakToken pageId="42" pageNumber="43" start="start">Pseudotomentella</pageBreakToken>
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tristoides Svantesson & K.H.Larss.
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</taxonomicName>
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<taxonomicNameLabel pageId="42" pageNumber="43">sp. nov.</taxonomicNameLabel>
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Fig. 17
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</paragraph>
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</subSubSection>
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<subSubSection pageId="42" pageNumber="43" type="materials_examined">
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<paragraph pageId="42" pageNumber="43">Type.</paragraph>
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<paragraph pageId="42" pageNumber="43">
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NORWAY.
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<normalizedToken originalValue="Nord-Tröndelag">Nord-Troendelag</normalizedToken>
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:
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<normalizedToken originalValue="Snåsa">Snasa</normalizedToken>
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,
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<normalizedToken originalValue="Bergsåsen">Bergsasen</normalizedToken>
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, boreal, deciduous forest on soil with intermediate pH, 28 August 2012, K.-H. Larsson (holotype: O F110306!, GenBank Acc. No. ITS: MK290692).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="42" pageNumber="43" type="unite sh">
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<paragraph pageId="42" pageNumber="43">UNITE SH.</paragraph>
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<paragraph pageId="42" pageNumber="43">SH030566.07FU</paragraph>
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</subSubSection>
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<subSubSection pageId="42" pageNumber="43" type="etymology">
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<paragraph pageId="42" pageNumber="43">Etymology.</paragraph>
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<paragraph pageId="42" pageNumber="43">
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The name refers to the overall similarity between this species and
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<taxonomicName lsidName="P. tristis" pageId="42" pageNumber="43" rank="species" species="tristis">P. tristis</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="42" pageNumber="43" type="description">
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<paragraph pageId="42" pageNumber="43">Description.</paragraph>
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<paragraph pageId="42" pageNumber="43">Basidiome annual, resupinate, membranaceous, effused to approximately ten centimetres in diameter. Mature parts continuous, with a rather firm, fibrous and compact, yet quite soft and elastic texture. Hymenium smooth; brown with a reddish hue. Immature parts discontinuous, byssoid with a cottony texture. Subhymenium and hymenium of immature parts initially pale greyish-blue, when more mature dark blue grey. Subiculum well-developed, loose, fibrous, brown with an orange hue; forms the outer edge of the basidiome, extending noticeably beyond the hymenium. All characters recorded in dried state.</paragraph>
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<caption pageId="42" pageNumber="43">
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<paragraph pageId="42" pageNumber="43">
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Figure 17. Micromorphological features of
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<taxonomicName lsidName="P. tristoides" pageId="42" pageNumber="43" rank="species" species="tristoides">P. tristoides</taxonomicName>
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in KOH. Holotype: A, B, C basidiospores in frontal face D, E in lateral face E subicular hyphae.
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</paragraph>
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</caption>
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<paragraph pageId="42" pageNumber="43">Hyphal cords lacking, but loose bundles of subicular hyphae sometimes present.</paragraph>
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<paragraph pageId="42" pageNumber="43">Hyphal system monomitic, clamp connections absent from all hyphae.</paragraph>
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<paragraph pageId="42" pageNumber="43">
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Subicular hyphae noticeably long and straight, thick-walled; forming a loose tissue. Individual hyphae (4.7-) 4.9-7.1 (-7.6)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, with a mean width of 6.0
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; orange brown to dark brown in KOH, orange brown to brown in water.
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</paragraph>
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<paragraph pageId="42" pageNumber="43">
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Subhymenial hyphae often somewhat sinuous, thin to thick-walled; forming a rather dense tissue. Individual hyphae (3.1-) 3.2-5.3 (-5.4)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, with a mean width of 4.6
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; pale yellowish-brown in KOH, pale green to blue green in the presence of air; pale green to pale orange green in water, with strongly granular contents.
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</paragraph>
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<paragraph pageId="42" pageNumber="43">Encrustation granular, amyloid, concolourous with the hyphae in both KOH and water; scattered in occurrence on the upper parts of subhymenial hyphae and on the lower parts of basidia.</paragraph>
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<paragraph pageId="42" pageNumber="43">
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Basidia with four slightly curved sterigmata, occasionally two-sterigmate; clavate to narrowly clavate, sometimes clavopedunculate, thin-walled, with one-three slight constrictions. Dimensions: (49-) 54-72 (-75)
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<normalizedToken originalValue="×">x</normalizedToken>
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(7.3-) 7.9-10.0 (-10.5)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; mean dimensions: 63
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<normalizedToken originalValue="×">x</normalizedToken>
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9.1
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Sterigmata (7.6-) 7.8-9.9 (-10.5)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long, with a mean length of 8.6
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Colours and reactions the same as for the subhymenial hyphae.
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</paragraph>
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<paragraph pageId="42" pageNumber="43">Cystidial organs lacking.</paragraph>
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<paragraph pageId="42" pageNumber="43">
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Basidiospores in frontal face generally with a subcircular basic shape and an angular to nodulose or sometimes cross-shaped outline, covered in bi- or trifurcate, sometimes singularly attached, echinuli. A majority of the spores with three-five indistinct corners to distinct, square lobes; subellipsoid, ovoid and subcircular spores with a rather evenly rounded outline occasionally occurring, as well as subcircular, six-lobed spores; abnormally large spores originating from two-sterigmate basidia infrequently seen. Frontal dimensions: 7.7-8.6 (-8.8)
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<normalizedToken originalValue="×">x</normalizedToken>
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(7.4-) 7.7-9.3 (-9.5)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; mean dimensions: 8.2
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<normalizedToken originalValue="×">x</normalizedToken>
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8.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; Q-value: 0.9-1.1; mean Q-value: 1.0. Echinuli (0.5-) 0.7-0.9 (-1.1)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long, with a mean length of 0.8
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Lateral face ellipsoid, usually with evenly rounded edges, sometimes with one-three lobes. Lateral dimensions: (7.9-) 8.0-8.6
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<normalizedToken originalValue="×">x</normalizedToken>
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6.0-6.5 (-6.7)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; mean dimensions: 8.2
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<normalizedToken originalValue="×">x</normalizedToken>
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6.3
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; Q-value: 1.2-1.4; mean Q-value: 1.3. Colour in KOH brown to yellow brown, in the presence of air often with a green to blue green reaction; in water pale greenish to pale greenish-orange; occasionally amyloid.
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</paragraph>
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<paragraph pageId="42" pageNumber="43">Chlamydospores lacking.</paragraph>
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</subSubSection>
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<subSubSection pageId="42" pageNumber="43" type="habitat">
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<paragraph pageId="42" pageNumber="43">Habitat.</paragraph>
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<paragraph pageId="42" pageNumber="43">
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The only specimen recorded to date of
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<taxonomicName lsidName="P. tristoides" pageId="42" pageNumber="43" rank="species" species="tristoides">P. tristoides</taxonomicName>
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is the type collection, which was obtained in an old, mixed forest on soil with intermediate pH. UNITE sequence metadata show that the species forms ectomycorrhiza with at least
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<taxonomicName class="Magnoliopsida" family="Salicaceae" genus="Populus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Populus alba" order="Malpighiales" pageId="42" pageNumber="43" phylum="Tracheophyta" rank="species" species="alba">Populus alba</taxonomicName>
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and
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<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Cephalanthera" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Cephalanthera damasonium" order="Asparagales" pageId="42" pageNumber="43" phylum="Tracheophyta" rank="species" species="damasonium">Cephalanthera damasonium</taxonomicName>
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(
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<bibRefCitation author="Koljalg, U" journalOrPublisher="New Phytologist" pageId="61" pageNumber="62" pagination="1063 - 1068" title="UNITE: a database providing web-based methods for the molecular identification of ectomycorrhizal fungi." url="https://doi.org/10.1111/j.1469-8137.2005.01376.x" volume="166" year="2005">
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<normalizedToken originalValue="Kõljalg">Koljalg</normalizedToken>
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et al. 2005
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</bibRefCitation>
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,
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<bibRefCitation author="Nilsson, RH" journalOrPublisher="MycoKeys" pageId="62" pageNumber="63" url="https://doi.org/10.1093/nar/gky1022" year="2019">Nilsson et al. 2019</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="42" pageNumber="43" type="distribution">
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<paragraph pageId="42" pageNumber="43">Distribution.</paragraph>
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<paragraph pageId="42" pageNumber="43">Basidiomata encountered in: Norway. Soil or root tip samples confirm presence also in: Estonia and the Czech Republic.</paragraph>
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</subSubSection>
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<subSubSection pageId="42" pageNumber="43" type="remarks">
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<paragraph pageId="42" pageNumber="43">Remarks.</paragraph>
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<paragraph pageId="42" pageNumber="43">
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Within the
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<taxonomicName lsidName="P. tristis" pageId="42" pageNumber="43" rank="species" species="tristis">P. tristis</taxonomicName>
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group, the basidiome of
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<taxonomicName lsidName="P. tristoides" pageId="42" pageNumber="43" rank="species" species="tristoides">P. tristoides</taxonomicName>
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can be recognised by its lack of hyphal cords and skeletal hyphae and its soft, yet rather firm and compact and
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<normalizedToken originalValue="±">+/-</normalizedToken>
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elastic texture after drying, bluish to greenish colour of immature parts, wide subicular hyphae, medium sized, angular-nodulose spores and relatively short echinuli and sterigmata.
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<taxonomicName class="Agaricomycetes" family="Thelephoraceae" genus="Pseudotomentella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Pseudotomentella tristis" order="Thelephorales" pageId="42" pageNumber="43" phylum="Basidiomycota" rank="species" species="tristis">Pseudotomentella tristis</taxonomicName>
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is similar but has longer echinuli and sterigmata,
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<taxonomicName lsidName="P. sciastra" pageId="42" pageNumber="43" rank="species" species="sciastra">P. sciastra</taxonomicName>
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has smaller, star-shaped spores and
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<taxonomicName lsidName="H. rhacodium" pageId="42" pageNumber="43" rank="species" species="rhacodium">H. rhacodium</taxonomicName>
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(only known from the type) has hard, brittle basidiomata after drying.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |