211 lines
17 KiB
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211 lines
17 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.68.9576" ID-PMC="PMC5029126" ID-Pensoft-Pub="1314-2003-68-1" ID-Pensoft-UUID="B430FFA2F469955CFFF18F4AFFFBA319" ID-PubMed="27698570" ID-Zenodo-Dep="142795" ModsDocID="1314-2003-68-1" checkinTime="1470228166826" checkinUser="pensoft" docAuthor="Couvreur, Thomas L. P. & Niangadouma, Raoul" docDate="2016" docId="BB1BD9BE45070E1C34F91AD24B5F31F4" docLanguage="en" docName="PhytoKeys 68: 1-8" docOrigin="PhytoKeys 68" docPubDate="2016-08-02" docSource="http://dx.doi.org/10.3897/phytokeys.68.9576" docTitle="Laccosperma cristalensis Couvreur & Niangadouma 2016, sp. nov." docType="treatment" docVersion="7" id="B430FFA2F469955CFFF18F4AFFFBA319" lastPageNumber="7" masterDocId="B430FFA2F469955CFFF18F4AFFFBA319" masterDocTitle="New species of Uvariopsis (Annonaceae) and Laccosperma (Arecaceae / Palmae) from Monts de Cristal, Gabon" masterLastPageNumber="8" masterPageNumber="1" pageNumber="4" updateTime="1668141755299" 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>New species of Uvariopsis (Annonaceae) and Laccosperma (Arecaceae / Palmae) from Monts de Cristal, Gabon</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>Couvreur, Thomas L. P.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8509-6587</mods:nameIdentifier>
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<mods:affiliation>Institut de Recherche pour le Developpement, UMR-DIADE, BP 64501, F- 34394 Montpellier cedex 5, France & University of Yaounde I, Higher Teacher's Training College, Plant Systematic and Ecology Laboratory, P. O. Box 047, Yaounde, Cameroon & Naturalis Biodiversity Centre, Botany Section, Darwinweg 2, 2333 CR Leiden, The Netherlands</mods:affiliation>
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<mods:nameIdentifier type="email">thomas.couvreur@ird.fr</mods:nameIdentifier>
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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>Niangadouma, Raoul</mods:namePart>
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<mods:affiliation>National Herbarium of Gabon, R. D. 1135, Libreville, Gabon</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>2016</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2016-08-02</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>68</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>8</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.68.9576</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.68.9576</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-68-1</mods:identifier>
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<mods:identifier type="Pensoft-UUID">B430FFA2F469955CFFF18F4AFFFBA319</mods:identifier>
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<mods:identifier type="Zenodo-Dep">142795</mods:identifier>
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</mods:mods>
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<subSection lastPageId="6" lastPageNumber="7" pageId="3" pageNumber="4" type="results">
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<treatment ID-GBIF-Taxon="127877054" LSID="urn:lsid:plazi:treatment:BB1BD9BE45070E1C34F91AD24B5F31F4" httpUri="http://treatment.plazi.org/id/BB1BD9BE45070E1C34F91AD24B5F31F4" lastPageId="6" lastPageNumber="7" pageId="3" pageNumber="4">
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<subSubSection pageId="3" pageNumber="4" type="nomenclature">
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<paragraph pageId="3" pageNumber="4">
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<taxonomicName LSID="BB1BD9BE-4507-0E1C-34F9-1AD24B5F31F4" authority="Couvreur & Niangadouma" authorityName="Couvreur & Niangadouma" authorityYear="2016" class="Liliopsida" family="Arecaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma cristalensis" order="Arecales" pageId="3" pageNumber="4" phylum="Tracheophyta" rank="species" species="cristalensis" status="sp. nov.">Laccosperma cristalensis Couvreur & Niangadouma</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="4">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Laccosperma cristalensis. A Leaf, notice lack of acanthophylls on cirrus B Detail of leaf sheath and ocrea C Detail of sigmoid pinnae. (Couvreur 1142). Photos Thomas L. P. Couvreur." figureDoi="10.3897/phytokeys.68.9576.figure3" httpUri="https://binary.pensoft.net/fig/97884" pageId="3" pageNumber="4">Figure 3</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="materials_examined">
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<paragraph pageId="4" pageNumber="5">
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<pageBreakToken pageId="4" pageNumber="5" start="start">
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<typeStatus>Type</typeStatus>
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</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="4" pageNumber="5">
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<materialsCitation collectingDate="2016-06-13" collectorName="T. L. P. Couvreur" country="GABON" county="Monts de Cristal National Park" latitude="0.60590005" location="Tchimbele" longLatPrecision="1" longitude="10.411799" municipality="Mbe" specimenCount="1" stateProvince="Estuaire" typeStatus="holotype">
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<collectingCountry name="Gabon">GABON</collectingCountry>
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,
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<collectingRegion country="Gabon" name="Estuaire">Estuaire</collectingRegion>
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:
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<collectingCounty>Monts de Cristal National Park</collectingCounty>
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,
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<normalizedToken originalValue="Mbé">
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<collectingMunicipality>Mbe</collectingMunicipality>
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</normalizedToken>
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sector, forest around the antenna in
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<normalizedToken originalValue="Tchimbélé">
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<location LSID="urn:lsid:plazi:treatment:BB1BD9BE45070E1C34F91AD24B5F31F4:AF468A61D1E4247C059525D903568A53" country="GABON" county="Monts de Cristal National Park" latitude="0.60590005" longLatPrecision="1" longitude="10.411799" municipality="Mbe" name="Tchimbele" stateProvince="Estuaire">Tchimbele</location>
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</normalizedToken>
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, ca.
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<quantity metricMagnitude="4" metricUnit="m" metricValue="4.0" unit="km" value="40.0">40 km</quantity>
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from
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<normalizedToken originalValue="Kinguélé">
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<location LSID="urn:lsid:plazi:treatment:BB1BD9BE45070E1C34F91AD24B5F31F4:6162F11F9F30930A40B4753FEAC1CFB5" country="GABON" county="Monts de Cristal National Park" latitude="0.60590005" longLatPrecision="1" longitude="10.411799" municipality="Mbe" name="Kinguele" stateProvince="Estuaire">Kinguele</location>
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</normalizedToken>
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,
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<geoCoordinate degrees="0" direction="north" minutes="36" orientation="latitude" precision="1" seconds="21.240" value="0.60590005">0°36'21.240"N</geoCoordinate>
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;
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<geoCoordinate degrees="10" direction="east" minutes="24" orientation="longitude" precision="1" seconds="42.480" value="10.411799">10°24'42.480"E</geoCoordinate>
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,
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<collectingDate value="2016-06-13">13 Jun 2016</collectingDate>
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,
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<emphasis italics="true" pageId="4" pageNumber="5">
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<collectorName>T.L.P. Couvreur</collectorName>
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1142
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</emphasis>
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(
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<typeStatus>holotype</typeStatus>
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: WAG!; isotypes: LBV!, P!, G!, 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="4" pageNumber="5" type="diagnosis">
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<paragraph pageId="4" pageNumber="5">Diagnosis.</paragraph>
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<paragraph pageId="4" pageNumber="5">
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Resembles
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<taxonomicName class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma korupensis" order="Arecales" pageId="4" pageNumber="5" phylum="Tracheophyta" rank="species" species="korupensis">
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<emphasis italics="true" pageId="4" pageNumber="5">Laccosperma korupensis</emphasis>
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</taxonomicName>
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Sunderland by the lack of acanthophylls on the cirrus. Differs from
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<taxonomicName class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma korupensis" order="Arecales" pageId="4" pageNumber="5" phylum="Tracheophyta" rank="species" species="korupensis">
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<emphasis italics="true" pageId="4" pageNumber="5">Laccosperma korupensis</emphasis>
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</taxonomicName>
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by the fewer pinnae (5-8 vs 10-18) sigmoid in shape (vs lanceolate) lacking spines along the margin (vs with spines) and the short 3-5 mm truncated ocrea (vs 8 cm long and tapering to a point).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="description">
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<paragraph pageId="4" pageNumber="5">Description.</paragraph>
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<paragraph pageId="4" pageNumber="5">
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Clustered, slender palm climbing to 15 m. Stem, circular to oval in cross section, 5-8 mm in diameter; internodes 10-20 cm long. Leaf sheath finely striate, sparsely to moderately armed with fine, green, black tipped, downward and upward pointing spines; sheaths near leaf junction occasionally unarmed; ocrea 3-5 mm long, truncate, round, green, armed with very fine black-tipped spines. Leaves up to 80 cm long; petiole to 3-4 cm long
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<normalizedToken originalValue="×">x</normalizedToken>
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4 mm wide, abaxially rounded, adaxially grooved, armed abaxially with short 2-4 mm long, inequidistant, reflexed black spines; rachis to 30 cm long, angular in cross section, armed as the petiole; cirrus to 45 cm long armed as the rachis, although spines become smaller distally; pinnae, 5-8 on each side of the rachis, inequidistant, usually sub-equidistant proximally and borne in pairs distally, sigmoid, finely acuminate at apex, bluntly cuneate at base, 15-16 cm long, 3-4 cm broad at widest point, prominent transverse veinlets, margins lacking spines; acanthophylls absent. Flowers and fruits unknown.
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</paragraph>
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<caption ID-Zenodo-Dep="983497" doi="10.3897/phytokeys.68.9576.figure3" httpUri="https://binary.pensoft.net/fig/97884" pageId="4" pageNumber="5" start="Figure 3" startId="F3">
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<paragraph pageId="4" pageNumber="5">
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<emphasis bold="true" pageId="4" pageNumber="5">Figure 3.</emphasis>
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<taxonomicName authorityName="Couvreur & Niangadouma" authorityYear="2016" class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma cristalensis" order="Arecales" pageId="4" pageNumber="5" phylum="Tracheophyta" rank="species" species="cristalensis">
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<emphasis italics="true" pageId="4" pageNumber="5">Laccosperma cristalensis</emphasis>
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</taxonomicName>
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.
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<emphasis bold="true" pageId="4" pageNumber="5">A</emphasis>
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Leaf, notice lack of acanthophylls on cirrus
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<emphasis bold="true" pageId="4" pageNumber="5">B</emphasis>
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Detail of leaf sheath and ocrea
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<emphasis bold="true" pageId="4" pageNumber="5">C</emphasis>
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Detail of sigmoid pinnae. (Couvreur 1142). Photos Thomas L.P. Couvreur.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="distribution">
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<paragraph pageId="4" pageNumber="5">Distribution.</paragraph>
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<paragraph pageId="4" pageNumber="5">
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Only known to date from Gabon, from one locality in the Monts de Cristal National Park,
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<normalizedToken originalValue="Mbé">Mbe</normalizedToken>
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sector,
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<normalizedToken originalValue="Tchimbélé">Tchimbele</normalizedToken>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="5" type="habitat">
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<paragraph pageId="4" pageNumber="5">Habitat.</paragraph>
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<paragraph pageId="4" pageNumber="5">This species was found growing in an old secondary forest, on a slope.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="7" pageId="4" pageNumber="5" type="preliminary conservation status">
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<paragraph pageId="4" pageNumber="5">Preliminary conservation status.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="7" pageId="4" pageNumber="5">
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Data deficient. DD.
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<taxonomicName authorityName="Couvreur & Niangadouma" authorityYear="2016" class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma cristalensis" order="Arecales" pageId="4" pageNumber="5" phylum="Tracheophyta" rank="species" species="cristalensis">
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<emphasis italics="true" pageId="4" pageNumber="5">Laccosperma cristalensis</emphasis>
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</taxonomicName>
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is only known by a single collection, thus it is hard to provide an accurate status here. By providing a name to this species, we hope that others will be able to
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<pageBreakToken pageId="5" pageNumber="6" start="start">identify</pageBreakToken>
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potential past collections. The type locality is located in an old secondary forest within the National Park Monts de Cristal,
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<normalizedToken originalValue="Mbé">Mbe</normalizedToken>
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sector, near
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<normalizedToken originalValue="Tchimbélé">Tchimbele</normalizedToken>
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. This forest is, however, close to the telephone antenna area which is regularly maintained
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<pageBreakToken pageId="6" pageNumber="7" start="start">by</pageBreakToken>
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cutting. Important hunting activity was also seen there, suggesting important human activity.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="7" type="etymology">
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<paragraph pageId="6" pageNumber="7">Etymology.</paragraph>
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<paragraph pageId="6" pageNumber="7">Named after the Monts de Cristal National Park in northwestern Gabon, home to an important number of plant species and endemics.</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="7" type="discussion">
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<paragraph pageId="6" pageNumber="7">Discussion.</paragraph>
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<paragraph pageId="6" pageNumber="7">
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<taxonomicName authorityName="Couvreur & Niangadouma" authorityYear="2016" class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma cristalensis" order="Arecales" pageId="6" pageNumber="7" phylum="Tracheophyta" rank="species" species="cristalensis">
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<emphasis italics="true" pageId="6" pageNumber="7">Laccosperma cristalensis</emphasis>
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</taxonomicName>
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closely resembles
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<taxonomicName class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma korupensis" order="Arecales" pageId="6" pageNumber="7" phylum="Tracheophyta" rank="species" species="korupensis">
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<emphasis italics="true" pageId="6" pageNumber="7">Laccosperma korupensis</emphasis>
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</taxonomicName>
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by the absence (or near absence) of acanthophylls on the cirrus (extension of the leaf rachis). These are the only two species of African rattans (subtribe
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<taxonomicName lsidName="" pageId="6" pageNumber="7" rank="subTribe" subTribe="Ancistrophyllinae">Ancistrophyllinae</taxonomicName>
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) to share this character. However,
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<taxonomicName authorityName="Couvreur & Niangadouma" authorityYear="2016" class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma cristalensis" order="Arecales" pageId="6" pageNumber="7" phylum="Tracheophyta" rank="species" species="cristalensis">
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<emphasis italics="true" pageId="6" pageNumber="7">Laccosperma cristalensis</emphasis>
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</taxonomicName>
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is easily distinguished from
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<taxonomicName class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma korupensis" order="Arecales" pageId="6" pageNumber="7" phylum="Tracheophyta" rank="species" species="korupensis">
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<emphasis italics="true" pageId="6" pageNumber="7">Laccosperma korupensis</emphasis>
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</taxonomicName>
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by having fewer pinnae (5-8 versus 10-18) which are sigmoid versus lanceolate, lacking spines along the margin versus presence of spines along the margin and an ocrea that is 3-5 mm long and truncated versus 7-10 cm long and tapering to a point (
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<bibRefCitation author="Sunderland, TCH" journalOrPublisher="Phytotaxa" pageId="7" pageNumber="8" pagination="1 - 76" publicationUrl="10.11646/phytotaxa.51.1.1" refId="B13" refString="Sunderland, TCH, 2012. A taxonomic revision of the rattans of Africa (Arecaceae: Calamoideae). Phytotaxa 51: 1 - 76, DOI: 10.11646/phytotaxa.51.1.1" title="A taxonomic revision of the rattans of Africa (Arecaceae: Calamoideae)." url="10.11646/phytotaxa.51.1.1" volume="51" year="2012">Sunderland 2012</bibRefCitation>
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). To date none of these species have been collected flowering or fruiting, however, the vegetative characters alone suffice to clearly distinguish them. The total number of species in
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<taxonomicName class="Liliopsida" family="Annonaceae" genus="Laccosperma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Laccosperma" order="Arecales" pageId="6" pageNumber="7" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="6" pageNumber="7">Laccosperma</emphasis>
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</taxonomicName>
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is now 7, although new species are yet to be described from West Africa (
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<bibRefCitation author="Faye, A" journalOrPublisher="PhytoKeys" pageId="7" pageNumber="8" publicationUrl="10.1111/boj.12454" refId="B5" refString="Faye, A, Pintaud, J-C, Baker, WJ, Vigouroux, Y, Sonke, B, Couvreur, TLP, 2016. Phylogenetics and diversification history of African rattans (Calamoideae, Ancistrophyllinae). In: Botanical Journal of the Linnean Society., DOI: 10.1111/boj.12454" title="Phylogenetics and diversification history of African rattans (Calamoideae, Ancistrophyllinae)." url="10.1111/boj.12454" volumeTitle="Botanical Journal of the Linnean Society." year="2016">Faye et al. 2016</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</subSection>
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</document> |