225 lines
14 KiB
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225 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="87D6C2FD0492F011D20D31B7D86540F6" docLanguage="en" docName="MycoKeys 50: 1-77" docOrigin="MycoKeys 50" docSource="http://dx.doi.org/10.3897/mycokeys.50.32432" docTitle="Pseudotomentella atrofusca M. J. Larsen, Bull. Torrey Bot. Club. 98: 39 1971" docType="treatment" docVersion="4" lastPageNumber="25" 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="22" 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: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="156201982" LSID="urn:lsid:plazi:treatment:87D6C2FD0492F011D20D31B7D86540F6" httpUri="http://treatment.plazi.org/id/87D6C2FD0492F011D20D31B7D86540F6" lastPageId="24" lastPageNumber="25" pageId="21" pageNumber="22">
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<subSubSection pageId="21" pageNumber="22" type="nomenclature">
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<paragraph pageId="21" pageNumber="22">
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<taxonomicName authority="M. J. Larsen, Bull. Torrey Bot. Club. 98: 39 (1971)" class="Agaricomycetes" family="Thelephoraceae" genus="Pseudotomentella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Pseudotomentella atrofusca" order="Thelephorales" pageId="21" pageNumber="22" phylum="Basidiomycota" rank="species" species="atrofusca">Pseudotomentella atrofusca M.J.Larsen, Bull. Torrey Bot. Club. 98: 39 (1971)</taxonomicName>
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Fig. 10
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</paragraph>
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</subSubSection>
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<subSubSection pageId="22" pageNumber="23" type="materials_examined">
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<paragraph pageId="22" pageNumber="23">
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<pageBreakToken pageId="22" pageNumber="23" start="start">Type</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="22" pageNumber="23">
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UNITED STATES. Arizona: Fort Valley, Coconino, on
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<taxonomicName class="Pinopsida" family="Pinaceae" genus="Pinus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pinus ponderosa" order="Pinales" pageId="22" pageNumber="23" phylum="Tracheophyta" rank="species" species="ponderosa">Pinus ponderosa</taxonomicName>
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Laws., 21 September 1967, R. L. Gilbertson 7553 (holotype: ARIZ!, GenBank Acc. No. ITS: MK290732; isotype: SSMF 685-4578).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="22" pageNumber="23" type="unite sh">
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<paragraph pageId="22" pageNumber="23">UNITE SH.</paragraph>
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<paragraph pageId="22" pageNumber="23">SH005338.07FU</paragraph>
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</subSubSection>
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<subSubSection lastPageId="23" lastPageNumber="24" pageId="22" pageNumber="23" type="description">
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<paragraph pageId="22" pageNumber="23">Description.</paragraph>
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<paragraph lastPageId="23" lastPageNumber="24" pageId="22" pageNumber="23">
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Basidiome annual, resupinate, membranaceous, effused. Mature parts continuous, with a cottony texture. Hymenium smooth, brown. Immature parts discon
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<pageBreakToken pageId="23" pageNumber="24" start="start">tinuous</pageBreakToken>
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, byssoid, with a cottony texture. Subhymenium and hymenium of immature parts initially whitish-grey to whitish-grey brown, when more mature blue grey to brown grey. Subiculum thin, loose, fibrous, pale brown; often forms the outer edge of the basidiome, extending noticeably beyond the hymenium. All characters recorded in dried state.
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</paragraph>
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<caption pageId="23" pageNumber="24">
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<paragraph pageId="23" pageNumber="24">
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Figure 10. Micromorphological features of
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<taxonomicName lsidName="P. atrofusca" pageId="23" pageNumber="24" rank="species" species="atrofusca">P. atrofusca</taxonomicName>
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in KOH. Holotype: A, B basidiospores in frontal face C, D in lateral face.
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</paragraph>
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</caption>
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<paragraph pageId="23" pageNumber="24">
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Hyphal cords connecting to the edge of the basidiome and thinning out underneath; whitish to pale brown. Individual cords dimitic; formed by a sheathing layer of skeletal hyphae and two layers of generative hyphae; the outer generative hyphae thinner and the inner ones wider, the latter often swollen interseptally. Skeletal hyphae 1.1-1.4 (-1.5)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, with a mean width of 1.3
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Outer generative hyphae (2.2) 2.3-2.9
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, with a mean width of 2.6
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Inner generative hyphae (3.8) 3.9-5.3 (5.5)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, with a mean width of 4.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. All hyphae pale yellowish-brown in both KOH and water.
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</paragraph>
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<paragraph pageId="23" pageNumber="24">
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Hyphal system dimitic, clamp connections and reaction in
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<normalizedToken originalValue="Melzer’s">Melzer's</normalizedToken>
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reagent absent from all hyphae.
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</paragraph>
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<paragraph pageId="23" pageNumber="24">
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Subicular hyphae of two kinds: (1) generative hyphae noticeably long and straight, thick-walled; forming a loose tissue, in which (2) skeletal hyphae occur sparsely (most common in areas to where hyphal cords attach). Generative hyphae (1.7-) 1.8-2.8
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, with a mean width of 2.3
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; pale yellowish-brown to yellowish-brown in both KOH and water. Skeletal hyphae with the same width and colour as in the hyphal cords.
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</paragraph>
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<paragraph pageId="23" pageNumber="24">
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Subhymenial hyphae often somewhat sinuous, thin to thick-walled; forming a rather dense tissue. Individual hyphae (1.8-) 2.1-3.0
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, with a mean width of 2.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; hyaline to pale green in KOH, blue green in the presence of air; hyaline to pale blue green in water, with strongly granular contents.
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</paragraph>
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<paragraph pageId="23" pageNumber="24">
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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: (33-) 34-56 (-59)
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<normalizedToken originalValue="×">x</normalizedToken>
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(5.8-) 6.2-7.8 (7.9)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; mean dimensions: 44
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<normalizedToken originalValue="×">x</normalizedToken>
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7.2
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Sterigmata 4.4-5.6 (-6.8)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long, with a mean length of 5.1
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Colours and reactions the same as for the subhymenial hyphae, but in addition often with granular contents in KOH.
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</paragraph>
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<paragraph pageId="23" pageNumber="24">Cystidial organs lacking.</paragraph>
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<paragraph pageId="23" pageNumber="24">
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Basidiospores in frontal face generally with a subcircular basic shape and an angular to nodulose or sometimes star or cross-shaped outline, covered in bi- or trifurcate, sometimes singularly attached, echinuli. Nearly all spores with five distinct, square lobes, but depending on the precise angle sometimes perceived as three; four-lobed spores occasionally occurring; abnormally large spores originating from two-sterigmate basidia infrequently seen. Frontal dimensions: (6.1-) 6.2-7.0 (-7.1)
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<normalizedToken originalValue="×">x</normalizedToken>
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(5.8-) 6.3-7.2 (-7.3)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; mean dimensions: 6.6
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<normalizedToken originalValue="×">x</normalizedToken>
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6.8
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; Q-value: 0.9-1.0; mean Q-value: 1.0. Echinuli 0.6-0.9 (-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 to ovoid, usually with evenly rounded edges, sometimes with one-three lobes. Lateral dimensions: 6.3-6.9 (-7.3)
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<normalizedToken originalValue="×">x</normalizedToken>
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(4.0-) 4.1-4.8 (-5.0)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; mean dimensions: 6.5
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<normalizedToken originalValue="×">x</normalizedToken>
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4.4
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; Q-value: (1.3-) 1.4-1.6; mean Q-value: 1.5. Colour in both KOH and water pale brownish-yellow to pale blue green; inamyloid.
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</paragraph>
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<paragraph pageId="23" pageNumber="24">Chlamydospores lacking.</paragraph>
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</subSubSection>
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<subSubSection pageId="24" pageNumber="25" type="habitat">
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<paragraph pageId="24" pageNumber="25">
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<pageBreakToken pageId="24" pageNumber="25" start="start">Habitat</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="24" pageNumber="25">
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The only specimen recorded to date of
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<taxonomicName lsidName="P. atrofusca" pageId="24" pageNumber="25" rank="species" species="atrofusca">P. atrofusca</taxonomicName>
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is the type collection, which was collected on wood of
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<taxonomicName class="Pinopsida" family="Pinaceae" genus="Pinus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pinus ponderosa" order="Pinales" pageId="24" pageNumber="25" phylum="Tracheophyta" rank="species" species="ponderosa">Pinus ponderosa</taxonomicName>
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. Available UNITE sequences originate from root tips of
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<taxonomicName class="Magnoliopsida" family="Ericaceae" genus="Rhododendron" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhododendron decorum" order="Ericales" pageId="24" pageNumber="25" phylum="Tracheophyta" rank="species" species="decorum">Rhododendron decorum</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="24" pageNumber="25" type="distribution">
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<paragraph pageId="24" pageNumber="25">Distribution.</paragraph>
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<paragraph pageId="24" pageNumber="25">Basidiome encountered in: United States. Soil or root tip samples confirm presence also in: China.</paragraph>
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</subSubSection>
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<subSubSection pageId="24" pageNumber="25" type="remarks">
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<paragraph pageId="24" pageNumber="25">Remarks.</paragraph>
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<paragraph pageId="24" pageNumber="25">
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Within the
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<taxonomicName lsidName="P. tristis" pageId="24" pageNumber="25" rank="species" species="tristis">P. tristis</taxonomicName>
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group, the basidiome of
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<taxonomicName lsidName="P. atrofusca" pageId="24" pageNumber="25" rank="species" species="atrofusca">P. atrofusca</taxonomicName>
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can be recognised by its hyphal cords and skeletal hyphae. These features make it unique within the group and the risk for confusion with any other described species should be small. Outside the
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<taxonomicName lsidName="P. tristis" pageId="24" pageNumber="25" rank="species" species="tristis">P. tristis</taxonomicName>
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group,
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<taxonomicName lsidName="P. rhizopunctata" pageId="24" pageNumber="25" rank="species" species="rhizopunctata">P. rhizopunctata</taxonomicName>
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is somewhat similar, but differs from
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<taxonomicName lsidName="P. atrofusca" pageId="24" pageNumber="25" rank="species" species="atrofusca">P. atrofusca</taxonomicName>
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by the presence of chlamydospores on its hyphal cords.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |