283 lines
33 KiB
XML
283 lines
33 KiB
XML
<document id="A8F1F463E7587F0EBB1E315FBD40D916" ID-DOI="10.11646/phytotaxa.436.3.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="13874448" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1727817160391" checkinUser="felipe" docAuthor="Bruyns, Peter V., Klak, Cornelia & Hanáček, Pavel" docDate="2020" docId="03A6CB7E02218E37DC9DFE8BFC296DDF" docLanguage="en" docName="phytotaxa.436.3.1.pdf" docOrigin="Phytotaxa 436 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.436.3.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Euphorbia venteri L. C. Leach ex Archer & Carter 2001" docType="treatment" docVersion="2" lastPageNumber="220" masterDocId="FF9FB30602338E24DC15FFD9FFB86F27" masterDocTitle="A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa" masterLastPageNumber="221" masterPageNumber="201" pageNumber="219" updateTime="1727819793323" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:titleInfo id="2D55E70362AD183B4B4EEA5AF44B39D1">
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<mods:title id="CF5FEE39D0C68E64DDFED646E54460CB">A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa</mods:title>
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<mods:name id="1F14E8546151C5EFCFB76B4601DFD8AE" type="personal">
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<mods:namePart id="6340B9D229453B7540B2FF3C41F7D1DB">Bruyns, Peter V.</mods:namePart>
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<mods:affiliation id="1D848B6EC96847E6B29730D032266794">Bolus Herbarium, University of Cape Town, 7701 Rondebosch, South Africa</mods:affiliation>
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<mods:nameIdentifier id="6ABAB597313BFF79D5F44DAB3F5B1ECE" type="email">peter.bruyns@uct.ac.za</mods:nameIdentifier>
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<mods:roleTerm id="8AB99CFC69240FC05ADBB11D72CBC1A1">Author</mods:roleTerm>
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<mods:namePart id="3E287516D10B20AB3526DE3CF5919EEC">Klak, Cornelia</mods:namePart>
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<mods:affiliation id="4EDCC563107F4419407702C223F2E55A">Bolus Herbarium, University of Cape Town, 7701 Rondebosch, South Africa</mods:affiliation>
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<mods:namePart id="0D3538F9D7A3E7CD2EDE0DB372A67BDD">Hanáček, Pavel</mods:namePart>
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<mods:affiliation id="AF0261962CE9A6D54DA8408D28A476B5">Department of Plant Biology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czechia</mods:affiliation>
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<mods:title id="A8C96549F53AFAD40D52DAB61A07390A">Phytotaxa</mods:title>
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<mods:part id="51672CFA50C920B9FBEC0F65456EBB2B">
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<mods:date id="EDA1312CE65111E1ADD47F99E051C9DF">2020</mods:date>
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<mods:number id="7A4463E9538AAEF77D732E255F5087F2">2020-03-19</mods:number>
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<mods:number id="C30F5A1FC8943BF8AA708EE6FAF0BBF7">436</mods:number>
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<mods:number id="060E3D2574A89CBAA60DCB74393DF625">3</mods:number>
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<treatment id="03A6CB7E02218E37DC9DFE8BFC296DDF" ID-DOI="http://doi.org/10.5281/zenodo.13874500" ID-Zenodo-Dep="13874500" LSID="urn:lsid:plazi:treatment:03A6CB7E02218E37DC9DFE8BFC296DDF" httpUri="http://treatment.plazi.org/id/03A6CB7E02218E37DC9DFE8BFC296DDF" lastPageId="19" lastPageNumber="220" pageId="18" pageNumber="219">
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<subSubSection id="C31529E302218E36DC9DFE8BFC076E4B" box="[136,959,338,365]" pageId="18" pageNumber="219" type="nomenclature">
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<paragraph id="8BB07A6802218E36DC9DFE8BFC076E4B" blockId="18.[136,959,338,365]" box="[136,959,338,365]" pageId="18" pageNumber="219">
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<heading id="D0F8CD0402218E36DC9DFE8BFC076E4B" box="[136,959,338,365]" fontSize="11" level="2" pageId="18" pageNumber="219" reason="4">
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<emphasis id="B97BA67A02218E36DC9DFE8BFF116E4B" bold="true" box="[136,169,338,364]" pageId="18" pageNumber="219">11.</emphasis>
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<taxonomicName id="4C0F01EB02218E36DCA4FE8BFCEC6E4B" ID-CoL="3CR6J" authority="L. C. Leach ex Archer & Carter (2001: 86" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[177,852,338,365]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="venteri">
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<emphasis id="B97BA67A02218E36DCA4FE8BFE3B6E4B" bold="true" box="[177,387,338,365]" italics="true" pageId="18" pageNumber="219">Euphorbia venteri</emphasis>
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L.C.Leach ex
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<bibRefCitation id="EF9E079902218E36DE32FE8BFCEC6E4B" author="Archer, R. H. & Carter, S." box="[551,852,338,364]" pageId="18" pageNumber="219" pagination="86 - 90" refId="ref15853" refString="Archer, R. H. & Carter, S. (2001) Euphorbia venteri. The Flowering Plants of Africa 57: 86 - 90." type="journal article" year="2001">Archer & Carter (2001: 86</bibRefCitation>
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</taxonomicName>
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, t. 2176).
|
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C31529E302218E36DC9DFE47FD9C6EF0" pageId="18" pageNumber="219" type="materials_examined">
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<paragraph id="8BB07A6802218E36DC9DFE47FD9C6EF0" blockId="18.[136,1451,414,472]" pageId="18" pageNumber="219">
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Type:—
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<collectingCountry id="F3183AF802218E36DCC0FE47FEE76E94" box="[213,351,414,435]" name="Botswana" pageId="18" pageNumber="219">BOTSWANA</collectingCountry>
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.
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<quantity id="4CF7D78D02218E36DD7EFE47FE186E93" box="[363,416,414,436]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="18" pageNumber="219" unit="km" value="2.0">2 km</quantity>
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north of Tsamaya near Tsessebe, ±
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<quantity id="4CF7D78D02218E36DF1BFE47FCF66E93" box="[782,846,414,436]" metricMagnitude="4" metricUnit="m" metricValue="4.5" pageId="18" pageNumber="219" unit="km" value="45.0">45 km</quantity>
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north of
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<collectingRegion id="49CBB48A02218E36DFA4FE47FB926E93" box="[945,1066,414,436]" country="Botswana" name="Francistown" pageId="18" pageNumber="219">Francistown</collectingRegion>
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,
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<date id="FFB15CA802218E36D822FE47FB4E6E94" box="[1079,1270,414,436]" pageId="18" pageNumber="219" value="1991-12-12">12 December 1991</date>
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,
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<emphasis id="B97BA67A02218E36D911FE47FA136E94" box="[1284,1451,414,435]" italics="true" pageId="18" pageNumber="219">Venter et al. 174</emphasis>
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(
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<collectionCode id="ED1EE2AD02218E36DD0AFE1BFEEA6EF0" box="[287,338,450,471]" country="South Africa" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15547" lsid="urn:lsid:biocol.org:col:15547" name="South African National Biodiversity Institute (SANBI)" pageId="18" pageNumber="219" type="Herbarium">PRE</collectionCode>
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!,
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<typeStatus id="54B4C4CA02218E36DD4AFE1BFE166EFF" box="[351,430,450,472]" pageId="18" pageNumber="219" type="isotype">isotypes</typeStatus>
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<collectionCode id="ED1EE2AD02218E36DDA1FE1BFE736EF0" box="[436,459,450,471]" country="United Kingdom" lsid="urn:lsid:biocol.org:col:15867" name="Royal Botanic Gardens" pageId="18" pageNumber="219" type="Herbarium">K</collectionCode>
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!,
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<collectionCode id="ED1EE2AD02218E36DDCCFE1BFDA16EF0" box="[473,537,450,471]" country="South Africa" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15416" lsid="urn:lsid:biocol.org:col:15416" name="University of Limpopo" pageId="18" pageNumber="219" type="Herbarium">UNIN</collectionCode>
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).
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C31529E302218E37DC9DFDDFFC296DDF" lastPageId="19" lastPageNumber="220" pageId="18" pageNumber="219" type="discussion">
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<paragraph id="8BB07A6802218E36DC9DFDDFFB8D6DDF" blockId="18.[136,1452,518,760]" pageId="18" pageNumber="219">
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<emphasis id="B97BA67A02218E36DC9DFDDFFEBE6D07" bold="true" box="[136,262,518,544]" pageId="18" pageNumber="219">Discussion</emphasis>
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:—
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<taxonomicName id="4C0F01EB02218E36DD3FFDDFFE426D07" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[298,506,518,544]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="venteri">
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<emphasis id="B97BA67A02218E36DD3FFDDFFE426D07" box="[298,506,518,544]" italics="true" pageId="18" pageNumber="219">Euphorbia venteri</emphasis>
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||
</taxonomicName>
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||
was described from a single collection from north-eastern
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<collectingCountry id="F3183AF802218E36D8B8FDDEFAA76D06" box="[1197,1311,519,545]" name="Botswana" pageId="18" pageNumber="219">Botswana</collectingCountry>
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||
. It was said to differ from
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<taxonomicName id="4C0F01EB02218E36DD26FDF2FE146D63" box="[307,428,554,580]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="schinzii">
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<emphasis id="B97BA67A02218E36DD26FDF2FE146D63" box="[307,428,554,580]" italics="true" pageId="18" pageNumber="219">E. schinzii</emphasis>
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</taxonomicName>
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by the ‘thick and irregularly shaped root and more or less cylindrical branches’, while ‘
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<taxonomicName id="4C0F01EB02218E36DC84FD96FEB06D4F" box="[145,264,590,616]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="schinzii">
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<emphasis id="B97BA67A02218E36DC84FD96FEB06D4F" box="[145,264,590,616]" italics="true" pageId="18" pageNumber="219">E. schinzii</emphasis>
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</taxonomicName>
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usually has rhizomatous roots with short, upright branches’. It was also compared with
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<emphasis id="B97BA67A02218E36D8E8FD96FA136D4F" box="[1277,1451,590,616]" italics="true" pageId="18" pageNumber="219">
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<taxonomicName id="4C0F01EB02218E36D8E8FD96FA106D4F" authorityName="L. C. Leach ex Carter" authorityYear="2000" box="[1277,1448,590,616]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="limpopoana">E. limpopoana</taxonomicName>
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,
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</emphasis>
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which was characterized as ‘much more robust forming a large clump to
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<quantity id="4CF7D78D02218E36DFDCFDABFC4E6DAA" box="[969,1014,626,653]" metricMagnitude="0" metricUnit="m" metricValue="2.0" pageId="18" pageNumber="219" unit="m" value="2.0">2 m</quantity>
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in diam. (lacking rhizomes) with very long and thick branches bearing prominent spines’. The branches of
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<taxonomicName id="4C0F01EB02218E36DF8EFD4EFBFB6D97" authorityName="L. C. Leach ex Carter" authorityYear="2000" box="[923,1091,662,688]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="limpopoana">
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<emphasis id="B97BA67A02218E36DF8EFD4EFBFB6D97" box="[923,1091,662,688]" italics="true" pageId="18" pageNumber="219">E. limpopoana</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C0F01EB02218E36D868FD4EFB4C6D97" box="[1149,1268,662,688]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="schinzii">
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<emphasis id="B97BA67A02218E36D868FD4EFB4C6D97" box="[1149,1268,662,688]" italics="true" pageId="18" pageNumber="219">E. schinzii</emphasis>
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</taxonomicName>
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were said to be ‘conspicuously four-angled’. The ‘greenish to greenish brown glands’ of
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<taxonomicName id="4C0F01EB02218E36DFA5FD62FBA46DF3" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[944,1052,699,724]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="venteri">
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<emphasis id="B97BA67A02218E36DFA5FD62FBA46DF3" box="[944,1052,699,724]" italics="true" pageId="18" pageNumber="219">E. venteri</emphasis>
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</taxonomicName>
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also differed from the bright yellow glands of the cyathia in both
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<taxonomicName id="4C0F01EB02218E36DDD8FD06FDCA6DDF" authorityName="L. C. Leach ex Carter" authorityYear="2000" box="[461,626,734,760]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="limpopoana">
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<emphasis id="B97BA67A02218E36DDD8FD06FDCA6DDF" box="[461,626,734,760]" italics="true" pageId="18" pageNumber="219">E. limpopoana</emphasis>
|
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</taxonomicName>
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and
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<taxonomicName id="4C0F01EB02218E36DEBDFD06FB886DDF" authority="(Archer & Carter 2001)" baseAuthorityName="Archer & Carter" baseAuthorityYear="2001" box="[680,1072,734,760]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="schinzii">
|
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<emphasis id="B97BA67A02218E36DEBDFD06FCA66DDF" box="[680,798,734,760]" italics="true" pageId="18" pageNumber="219">E. schinzii</emphasis>
|
||
(
|
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<bibRefCitation id="EF9E079902218E36DF3EFD07FB906DDF" author="Archer, R. H. & Carter, S." box="[811,1064,734,760]" pageId="18" pageNumber="219" pagination="86 - 90" refId="ref15853" refString="Archer, R. H. & Carter, S. (2001) Euphorbia venteri. The Flowering Plants of Africa 57: 86 - 90." type="journal article" year="2001">Archer & Carter 2001</bibRefCitation>
|
||
)
|
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</taxonomicName>
|
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.
|
||
</paragraph>
|
||
<caption id="DF702AE002218E36DC9DF926FDEF6832" ID-DOI="http://doi.org/10.5281/zenodo.13874492" ID-Zenodo-Dep="13874492" box="[136,599,1791,1813]" httpUri="https://zenodo.org/record/13874492/files/figure.png" pageId="18" pageNumber="219" startId="18.[136,229,1791,1813]" targetBox="[151,1436,785,1766]" targetPageId="18" targetType="figure">
|
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<paragraph id="8BB07A6802218E36DC9DF926FDEF6832" blockId="18.[136,599,1791,1813]" box="[136,599,1791,1813]" pageId="18" pageNumber="219">
|
||
<emphasis id="B97BA67A02218E36DC9DF926FEB06833" bold="true" box="[136,264,1791,1813]" pageId="18" pageNumber="219">FIGURE 11.</emphasis>
|
||
Distribution of
|
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<taxonomicName id="4C0F01EB02218E36DDB7F926FDEA6832" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[418,594,1791,1813]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="venteri">
|
||
<emphasis id="B97BA67A02218E36DDB7F926FDEA6832" box="[418,594,1791,1813]" italics="true" pageId="18" pageNumber="219">Euphorbia venteri</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BB07A6802218E37DCA8F89AFE0D6E6E" blockId="18.[136,1452,1859,2066]" lastBlockId="19.[136,1452,158,761]" lastPageId="19" lastPageNumber="220" pageId="18" pageNumber="219">
|
||
North of
|
||
<collectingRegion id="49CBB48A02218E36DD30F89AFE17687A" box="[293,431,1859,1885]" country="Botswana" name="Francistown" pageId="18" pageNumber="219">Francistown</collectingRegion>
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||
<taxonomicName id="4C0F01EB02218E36DDA2F89DFD9D687A" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[439,549,1860,1885]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="species" species="venteri">
|
||
<emphasis id="B97BA67A02218E36DDA2F89DFD9D687A" box="[439,549,1860,1885]" italics="true" pageId="18" pageNumber="219">E. venteri</emphasis>
|
||
</taxonomicName>
|
||
is common between Tsesebe, Tutuma and Zwenhambe (
|
||
<figureCitation id="133466ED02218E36D8B7F89AFB4B6879" box="[1186,1267,1859,1886]" captionStart="FIGURE 11" captionStartId="18.[136,229,1791,1813]" captionTargetBox="[151,1436,785,1766]" captionTargetId="figure-252@18.[151,1436,785,1766]" captionTargetPageId="18" captionText="FIGURE 11. Distribution of Euphorbia venteri." figureDoi="http://doi.org/10.5281/zenodo.13874492" httpUri="https://zenodo.org/record/13874492/files/figure.png" pageId="18" pageNumber="219">Fig. 11</figureCitation>
|
||
). The
|
||
<typeStatus id="54B4C4CA02218E36D929F89DFAD46879" box="[1340,1388,1860,1886]" pageId="18" pageNumber="219">type</typeStatus>
|
||
plant and other plants seen around Tsesebe were small and compact, with rhizomatous branches running horizontally underground for up to
|
||
<quantity id="4CF7D78D02218E36DD9AF855FE6F6881" box="[399,471,1932,1958]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="18" pageNumber="219" unit="cm" value="10.0">10 cm</quantity>
|
||
(then projecting above-ground for
|
||
<quantity id="4CF7D78D02218E36DF7AF855FC6E6881" box="[879,982,1932,1958]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" metricValueMax="10.0" metricValueMin="2.0" pageId="18" pageNumber="219" unit="cm" value="6.0" valueMax="10.0" valueMin="2.0">2−10 cm</quantity>
|
||
) and spines
|
||
<quantity id="4CF7D78D02218E36D87CF852FB726881" box="[1129,1226,1931,1958]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" metricValueMax="6.0" metricValueMin="2.0" pageId="18" pageNumber="219" unit="mm" value="4.0" valueMax="6.0" valueMin="2.0">2−6 mm</quantity>
|
||
long. Others found near Zwenhambe were laxly branched in clumps to
|
||
<quantity id="4CF7D78D02218E36DEDCF869FCB168ED" box="[713,777,1968,1994]" metricMagnitude="-1" metricUnit="m" metricValue="3.0" pageId="18" pageNumber="219" unit="m" value="0.3">0.3 m</quantity>
|
||
in diam., with branches to
|
||
<quantity id="4CF7D78D02218E36D822F869FBC368ED" box="[1079,1147,1968,1994]" metricMagnitude="-1" metricUnit="m" metricValue="2.0" pageId="18" pageNumber="219" unit="cm" value="20.0">20 cm</quantity>
|
||
long above the ground and spines up to
|
||
<quantity id="4CF7D78D02218E36DD07F80DFED868C9" box="[274,352,2004,2030]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="18" pageNumber="219" unit="mm" value="10.0">10 mm</quantity>
|
||
long. In these specimens there were no rhizomatous branches and they were difficult to distinguish from small plants of
|
||
<taxonomicName id="4C0F01EB02218E36DD6FF821FD776736" box="[378,719,2039,2065]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="18" pageNumber="219" phylum="Tracheophyta" rank="subSpecies" species="schinzii" subSpecies="bechuanica">
|
||
<emphasis id="B97BA67A02218E36DD6FF821FE496736" box="[378,497,2039,2065]" italics="true" pageId="18" pageNumber="219">E. schinzii</emphasis>
|
||
subsp.
|
||
<emphasis id="B97BA67A02218E36DE5FF82EFD776736" box="[586,719,2039,2065]" italics="true" pageId="18" pageNumber="219">bechuanica</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97BA67A02218E36DEDBF82EFD6A6736" box="[718,722,2039,2065]" italics="true" pageId="18" pageNumber="219">.</emphasis>
|
||
The branches are variable in cross-section, from 4-angled (
|
||
<figureCitation id="133466ED02218E37D96BF82EFF146F9F" captionStart="FIGURE 1" captionStartId="3.[136,229,1407,1429]" captionTargetBox="[166,1424,434,1367]" captionTargetId="figure-157@3.[151,1436,422,1378]" captionTargetPageId="3" captionText="FIGURE 1. Tips of branches showing arrangement of tubercles and spine-shields with spines and stipular prickles. A–D, tubercles fused vertically into angles (though fusion of tubercles is the least in D), often with larger stipular prickles (largest inA and B and smallest in D) and spine-shields narrowly elliptic in A and B becoming more narrowly deltate in C and D, E–H, tubercles not fused vertically into angles, with minute stipular prickles and shortly deltate spine-shields, which are especially short in E and G. A, E. schinzii subsp. schinzii, Bruyns 9390 (BOL), ± 8 mm thick. B, E. schinzii subsp. bechuanica, Bruyns 12101 (BOL), ± 10 mm thick. C, E. schinzii subsp. schinzioides, Bruyns 12426 (BOL), ± 8 mm thick. D, E. venteri, Bruyns 12354 (BOL), ± 6 mm thick. E, E. clivicola subsp. clivicola, Bruyns 12115 (BOL), ± 10 mm thick. F, E. clivicola subsp. clivicola, Bruyns 11329 (BOL), ± 6 mm thick. G, E. clivicola subsp. clivicola, Bruyns 13556 (BOL), ± 8 mm thick. H, E. clivicola subsp. calcritica, Bruyns 12045 (BOL), ± 6 mm thick." figureDoi="http://doi.org/10.5281/zenodo.13874452" httpUri="https://zenodo.org/record/13874452/files/figure.png" lastPageId="19" lastPageNumber="220" pageId="18" pageNumber="219">Fig. 1D</figureCitation>
|
||
), to obscurely 4-angled, with the tubercles forming wedge-shaped pairs along the branch (as shown in the figure of the
|
||
<typeStatus id="54B4C4CA02208E37DCC3FF1AFEBE6FFA" box="[214,262,195,221]" pageId="19" pageNumber="220">type</typeStatus>
|
||
in
|
||
<bibRefCitation id="EF9E079902208E37DD3BFF1BFD8F6FFB" author="Archer, R. H. & Carter, S." box="[302,567,194,220]" pageId="19" pageNumber="220" pagination="86 - 90" refId="ref15853" refString="Archer, R. H. & Carter, S. (2001) Euphorbia venteri. The Flowering Plants of Africa 57: 86 - 90." type="journal article" year="2001">Archer & Carter, 2001</bibRefCitation>
|
||
, where they are not ‘cylindrical’ at all), to almost cylindrical. Consequently, although they may occur, ‘cylindrical branches’ are not typical of
|
||
<taxonomicName id="4C0F01EB02208E37DF73FF3EFC6A6E27" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[870,978,231,256]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="19" pageNumber="220" phylum="Tracheophyta" rank="species" species="venteri">
|
||
<emphasis id="B97BA67A02208E37DF73FF3EFC6A6E27" box="[870,978,231,256]" italics="true" pageId="19" pageNumber="220">E. venteri</emphasis>
|
||
</taxonomicName>
|
||
(see also
|
||
<figureCitation id="133466ED02208E37D855FF3FFB276E26" box="[1088,1183,230,257]" captionStart="FIGURE 1" captionStartId="3.[136,229,1407,1429]" captionTargetBox="[166,1424,434,1367]" captionTargetId="figure-157@3.[151,1436,422,1378]" captionTargetPageId="3" captionText="FIGURE 1. Tips of branches showing arrangement of tubercles and spine-shields with spines and stipular prickles. A–D, tubercles fused vertically into angles (though fusion of tubercles is the least in D), often with larger stipular prickles (largest inA and B and smallest in D) and spine-shields narrowly elliptic in A and B becoming more narrowly deltate in C and D, E–H, tubercles not fused vertically into angles, with minute stipular prickles and shortly deltate spine-shields, which are especially short in E and G. A, E. schinzii subsp. schinzii, Bruyns 9390 (BOL), ± 8 mm thick. B, E. schinzii subsp. bechuanica, Bruyns 12101 (BOL), ± 10 mm thick. C, E. schinzii subsp. schinzioides, Bruyns 12426 (BOL), ± 8 mm thick. D, E. venteri, Bruyns 12354 (BOL), ± 6 mm thick. E, E. clivicola subsp. clivicola, Bruyns 12115 (BOL), ± 10 mm thick. F, E. clivicola subsp. clivicola, Bruyns 11329 (BOL), ± 6 mm thick. G, E. clivicola subsp. clivicola, Bruyns 13556 (BOL), ± 8 mm thick. H, E. clivicola subsp. calcritica, Bruyns 12045 (BOL), ± 6 mm thick." figureDoi="http://doi.org/10.5281/zenodo.13874452" httpUri="https://zenodo.org/record/13874452/files/figure.png" pageId="19" pageNumber="220">Fig. 1 D</figureCitation>
|
||
, where they are also not cylindrical). Since both
|
||
<taxonomicName id="4C0F01EB02208E37DD82FED2FDB46E03" baseAuthorityName="Archer & Carter" baseAuthorityYear="2001" box="[407,524,266,292]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="19" pageNumber="220" phylum="Tracheophyta" rank="species" species="schinzii">
|
||
<emphasis id="B97BA67A02208E37DD82FED2FDB46E03" box="[407,524,266,292]" italics="true" pageId="19" pageNumber="220">E. schinzii</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C0F01EB02208E37DE56FED2FD096E03" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[579,689,267,292]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="19" pageNumber="220" phylum="Tracheophyta" rank="species" species="venteri">
|
||
<emphasis id="B97BA67A02208E37DE56FED2FD096E03" box="[579,689,267,292]" italics="true" pageId="19" pageNumber="220">E. venteri</emphasis>
|
||
</taxonomicName>
|
||
may have rhizomatous branches, this feature also does not separate
|
||
<taxonomicName id="4C0F01EB02208E37DC9DFEF6FF4D6E6F" authorityName="L. C. Leach ex Archer & Carter" authorityYear="2001" box="[136,245,303,328]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="19" pageNumber="220" phylum="Tracheophyta" rank="species" species="venteri">
|
||
<emphasis id="B97BA67A02208E37DC9DFEF6FF4D6E6F" box="[136,245,303,328]" italics="true" pageId="19" pageNumber="220">E. venteri</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<taxonomicName id="4C0F01EB02208E37DD2CFEF6FE166E6F" baseAuthorityName="Archer & Carter" baseAuthorityYear="2001" box="[313,430,302,328]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="19" pageNumber="220" phylum="Tracheophyta" rank="species" species="schinzii">
|
||
<emphasis id="B97BA67A02208E37DD2CFEF6FE166E6F" box="[313,430,302,328]" italics="true" pageId="19" pageNumber="220">E. schinzii</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8BB07A6802208E37DCA8FE8BFE476EFF" blockId="19.[136,1452,158,761]" pageId="19" pageNumber="220">This species is distinguished from others in this complex by its pale grey-green, weakly 4-angled to almost cylindrical branches with paler markings between the angles, spine-shields slender below the spines and tapering to a fine point, as well as the dull yellowish green to brownish green cyathial glands that may be suffused with red towards their margins and the red anthers.</paragraph>
|
||
<paragraph id="8BB07A6802208E37DCA8FE3BFF596D4F" blockId="19.[136,1452,158,761]" pageId="19" pageNumber="220">
|
||
At present, this is the only species of
|
||
<taxonomicName id="4C0F01EB02208E37DE67FE3BFD526EDB" authorityName="Linneaus" authorityYear="1753" box="[626,746,482,508]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="19" pageNumber="220" phylum="Tracheophyta" rank="genus">
|
||
<emphasis id="B97BA67A02208E37DE67FE3BFD526EDB" box="[626,746,482,508]" italics="true" pageId="19" pageNumber="220">Euphorbia</emphasis>
|
||
</taxonomicName>
|
||
that is endemic to
|
||
<collectingCountry id="F3183AF802208E37DFDDFE3AFB826EDA" box="[968,1082,483,509]" name="Botswana" pageId="19" pageNumber="220">Botswana</collectingCountry>
|
||
. Since it occurs close to the NE border of the country, it may occur in adjacent parts of
|
||
<collectingCountry id="F3183AF802208E37DEEEFDDFFCCE6D07" box="[763,886,518,544]" name="Zimbabwe" pageId="19" pageNumber="220">Zimbabwe</collectingCountry>
|
||
. Its relationships to material recorded by
|
||
<bibRefCitation id="EF9E079902208E37D95EFDDFFF4E6D63" author="White, A. & Dyer, R. A. & Sloane, B. L." pageId="19" pageNumber="220" refId="ref17146" refString="White, A., Dyer, R. A. & Sloane, B. L. (1941) The Succulent Euphorbieae (Southern Africa). Abbey Garden Press, Pasadena, California, 990 pp." type="book" year="1941">
|
||
White
|
||
<emphasis id="B97BA67A02208E37D982FDDEFF266D63" italics="true" pageId="19" pageNumber="220">et al</emphasis>
|
||
. (1941)
|
||
</bibRefCitation>
|
||
and
|
||
<bibRefCitation id="EF9E079902208E37DD39FDF3FE796D63" author="Leach, L. C." box="[300,449,554,580]" pageId="19" pageNumber="220" pagination="131 - 137" refId="ref16873" refString="Leach, L. C. (1991) Euphorbia griseola Pax: its subspecies & relationships. The Euphorbia Journal 7: 131 - 137." type="journal article" year="1991">Leach (1991)</bibRefCitation>
|
||
from
|
||
<collectingRegion id="49CBB48A02208E37DE10FDF3FDC16D63" box="[517,633,554,580]" country="Zimbabwe" name="Bulawayo" pageId="19" pageNumber="220">Bulawayo</collectingRegion>
|
||
,
|
||
<collectingCountry id="F3183AF802208E37DE91FDF3FD446D63" box="[644,764,554,580]" name="Zimbabwe" pageId="19" pageNumber="220">Zimbabwe</collectingCountry>
|
||
and to
|
||
<taxonomicName id="4C0F01EB02208E37DF5BFDF2FC766D63" authorityName="Carter" authorityYear="2000" box="[846,974,555,580]" class="Magnoliopsida" family="Euphorbiaceae" genus="Euphorbia" kingdom="Plantae" order="Malpighiales" pageId="19" pageNumber="220" phylum="Tracheophyta" rank="species" species="acervata">
|
||
<emphasis id="B97BA67A02208E37DF5BFDF2FC766D63" box="[846,974,555,580]" italics="true" pageId="19" pageNumber="220">E. acervata</emphasis>
|
||
</taxonomicName>
|
||
from the Great Dyke in
|
||
<collectingCountry id="F3183AF802208E37D8CAFDF3FAEF6D63" box="[1247,1367,554,580]" name="Zimbabwe" pageId="19" pageNumber="220">Zimbabwe</collectingCountry>
|
||
remain unclear.
|
||
</paragraph>
|
||
<paragraph id="8BB07A6802208E37DCA8FDABFC296DDF" blockId="19.[136,1452,158,761]" pageId="19" pageNumber="220">
|
||
<emphasis id="B97BA67A02208E37DCA8FDABFDF96DAB" bold="true" box="[189,577,626,652]" pageId="19" pageNumber="220">Additional specimens examined:</emphasis>
|
||
—
|
||
<collectingCountry id="F3183AF802208E37DE4BFDABFD456DAB" box="[606,765,626,652]" name="Botswana" pageId="19" pageNumber="220">BOTSWANA</collectingCountry>
|
||
. Tutuma (2027AC),
|
||
<quantity id="4CF7D78D02208E37DFF6FDABFB826DAA" box="[995,1082,626,653]" metricMagnitude="3" metricUnit="m" metricValue="1.0699999999999998" pageId="19" pageNumber="220" unit="m" value="1070.0">1070 m</quantity>
|
||
,
|
||
<emphasis id="B97BA67A02208E37D853FDAAFB5B6DAB" box="[1094,1251,626,652]" italics="true" pageId="19" pageNumber="220">Bruyns 12363</emphasis>
|
||
(MO).
|
||
<quantity id="4CF7D78D02208E37D92DFDABFAC96DAB" box="[1336,1393,626,652]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="19" pageNumber="220" unit="km" value="2.0">2 km</quantity>
|
||
west of Zwenhambe (2027AD),
|
||
<quantity id="4CF7D78D02208E37DDACFD4FFDA86D96" box="[441,528,662,689]" metricMagnitude="3" metricUnit="m" metricValue="1.27" pageId="19" pageNumber="220" unit="m" value="1270.0">1270 m</quantity>
|
||
,
|
||
<emphasis id="B97BA67A02208E37DE09FD4EFD006D97" box="[540,696,662,688]" italics="true" pageId="19" pageNumber="220">Bruyns 12359</emphasis>
|
||
(BOL). Southern end of Tutuma (2027CA),
|
||
<quantity id="4CF7D78D02208E37D8B8FD4FFABB6D96" box="[1197,1283,662,689]" metricMagnitude="3" metricUnit="m" metricValue="1.15" pageId="19" pageNumber="220" unit="m" value="1150.0">1150 m</quantity>
|
||
,
|
||
<emphasis id="B97BA67A02208E37D91AFD4EFA136D97" box="[1295,1451,662,688]" italics="true" pageId="19" pageNumber="220">Bruyns 12362</emphasis>
|
||
(NBG).
|
||
<quantity id="4CF7D78D02208E37DCF0FD63FE956DF3" box="[229,301,698,724]" metricMagnitude="4" metricUnit="m" metricValue="2.1" pageId="19" pageNumber="220" unit="km" value="21.0">21 km</quantity>
|
||
west of Tsesebe (2027CB),
|
||
<quantity id="4CF7D78D02208E37DE7AFD63FD7F6DF2" box="[623,711,698,725]" metricMagnitude="3" metricUnit="m" metricValue="1.2" pageId="19" pageNumber="220" unit="m" value="1200.0">1200 m</quantity>
|
||
,
|
||
<emphasis id="B97BA67A02208E37DEC1FD62FCCA6DF3" box="[724,882,698,724]" italics="true" pageId="19" pageNumber="220">Bruyns 12355</emphasis>
|
||
(UPS).
|
||
<quantity id="4CF7D78D02208E37DFDAFD63FBB16DF3" box="[975,1033,698,724]" metricMagnitude="3" metricUnit="m" metricValue="9.0" pageId="19" pageNumber="220" unit="km" value="9.0">9 km</quantity>
|
||
west of Tsesebe (2027DA),
|
||
<quantity id="4CF7D78D02208E37D95BFD63FA1F6DF2" box="[1358,1447,698,725]" metricMagnitude="3" metricUnit="m" metricValue="1.2" pageId="19" pageNumber="220" unit="m" value="1200.0">1200 m</quantity>
|
||
,
|
||
<emphasis id="B97BA67A02208E37DC9DFD06FE9C6DDF" box="[136,292,734,760]" italics="true" pageId="19" pageNumber="220">Bruyns 12354</emphasis>
|
||
(S). Tsesebe (2027DC),
|
||
<quantity id="4CF7D78D02208E37DE2FFD07FD286DDE" box="[570,656,734,761]" metricMagnitude="3" metricUnit="m" metricValue="1.18" pageId="19" pageNumber="220" unit="m" value="1180.0">1180 m</quantity>
|
||
,
|
||
<emphasis id="B97BA67A02208E37DE89FD06FC806DDF" box="[668,824,734,760]" italics="true" pageId="19" pageNumber="220">Bruyns 12353</emphasis>
|
||
(BOL).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |