242 lines
18 KiB
XML
242 lines
18 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.17.3114" ID-PMC="PMC3519353" ID-Pensoft-Pub="1314-2003-17-41" ID-Pensoft-UUID="601CFFEEFFD1B81030184829FFAAFFA8" ID-PubMed="23233817" ID-Zenodo-Dep="576140" ModsDocID="1314-2003-17-41" checkinTime="1451251972908" checkinUser="pensoft" docAuthor="Sosef, Marc S. M. & Dauby, Gilles" docDate="2012" docId="30D1AFC09DFEB67888CE405A76EB4639" docLanguage="en" docName="PhytoKeys 17: 41-62" docOrigin="PhytoKeys 17" docPubDate="2012-10-24" docSource="http://dx.doi.org/10.3897/phytokeys.17.3114" docTitle="Garcinia obliqua Sosef & Dauby 2012" docType="treatment" docVersion="6" id="601CFFEEFFD1B81030184829FFAAFFA8" lastPageNumber="46" masterDocId="601CFFEEFFD1B81030184829FFAAFFA8" masterDocTitle="Contribution to the taxonomy of Garcinia (Clusiaceae) in Africa, including two new species from Gabon and a key to the Lower Guinean species" masterLastPageNumber="62" masterPageNumber="41" pageNumber="45" updateTime="1668140254884" 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>Contribution to the taxonomy of Garcinia (Clusiaceae) in Africa, including two new species from Gabon and a key to the Lower Guinean species</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Sosef, Marc S. M.</mods:namePart>
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<mods:affiliation>Naturalis Biodiversity Center (section NHN), Wageningen University, Generaal Foulkesweg 37, 6703 BL Wageningen, The Netherlands & Biosystematics group, Wageningen University, The Netherlands</mods:affiliation>
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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>Dauby, Gilles</mods:namePart>
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<mods:affiliation>Laboratoire d'Evolution Biologique et Ecologie, Faculte des Sciences, Universite Libre de Bruxelles, CP 160 / 12, Av. F. D. Roosevelt 50, 1050 Bruxelles, Belgique</mods:affiliation>
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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>2012</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2012-10-24</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>17</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>41</mods:start>
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<mods:end>62</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.17.3114</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.17.3114</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-17-41</mods:identifier>
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<mods:identifier type="Pensoft-UUID">601CFFEEFFD1B81030184829FFAAFFA8</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576140</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152024410" LSID="urn:lsid:plazi:treatment:30D1AFC09DFEB67888CE405A76EB4639" httpUri="http://treatment.plazi.org/id/30D1AFC09DFEB67888CE405A76EB4639" lastPageId="6" lastPageNumber="46" pageId="4" pageNumber="45">
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<subSubSection pageId="4" pageNumber="45" type="nomenclature">
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<paragraph pageId="4" pageNumber="45">
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<taxonomicName LSID="30D1AFC0-9DFE-B678-88CE-405A76EB4639" authority="Sosef & Dauby" authorityName="Sosef & Dauby" authorityYear="2012" class="Dicotyledoneae" family="Clusiaceae" genus="Garcinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Garcinia obliqua" order="Guttiferales" pageId="4" pageNumber="45" phylum="Angiospermae" rank="species" species="obliqua">Garcinia obliqua Sosef & Dauby</taxonomicName>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Garcinia obliqua: A Flowering twig B Leaf from below C Idem, detail D Male flower E Idem, 1 sepal and 2 petals removed F Fruit. (A: Breteler et al. 8993 B, C, F: Dauby et al. 1570; D, E: Breteler et al. 8738). Drawing by Hans de Vries, NCB Naturalis (section NHN) ©." httpUri="https://binary.pensoft.net/fig/10176" pageId="4" pageNumber="45">Fig. 1</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="45" type="diagnosis">
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<paragraph pageId="4" pageNumber="45">Diagnosis.</paragraph>
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<paragraph pageId="4" pageNumber="45">
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Similar to
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<taxonomicName class="Dicotyledoneae" family="Clusiaceae" genus="Garcinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Guttiferales" pageId="4" pageNumber="45" phylum="Angiospermae" rank="species" species="smeathmannii">
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<emphasis italics="true" pageId="4" pageNumber="45">Garcinia smeathmannii</emphasis>
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</taxonomicName>
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but leaves with 6-9 pairs of lateral veins, tertiary venation only slightly distinct above, petiole almost smooth, and fruits asymmetric with a coriaceous and ribbed skin.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="45" type="type">
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<paragraph pageId="4" pageNumber="45">Type.</paragraph>
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<paragraph pageId="4" pageNumber="45">
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GABON:
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<normalizedToken originalValue="Ogooué-Ivindo">Ogooue-Ivindo</normalizedToken>
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, near Djidji, 5-10 km West of
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<normalizedToken originalValue="Koumémayong">Koumemayong</normalizedToken>
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,
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<geoCoordinate degrees="0" direction="north" minutes="15" orientation="latitude" precision="925" value="0.25">0°15'N</geoCoordinate>
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,
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<geoCoordinate degrees="11" direction="east" minutes="50" orientation="longitude" precision="925" value="11.833333">11°50'E</geoCoordinate>
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(DMS), 25-4-1988, Breteler 8993 (holotype WAG!; isotype BR!, K!, LBV!, MO!, P!).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="46" pageId="4" pageNumber="45" type="description">
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<paragraph pageId="4" pageNumber="45">Description.</paragraph>
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<paragraph lastPageId="5" lastPageNumber="46" pageId="4" pageNumber="45">
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Dioecious tree; bole up to 35 cm dbh; twigs round to slightly angular in cross section; latex transparent or yellow.
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<emphasis italics="true" pageId="4" pageNumber="45">Leaves</emphasis>
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opposite; petiole (0.8-)1-1.5(-2) cm long, smooth or slightly transversely wrinkled, with a distinct foveola of up to 3
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<pageBreakToken pageId="5" pageNumber="46" start="start">mm</pageBreakToken>
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long; blade elliptic to lanceolate, (8-)9-17(-18)
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<normalizedToken originalValue="×">x</normalizedToken>
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2.5-6 cm, attenuate at base, acuminate at apex, glabrous; lateral veins 6-9 pairs, distinct below, slightly distinct above, disappearing towards the margin; tertiary venation visible to distinct below, slightly distinct above; resin canals visible on the lower surface, black and subparallel to the midrib.
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<emphasis italics="true" pageId="5" pageNumber="46">Inflorescence</emphasis>
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axillary, with fascicles of flowers on swellings in the axils of twigs.
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<emphasis italics="true" pageId="5" pageNumber="46">Flowers</emphasis>
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4-merous, unisexual; pedicel 3-6 mm; external sepals about 2.5 mm long, internal ones about 3 mm, greenish; petals suborbicular, about 4 mm long.
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<emphasis italics="true" pageId="5" pageNumber="46">Male flower</emphasis>
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: staminal bundles tree-like, with 10-19 irregularly positioned stamens per bundle, filaments free at the apex, anthers small, subglobose; pistillode present.
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<emphasis italics="true" pageId="5" pageNumber="46">Female flower</emphasis>
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not observed.
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<emphasis italics="true" pageId="5" pageNumber="46">Fruit</emphasis>
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on a 12 mm long pedicel (only 1 fruit with pedicel observed), asymmetric, oblique, probably because of aborted ovules, circular to broadly ovate in cross section, 3-3.5
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<normalizedToken originalValue="×">x</normalizedToken>
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1.8-2 cm;
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<emphasis bold="true" pageId="5" pageNumber="46">e</emphasis>
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xocarp strongly furrowed and coriaceous and green with blue reflection in dry condition.
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<emphasis italics="true" pageId="5" pageNumber="46">Seed</emphasis>
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1, obliquely ellipsoid, 2-3
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<normalizedToken originalValue="×">x</normalizedToken>
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1.5-2 cm, black.
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</paragraph>
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<caption httpUri="https://binary.pensoft.net/fig/10176" pageId="5" pageNumber="46" start="Figure 1" startId="F1">
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<paragraph pageId="5" pageNumber="46">
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<emphasis bold="true" pageId="5" pageNumber="46">Figure 1.</emphasis>
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<taxonomicName authorityName="Sosef & Dauby" authorityYear="2012" class="Dicotyledoneae" family="Clusiaceae" genus="Garcinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Guttiferales" pageId="5" pageNumber="46" phylum="Angiospermae" rank="species" species="obliqua">
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<emphasis italics="true" pageId="5" pageNumber="46">Garcinia obliqua</emphasis>
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</taxonomicName>
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:
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<emphasis bold="true" pageId="5" pageNumber="46">A</emphasis>
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Flowering twig
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<emphasis bold="true" pageId="5" pageNumber="46">B</emphasis>
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Leaf from below
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<emphasis bold="true" pageId="5" pageNumber="46">C</emphasis>
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Idem, detail
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<emphasis bold="true" pageId="5" pageNumber="46">D</emphasis>
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Male flower
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<emphasis bold="true" pageId="5" pageNumber="46">E</emphasis>
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Idem, 1 sepal and 2 petals removed
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<emphasis bold="true" pageId="5" pageNumber="46">F</emphasis>
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Fruit. (A: Breteler et al. 8993
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<emphasis bold="true" pageId="5" pageNumber="46">B, C, F</emphasis>
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: Dauby et al. 1570;
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<emphasis bold="true" pageId="5" pageNumber="46">D, E</emphasis>
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: Breteler et al. 8738). Drawing by Hans de Vries, NCB Naturalis (section NHN) ©.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="46" type="distribution">
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<paragraph pageId="5" pageNumber="46">Distribution.</paragraph>
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<paragraph pageId="5" pageNumber="46">
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Endemic to central Gabon, known only from the
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<normalizedToken originalValue="Ogooué-Ivindo">Ogooue-Ivindo</normalizedToken>
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and
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<normalizedToken originalValue="Ngounié">Ngounie</normalizedToken>
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provinces (see
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Distribution of the two new species endemic to Gabon: (a) Garcinia obliqua, (b) Garcinia gabonensis." httpUri="https://binary.pensoft.net/fig/10178" pageId="5" pageNumber="46">Figure 3a</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="46" type="habitat and ecology">
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<paragraph pageId="5" pageNumber="46">Habitat and ecology.</paragraph>
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<paragraph pageId="5" pageNumber="46">Primary terra firme rainforest; at ca. 450-800 m altitude. Flowering in April, fruits observed in February.</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="46" type="conservation status">
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<paragraph pageId="5" pageNumber="46">Conservation status.</paragraph>
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<paragraph pageId="5" pageNumber="46">
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<taxonomicName authorityName="Sosef & Dauby" authorityYear="2012" class="Dicotyledoneae" family="Clusiaceae" genus="Garcinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Guttiferales" pageId="5" pageNumber="46" phylum="Angiospermae" rank="species" species="obliqua">
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<emphasis italics="true" pageId="5" pageNumber="46">Garcinia obliqua</emphasis>
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</taxonomicName>
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is currently known from nine collections and six locations. Estimates of its extent of occurrence and area of occupancy are respectively ca. 9488 km2 and 80 km2. One collection (Dauby et al. 1650) corresponded to a dead individual along a forestry road and all locations are currently found within logging concessions. Hence, we assume the extent of occurrence, area of occupancy, quality of habitat and number of sub-populations will decrease in the near future. We therefore assign a preliminary status of Vulnerable (Vu B1ab(i,ii,iii,iv,v)+B2ab(i,ii,iii,iv,v)).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="46" type="notes">
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<paragraph pageId="5" pageNumber="46">Notes.</paragraph>
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<paragraph pageId="5" pageNumber="46">
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The shape of the staminal bundles and the anthers, as well as the distinct foveola point to a relationship with
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<taxonomicName class="Dicotyledoneae" family="Clusiaceae" genus="Garcinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Guttiferales" pageId="5" pageNumber="46" phylum="Angiospermae" rank="species" species="smeathmannii">
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<emphasis italics="true" pageId="5" pageNumber="46">Garcinia smeathmannii</emphasis>
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</taxonomicName>
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and
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<taxonomicName class="Dicotyledoneae" family="Clusiaceae" genus="Garcinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Guttiferales" pageId="5" pageNumber="46" phylum="Angiospermae" rank="species" species="ovalifolia">
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<emphasis italics="true" pageId="5" pageNumber="46">Garcinia ovalifolia</emphasis>
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</taxonomicName>
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, both belonging to the section
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<taxonomicName genus="Rheediopsis" lsidName="" pageId="5" pageNumber="46" rank="genus">
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<emphasis italics="true" pageId="5" pageNumber="46">Rheediopsis</emphasis>
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</taxonomicName>
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Pierre (Jones, 1980). On the other hand, preliminary molecular data obtained by the second author suggest that
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<taxonomicName authorityName="Sosef & Dauby" authorityYear="2012" class="Dicotyledoneae" family="Clusiaceae" genus="Garcinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Guttiferales" pageId="5" pageNumber="46" phylum="Angiospermae" rank="species" species="obliqua">
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<emphasis italics="true" pageId="5" pageNumber="46">Garcinia obliqua</emphasis>
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</taxonomicName>
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is not related to these species. Therefore, the results of an upcoming molecular study are awaited before a firm statement about the sectional position can be made.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="47" pageId="5" pageNumber="46" type="additional specimens examined">
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<paragraph pageId="5" pageNumber="46">Additional specimens examined</paragraph>
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<paragraph lastPageId="6" lastPageNumber="47" pageId="5" pageNumber="46">
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(all from Gabon). CFAD de Rimbunan Hijau, au Sud-Ouest du Parc National de la
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<normalizedToken originalValue="Lopé">Lope</normalizedToken>
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,
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<geoCoordinate degrees="0.64" direction="south" orientation="latitude" precision="555" value="-0.64">0.64°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.16" direction="east" orientation="longitude" precision="555" value="11.16">11.16°E</geoCoordinate>
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(DD), 2/2/2009 (fr.), Dauby et al. 1570 (LBV, MO, BRLU). CFAD de Rimbunan Hijau, au Sud-Ouest du Parc National de la
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<normalizedToken originalValue="Lopé">Lope</normalizedToken>
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,
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<geoCoordinate degrees="0.7" direction="south" orientation="latitude" precision="5555" value="-0.7">0.7°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.23" direction="east" orientation="longitude" precision="555" value="11.23">11.23°E</geoCoordinate>
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(DD), 27/2/2009 (fr.), Dauby et al. 1643 (BRLU). CFAD de Rimbunan Hijau, au Sud-Ouest du Parc National de la
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<normalizedToken originalValue="Lopé">Lope</normalizedToken>
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,
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<geoCoordinate degrees="0.7" direction="south" orientation="latitude" precision="5555" value="-0.7">0.7°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.23" direction="east" orientation="longitude" precision="555" value="11.23">11.23°E</geoCoordinate>
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(DD), 28/2/2009 (ster.), Dauby et al. 1650 (BRLU). near Djidji, 5-10 km W. of
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<normalizedToken originalValue="Koumémayong">Koumemayong</normalizedToken>
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,
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<geoCoordinate degrees="0" direction="north" minutes="15" orientation="latitude" precision="925" value="0.25">0°15'N</geoCoordinate>
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,
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<geoCoordinate degrees="11" direction="east" minutes="50" orientation="longitude" precision="925" value="11.833333">11°50'E</geoCoordinate>
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(DMS), 15/4/1988 (fl.), Breteler et al. 8738 (WAG). Est du Parc National de Waka,
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<normalizedToken originalValue="à">a</normalizedToken>
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plus ou moins 5 km au Sud de la
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<normalizedToken originalValue="rivière">riviere</normalizedToken>
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Mayi,
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<geoCoordinate degrees="1.23" direction="south" orientation="latitude" precision="555" value="-1.23">1.23°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.28" direction="east" orientation="longitude" precision="555" value="11.28">11.28°E</geoCoordinate>
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(DD), 4/6/2008 (ster.), Dauby et al. 677 (BRLU). Est du Parc National de Waka,
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<normalizedToken originalValue="à">a</normalizedToken>
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plus ou moins 5 km au Sud de la
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<normalizedToken originalValue="rivière">riviere</normalizedToken>
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Mayi,
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<geoCoordinate degrees="1.23" direction="south" orientation="latitude" precision="555" value="-1.23">1.23°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.28" direction="east" orientation="longitude" precision="555" value="11.28">11.28°E</geoCoordinate>
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(DD), 4/6/2008 (ster.), Dauby et al. 666 (BRLU). Bouvala hills,
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<geoCoordinate degrees="1.62" direction="south" orientation="latitude" precision="555" value="-1.62">1.62°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.75" direction="east" orientation="longitude" precision="555" value="11.75">11.75°E</geoCoordinate>
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(DD), 8/10/2007 (ster.), MBG transect (Leal et al.) 1105 (BRLU). Bouvala hills,
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<geoCoordinate degrees="1.63" direction="south" orientation="latitude" precision="555" value="-1.63">1.63°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.78" direction="east" orientation="longitude" precision="555" value="11.78">11.78°E</geoCoordinate>
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(DD)
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<pageBreakToken pageId="6" pageNumber="47" start="start">,</pageBreakToken>
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12/10/2007 (ster.), MBG transect (Leal et al.) 1106 (BRLU). Village Eghuba, nord-ouest du Parc National de Waka,
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<geoCoordinate degrees="1.03" direction="south" orientation="latitude" precision="555" value="-1.03">1.03°S</geoCoordinate>
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,
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<geoCoordinate degrees="11.14" direction="east" orientation="longitude" precision="555" value="11.14">11.14°E</geoCoordinate>
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(DD), 12/5/2008 (ster.), Ngombou Mamadou & Ndjombe 226 (LBV, MO).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |