252 lines
17 KiB
XML
252 lines
17 KiB
XML
<document ID-DOI="10.5252/a2012n1a3" ID-ISSN="1639-4798" ID-Zenodo-Dep="4599312" approvalRequired="48" approvalRequired_for_taxonomicNames="2" approvalRequired_for_textStreams="42" approvalRequired_for_treatments="4" checkinTime="1615490873041" checkinUser="carolina" docAuthor="Droissart, Vincent, Sonké, Bonaventure, Lowry Ii, Porter P., Pollard, Benedict John & Stévart, Tariq" docDate="2012" docId="03EFD165FFC37F64C2E1FF24FBF3FE5F" docLanguage="fr" docName="Adansonia.34.1.23-35.pdf" docOrigin="Adansonia (3) 34 (1)" docSource="http://dx.doi.org/10.5252/a2012n1a3" docStyle="DocumentStyle:B98EC8A323C0F63E1C55336AD58D9273.1:Adansonia.2011-2014.journal_article" docStyleId="B98EC8A323C0F63E1C55336AD58D9273" docStyleName="Adansonia.2011-2014.journal_article" docStyleVersion="1" docTitle="Aerangis megaphylla Summerh." docType="treatment" docVersion="2" lastPageNumber="26" masterDocId="FFD6A91DFFC07F67C231FFFCFF8BFFCE" masterDocTitle="Notes taxonomiques et chorologiques sur quelques Orchidaceae endémiques d’Afrique centrale atlantique" masterLastPageNumber="35" masterPageNumber="23" pageId="3" pageNumber="26" updateTime="1615492891782" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
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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>Notes taxonomiques et chorologiques sur quelques Orchidaceae endémiques d’Afrique centrale atlantique</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>Droissart, Vincent</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>Sonké, Bonaventure</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>Lowry Ii, Porter P.</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>Pollard, Benedict John</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>Stévart, Tariq</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>Adansonia</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2012</mods:date>
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<mods:detail type="series">
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<mods:title>3</mods:title>
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</mods:detail>
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<mods:detail type="pubDate">
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<mods:number>2012-06-30</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>34</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>23</mods:start>
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<mods:end>35</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/10.5252/a2012n1a3</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">10.5252/a2012n1a3</mods:identifier>
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<mods:identifier type="ISSN">1639-4798</mods:identifier>
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<mods:identifier type="Zenodo-Dep">4599312</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:plazi:treatment:03EFD165FFC37F64C2E1FF24FBF3FE5F" httpUri="http://treatment.plazi.org/id/03EFD165FFC37F64C2E1FF24FBF3FE5F" lastPageNumber="26" pageId="3" pageNumber="26">
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<subSubSection pageId="3" pageNumber="26" type="nomenclature">
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||
<paragraph blockId="3.[208,552,215,242]" box="[208,552,215,242]" pageId="3" pageNumber="26">
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<heading box="[208,552,215,242]" centered="true" fontSize="11" level="2" pageId="3" pageNumber="26" reason="3">
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<taxonomicName authority="Summerh." box="[208,552,215,242]" class="Liliopsida" family="Orchidaceae" genus="Aerangis" kingdom="Plantae" order="Asparagales" pageId="3" pageNumber="26" phylum="Tracheophyta" rank="species" species="megaphylla">
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<emphasis bold="true" box="[208,430,215,242]" italics="true" pageId="3" pageNumber="26">Aerangis megaphylla</emphasis>
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Summerh.
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph blockId="3.[112,648,273,969]" pageId="3" pageNumber="26">
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<emphasis italics="true" pageId="3" pageNumber="26">Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem</emphasis>
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13: 698 (1937). —
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<materialsCitation collectingDate="1911-09" country="Guinee equatoriale (Annobon)" location="Guinee equatoriale (Annobon)" pageId="3" pageNumber="26" specimenCount="1" typeStatus="holotype">
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||
<typeStatus box="[453,501,300,324]" pageId="3" pageNumber="26">Type</typeStatus>
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:
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<collectingCountry isEnumeration="true" pageId="3" pageNumber="26">Guinée équatoriale (Annobón)</collectingCountry>
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, cratère nord, début de la forêt de brume,
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<date box="[192,276,352,376]" pageId="3" pageNumber="26" value="1911-09">
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<collectingDate box="[192,276,352,376]" pageId="3" pageNumber="26" value="1911-09">IX.1911</collectingDate>
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</date>
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,
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<emphasis box="[287,443,352,376]" italics="true" pageId="3" pageNumber="26">Mildbraed 6504</emphasis>
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(holo-, K!)
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="26" type="description">
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<paragraph blockId="3.[112,648,273,969]" pageId="3" pageNumber="26">
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<materialsCitation collectingDate="1959-07-14" collectingDateMax="1959-07-18" collectingDateMin="1959-07-14" collectionCode="MA" collectorName="Wrigley & Melville" country="Guinee equatoriale (Annobon)" county="Wrigley" elevation="600" location="Ridge" municipality="Crater Lake" pageId="3" pageNumber="26" specimenCount="1">
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MATÉRIEL EXAMINÉ. —
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<emphasis bold="true" box="[340,646,401,425]" pageId="3" pageNumber="26">
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<collectingCountry box="[340,642,401,425]" isEnumeration="true" pageId="3" pageNumber="26">Guinée équatoriale (Annobón)</collectingCountry>
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.
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</emphasis>
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<location LSID="urn:lsid:plazi:treatment:03EFD165FFC37F64C2E1FF24FBF3FE5F:8E9936A8FFC37F64C240FE56FF25FE0C" box="[113,174,426,450]" country="Guinee equatoriale (Annobon)" county="Wrigley" municipality="Crater Lake" name="Ridge" pageId="3" pageNumber="26">Ridge</location>
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<locationDeviation box="[184,397,426,451]" location="Lago Mazafin" pageId="3" pageNumber="26">W of Lago Mazafin</locationDeviation>
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(
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<collectingMunicipality box="[414,548,426,450]" pageId="3" pageNumber="26">Crater Lake</collectingMunicipality>
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),
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<quantity box="[568,642,426,450]" metricMagnitude="2" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="26" unit="m" value="600.0">
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<elevation box="[568,642,426,450]" metricMagnitude="2" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="26" unit="m" value="600.0">600 m</elevation>
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</quantity>
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,
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<date box="[113,238,453,477]" pageId="3" pageNumber="26" value="1959-07-14">
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<collectingDate box="[113,238,453,477]" pageId="3" pageNumber="26" value="1959-07-14">14.VII.1959</collectingDate>
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</date>
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,
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<emphasis box="[246,345,453,477]" italics="true" pageId="3" pageNumber="26">
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<collectingCounty box="[246,316,453,477]" pageId="3" pageNumber="26">Wrigley</collectingCounty>
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34
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</emphasis>
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(BR!, KA!,
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<collectionCode box="[455,499,453,477]" country="Spain" lsid="urn:lsid:biocol.org:col:15682" name="Real Jardín Botánico" pageId="3" pageNumber="26" type="Herbarium">MA</collectionCode>
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!);
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<date box="[518,642,453,477]" pageId="3" pageNumber="26" value="1959-07-18">
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<collectingDate box="[518,642,453,477]" pageId="3" pageNumber="26" value="1959-07-18">18.VII.1959</collectingDate>
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</date>
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,
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<emphasis box="[112,214,479,503]" italics="true" pageId="3" pageNumber="26">Wrigley 53</emphasis>
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(K!). —
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<emphasis box="[306,386,479,503]" italics="true" pageId="3" pageNumber="26">Sine loc.</emphasis>
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, 1956,
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<emphasis box="[462,560,479,503]" italics="true" pageId="3" pageNumber="26">Rose 1042</emphasis>
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(K!, P!). —
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<emphasis box="[147,223,506,530]" italics="true" pageId="3" pageNumber="26">Sine loc</emphasis>
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.,
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<emphasis box="[244,433,505,530]" italics="true" pageId="3" pageNumber="26">sine date, Rose 637</emphasis>
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(P!). — Ridge
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<locationDeviation location="Crater Lake" pageId="3" pageNumber="26">W of Crater Lake</locationDeviation>
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,
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<quantity box="[247,315,532,556]" metricMagnitude="2" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="26" unit="m" value="600.0">
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<elevation box="[247,315,532,556]" metricMagnitude="2" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="26" unit="m" value="600.0">600 m</elevation>
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</quantity>
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,
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<date box="[328,454,532,556]" pageId="3" pageNumber="26" value="1959-07-14">
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<collectingDate box="[328,454,532,556]" pageId="3" pageNumber="26" value="1959-07-14">14.VII.1959</collectingDate>
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</date>
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,
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<emphasis italics="true" pageId="3" pageNumber="26">
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<collectorName box="[466,537,532,556]" pageId="3" pageNumber="26">Wrigley</collectorName>
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&
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<collectorName box="[572,648,532,556]" pageId="3" pageNumber="26">Melville</collectorName>
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34
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</emphasis>
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(K!,
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<collectionCode box="[190,235,559,583]" country="Spain" lsid="urn:lsid:biocol.org:col:15682" name="Real Jardín Botánico" pageId="3" pageNumber="26" type="Herbarium">MA</collectionCode>
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!)
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</materialsCitation>
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.
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</paragraph>
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||
</subSubSection>
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<subSubSection pageId="3" pageNumber="26" type="distribution">
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<paragraph blockId="3.[112,648,273,969]" pageId="3" pageNumber="26">
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DISTRIBUTION. — Endémique de l’île d’Annobón,
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<collectingCountry name="Equatorial Guinea" pageId="3" pageNumber="26">Guinée équatoriale</collectingCountry>
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(
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<figureCitation box="[274,350,633,657]" captionStart="FIG" captionStartId="5.[113,124,1612,1629]" captionText="FIG. 1. — A, carte montrant notre principale zone d’investigation,l’Afrique centrale atlantique; B-J, distribution des taxons concernés par cette étude; B, Aerangis bouarensis Chiron; C, Aerangis megaphylla Summerh.; D, Ancistrorhynchus capitatus (Lindl.) Summerh.; E, Bulbophyllum schinzianum Kraenzl.var.schinzianum; F, Bulbophyllum teretifolium Schltr.; G, Liparis goodyeroides Schltr.; H, Liparis suborbicularis Summerh.; I, Polystachya superposita Rchb.f.; J, Rangaeris rhipsalisocia (Rchb.f.) Summerh." pageId="3" pageNumber="26">Fig. 1C</figureCitation>
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).
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</paragraph>
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<paragraph blockId="3.[112,648,273,969]" pageId="3" pageNumber="26">
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CONSERVATION. — En danger critique d’extinction: CR B2ab(ii, iii, v). Cette espèce est endémique d’Annobón; les collections connues de cette île sont traitées ici comme provenant d’une seule localité. Suite à la déforestation, on observe une diminution de la qualité de l’habitat à basse et moyenne altitude dans les îles du Golfe de
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<collectingCountry name="Guinea-Bissau" pageId="3" pageNumber="26">Guinée</collectingCountry>
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. Cette dégradation/disparition de l’habitat forestier touche la population d’
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<emphasis box="[333,526,865,889]" italics="true" pageId="3" pageNumber="26">
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<taxonomicName box="[333,522,865,889]" class="Liliopsida" family="Orchidaceae" genus="Aerangis" kingdom="Plantae" order="Asparagales" pageId="3" pageNumber="26" phylum="Tracheophyta" rank="species" species="megaphylla">Aerangis megaphylla</taxonomicName>
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,
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</emphasis>
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qui vit entre 250 et
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<quantity box="[176,238,892,916]" metricMagnitude="2" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="26" unit="m" value="600.0">600 m</quantity>
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d’altitude, raison pour laquelle cette espèce est considérée ici comme en danger critique d’extinction selon l’UICN (2001).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="26" type="description">
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<paragraph blockId="3.[111,649,1008,1700]" box="[113,175,1008,1034]" pageId="3" pageNumber="26">NOTE</paragraph>
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<paragraph blockId="3.[111,649,1008,1700]" pageId="3" pageNumber="26">
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L’étude du matériel présent à K attribué à cette espèce a montré que les échantillons provenant du continent (
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<emphasis box="[235,408,1103,1129]" italics="true" pageId="3" pageNumber="26">Mildbread 9640</emphasis>
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et
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<emphasis box="[444,592,1103,1129]" italics="true" pageId="3" pageNumber="26">Le Testu 3969</emphasis>
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) ont été incorrectement identifiés par
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<bibRefCitation author="STEWART J." box="[476,643,1135,1161]" pageId="3" pageNumber="26" pagination="239 - 319" refId="ref9314" refString="STEWART J. 1979. - A revision of the African species of Aerangis (Orchidaceae). Kew Bulletin 34 (2): 239 - 319." type="journal article" year="1979">Stewart (1979)</bibRefCitation>
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. En effet, ces deux échantillons présentent un éperon de plus de
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<quantity box="[230,299,1198,1224]" metricMagnitude="-1" metricUnit="m" metricValue="1.7" pageId="3" pageNumber="26" unit="cm" value="17.0">17 cm</quantity>
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de longueur, tandis qu’
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<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Aerangis" kingdom="Plantae" order="Asparagales" pageId="3" pageNumber="26" phylum="Tracheophyta" rank="species" species="megaphylla">
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<emphasis italics="true" pageId="3" pageNumber="26">Aerangis megaphylla</emphasis>
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</taxonomicName>
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possède un éperon ne dépassant pas
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<quantity box="[115,187,1261,1288]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="3" pageNumber="26" unit="cm" value="10.0">10 cm</quantity>
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. Ces deux échantillons appartiennent donc plutôt à une espèce récemment décrite de
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<collectingCountry name="Central African Republic" pageId="3" pageNumber="26">République Centrafricaine</collectingCountry>
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,
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<taxonomicName box="[335,468,1325,1351]" class="Liliopsida" family="Orchidaceae" genus="Aerangis" kingdom="Plantae" order="Asparagales" pageId="3" pageNumber="26" phylum="Tracheophyta" rank="species" species="bouarensis">
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<emphasis box="[335,468,1325,1351]" italics="true" pageId="3" pageNumber="26">A. bouarensis</emphasis>
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</taxonomicName>
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, qui se rencontre dans les forêts riveraines et dans une végétation de
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<typeStatus box="[113,159,1389,1415]" pageId="3" pageNumber="26">type</typeStatus>
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savane arborée, et qui possède un éperon atteignant
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<quantity box="[207,274,1420,1446]" metricMagnitude="-1" metricUnit="m" metricValue="1.9" pageId="3" pageNumber="26" unit="cm" value="19.0">19 cm</quantity>
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de longueur. De plus, l’échantillon
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<emphasis box="[113,285,1451,1477]" italics="true" pageId="3" pageNumber="26">Mildbread 9640</emphasis>
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(K) donné comme présent à Buea (
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<collectingCountry box="[119,237,1483,1509]" name="Cameroon" pageId="3" pageNumber="26">Cameroun</collectingCountry>
|
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) par
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<bibRefCitation author="STEWART J." box="[290,449,1483,1509]" pageId="3" pageNumber="26" pagination="239 - 319" refId="ref9314" refString="STEWART J. 1979. - A revision of the African species of Aerangis (Orchidaceae). Kew Bulletin 34 (2): 239 - 319." type="journal article" year="1979">Stewart (1979)</bibRefCitation>
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provient en réalité de Bŭar (
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<collectingCountry box="[207,499,1515,1542]" name="Central African Republic" pageId="3" pageNumber="26">République Centrafricaine</collectingCountry>
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), localité où a été récolté le spécimen
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<typeStatus box="[363,409,1547,1573]" pageId="3" pageNumber="26">type</typeStatus>
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d’
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<taxonomicName box="[437,574,1546,1573]" class="Liliopsida" family="Orchidaceae" genus="Aerangis" kingdom="Plantae" order="Asparagales" pageId="3" pageNumber="26" phylum="Tracheophyta" rank="species" species="bouarensis">
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<emphasis box="[437,574,1546,1573]" italics="true" pageId="3" pageNumber="26">A. bouarensis</emphasis>
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</taxonomicName>
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. Nous avons également identifié un échantillon du
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<collectingCountry name="Cameroon" pageId="3" pageNumber="26">Cameroun</collectingCountry>
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appartenant à cette espèce et récolté dans l’Adamaoua (
|
||
<emphasis box="[257,367,1642,1667]" italics="true" pageId="3" pageNumber="26">Leroux s.n.</emphasis>
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, photo et description dans
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<emphasis box="[112,264,1673,1699]" italics="true" pageId="3" pageNumber="26">L’Orchidophile</emphasis>
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85: 12 [Leroux 1989]).
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</paragraph>
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<paragraph blockId="3.[674,1210,216,401]" pageId="3" pageNumber="26">
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<taxonomicName box="[699,908,216,242]" class="Liliopsida" family="Orchidaceae" genus="Aerangis" kingdom="Plantae" order="Asparagales" pageId="3" pageNumber="26" phylum="Tracheophyta" rank="species" species="megaphylla">
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<emphasis box="[699,908,216,242]" italics="true" pageId="3" pageNumber="26">Aerangis megaphylla</emphasis>
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</taxonomicName>
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est donc bien endémique de l’île d’Annobón (
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<collectingCountry box="[848,1049,247,274]" name="Equatorial Guinea" pageId="3" pageNumber="26">Guinée équatoriale</collectingCountry>
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), comme l’avait signalé
|
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<bibRefCitation author="EXELL A. W." box="[749,878,279,305]" pageId="3" pageNumber="26" pagination="327 - 411" refId="ref8063" refString="EXELL A. W. 1973. - Angiosperms of the Islands of the Gulf of Guinea (Fernando Po, Principe, S. Tome and Annobon). Bulletin of the British Museum (Natural History) 4 (8): 327 - 411." type="journal article" year="1973">Exell (1973)</bibRefCitation>
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.
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<collectingRegion box="[886,920,280,306]" country="Cameroon" name="East" pageId="3" pageNumber="26">Les</collectingRegion>
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||
échantillons précédemment rattachés à cette espèce et récoltés sur le continent appartiennent à
|
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<taxonomicName box="[852,988,342,369]" class="Liliopsida" family="Orchidaceae" genus="Aerangis" kingdom="Plantae" order="Asparagales" pageId="3" pageNumber="26" phylum="Tracheophyta" rank="species" species="bouarensis">
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||
<emphasis box="[852,988,342,369]" italics="true" pageId="3" pageNumber="26">A. bouarensis</emphasis>
|
||
</taxonomicName>
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, qui est ici nouvellement signalé au
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<collectingCountry box="[852,968,374,400]" name="Cameroon" pageId="3" pageNumber="26">Cameroun</collectingCountry>
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(voir ci-dessus).
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</paragraph>
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||
</subSubSection>
|
||
</treatment>
|
||
</document> |