556 lines
49 KiB
XML
556 lines
49 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.63.49054" ID-GBIF-Dataset="2eec87e8-e8cc-4585-84bb-ac5af39810d1" ID-PMC="PMC7062851" ID-Pensoft-Pub="1314-4049-63-69" ID-Pensoft-UUID="BC2096E6D63D5F5DA23CDFDDD3D63FA9" ID-PubMed="32189978" ModsDocID="1314-4049-63-69" checkinTime="1583231436794" checkinUser="pensoft" docAuthor="Jaklitsch, Walter M. & Voglmayr, Hermann" docDate="2020" docId="90BC257D7D5B5002862CB8F41D37BC32" docLanguage="en" docName="MycoKeys 63: 69-117" docOrigin="MycoKeys 63" docSource="http://dx.doi.org/10.3897/mycokeys.63.49054" docTitle="Melanconis marginalis subsp. marginalis subsp. marginalis (Peck) Wehm., Pap. Michigan Acad. I. 6: 382 1926" docType="treatment" docVersion="4" id="BC2096E6D63D5F5DA23CDFDDD3D63FA9" lastPageNumber="69" masterDocId="BC2096E6D63D5F5DA23CDFDDD3D63FA9" masterDocTitle="The genus Melanconis (Diaporthales)" masterLastPageNumber="117" masterPageNumber="69" pageNumber="69" updateTime="1668136401704" 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>The genus Melanconis (Diaporthales)</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>Jaklitsch, Walter M.</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>Voglmayr, Hermann</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>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>63</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>69</mods:start>
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<mods:end>117</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.63.49054</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.63.49054</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-63-69</mods:identifier>
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<mods:identifier type="Pensoft-UUID">BC2096E6D63D5F5DA23CDFDDD3D63FA9</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="162381285" LSID="urn:lsid:plazi:treatment:90BC257D7D5B5002862CB8F41D37BC32" httpUri="http://treatment.plazi.org/id/90BC257D7D5B5002862CB8F41D37BC32" lastPageNumber="69" pageId="0" pageNumber="69">
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<subSubSection pageId="0" pageNumber="69" type="nomenclature">
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<paragraph pageId="0" pageNumber="69">
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<taxonomicName LSID="90BC257D-7D5B-5002-862C-B8F41D37BC32" authority="subsp. marginalis (Peck) Wehm., Pap. Michigan Acad. I. 6: 382 (1926)." authorityName="subsp. marginalis (Peck) Wehm., Pap. Michigan Acad. I. 6: 382" authorityYear="1926" class="Sordariomycetes" family="Melanconidaceae" genus="Melanconis" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Melanconis marginalis subsp. marginalis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="subSpecies" species="marginalis" subSpecies="marginalis">Melanconis marginalis subsp. marginalis (Peck) Wehm., Pap. Michigan Acad. I. 6: 382 (1926).</taxonomicName>
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Melanconis marginalis subsp. marginalis. Sexual morph a pseudostroma in face view b-d ectostromatic discs (note conical to bristle-like ostiolar necks in c discoid in d; e vertical section showing central column and perithecia f-i, p-u asci j-o, v-y ascospores t, u, y in aqueous Congo Red x in 3 % KOH a, f BPI 614844 b, g, h, t holotype NYSf 1859 c, k, j BPI 748233 d, e, n, o, q-s, v, w, y epitype WU 37850 i, u DAOM 227767 l, m DAOM 202917 p BPI 614977 x DAOM 86074. Scale bars: 500 µm (a-e), 10 µm (f-i, q-u), 7 µm (j-p, v-y)." figureDoi="10.3897/mycokeys.63.49054.figure8" httpUri="https://binary.pensoft.net/fig/384818" pageId="0" pageNumber="69">Figures 8</figureCitation>
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<figureCitation captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Melanconis marginalis subsp. marginalis. Asexual morph a early stage of covering disc b, c conidiomata and conidial deposits in face view d, e conidiomata in cross section (d with β-conidia, e with α-conidia) f conidioma with α-conidia in vertical section g-k conidiophores and conidiogenous cells (producing α-conidia in g, h β-conidia in i-k) l-w α-conidia x-e 1 β-conidia g-e 1 in 3 % KOH a, b, d-g, i-k, n-s, x-b 1 epitype WU 37850 = D 321 c, t-w, c 1 - e 1 DAOM 227767 h, l, m BPI 614844. Scale bars: 300 µm (a, e, f), 500 µm (b, d), 1 mm (c), 10 µm (g, h), 7 µm (i, t-v), 5 µm (j-l, n, s, w, y-e 1), 3 µm (m, o-r, x)." figureDoi="10.3897/mycokeys.63.49054.figure9" httpUri="https://binary.pensoft.net/fig/384819" pageId="0" pageNumber="69">, 9</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69" type="reference_group">
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<paragraph pageId="0" pageNumber="69">
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≡
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<taxonomicName authorityName="Peck" authorityYear="1887" class="Sordariomycetes" family="Melanconidaceae" genus="Diaporthe" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Diaporthe marginalis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="species" species="marginalis">Diaporthe marginalis</taxonomicName>
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Peck, Rep. (Annual) Trustees State Mus. Nat. Hist., New York 39: 52 (1887) [1886] (Basionym).
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</paragraph>
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<paragraph pageId="0" pageNumber="69">
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≡
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<taxonomicName class="Sordariomycetes" family="Melanconidaceae" genus="Melanconis" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Melanconis alni subsp. var. var. marginalis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="variety" species="alni" subSpecies="var." variety="marginalis">Melanconis alni var. marginalis</taxonomicName>
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(Peck) Wehm., Revision of
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<taxonomicName authorityName="Tul. & C. Tul., Select. fung. carpol. (Paris) 2: 115" authorityYear="1863" class="Sordariomycetes" family="Melanconidaceae" genus="Melanconis" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Melanconis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">Melanconis</taxonomicName>
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,
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<taxonomicName authorityName="Cesati & De Notaris" authorityYear="1863" class="Sordariomycetes" family="Melanconidaceae" genus="Pseudovalsa" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Pseudovalsa" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">Pseudovalsa</taxonomicName>
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,
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<taxonomicName class="Sordariomycetes" family="Melanconidaceae" genus="Prosthecium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Prosthecium" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">Prosthecium</taxonomicName>
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&
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<taxonomicName class="Sordariomycetes" family="Melanconidaceae" genus="Titania" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Titania" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">Titania</taxonomicName>
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: 27 (1941).
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</paragraph>
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<paragraph pageId="0" pageNumber="69">
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=
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<taxonomicName class="Sordariomycetes" family="Melanconidaceae" genus="Diaporthe" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Diaporthe nivosa" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="species" species="nivosa">Diaporthe nivosa</taxonomicName>
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Ellis & Everh., Proc. Acad. nat. Sci. Philad. 42: 222 (1890).
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</paragraph>
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<paragraph pageId="0" pageNumber="69">
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=
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<taxonomicName class="Sordariomycetes" family="Melanconidaceae" genus="Melanconium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Melanconium dimorphum" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="species" species="dimorphum">Melanconium dimorphum</taxonomicName>
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Peck, Ann. Rep. New York State Mus. Nat. Hist. 40: 62 (1887).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69" type="type material">
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<paragraph pageId="0" pageNumber="69">Type material.</paragraph>
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<paragraph pageId="0" pageNumber="69">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Holotype</emphasis>
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of
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<taxonomicName authorityName="Peck" authorityYear="1887" class="Sordariomycetes" family="Diaporthaceae" genus="Diaporthe" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Diaporthe marginalis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="species" species="marginalis">
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<emphasis italics="true" pageId="0" pageNumber="69">Diaporthe marginalis</emphasis>
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</taxonomicName>
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: USA, New York, Essex County, Elisabethtown, on
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<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. crispa" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="crispa">Alnus alnobetula subsp. crispa</taxonomicName>
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(given as
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<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus viridis" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="viridis">
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<emphasis italics="true" pageId="0" pageNumber="69">Alnus viridis</emphasis>
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</taxonomicName>
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), May 1885, C.H. Peck (NYSf 1859!; material separated into 2 envelopes NYSf 1859.1 and NYSf 1859.2).
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Epitype</emphasis>
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, here designated: Canada, New Brunswick, Charlotte Co., 1.5 km SW of Little Lepreau, on
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<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. crispa" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="crispa">Alnus alnobetula subsp. crispa</taxonomicName>
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attached to the tree, soc.
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<taxonomicName authorityName="Senanayake & K. D. Hyde" authorityYear="2017" baseAuthorityName="Wehm." class="Sordariomycetes" family="Sydowiellaceae" genus="Tortilispora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Tortilispora aurantiaca" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="species" species="aurantiaca">
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<emphasis italics="true" pageId="0" pageNumber="69">Tortilispora aurantiaca</emphasis>
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</taxonomicName>
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, 3 Sep 2019, D. Malloch (WU 37850; ex-epitype cultures CBS 146200 = D321 (from ascospores), D321a (from
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<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
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), D321b (from
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<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
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); MBT390382).
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</paragraph>
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<caption doi="10.3897/mycokeys.63.49054.figure8" httpUri="https://binary.pensoft.net/fig/384818" pageId="0" pageNumber="69" start="Figure 8" startId="F8">
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<paragraph pageId="0" pageNumber="69">
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<emphasis bold="true" pageId="0" pageNumber="69">Figure 8.</emphasis>
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<taxonomicName authority="subsp. marginalis" authorityName="subsp. marginalis (Peck) Wehm., Pap. Michigan Acad. I. 6: 382" authorityYear="1926" class="Sordariomycetes" family="Melanconidaceae" genus="Melanconis" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Melanconis marginalis subsp. marginalis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="subSpecies" species="marginalis" subSpecies="marginalis">Melanconis marginalis subsp. marginalis</taxonomicName>
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. Sexual morph
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<emphasis bold="true" pageId="0" pageNumber="69">a</emphasis>
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pseudostroma in face view
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<emphasis bold="true" pageId="0" pageNumber="69">b-d</emphasis>
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ectostromatic discs (note conical to bristle-like ostiolar necks in
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<emphasis bold="true" pageId="0" pageNumber="69">c</emphasis>
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discoid in
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<emphasis bold="true" pageId="0" pageNumber="69">d</emphasis>
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;
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<emphasis bold="true" pageId="0" pageNumber="69">e</emphasis>
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vertical section showing central column and perithecia
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<emphasis bold="true" pageId="0" pageNumber="69">f-i, p-u</emphasis>
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asci
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<emphasis bold="true" pageId="0" pageNumber="69">j-o, v-y</emphasis>
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ascospores
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<emphasis bold="true" pageId="0" pageNumber="69">t, u, y</emphasis>
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in aqueous Congo Red
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<emphasis bold="true" pageId="0" pageNumber="69">x</emphasis>
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in 3% KOH
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<emphasis bold="true" pageId="0" pageNumber="69">a, f</emphasis>
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BPI 614844
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<emphasis bold="true" pageId="0" pageNumber="69">b, g, h, t</emphasis>
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holotype NYSf 1859
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<emphasis bold="true" pageId="0" pageNumber="69">c, k, j</emphasis>
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BPI 748233
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<emphasis bold="true" pageId="0" pageNumber="69">d, e, n, o, q-s, v, w, y</emphasis>
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epitype WU 37850
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<emphasis bold="true" pageId="0" pageNumber="69">i, u</emphasis>
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DAOM 227767
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<emphasis bold="true" pageId="0" pageNumber="69">l, m</emphasis>
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DAOM 202917
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<emphasis bold="true" pageId="0" pageNumber="69">p</emphasis>
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BPI 614977
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<emphasis bold="true" pageId="0" pageNumber="69">x</emphasis>
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DAOM 86074. Scale bars: 500
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="69">a-e</emphasis>
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), 10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="69">f-i, q-u</emphasis>
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), 7
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="69">j-p, v-y</emphasis>
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).
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</paragraph>
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</caption>
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<caption doi="10.3897/mycokeys.63.49054.figure9" httpUri="https://binary.pensoft.net/fig/384819" pageId="0" pageNumber="69" start="Figure 9" startId="F9">
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<paragraph pageId="0" pageNumber="69">
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<emphasis bold="true" pageId="0" pageNumber="69">Figure 9.</emphasis>
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<taxonomicName authority="subsp. marginalis" authorityName="subsp. marginalis (Peck) Wehm., Pap. Michigan Acad. I. 6: 382" authorityYear="1926" class="Sordariomycetes" family="Melanconidaceae" genus="Melanconis" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Melanconis marginalis subsp. marginalis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="subSpecies" species="marginalis" subSpecies="marginalis">Melanconis marginalis subsp. marginalis</taxonomicName>
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. Asexual morph
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<emphasis bold="true" pageId="0" pageNumber="69">a</emphasis>
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early stage of covering disc
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<emphasis bold="true" pageId="0" pageNumber="69">b, c</emphasis>
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conidiomata and conidial deposits in face view
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<emphasis bold="true" pageId="0" pageNumber="69">d, e</emphasis>
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conidiomata in cross section (
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<emphasis bold="true" pageId="0" pageNumber="69">d</emphasis>
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with
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<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
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,
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<emphasis bold="true" pageId="0" pageNumber="69">e</emphasis>
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with
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<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
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)
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<emphasis bold="true" pageId="0" pageNumber="69">f</emphasis>
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conidioma with
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<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
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in vertical section
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<emphasis bold="true" pageId="0" pageNumber="69">g-k</emphasis>
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conidiophores and conidiogenous cells (producing
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<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
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in
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<emphasis bold="true" pageId="0" pageNumber="69">g, h</emphasis>
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<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
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in
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<emphasis bold="true" pageId="0" pageNumber="69">i-k</emphasis>
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)
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<emphasis bold="true" pageId="0" pageNumber="69">l-w</emphasis>
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<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
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<emphasis bold="true" pageId="0" pageNumber="69">x-e1</emphasis>
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<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
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<emphasis bold="true" pageId="0" pageNumber="69">g-e1</emphasis>
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in 3% KOH
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<emphasis bold="true" pageId="0" pageNumber="69">a, b, d-g, i-k, n-s, x-b1</emphasis>
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epitype WU 37850 = D321
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<emphasis bold="true" pageId="0" pageNumber="69">c, t-w, c1-e1</emphasis>
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DAOM 227767
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<emphasis bold="true" pageId="0" pageNumber="69">h, l, m</emphasis>
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BPI 614844. Scale bars: 300
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<normalizedToken originalValue="µm">µm</normalizedToken>
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||
(
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||
<emphasis bold="true" pageId="0" pageNumber="69">a, e, f</emphasis>
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||
), 500
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<normalizedToken originalValue="µm">µm</normalizedToken>
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||
(
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||
<emphasis bold="true" pageId="0" pageNumber="69">b, d</emphasis>
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||
), 1 mm (
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||
<emphasis bold="true" pageId="0" pageNumber="69">c</emphasis>
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||
), 10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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||
(
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||
<emphasis bold="true" pageId="0" pageNumber="69">g, h</emphasis>
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||
), 7
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<normalizedToken originalValue="µm">µm</normalizedToken>
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||
(
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||
<emphasis bold="true" pageId="0" pageNumber="69">i, t-v</emphasis>
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||
), 5
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<normalizedToken originalValue="µm">µm</normalizedToken>
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||
(
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||
<emphasis bold="true" pageId="0" pageNumber="69">j-l, n, s, w, y-e1</emphasis>
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||
), 3
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="69">m, o-r, x</emphasis>
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||
).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69" type="description">
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<paragraph pageId="0" pageNumber="69">Description.</paragraph>
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<paragraph pageId="0" pageNumber="69">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Sexual morph</emphasis>
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:
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<emphasis italics="true" pageId="0" pageNumber="69">Pseudostromata</emphasis>
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immersed in bark causing pustules, scattered or aggregated, sometimes fused in pairs, 1.2-3.2 mm diam., pulvinate, circular to elliptic in outline, often elevated beyond bark surface; consisting of an ectostromatic disc and perithecia embedded in an entostroma around a central column, sometimes also acervuli containing
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<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
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on the ostiolar level.
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<emphasis italics="true" pageId="0" pageNumber="69">Ectostromatic discs</emphasis>
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0.3-1.5(-2) mm diam. or long, bright white to yellowish or cream, flat, convex or concave, sometimes fissured or with dark stellate stripes around disc on the bark surface, sometimes concealed by ostioles, circular, elliptic or fusoid in outline, typically distinctly projecting up to 1 mm including projecting part of the pseudostroma; central column beneath disc white to yellowish, consisting of hyaline hyphae and colourless crystals.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Ostiolar necks</emphasis>
|
||
cylindrical, laterally attached on perithecia, centrally attached only on centrally arranged perithecia, convergent in the disc margin or crowded at the ends of fusoid discs, sometimes completely filling disc, 1-15(-22) per disc. Visible part of the ostiolar necks (55-)87-153(-230)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(n = 128) diam., shiny black or brown with black tip, flat discoid to ring-like, papillate to subglobose with pointed tip or conical, sometimes bristle-like and projecting up to 0.6 mm.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Entostroma</emphasis>
|
||
bark coloured, not or only slightly paler than the surrounding bark, consisting of bark cells and some light-coloured hyphae.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Perithecia</emphasis>
|
||
(420-)480-650(-750)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(n = 34) diam., arranged in valsoid configuration around and below central column, depressed subglobose, collapsing up- or laterally inwards upon drying. Peridium pseudoparenchymatous, consisting of a dark brown small-celled outer and a hyaline to brownish, large-celled inner layer.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Hamathecium</emphasis>
|
||
of broad multiguttulate paraphyses, collapsing, dissolving and usually absent amongst mature asci.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Asci</emphasis>
|
||
floating free at maturity, (46-)56-69(-82)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(10-)11-14.5(-18)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(n = 116), mostly oblong to fusoid, but also clavate or narrowly ellipsoid, with an apical ring distinct in water and staining in Congo Red but invisible or indistinct in 3% KOH, containing 8 ascospores in bi- or obliquely uniseriate arrangement.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Ascospores</emphasis>
|
||
(13.8-)15.5-18(-20.7)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(3.7-)4.5-5.7(-7.7)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, l/w (2.4-)2.9-3.7(-4.4) (n = 236), hyaline to yellowish, oblong to ellipsoid, bicellular with equal or slightly unequal cells, slightly to distinctly constricted at the more or less median septum, multiguttulate or with few large and several small guttules when fresh, with a roundish to triangular or broadly oblong to beak-like and truncate appendage (1.1-)1.8-3.5(-6.1)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(2.2-)2.5-3.5(-4.2)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, l/w (0.4-)0.6-1.2(-2.1) (n = 140) at each end; in 3% KOH, ascospores wider and more ellipsoid; appendages mostly invisible.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="69">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Asexual morph</emphasis>
|
||
acervular, intermingled with pseudostromata of the sexual morph or more frequently developing separately, usually inconspicuous but sometimes becoming conspicuous due to greyish-brown to dark brown conidial deposits to 2.7 mm diam., sometimes confluent from 2 conidiomata and then up to 7 mm long. First white to yellow tissue (central column) forming within the bark, becoming visible by pustulate bark and narrow whitish to yellowish or brownish slit-like discs emerging through bark cracks, usually first followed by the production of
|
||
<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
|
||
in olivaceous chambers, followed by fusion of the chambers and production of
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
on the same or similar conidiophores, turning the cavity brown and oozing out from ends of the discs or perithecia of the sexual morph formed beneath.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Conidiomata</emphasis>
|
||
ca. 0.9-3 mm long or diam., pulvinate, more or less circular in outline, scattered or aggregated in lines.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Covering discs</emphasis>
|
||
0.3-0.7 mm long or diam., narrowly fusoid or longish to circular, plane to convex, white-yellowish-brownish, becoming covered and obscured by conidial deposits; discs and pulvinate or conical columns beneath consisting of compact
|
||
<emphasis italics="true" pageId="0" pageNumber="69">textura intricata</emphasis>
|
||
of hyaline hyphae and numerous colourless crystals.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Conidiophores</emphasis>
|
||
emerging around the central column from a
|
||
<emphasis italics="true" pageId="0" pageNumber="69">textura intricata</emphasis>
|
||
, fasciculate, filiform, branched near the base or sometimes 1-2 fold asymmetrically at higher levels, hyaline, turning brown from their tips; terminal conidiogenous cells (10-)13.5-23(-31)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(1.7-)2-3(-3.5)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(n = 68), cylindrical and often widened in the middle or towards the base and at the funnel-shaped tips beyond its width, annellidic, producing
|
||
<normalizedToken originalValue="α-">α-</normalizedToken>
|
||
and/or
|
||
<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
|
||
.
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Conidia</emphasis>
|
||
dimorphic,
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
(9-)10.5-13.3(-16.8)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(3.8-)4.5-5.3(- 6)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, l/w (1.7-)2-2.8(-3.9) (n = 171), first hyaline, soon turning light to medium brown, unicellular, mostly fusoid, but also oblong, oval, citriform or ellipsoid, straight or slightly curved to sigmoid, upper end often subacute, lower end narrowly truncate, containing several guttules or eguttulate, smooth;
|
||
<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
|
||
(6-)8-10.5(-12.2)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(1.7-)2.2-2.8(- 3)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, l/w (2.4-)3-4.6(-6.4) (n = 46), hyaline to dilute brownish, unicellular, oblong to cylindrical, sometimes reniform, straight or curved, thick-walled in water, with few guttules to eguttulate, smooth.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="69">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Culture</emphasis>
|
||
: Colony on CMD at 22 °C circular with slightly uneven margin, hyaline to whitish, forming a broad inner white zone with tooth-like margin and narrow hyaline outer zones; on MEA at room temperature circular, first hyaline to white, margin becoming diffuse, narrow or coarse concentric zones formed, turning brown from the margins, aerial hyphae short, dense, surface sometimes becoming imbricate, sometimes growth limited and ceasing after a few weeks.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="69" type="distribution and ecology">
|
||
<paragraph pageId="0" pageNumber="69">Distribution and ecology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="69">
|
||
Widespread in North America and also occurring in Japan and eastern Russia on various subspecies of
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="alnobetula">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus alnobetula</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="A. incana" pageId="0" pageNumber="69" rank="species" species="incana">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">A. incana</emphasis>
|
||
</taxonomicName>
|
||
; recorded also from
|
||
<taxonomicName lsidName="A. rubra" pageId="0" pageNumber="69" rank="species" species="rubra">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">A. rubra</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation DOI="https://doi.org/10.1139/b91-272" author="Sieber, TN" journalOrPublisher="Canadian Journal of Botany" pageId="0" pageNumber="69" pagination="2170 - 2176" refId="B39" refString="Sieber, TN, Sieber-Canavesi, F, Petrini, O, Ekramoddoullah, AKM, Dorworth, CE, 1991. Characterization of Canadian and European Melanconium from some Alnus species by morphological, cultural and biochemical studies. Canadian Journal of Botany 69: 2170 - 2176, DOI: https://doi.org/10.1139/b91-272" title="Characterization of Canadian and European Melanconium from some Alnus species by morphological, cultural and biochemical studies." url="https://doi.org/10.1139/b91-272" volume="69" year="1991">Sieber et al. 1991</bibRefCitation>
|
||
; see also material cited below).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="69" type="materials_examined">
|
||
<paragraph pageId="0" pageNumber="69">Additional material examined.</paragraph>
|
||
<paragraph pageId="0" pageNumber="69">
|
||
Canada, British Columbia, Kelowna, June Springs road, June Springs trail, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus incana" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="incana">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus incana</emphasis>
|
||
</taxonomicName>
|
||
, 18 Jul 1999, J. Ginns 10834 (DAOM 227767; measurements separately given, see below under Notes); Nelson, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus incana subsp. tenuifolia" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="incana" subSpecies="tenuifolia">Alnus incana subsp. tenuifolia</taxonomicName>
|
||
, soc.
|
||
<taxonomicName authorityName="P.A.Saccardo" authorityYear="1877" class="Sordariomycetes" family="Gnomoniaceae" genus="Cryptosporella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cryptosporella" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Cryptosporella</emphasis>
|
||
</taxonomicName>
|
||
sp., 26 Jun 1930, G.G. Hedgcock (BPI 614844, F.P. 50704); Victoria, Lake Cowichan, Mesachie Lake,
|
||
<geoCoordinate degrees="48.7942" direction="north" orientation="latitude" precision="5" value="48.7942">48.7942N</geoCoordinate>
|
||
<geoCoordinate degrees="124.1573" direction="west" orientation="longitude" precision="5" value="-124.1573">124.1573W</geoCoordinate>
|
||
, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus rubra" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="rubra">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus rubra</emphasis>
|
||
</taxonomicName>
|
||
, 14 Sep 1988, C. Dorworth (DAVFP 24976, dried culture PFC-051 only); Victoria, Ucluelet, Kennedy Lake,
|
||
<geoCoordinate degrees="49.0416" direction="north" orientation="latitude" precision="5" value="49.0416">49.0416N</geoCoordinate>
|
||
<geoCoordinate degrees="125.5315" direction="west" orientation="longitude" precision="5" value="-125.5315">125.5315W</geoCoordinate>
|
||
, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus rubra" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="rubra">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus rubra</emphasis>
|
||
</taxonomicName>
|
||
, 16 May 1987, C. Dorworth (DAVFP 24972, dried culture PFC-025 only); Manitoba, W Hawk Lake, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus</emphasis>
|
||
</taxonomicName>
|
||
sp., 5 Jun 1932, G.R. Bisby 4593 (DAOM 202917); Nova Scotia, Kings Co., Glenmont, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. crispa" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="crispa">Alnus alnobetula subsp. crispa</taxonomicName>
|
||
(as
|
||
<taxonomicName authorityName="Fernald" authorityYear="1913" baseAuthorityName="Fernald" class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus crispa subsp. var. var. mollis" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="variety" species="crispa" subSpecies="var." variety="mollis">Alnus crispa var. mollis</taxonomicName>
|
||
), 25 Jul 1936, I.L. Conners (Ottawa 3798 (DAOM)); Kentville, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. crispa" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="crispa">Alnus alnobetula subsp. crispa</taxonomicName>
|
||
, 11 May 1953, D. Creelman (DAOM 54346); Ontario, District of Nipissing, Temagami Forest Reserve, Lake Temagami, Bear Island, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. crispa" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="crispa">Alnus alnobetula subsp. crispa</taxonomicName>
|
||
(as
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus viridis subsp. var. var. mollis" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="variety" species="viridis" subSpecies="var." variety="mollis">Alnus viridis var. mollis</taxonomicName>
|
||
), 19 Jun 1933, R.F. Cain 2686 (DAOM 86075); trail at Matagama Point, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. crispa" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="crispa">Alnus alnobetula subsp. crispa</taxonomicName>
|
||
(as
|
||
<taxonomicName authorityName="Fernald" authorityYear="1913" baseAuthorityName="Fernald" class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus crispa subsp. var. var. mollis" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="variety" species="crispa" subSpecies="var." variety="mollis">Alnus crispa var. mollis</taxonomicName>
|
||
), 23 Jun 1933, R.F. Cain 2687 (DAOM 86074); Sharp Rock Inlet, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. crispa" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="crispa">Alnus alnobetula subsp. crispa</taxonomicName>
|
||
(as
|
||
<taxonomicName authorityName="Fernald" authorityYear="1913" baseAuthorityName="Fernald" class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus crispa subsp. var. var. mollis" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="variety" species="crispa" subSpecies="var." variety="mollis">Alnus crispa var. mollis</taxonomicName>
|
||
), 29 Jun 1933, R.F. Cain (BPI 614977, F.P. 69748). Japan, Hokkaido, Shirikinai, on
|
||
<taxonomicName authorityName="Chery" authorityYear="2015" baseAuthorityName="Callier" class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. maximowiczii" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="maximowiczii">Alnus alnobetula subsp. maximowiczii</taxonomicName>
|
||
, 1 Sept 1967, T. Oguchi (TFM FPH3290; culture MAFF 410218 = M4-6, ME9). RUSSIA, Sakhalin Island, Lake Dvoynoe, on
|
||
<taxonomicName authorityName="Chery" authorityYear="2015" baseAuthorityName="Callier" class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. maximowiczii" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="maximowiczii">Alnus alnobetula subsp. maximowiczii</taxonomicName>
|
||
, 3 Aug 2000, A. Bogachova, comm. L. Vasilyeva (BPI 748233; culture CBS 109496 = A.R. 3529, ME2). USA, Alaska, Fairbanks, Large Animal Research Station, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="alnobetula">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus alnobetula</emphasis>
|
||
</taxonomicName>
|
||
, 5 Aug 2011, L. Mejia (BPI 884096; culture A.R. 4864, ME5); same area, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="alnobetula">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus alnobetula</emphasis>
|
||
</taxonomicName>
|
||
(given as
|
||
<taxonomicName authorityName="Sarg" authorityYear="1922" class="Magnoliopsida" family="Betulaceae" genus="Betula" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Betula neoalaskana" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="neoalaskana">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Betula neoalaskana</emphasis>
|
||
</taxonomicName>
|
||
), 5 Aug 2011, L. Mejia (BPI 884097; culture CBS 133346 = A.R. 4865, ME6); Juneau, on
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula subsp. sinuata" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="alnobetula" subSpecies="sinuata">Alnus alnobetula subsp. sinuata</taxonomicName>
|
||
, 6 Sep 1936, D.V. Baxter (BPI 615125).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="69" type="notes">
|
||
<paragraph pageId="0" pageNumber="69">Notes.</paragraph>
|
||
<paragraph pageId="0" pageNumber="69">
|
||
The asexual morph of
|
||
<taxonomicName authority="subsp. marginalis" authorityName="subsp. marginalis (Peck) Wehm., Pap. Michigan Acad. I. 6: 382" authorityYear="1926" class="Sordariomycetes" family="Melanconidaceae" genus="Melanconis" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Melanconis marginalis subsp. marginalis" order="Diaporthales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="subSpecies" species="marginalis" subSpecies="marginalis">Melanconis marginalis subsp. marginalis</taxonomicName>
|
||
is inconspicuous with usually only thin greyish patches of
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
. The two types of conidia may be present at the same time or only one is present; acervuli containing
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
are sometimes present in pseudostromata of the sexual morph. The specimen DAOM 227767 from
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus incana" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="incana">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus incana</emphasis>
|
||
</taxonomicName>
|
||
differs from all others by very large and conspicuous conidial deposits (Fig.
|
||
<figureCitation captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Melanconis marginalis subsp. marginalis. Asexual morph a early stage of covering disc b, c conidiomata and conidial deposits in face view d, e conidiomata in cross section (d with β-conidia, e with α-conidia) f conidioma with α-conidia in vertical section g-k conidiophores and conidiogenous cells (producing α-conidia in g, h β-conidia in i-k) l-w α-conidia x-e 1 β-conidia g-e 1 in 3 % KOH a, b, d-g, i-k, n-s, x-b 1 epitype WU 37850 = D 321 c, t-w, c 1 - e 1 DAOM 227767 h, l, m BPI 614844. Scale bars: 300 µm (a, e, f), 500 µm (b, d), 1 mm (c), 10 µm (g, h), 7 µm (i, t-v), 5 µm (j-l, n, s, w, y-e 1), 3 µm (m, o-r, x)." figureDoi="10.3897/mycokeys.63.49054.figure9" httpUri="https://binary.pensoft.net/fig/384819" pageId="0" pageNumber="69">9c</figureCitation>
|
||
), slightly larger
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
, (13-)14.5-16.5(-17.5)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(5-)5.8-7(-8)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, l/w (1.8-)2.1-2.8(-3.4) (n = 70) and longer and more slender
|
||
<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
|
||
, (7.5-)12.5-16(-17.3)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(1.7-)2.2-3(-3.5)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, l/w (4-)4.6-6.7(-9) (n = 35) and also by slightly larger asci, (68-)74-88(-95.5)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(10-)12-15.5(-18.2)
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(n = 26), which approach the European subspecies. Although
|
||
<bibRefCitation author="Jensen, JD" journalOrPublisher="Mycotaxon" pageId="0" pageNumber="69" pagination="275 - 281" refId="B21" refString="Jensen, JD, 1984. Melanconis marginalis from Northern Idaho. Mycotaxon 20: 275 - 281" title="Melanconis marginalis from Northern Idaho." volume="20" year="1984">Jensen (1984)</bibRefCitation>
|
||
gave a range of 9-17
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-7
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
for
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
and 10-18
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2-3
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
for
|
||
<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
|
||
of
|
||
<taxonomicName lsidName="M. marginalis" pageId="0" pageNumber="69" rank="species" species="marginalis">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">M. marginalis</emphasis>
|
||
</taxonomicName>
|
||
, it is unclear, whether all examined specimens, including DAOM 227767, phylogenetically belong to
|
||
<taxonomicName authority="subsp. marginalis" lsidName="M. marginalis subsp. marginalis" pageId="0" pageNumber="69" rank="subSpecies" species="marginalis" subSpecies="marginalis">M. marginalis subsp. marginalis</taxonomicName>
|
||
or a different subspecies or even species.
|
||
<bibRefCitation author="Jensen, JD" journalOrPublisher="Mycotaxon" pageId="0" pageNumber="69" pagination="275 - 281" refId="B21" refString="Jensen, JD, 1984. Melanconis marginalis from Northern Idaho. Mycotaxon 20: 275 - 281" title="Melanconis marginalis from Northern Idaho." volume="20" year="1984">Jensen (1984)</bibRefCitation>
|
||
reported exceptionally long ascospores (19-32
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
) for four of his collections from Idaho, which also differed in their colony characters; due to lack of DNA data, the taxonomic status of these collections is unclear. While all our North American and Eastern Asian accessions of
|
||
<taxonomicName authority="subsp. marginalis" lsidName="M. marginalis subsp. marginalis" pageId="0" pageNumber="69" rank="subSpecies" species="marginalis" subSpecies="marginalis">M. marginalis subsp. marginalis</taxonomicName>
|
||
sequences originated from various subspecies of
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="alnobetula">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus alnobetula</emphasis>
|
||
</taxonomicName>
|
||
, the accessions investigated by
|
||
<bibRefCitation author="Jensen, JD" journalOrPublisher="Mycotaxon" pageId="0" pageNumber="69" pagination="275 - 281" refId="B21" refString="Jensen, JD, 1984. Melanconis marginalis from Northern Idaho. Mycotaxon 20: 275 - 281" title="Melanconis marginalis from Northern Idaho." volume="20" year="1984">Jensen (1984)</bibRefCitation>
|
||
originated from
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus incana subsp. tenuifolia" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="subSpecies" species="incana" subSpecies="tenuifolia">Alnus incana subsp. tenuifolia</taxonomicName>
|
||
.
|
||
<bibRefCitation DOI="https://doi.org/10.1139/b91-272" author="Sieber, TN" journalOrPublisher="Canadian Journal of Botany" pageId="0" pageNumber="69" pagination="2170 - 2176" refId="B39" refString="Sieber, TN, Sieber-Canavesi, F, Petrini, O, Ekramoddoullah, AKM, Dorworth, CE, 1991. Characterization of Canadian and European Melanconium from some Alnus species by morphological, cultural and biochemical studies. Canadian Journal of Botany 69: 2170 - 2176, DOI: https://doi.org/10.1139/b91-272" title="Characterization of Canadian and European Melanconium from some Alnus species by morphological, cultural and biochemical studies." url="https://doi.org/10.1139/b91-272" volume="69" year="1991">Sieber et al. (1991)</bibRefCitation>
|
||
, who investigated
|
||
<taxonomicName lsidName="M. marginalis" pageId="0" pageNumber="69" rank="species" species="marginalis">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">M. marginalis</emphasis>
|
||
</taxonomicName>
|
||
from British Columbia, recorded mean conidial sizes of 11.2-11.8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4.4-4.7
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
for two isolates from
|
||
<taxonomicName lsidName="A. rubra" pageId="0" pageNumber="69" rank="species" species="rubra">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">A. rubra</emphasis>
|
||
</taxonomicName>
|
||
, while those from three isolates of
|
||
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Alnus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Alnus alnobetula" order="Fagales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="alnobetula">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">Alnus alnobetula</emphasis>
|
||
</taxonomicName>
|
||
were slightly larger (13.6-14
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
5.6-5.9
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
). These data demonstrate the need of additional detailed investigations of the
|
||
<taxonomicName lsidName="M. marginalis" pageId="0" pageNumber="69" rank="species" species="marginalis">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">M. marginalis</emphasis>
|
||
</taxonomicName>
|
||
complex in western North America.
|
||
<bibRefCitation author="Kobayashi, T" journalOrPublisher="Bulletin of the Government Forest Experimental Station Meguro" pageId="0" pageNumber="69" pagination="1 - 242" refId="B24" refString="Kobayashi, T, 1970. Taxonomic studies of Japanese Diaporthaceae with special reference to their life-histories. Bulletin of the Government Forest Experimental Station Meguro 226: 1 - 242" title="Taxonomic studies of Japanese Diaporthaceae with special reference to their life-histories." volume="226" year="1970">Kobayashi (1970)</bibRefCitation>
|
||
determined the following sizes for Japanese collections of
|
||
<taxonomicName lsidName="M. marginalis" pageId="0" pageNumber="69" rank="species" species="marginalis">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">M. marginalis</emphasis>
|
||
</taxonomicName>
|
||
: asci 70-93
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
10-15
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, ascospores 15-23
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-6.5
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, mostly 17-20
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4.5-5.5
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
,
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
11.5-15
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-6.5
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
,
|
||
<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
|
||
7.5-12.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.5-2.5
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
. He also mentioned that the Japanese collections usually lacked ascospore appendages, which, however, may be due to the use of a mounting medium instead of water in his microscope mounts. This is supported by the fact that he also reported a lack of appendages in his
|
||
<taxonomicName lsidName="M. pterocaryae" pageId="0" pageNumber="69" rank="species" species="pterocaryae">
|
||
<emphasis italics="true" pageId="0" pageNumber="69">M. pterocaryae</emphasis>
|
||
</taxonomicName>
|
||
, which was disproved by re-investigation of the type (
|
||
<bibRefCitation DOI="https://doi.org/10.3767/003158517X694768" author="Voglmayr, H" journalOrPublisher="Persoonia" pageId="0" pageNumber="69" pagination="136 - 155" refId="B53" refString="Voglmayr, H, Castlebury, LA, Jaklitsch, W, 2017. Juglanconis gen. nov. on Juglandaceae, and the new family Juglanconidaceae (Diaporthales). Persoonia 38: 136 - 155, DOI: https://doi.org/10.3767/003158517X694768" title="Juglanconis gen. nov. on Juglandaceae, and the new family Juglanconidaceae (Diaporthales)." url="https://doi.org/10.3767/003158517X694768" volume="38" year="2017">Voglmayr et al. 2017</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="69">
|
||
Sizes of asci depend on the age of the material. They shrink with time and in specimens, which are 20 or more years old, they are smaller and do not obtain the original size even in KOH; also, it is very difficult to release ascospores from asci. In fresher specimens, asci are easily separable and ascospores are readily released. Vital asci open readily in mounts. Nonetheless, fresh asci of the epitype of subsp.
|
||
<taxonomicName lsidName="subsp. marginalis" pageId="0" pageNumber="69" rank="subSpecies" species="pterocaryae" subSpecies="marginalis">marginalis</taxonomicName>
|
||
were distinctly smaller than fresh asci of subsp.
|
||
<taxonomicName lsidName="subsp. europaea" pageId="0" pageNumber="69" rank="subSpecies" species="pterocaryae" subSpecies="europaea">europaea</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="69">
|
||
Poor representation of the asexual morph in fungarium specimens may be due to the fact that the sexual morph is usually abundant, with numerous white ectostromatic discs; thus, the asexual morph may have been neglected during collecting or even discarded.
|
||
<normalizedToken originalValue="β-conidia">β-conidia</normalizedToken>
|
||
are often absent or scant and old amongst
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
in dark conidial deposits, hence they are either not formed or produced before
|
||
<normalizedToken originalValue="α-conidia">α-conidia</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |