158 lines
14 KiB
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158 lines
14 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.138.38674" ID-PMC="PMC6969027" ID-Pensoft-Pub="1314-2003-138-3" ID-Pensoft-UUID="70E33E044DB551A7A3994CC1BB33ABA6" ID-PubMed="31988601" ModsDocID="1314-2003-138-3" checkinTime="1578758036833" checkinUser="pensoft" docAuthor="Aung, Aye Thida, Huang, Jian, Do, Truong Van, Song, Ai, Liu, Jia, Zhou, Zhe-Kun & Su, Tao" docDate="2020" docId="8AF9194F9E0C55B4A5EA87D79B3ACA15" docLanguage="en" docName="PhytoKeys 138: 3-15" docOrigin="PhytoKeys 138" docSource="http://dx.doi.org/10.3897/phytokeys.138.38674" docTitle="Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou 2020, sp. nov." docType="treatment" docVersion="5" id="70E33E044DB551A7A3994CC1BB33ABA6" lastPageNumber="3" masterDocId="70E33E044DB551A7A3994CC1BB33ABA6" masterDocTitle="Three new fossil records of Equisetum (Equisetaceae) from the Neogene of south-western China and northern Vietnam" masterLastPageNumber="15" masterPageNumber="3" pageNumber="3" updateTime="1668139620805" 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>Three new fossil records of Equisetum (Equisetaceae) from the Neogene of south-western China and northern Vietnam</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>Aung, Aye Thida</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>Huang, Jian</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>Do, Truong Van</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>Song, Ai</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>Liu, Jia</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>Zhou, Zhe-Kun</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>Su, Tao</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>PhytoKeys</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>138</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>3</mods:start>
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<mods:end>15</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/phytokeys.138.38674</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/phytokeys.138.38674</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-138-3</mods:identifier>
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<mods:identifier type="Pensoft-UUID">70E33E044DB551A7A3994CC1BB33ABA6</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="161672004" LSID="urn:lsid:plazi:treatment:8AF9194F9E0C55B4A5EA87D79B3ACA15" httpUri="http://treatment.plazi.org/id/8AF9194F9E0C55B4A5EA87D79B3ACA15" lastPageNumber="3" pageId="0" pageNumber="3">
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<subSubSection pageId="0" pageNumber="3" type="nomenclature">
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<paragraph pageId="0" pageNumber="3">
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<taxonomicName LSID="8AF9194F-9E0C-55B4-A5EA-87D79B3ACA15" authority="A. T. Aung, T. Su, T. V. Do & Z. K. Zhou" authorityName="A. T. Aung, T. Su, T. V. Do & Z. K. Zhou" authorityYear="2020" class="Sphenopsida" family="Equisetaceae" genus="Equisetum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Equisetum yenbaiense" order="Equisetales" pageId="0" pageNumber="3" phylum="Tracheophyta" rank="species" species="yenbaiense" status="sp. nov.">Equisetum yenbaiense A.T.Aung, T.Su, T.V.Do & Z.K.Zhou</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="3">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="holotype">
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<paragraph pageId="0" pageNumber="3">Holotype.</paragraph>
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<paragraph pageId="0" pageNumber="3">
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XTBGVNMN4001 (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="paratypes">
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<paragraph pageId="0" pageNumber="3">Paratypes.</paragraph>
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<paragraph pageId="0" pageNumber="3">
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XTBGVNMN4002-4004 (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2C, E-F</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="locality">
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<paragraph pageId="0" pageNumber="3">Locality.</paragraph>
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<paragraph pageId="0" pageNumber="3">
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Hop Thanh Village, Tuy Loc Commune, Yen Bai Province, northern Vietnam (
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<geoCoordinate degrees="21.725" direction="north" orientation="latitude" precision="55" value="21.725">21.725N</geoCoordinate>
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,
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<geoCoordinate degrees="104.849" direction="east" orientation="longitude" precision="55" value="104.849">104.849E</geoCoordinate>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="age">
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<paragraph pageId="0" pageNumber="3">Age.</paragraph>
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<paragraph pageId="0" pageNumber="3">The late Miocene.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="repository">
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<paragraph pageId="0" pageNumber="3">Repository.</paragraph>
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<paragraph pageId="0" pageNumber="3">Paleoecology Collections, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences and Vietnam National Museum of Nature, Vietnam Academy of Science and Technology.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="etymology">
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<paragraph pageId="0" pageNumber="3">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="3">
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The species name '
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<emphasis italics="true" pageId="0" pageNumber="3">yenbaiense</emphasis>
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' means that fossils are from Yen Bai Province, northern Vietnam.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="diagnosis">
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<paragraph pageId="0" pageNumber="3">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="3">
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Rhizomes with internodes and nodes, node round; Four bunches of tubers arranged in a whorl on a node (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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); most tubers elongate in shape, with one to two tubers in each bunch (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2C-D</figureCitation>
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); longitudinal ridges on the surface of tuber; the tip of tuber mucronate (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2F</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="3" type="description">
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<paragraph pageId="0" pageNumber="3">Description.</paragraph>
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<paragraph pageId="0" pageNumber="3">
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Rhizomes have both internodes and nodes (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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). The internode is ~0.2-0.3 cm in width, the length could not be observed, three longitudinal ridges are on the surface of the internode (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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). The node is round and ~0.2 cm in diameter (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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). Four bunches of tubers attach to one node and arrange in a whorl (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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). Only one tuber is preserved on each bunch, but it is likely that there are more than one tuber on each bunch (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2E-F</figureCitation>
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). Most tubers are elongate (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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); few are elliptical (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2F</figureCitation>
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), being~ 0.8 to 3.0 cm long and 0.4 to 1.0 cm wide. Two to four ridges are on the surface of each tuber (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2D</figureCitation>
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). The tip of tuber is mucronate (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-B Equisetum cf. pratense Ehrhart C-F Equisetum yenbaiense A. T. Aung, T. Su, T. V. Do & Z. K. Zhou, sp. nov. Specimen numbers: A-B XTBGSZTF 0001 (counterparts) C XTBGVNMN 4002 D & nbsp; XTBGVNMN 4001 E XTBGVNMN 4003 F XTBGVNMN 4004. n = node; r = ridge. Scale bars: 1 cm." figureDoi="10.3897/phytokeys.138.38674.figure2" httpUri="https://binary.pensoft.net/fig/370028" pageId="0" pageNumber="3">2F</figureCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |