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237 lines
18 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.19.11174" ID-GBIF-Dataset="597e66bb-9991-4125-a460-5c17b80f33c8" ID-GBIF-Taxon="127892650" ID-Pensoft-Pub="1314-4049-19-31" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1314-4049-19-31" ModsDocOrigin="MycoKeys 19" ModsDocTitle="Two new species of Strigula (lichenised Dothideomycetes, Ascomycota) from China, with a key to the Chinese foliicolous species" checkinTime="1485645449582" checkinUser="pensoft" docAuthor="Jiang, Shu-Hua, Wei, Xin-Li & Wei, Jiang-Chun" docDate="2017" docId="D6722D497F6B236CE2F657738B5F6835" docLanguage="en" docName="MycoKeys 19: 31-42" docOrigin="MycoKeys 19" docSource="http://dx.doi.org/10.3897/mycokeys.19.11174" docTitle="Strigula acuticonidiarum S. H. Jiang, X. L. Wei & J. C. Wei, sp. nov." docType="treatment" docVersion="3" lastPageId="4" lastPageNumber="34" masterDocId="8B2EAA5CC93A98029154774E10590724" masterDocTitle="Two new species of Strigula (lichenised Dothideomycetes, Ascomycota) from China, with a key to the Chinese foliicolous species" masterLastPageNumber="42" masterPageNumber="31" pageId="3" pageNumber="34" updateTime="1643487431222" 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>Two new species of Strigula (lichenised Dothideomycetes, Ascomycota) from China, with a key to the Chinese foliicolous species</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>Jiang, Shu-Hua</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>Wei, Xin-Li</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>Wei, Jiang-Chun</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>2017</mods:date>
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<mods:detail type="volume">
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<mods:number>19</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>31</mods:start>
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<mods:end>42</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.19.11174</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.19.11174</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-19-31</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="127892650" LSID="urn:lsid:plazi:treatment:D6722D497F6B236CE2F657738B5F6835" httpUri="http://treatment.plazi.org/id/D6722D497F6B236CE2F657738B5F6835" lastPageId="4" lastPageNumber="34" pageId="3" pageNumber="34">
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<subSubSection pageId="3" pageNumber="34" type="nomenclature">
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<paragraph pageId="3" pageNumber="34">
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<taxonomicName LSID="http://fungalinfo.im.ac.cn/fungalname/fungalexample.html?fn=570329" authority="S. H. Jiang, X. L. Wei & J. C. Wei" class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula acuticonidiarum" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="acuticonidiarum">Strigula acuticonidiarum S.H.Jiang, X.L.Wei & J.C.Wei</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="34">sp. nov.</taxonomicNameLabel>
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Figure 2
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<normalizedToken originalValue="a–d">a-d</normalizedToken>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="diagnosis">
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<paragraph pageId="3" pageNumber="34">Diagnosis.</paragraph>
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<paragraph pageId="3" pageNumber="34">
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Differs from
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula antillarum" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="antillarum">Strigula antillarum</taxonomicName>
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in the almost entirely immersed perithecia, and longer macroconidia with more acute ends.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="materials_examined">
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<paragraph pageId="3" pageNumber="34">Type.</paragraph>
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<paragraph pageId="3" pageNumber="34">
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CHINA. Guangxi: Nanning City,
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<normalizedToken originalValue="Long’an">Long'an</normalizedToken>
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County, Longhu mountain natural reserve.
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="22.961668">22°57'42"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="107.62778">107°37'40"E</geoCoordinate>
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, 150 m alt., on living leaves, 1 Dec 2015, S.H.Jiang GX201511085 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138045 - holotype).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="description">
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<paragraph pageId="3" pageNumber="34">Description.</paragraph>
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<paragraph pageId="3" pageNumber="34">
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Thallus subcuticular, continuous or dispersed into rounded to partly confluent patches, 0.5-4 mm across and 10-25
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<normalizedToken originalValue="μm">μm</normalizedToken>
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thick, margin entire to crenulate, distinct lobes absent, bright to dark green. Photobiont
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<taxonomicName class="Ulvophyceae" family="Trentepohliaceae" genus="Cephaleuros" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Cephaleuros" order="Trentepohliales" pageId="3" pageNumber="34" phylum="Chlorophyta" rank="genus">Cephaleuros</taxonomicName>
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, cells angular-rounded, 5-15
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<normalizedToken originalValue="×">x</normalizedToken>
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4-10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Perithecia immersed to erumpent, covered by thalline tissue, mostly up to the ostiole, hemispherical, 0.3-0.5 mm diam and 100-140
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<normalizedToken originalValue="μm">μm</normalizedToken>
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tall, dark green, but the uppermost part often black. Exciple prosoplectenchymatous, 10-25
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<normalizedToken originalValue="μm">μm</normalizedToken>
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thick, colourless to brown. Involucrellum carbonaceous, 22.5-55
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<normalizedToken originalValue="μm">μm</normalizedToken>
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thick, black. Interascal filaments unbranched, c. 1-2
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<normalizedToken originalValue="μm">μm</normalizedToken>
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thick. Asci obclavate, 50-65
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<normalizedToken originalValue="×">x</normalizedToken>
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8-12
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Ascospores 8 per ascus, biseriate, fusiform, 1-septate, distinctly constricted at the septum, 12.5-20
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<normalizedToken originalValue="×">x</normalizedToken>
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3.7-5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, 2.5-5.5 times as long as broad. Pycnidia producing macroconidia numerous, black, wart-shaped, 0.1-0.15 mm diam. Macroconidia 1-septate, often constricted at the septum, ends acute, usually with 1-2 oil droplets per cell when fresh, 15-22.5
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<normalizedToken originalValue="×">x</normalizedToken>
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3-4
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, 4-7.5 times as long as broad. Microconidia not seen.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="chemistry">
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<paragraph pageId="3" pageNumber="34">Chemistry.</paragraph>
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<paragraph pageId="3" pageNumber="34">No substances detected by TLC.</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="habitat">
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<paragraph pageId="3" pageNumber="34">Habitat and distribution.</paragraph>
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<paragraph pageId="3" pageNumber="34">On the surface of living leaves in humid, semi-exposed forests of south China.</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="etymology">
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<paragraph pageId="3" pageNumber="34">Etymology.</paragraph>
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<paragraph pageId="3" pageNumber="34">
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The epithet "
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<taxonomicName lsidName="acuticonidiarum" pageId="3" pageNumber="34" rank="species" species="acuticonidiarum">acuticonidiarum</taxonomicName>
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" is a compound of a Latin adjective
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<normalizedToken originalValue="“acutatus”">"acutatus"</normalizedToken>
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(a, um, and acuti- in Latin comp.) meaning sharply pointed, and
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<normalizedToken originalValue="“macroconidiarum”">"macroconidiarum"</normalizedToken>
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, a plural genitive of the Latin neuter noun,
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<normalizedToken originalValue="“macroconidium”">"macroconidium"</normalizedToken>
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. This recalls the acute ends of the macroconidia.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="materials_examined">
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<paragraph pageId="3" pageNumber="34">Other specimens examined.</paragraph>
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<paragraph pageId="3" pageNumber="34">
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CHINA. Guangxi: Nanning City,
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<normalizedToken originalValue="Long’an">Long'an</normalizedToken>
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County, Longhu mountain natural reserve.
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="22.961668">22°57'42"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="107.62778">107°37'40"E</geoCoordinate>
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, 150 m alt., on living leaves, 1 Dec 2015, S.H.Jiang GX201511068 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138049), GX201511069 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138048), GX201511070 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138046), GX201511080 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138053), GX201511084 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138050), GX201511089 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138051), GX201511094 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138052). Yunnan: Xishuangbanna, Mengla County, tropical botanical garden of Chinese Academy of Sciences, East area.
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="21.9275">21°55'39"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="101.26444">101°15'52"E</geoCoordinate>
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, 560 m alt., on living leaves, 18 Nov 2015, X.L.Wei & S.H.Jiang XTBG2015038 (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138047).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="35" pageId="3" pageNumber="34" type="remarks">
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<paragraph pageId="3" pageNumber="34">Remarks.</paragraph>
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<paragraph pageId="3" pageNumber="34">
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula antillarum" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="antillarum">Strigula antillarum</taxonomicName>
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can be distinguished from the new species by the perithecia being immersed only at base, aggregate and confluent pycnidia forming black spots or radiating lines, and bacillar, shorter, macroconidia (12-20
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<normalizedToken originalValue="×">x</normalizedToken>
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3-4
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) with rounded ends (
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<bibRefCitation author="Lu ̈ cking, R" journalOrPublisher="New York Botanical Garden Press, New York" pageId="9" pageNumber="40" title="Foliicolous Lichenized Fungi (Flora Neotropica Vol. 103)." year="2008">Lücking 2008</bibRefCitation>
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). The new species is externally most similar to
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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(Figure 2
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<normalizedToken originalValue="e–i">e-i</normalizedToken>
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), in which perithecia are covered by the bright green thallus (
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<bibRefCitation author="Santesson, R" journalOrPublisher="Symbolae Botanicae Upsalienses" pageId="9" pageNumber="40" pagination="1 - 590" title="Foliicolous lichens I. A revision of the taxonomy of the obligately foliicolous, lichenized fungi." volume="12" year="1952">Santesson 1952</bibRefCitation>
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,
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<bibRefCitation author="Lu ̈ cking, R" journalOrPublisher="New York Botanical Garden Press, New York" pageId="9" pageNumber="40" title="Foliicolous Lichenized Fungi (Flora Neotropica Vol. 103)." year="2008">Lücking 2008</bibRefCitation>
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). However,
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula acuticonidiarum" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="acuticonidiarum">Strigula acuticonidiarum</taxonomicName>
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is characterized by a thinner thallus with entire to crenulate margins (thallus 20-80
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<normalizedToken originalValue="μm">μm</normalizedToken>
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thick in
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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), the absence of distinct lobes, and in having small and round thalli instead. Anatomically, it differs in the shorter asci and the macroconidia having more acute ends. In molecular analyses, the ITS rDNA sequences confirmed it as different from
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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(Figure 1). The two species are distinct both morphologically and phylogenetically.
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</paragraph>
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<caption pageId="3" pageNumber="34">
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<paragraph pageId="3" pageNumber="34">
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Figure 2. The new species
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula acuticonidiarum" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="acuticonidiarum">Strigula acuticonidiarum</taxonomicName>
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(holotype,
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138045). a Thallus with perithecia and pycnidia b Asci, with eight biseriate ascospores c Ascospores, with constriction at septum d Macroconidia.
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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e Thallus with perithecia (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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06211) f Thallus with pycnidia (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138067) g Ascus, with eight biseriate ascospores (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138066) h Ascospores, with 1-septate (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138066) i Macroconidia (
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<normalizedToken originalValue="HMAS–L">HMAS-L</normalizedToken>
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0138066). Scale bars: a, e, f = 300
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; b, d, h = 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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.
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</paragraph>
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</caption>
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<paragraph lastPageId="4" lastPageNumber="35" pageId="3" pageNumber="34">
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="3" pageNumber="34" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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is generally considered to be a very common but variable species, traditionally recognized morphologically, for example by the thallus having entire to crenulate or lobulate margins, and sometimes the whole thallus being lobate-lacin
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<pageBreakToken pageId="4" pageNumber="35" start="start">iate</pageBreakToken>
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. This variation series has been regarded as merely due to environmental or habitat modification. However, the most common state, represented by the holotype of
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="4" pageNumber="35" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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, is characterised by distinct, but short and rounded marginal lobes (
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<bibRefCitation author="Santesson, R" journalOrPublisher="Symbolae Botanicae Upsalienses" pageId="9" pageNumber="40" pagination="1 - 590" title="Foliicolous lichens I. A revision of the taxonomy of the obligately foliicolous, lichenized fungi." volume="12" year="1952">Santesson 1952</bibRefCitation>
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). The broad concept of
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="4" pageNumber="35" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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evidently represents a species complex, rather than a single species. Minor morphological traits, including thallus form and differences in ascus size and the shape of macroconidia, are diagnostic for segregating
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula acuticonidiarum" order="Strigulales" pageId="4" pageNumber="35" phylum="Ascomycota" rank="species" species="acuticonidiarum">Strigula acuticonidiarum</taxonomicName>
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from
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<taxonomicName class="Dothideomycetes" family="Strigulaceae" genus="Strigula" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Strigula smaragdula" order="Strigulales" pageId="4" pageNumber="35" phylum="Ascomycota" rank="species" species="smaragdula">Strigula smaragdula</taxonomicName>
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s. str., a distinction supported by molecular data (Figure 1).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |