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<document ID-DOI="10.11646/phytotaxa.529.1.11" ID-GBIF-Dataset="fc49c8a7-fccf-4b16-99f1-3c1af7b5b424" ID-ISSN="1179-3163" ID-Zenodo-Dep="5814168" checkinTime="1641191854685" checkinUser="plazi" docAuthor="Nuernberg-Silva, Anelise &amp; Fiaschi, Pedro" docDate="2021" docId="557C03465E6FFF9DFF7FF9257CECFCD9" docLanguage="en" docName="phytotaxa.529.1.11.pdf" docOrigin="Phytotaxa 529 (1)" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.5:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="5" docTitle="Oxalis (sect. Ripariae) Lourteig 2000" docType="key" docVersion="4" lastPageNumber="133" masterDocId="A9457B3E5E68FF95FFF7FFBD7947FFF7" masterDocTitle="Taxonomic revision and morphological delimitation of Oxalis sect. Ripariae (Oxalidaceae)" masterLastPageNumber="159" masterPageNumber="125" pageNumber="132" updateTime="1673527946163" updateUser="felipe" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title>Taxonomic revision and morphological delimitation of Oxalis sect. Ripariae (Oxalidaceae)</mods:title>
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<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Nuernberg-Silva, Anelise</mods:namePart>
<mods:affiliation>Programa de Pós-Graduação em Biologia de Fungos, Algas e Plantas, Universidade Federal de Santa Catarina, 88040 - 900, Florianópolis, SC, Brazil</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Fiaschi, Pedro</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-5457-6369</mods:nameIdentifier>
<mods:affiliation>Departamento de Botânica, Universidade Federal de Santa Catarina, 88040 - 900, Florianópolis, SC, Brazil pedrofiaschi @ gmail. com; https: // orcid. org / 0000 - 0002 - 5457 - 6369</mods:affiliation>
<mods:nameIdentifier type="email">pedrofiaschi@gmail.com</mods:nameIdentifier>
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<mods:title>Phytotaxa</mods:title>
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<mods:date>2021</mods:date>
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<mods:number>2021-12-30</mods:number>
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<mods:number>529</mods:number>
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<mods:number>1</mods:number>
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<mods:identifier type="DOI">10.11646/phytotaxa.529.1.11</mods:identifier>
<mods:identifier type="GBIF-Dataset">fc49c8a7-fccf-4b16-99f1-3c1af7b5b424</mods:identifier>
<mods:identifier type="ISSN">1179-3163</mods:identifier>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.5815893" ID-GBIF-Taxon="191853763" ID-Zenodo-Dep="5815893" LSID="urn:lsid:plazi:treatment:557C03465E6FFF9DFF7FF9257CECFCD9" httpUri="http://treatment.plazi.org/id/557C03465E6FFF9DFF7FF9257CECFCD9" lastPageId="8" lastPageNumber="133" pageId="7" pageNumber="132">
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<paragraph blockId="7.[136,727,1687,1714]" box="[136,727,1687,1714]" pageId="7" pageNumber="132">
Identification key to species of
<taxonomicName authorityName="Lourteig" authorityYear="2000" box="[488,727,1687,1714]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="7" pageNumber="132" phylum="Tracheophyta" rank="section" section="Ripariae">
<emphasis bold="true" box="[488,563,1687,1714]" italics="true" pageId="7" pageNumber="132">Oxalis</emphasis>
sect.
<emphasis bold="true" box="[627,727,1688,1714]" italics="true" pageId="7" pageNumber="132">Ripariae</emphasis>
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection lastPageId="8" lastPageNumber="133" pageId="7" pageNumber="132" type="key">
<key lastPageId="8" lastPageNumber="133" pageId="7" pageNumber="132">
<keyStep pageId="7" pageNumber="132">
<paragraph blockId="7.[136,1452,1749,2088]" pageId="7" pageNumber="132">
<keyLead pageId="7" pageNumber="132">
1. Shrubs or erect herb with stem up to ca.
<quantity box="[599,658,1749,1770]" metricMagnitude="-1" metricUnit="m" metricValue="3.0" pageId="7" pageNumber="132" unit="cm" value="30.0">30 cm</quantity>
long; internodes regularly spaced, nodes not rooting; petioles 15(9.5) cm long .... ...........................................................................................................................................................................................................2.
</keyLead>
</paragraph>
<paragraph blockId="7.[136,1452,1749,2088]" pageId="7" pageNumber="132">
<keyLead pageId="7" pageNumber="132">
- Stoloniferous herbs; stem up to ca.
<quantity box="[558,630,1807,1828]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="7" pageNumber="132" unit="cm" value="100.0">100 cm</quantity>
long; internodes alternating between very short and long, nodes sometimes rooting; petioles (3)
<quantity box="[316,402,1835,1857]" metricMagnitude="-1" metricUnit="m" metricValue="1.75" metricValueMax="2.8" metricValueMin="0.7" pageId="7" pageNumber="132" unit="cm" value="17.5" valueMax="28.0" valueMin="7.0">728 cm</quantity>
long...................................................................................................................................................................6.
</keyLead>
</paragraph>
</keyStep>
<keyStep pageId="7" pageNumber="132">
<paragraph blockId="7.[136,1452,1749,2088]" pageId="7" pageNumber="132">
<keyLead pageId="7" pageNumber="132">
2. Erect herb; leaflet blades membranous, lacking glandular hairs; apex cleft; peduncles
<quantity box="[1062,1183,1864,1886]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" metricValueMax="12.5" metricValueMin="3.5" pageId="7" pageNumber="132" unit="cm" value="8.0" valueMax="12.5" valueMin="3.5">3.512.5 cm</quantity>
long, inflorescences 213- flowered..................................................................................................................................................................
<taxonomicName box="[1271,1452,1893,1914]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="7" pageNumber="132" phylum="Tracheophyta" rank="species" species="niederleinii">
<emphasis box="[1271,1452,1893,1914]" italics="true" pageId="7" pageNumber="132">Oxalis niederleinii</emphasis>
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</paragraph>
<paragraph blockId="7.[136,1452,1749,2088]" pageId="7" pageNumber="132">
<keyLead pageId="7" pageNumber="132">
- Decumbent or scandent-cespitose subshrub; leaflet blades chartaceous, with glandular hairs
<quantity box="[1077,1190,1922,1944]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" metricValueMax="1.5" metricValueMin="0.5" pageId="7" pageNumber="132" unit="mm" value="1.0" valueMax="1.5" valueMin="0.5">0.51.5 mm</quantity>
long; apex cleft, obcordate, retuse or rounded, sometimes mucronulate; peduncles 0.56(8) cm long, inflorescences 25-flowered.........................................3.
</keyLead>
</paragraph>
</keyStep>
<keyStep pageId="7" pageNumber="132">
<paragraph blockId="7.[136,1452,1749,2088]" box="[136,1452,1979,2001]" pageId="7" pageNumber="132">
<keyLead box="[136,1452,1979,2001]" pageId="7" pageNumber="132">
3. Hairs up to ca.
<quantity box="[357,412,1979,2001]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="7" pageNumber="132" unit="mm" value="2.0">2 mm</quantity>
long, thick, yellowish; leaflets apex retuse to obcordate .......................................................
<taxonomicName authorityName="De Candolle" authorityYear="1825" box="[1287,1452,1979,2001]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="7" pageNumber="132" phylum="Tracheophyta" rank="species" species="eriocarpa">
<emphasis box="[1287,1452,1979,2001]" italics="true" pageId="7" pageNumber="132">Oxalis eriocarpa</emphasis>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph blockId="7.[136,1452,1749,2088]" box="[136,1452,2008,2030]" pageId="7" pageNumber="132">
<keyLead box="[136,1452,2008,2030]" pageId="7" pageNumber="132">
- Hairs up to ca.
<quantity box="[357,412,2008,2030]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="7" pageNumber="132" unit="mm" value="1.0">1 mm</quantity>
long, thin, transparent; leaflets apex retuse to rounded, sometimes mucronulate or cleft..............................4.
</keyLead>
</paragraph>
</keyStep>
<keyStep lastPageId="8" lastPageNumber="133" pageId="7" pageNumber="132">
<paragraph blockId="7.[136,1452,1749,2088]" pageId="7" pageNumber="132">
<keyLead pageId="7" pageNumber="132">
4. Leaflet blades concolorous, widely depressed obtrullate to very widely obtrullate, the apex cleft, margin plane; glandular hairs ca.
<quantity box="[211,284,2066,2088]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="7" pageNumber="132" unit="mm" value="1.5">1.5 mm</quantity>
long, abundant; capsules 56(710) ×
<quantity box="[658,764,2066,2088]" metricMagnitude="-2" metricUnit="m" metricValue="1.35" metricValueMax="1.5" metricValueMin="1.2" pageId="7" pageNumber="132" unit="mm" value="13.5" valueMax="15.0" valueMin="12.0">1215 mm</quantity>
, locules 35-seminate .....................................................
<taxonomicName box="[1306,1451,2066,2087]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="7" pageNumber="132" phylum="Tracheophyta" rank="species" species="refracta">
<emphasis box="[1306,1451,2066,2087]" italics="true" pageId="7" pageNumber="132">Oxalis refracta</emphasis>
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</keyLead>
</paragraph>
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
- Leaflet blades discolorous, widely depressed obovate to obovate, the apex retuse to rounded, sometimes mucronulate, margin revolute; glandular hairs
<quantity box="[451,548,188,210]" metricMagnitude="-4" metricUnit="m" metricValue="7.5" metricValueMax="10.0" metricValueMin="5.0" pageId="8" pageNumber="133" unit="mm" value="0.75" valueMax="1.0" valueMin="0.5">0.51 mm</quantity>
long, sparse to occasional; capsules 2.64 ×
<quantity box="[981,1099,188,210]" metricMagnitude="-3" metricUnit="m" metricValue="5.2" metricValueMax="5.7" metricValueMin="4.7" pageId="8" pageNumber="133" unit="mm" value="5.2" valueMax="5.7" valueMin="4.7">4.75.7 mm</quantity>
, locules uniseminate......................5.
</keyLead>
</paragraph>
</keyStep>
<keyStep pageId="8" pageNumber="133">
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
5. Scandent-cespitose unbranched subshrub; stem up to ca.
<quantity box="[765,821,217,238]" metricMagnitude="0" metricUnit="m" metricValue="1.8" pageId="8" pageNumber="133" unit="m" value="1.8">1.8 m</quantity>
long, procumbent; stipules 1.53 ×
<quantity box="[1175,1252,217,238]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" pageId="8" pageNumber="133" unit="mm" value="1.2">1.2 mm</quantity>
; inflorescences 13- flowered, sepals 6.510 ×
<quantity box="[464,561,245,267]" metricMagnitude="-3" metricUnit="m" metricValue="2.75" metricValueMax="3.0" metricValueMin="2.5" pageId="8" pageNumber="133" unit="mm" value="2.75" valueMax="3.0" valueMin="2.5">2.53 mm</quantity>
.....................................................................................................................
<taxonomicName box="[1265,1451,245,267]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="paranaensis">
<emphasis box="[1265,1451,245,267]" italics="true" pageId="8" pageNumber="133">Oxalis paranaensis</emphasis>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
- Decumbent branched subshrub; stem up to ca.
<quantity box="[652,706,274,296]" metricMagnitude="-1" metricUnit="m" metricValue="6.0" pageId="8" pageNumber="133" unit="m" value="0.6">0.6 m</quantity>
long, decumbent; stipules ca. 1.1 ×
<quantity box="[1045,1101,274,296]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="8" pageNumber="133" unit="mm" value="2.0">2 mm</quantity>
; inflorescences 25-flowered, sepals 45.5 ×
<quantity box="[290,399,303,325]" metricMagnitude="-4" metricUnit="m" metricValue="8.75" metricValueMax="10.0" metricValueMin="7.5" pageId="8" pageNumber="133" unit="mm" value="0.875" valueMax="1.0" valueMin="0.75">0.751 mm</quantity>
..................................................................................................................................................
<taxonomicName box="[1279,1452,303,324]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="benjaminii">
<emphasis box="[1279,1452,303,324]" italics="true" pageId="8" pageNumber="133">Oxalis benjaminii</emphasis>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
<keyStep pageId="8" pageNumber="133">
<paragraph blockId="8.[136,1457,159,815]" box="[136,1452,332,354]" pageId="8" pageNumber="133">
<keyLead box="[136,1452,332,354]" pageId="8" pageNumber="133">6. Stem green, nodes slightly radicant; leaflet apex emarginate to obcordate, rarely cleft ...................................................................7.</keyLead>
</paragraph>
<paragraph blockId="8.[136,1457,159,815]" box="[136,1451,361,383]" pageId="8" pageNumber="133">
<keyLead box="[136,1451,361,383]" pageId="8" pageNumber="133">- Stem reddish, nodes radicant; leaflet apex acute, obtuse, rounded, truncate or retuse .....................................................................8.</keyLead>
</paragraph>
</keyStep>
<keyStep pageId="8" pageNumber="133">
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
7. Leaflet blades 0.83.6 × 13.1(4.1) cm, the apex emarginate to obcordate, rarely cleft; inflorescences longer than the leaves ........ .......................................................................................................................................................................................
<taxonomicName authorityName="Norlind" authorityYear="1926" box="[1314,1451,418,440]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="riparia">
<emphasis box="[1314,1451,418,440]" italics="true" pageId="8" pageNumber="133">Oxalis riparia</emphasis>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph blockId="8.[136,1457,159,815]" box="[136,1452,447,469]" pageId="8" pageNumber="133">
<keyLead box="[136,1452,447,469]" pageId="8" pageNumber="133">
- Leaflet blades 0.81.4 ×
<quantity box="[450,560,447,469]" metricMagnitude="-2" metricUnit="m" metricValue="1.05" metricValueMax="1.3" metricValueMin="0.8" pageId="8" pageNumber="133" unit="cm" value="1.05" valueMax="1.3" valueMin="0.8">0.81.3 cm</quantity>
, the apex emarginate; inflorescences shorter than the leaves ....................
<taxonomicName authorityName="Nuernberg-Silva &amp; Fiaschi" authorityYear="2021" box="[1263,1452,447,468]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="lourteigiana">
<emphasis box="[1263,1452,447,468]" italics="true" pageId="8" pageNumber="133">Oxalis lourteigiana</emphasis>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
<keyStep pageId="8" pageNumber="133">
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
8. Leaflet blades widely rhombic to rhombic, the apex acute, rarely obtuse or rounded; lateral leaflets asymmetric, blade wider part at or below the mid-portion ....................................................................................................................................
<taxonomicName authorityName="Zuccarini" authorityYear="1832" box="[1271,1452,505,526]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="sarmentosa">
<emphasis box="[1271,1452,505,526]" italics="true" pageId="8" pageNumber="133">Oxalis sarmentosa</emphasis>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">- Leaflet blades widely depressed obovate to obovate, the apex obtuse, rounded or truncate, sometimes retuse, rarely acute in a few leaflets; lateral leaflets symmetric, blade wider part above the mid-portion ....................................................................................9.</keyLead>
</paragraph>
</keyStep>
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<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
9. Stem glabrous or only with hairs ca.
<quantity box="[564,637,591,613]" metricMagnitude="-4" metricUnit="m" metricValue="1.0" pageId="8" pageNumber="133" unit="mm" value="0.1">0.1 mm</quantity>
long, occasional; leaf blades abaxial surface purplish, the apex rounded or truncate.. ....................................................................................................................................................................................
<taxonomicName box="[1299,1452,620,641]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="hepatica">
<emphasis box="[1299,1452,620,641]" italics="true" pageId="8" pageNumber="133">Oxalis hepatica</emphasis>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
- Stem with smaller hairs ca.
<quantity box="[459,529,649,670]" metricMagnitude="-4" metricUnit="m" metricValue="1.0" pageId="8" pageNumber="133" unit="mm" value="0.1">0.1 mm</quantity>
long,moderate to very abundant,longer hairs0.51(1.5) mm long, sparse to moderate,and glandular hairs ca.
<quantity box="[297,370,677,699]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="8" pageNumber="133" unit="mm" value="0.5">0.5 mm</quantity>
long, occasional; leaf blades abaxial surface light green or whitish, the apex acute to obtuse or rounded ........10.
</keyLead>
</paragraph>
</keyStep>
<keyStep pageId="8" pageNumber="133">
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
10. Leaflet blade abaxial surface with smaller hairs
<quantity box="[682,799,706,728]" metricMagnitude="-4" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="8" pageNumber="133" unit="mm" value="0.15" valueMax="0.2" valueMin="0.1">0.10.2 mm</quantity>
long, curved, ascending or patent, abundant, longer hairs
<quantity box="[1370,1451,706,728]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="8" pageNumber="133" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">12 mm</quantity>
long, appressed, moderate to abundant, the secondary veins visible ............................................................................
<taxonomicName box="[1315,1451,735,756]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="bifrons">
<emphasis box="[1315,1451,735,756]" italics="true" pageId="8" pageNumber="133">Oxalis bifrons</emphasis>
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</keyLead>
</paragraph>
<paragraph blockId="8.[136,1457,159,815]" pageId="8" pageNumber="133">
<keyLead pageId="8" pageNumber="133">
- Leaflet blade abaxial surface with hairs
<quantity box="[595,674,764,785]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="8" pageNumber="133" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">12 mm</quantity>
long, appressed, very abundant, entirely covering the blade, rarely abundant, the secondary veins hidden under the indumentum .......................................................................................................
<taxonomicName box="[1282,1451,793,814]" class="Magnoliopsida" family="Oxalidaceae" genus="Oxalis" kingdom="Plantae" order="Oxalidales" pageId="8" pageNumber="133" phylum="Tracheophyta" rank="species" species="pampeana">
<emphasis box="[1282,1451,793,814]" italics="true" pageId="8" pageNumber="133">Oxalis pampeana</emphasis>
</taxonomicName>
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</paragraph>
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