355 lines
27 KiB
XML
355 lines
27 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.128.34640" ID-GBIF-Dataset="efb8fe7a-3432-4338-86d7-0a305ebac47d" ID-PMC="PMC6667394" ID-Pensoft-Pub="1314-2003-128-39" ID-Pensoft-UUID="FFB67D78FF8F86301B30A059CE2BEC03" ID-PubMed="31379455" ID-Zenodo-Dep="3355839" ModsDocID="1314-2003-128-39" checkinTime="1563957117786" checkinUser="pensoft" docAuthor="Kenfack, David & Nguema, Diosdado Ekomo" docDate="2019" docId="A035ECFA42625F5E88977EF9784033AE" docLanguage="en" docName="PhytoKeys 128: 39-46" docOrigin="PhytoKeys 128" docPubDate="2019-07-23" docSource="http://dx.doi.org/10.3897/phytokeys.128.34640" docTitle="Rhaptopetalum rabiense Kenfack & Nguema 2019, sp. nov." docType="treatment" docVersion="9" id="FFB67D78FF8F86301B30A059CE2BEC03" lastPageNumber="44" masterDocId="FFB67D78FF8F86301B30A059CE2BEC03" masterDocTitle="A new species of Rhaptopetalum (Lecythidaceae) from south-western Gabon" masterLastPageNumber="46" masterPageNumber="39" pageNumber="41" updateTime="1668139411092" updateUser="ExternalLinkService">
|
||
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo>
|
||
<mods:title>A new species of Rhaptopetalum (Lecythidaceae) from south-western Gabon</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Kenfack, David</mods:namePart>
|
||
<mods:affiliation>Forest Global Earth Observatory (ForestGEO), Smithsonian Tropical Research Institute, Apartado Postal 0843 - 03092, Panama, Republica de Panama & Physical address: Department of Botany, National Museum of Natural History - MRC 166, P. O. Box 37012, Washington, DC 20013 - 7012, USA</mods:affiliation>
|
||
<mods:nameIdentifier type="email">kenfackd@si.edu</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Nguema, Diosdado Ekomo</mods:namePart>
|
||
<mods:affiliation>Gabon Biodiversity Program, Centre for Conservation and Sustainability, Smithsonian Conservation Biology Institute, BP 48, Gamba, Gabon</mods:affiliation>
|
||
</mods:name>
|
||
<mods:typeOfResource>text</mods:typeOfResource>
|
||
<mods:relatedItem type="host">
|
||
<mods:titleInfo>
|
||
<mods:title>PhytoKeys</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part>
|
||
<mods:date>2019</mods:date>
|
||
<mods:detail type="pubDate">
|
||
<mods:number>2019-07-23</mods:number>
|
||
</mods:detail>
|
||
<mods:detail type="volume">
|
||
<mods:number>128</mods:number>
|
||
</mods:detail>
|
||
<mods:extent unit="page">
|
||
<mods:start>39</mods:start>
|
||
<mods:end>46</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:location>
|
||
<mods:url>http://dx.doi.org/10.3897/phytokeys.128.34640</mods:url>
|
||
</mods:location>
|
||
<mods:classification>journal article</mods:classification>
|
||
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.128.34640</mods:identifier>
|
||
<mods:identifier type="Pensoft-Pub">1314-2003-128-39</mods:identifier>
|
||
<mods:identifier type="Pensoft-UUID">FFB67D78FF8F86301B30A059CE2BEC03</mods:identifier>
|
||
<mods:identifier type="Zenodo-Dep">3355839</mods:identifier>
|
||
</mods:mods>
|
||
<treatment ID-GBIF-Taxon="158852590" LSID="urn:lsid:plazi:treatment:A035ECFA42625F5E88977EF9784033AE" httpUri="http://treatment.plazi.org/id/A035ECFA42625F5E88977EF9784033AE" lastPageId="5" lastPageNumber="44" pageId="2" pageNumber="41">
|
||
<subSubSection pageId="2" pageNumber="41" type="nomenclature">
|
||
<paragraph pageId="2" pageNumber="41">
|
||
<taxonomicName LSID="A035ECFA-4262-5F5E-8897-7EF9784033AE" authority="Kenfack & Nguema" authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="2" pageNumber="41" phylum="Tracheophyta" rank="species" species="rabiense" status="sp. nov.">Rhaptopetalum rabiense Kenfack & Nguema</taxonomicName>
|
||
<taxonomicNameLabel pageId="2" pageNumber="41">sp. nov.</taxonomicNameLabel>
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Rhaptopetalum rabiense A flowering twig B close-up of the lower surface showing the indumentum and the punctate lamina C detail of inflorescence and stem showing lenticels D flower bud E opened flower F flower with pseudocorolla and stamens removed showing superior ovary G longitudinal section of F showing pendulous ovules H fruiting branch." figureDoi="10.3897/phytokeys.128.34640.figure1" httpUri="https://binary.pensoft.net/fig/319479" pageId="2" pageNumber="41">Figs 1</figureCitation>
|
||
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Rhaptopetalum rabiense A flowering branch B lateral view of the flower C flower view from above showing the poricidal anthers and the gynoecium D fruiting branch. Photographs by Diosdado Nguema." figureDoi="10.3897/phytokeys.128.34640.figure2" httpUri="https://binary.pensoft.net/fig/319480" pageId="2" pageNumber="41">, 2</figureCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="2" pageNumber="41" type="materials_examined">
|
||
<paragraph pageId="2" pageNumber="41">
|
||
<typeStatus>Type</typeStatus>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="2" pageNumber="41">
|
||
<materialsCitation collectingDate="2014-08-27" country="GABON" elevation="23" latitude="-1.9271028" location="Ogooue Maritime" longLatPrecision="1" longitude="9.880739" municipality="Rabi Forest" specimenCount="1" typeStatus="holotype">
|
||
<collectingCountry name="Gabon">GABON</collectingCountry>
|
||
.
|
||
<location LSID="urn:lsid:plazi:treatment:A035ECFA42625F5E88977EF9784033AE:0BF47B8E636F7B9A2964081DEDF6C19C" country="GABON" latitude="-1.9271028" longLatPrecision="1" longitude="9.880739" municipality="Rabi Forest" name="Ogooue Maritime">
|
||
<normalizedToken originalValue="Ogooué">Ogooue</normalizedToken>
|
||
Maritime
|
||
</location>
|
||
, 25-ha
|
||
<collectingMunicipality>Rabi Forest</collectingMunicipality>
|
||
plot,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="37.57" value="-1.9271028">1°55'37.57"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="50.66" value="9.880739">9°52'50.66"E</geoCoordinate>
|
||
,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="2.3" unit="m" value="23.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="2.3" unit="m" value="23.0">23 m</elevation>
|
||
</quantity>
|
||
alt.,
|
||
<collectingDate value="2014-08-27">27 Aug 2014</collectingDate>
|
||
(fl),
|
||
<emphasis italics="true" pageId="2" pageNumber="41">Nguema et al. 2825a</emphasis>
|
||
(
|
||
<typeStatus>holotype</typeStatus>
|
||
: LBV, isotypes: BR, MO,
|
||
</materialsCitation>
|
||
<collectingCountry name="United States of America">US</collectingCountry>
|
||
, K, P)
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="2" pageNumber="41" type="diagnosis">
|
||
<paragraph pageId="2" pageNumber="41">Diagnosis.</paragraph>
|
||
<paragraph pageId="2" pageNumber="41">
|
||
<taxonomicName authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="2" pageNumber="41" phylum="Tracheophyta" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="2" pageNumber="41">Rhaptopetalum rabiense</emphasis>
|
||
</taxonomicName>
|
||
is similar to
|
||
<taxonomicName lsidName="R. belingense" pageId="2" pageNumber="41" rank="species" species="belingense">
|
||
<emphasis italics="true" pageId="2" pageNumber="41">R. belingense</emphasis>
|
||
</taxonomicName>
|
||
by its dome-shaped ovary, its entire calyx margin, its apex placentation and smooth fruits, but differs by its pubescent (vs. glabrous) young branches, its longer pedicel (5-7 mm vs. 3 mm) articulated 1 mm below the calyx (vs. articulated directly below the calyx), and its uni-ovulated loci (vs. multi-ovulated) (Table
|
||
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Comparison of discriminant characters amongst Rhaptopetalum rabiense, R. evrardii and R. belingense." httpUri="http://table.plazi.org/id/BBBA69B7B5B714A541C97F19C23884E9" pageId="2" pageNumber="41" tableUuid="BBBA69B7B5B714A541C97F19C23884E9">1</tableCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="4" lastPageNumber="43" pageId="2" pageNumber="41" type="description">
|
||
<paragraph pageId="2" pageNumber="41">Description.</paragraph>
|
||
<paragraph lastPageId="4" lastPageNumber="43" pageId="2" pageNumber="41">
|
||
<emphasis italics="true" pageId="2" pageNumber="41">Tree</emphasis>
|
||
4-6 m tall, bole cylindrical, to 20 cm diameter at 1.3 m aboveground; bark pale brown, slash fibrous, pink in the outer part, yellowish in the inner part; young branches slender, rusty brown, densely puberulous, conspicuously lenticellate.
|
||
<emphasis italics="true" pageId="2" pageNumber="41">Leaves</emphasis>
|
||
distichous; petiole 2-4(6)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2 mm, densely puberulous; lamina obovate to elliptic, coriaceous, abundantly punctate, 8-18(21)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(2.5)5-9 cm, acuminate to broadly acute at apex, slightly unequal and rounded at base; margin entire; midrib conspicuous and flattened above, prominent and minutely puberulous beneath; secondary veins 8-11 pairs, plane above, prominent beneath, arching and joined towards the margin of the lamina.
|
||
<emphasis italics="true" pageId="2" pageNumber="41">Inflorescence</emphasis>
|
||
ramiflorous, axillary and supra-axillary, fasciculate, with 1-8 flowers.
|
||
<emphasis italics="true" pageId="2" pageNumber="41">Bracts</emphasis>
|
||
ovate, about 1 mm long.
|
||
<emphasis italics="true" pageId="2" pageNumber="41">Flower bud</emphasis>
|
||
ovoid to globose-oblong, rounded at apex, (2.5)3-4 mm long, pink to red directly above the calyx rim, light pink to whitish towards the apex. Pedicel in flower buds (2.5)3-5 mm, but generally 5-7 mm long in opened flowers, yellow-green, minutely puberulous to glabrescent, articulate directly beneath calyx. Calyx cupuliform, yellow-green, glabrescent to pu
|
||
<pageBreakToken pageId="3" pageNumber="42" start="start">berulous</pageBreakToken>
|
||
, the margin entire, 2-2.5 mm in diameter on the rim, receptacle about 1 mm long. Pseudocorolla fleshy, splitting into (3)4 lobes 2.5-4 mm long oblong to ovate lobes.
|
||
<emphasis italics="true" pageId="3" pageNumber="42">Stamens</emphasis>
|
||
35(37), the filament light pink to whitish, about 0.3 mm, the poricidal anthers bright yellow, slightly arched towards the centre of the flower, 2-2.5 mm long;
|
||
<pageBreakToken pageId="4" pageNumber="43" start="start">ovary</pageBreakToken>
|
||
superior, globose, about 1 mm high and 1.5 mm diameter, 3-4-locular, each locule with 1 or 2 axile pendulous ovules. Style 3-4.5 mm long.
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Fruit</emphasis>
|
||
a globose capsule, green, smooth, 15-20 mm diam., fruiting pedicel 5-7 mm long, seeds 8-12
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
5-8 mm.
|
||
</paragraph>
|
||
<caption ID-Zenodo-Dep="3487831" doi="10.3897/phytokeys.128.34640.figure1" httpUri="https://binary.pensoft.net/fig/319479" pageId="4" pageNumber="43" start="Figure 1" startId="F1">
|
||
<paragraph pageId="4" pageNumber="43">
|
||
<emphasis bold="true" pageId="4" pageNumber="43">Figure 1.</emphasis>
|
||
<taxonomicName authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="4" pageNumber="43" phylum="Tracheophyta" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Rhaptopetalum rabiense</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" pageId="4" pageNumber="43">A</emphasis>
|
||
flowering twig
|
||
<emphasis bold="true" pageId="4" pageNumber="43">B</emphasis>
|
||
close-up of the lower surface showing the indumentum and the punctate lamina
|
||
<emphasis bold="true" pageId="4" pageNumber="43">C</emphasis>
|
||
detail of inflorescence and stem showing lenticels
|
||
<emphasis bold="true" pageId="4" pageNumber="43">D</emphasis>
|
||
flower bud
|
||
<emphasis bold="true" pageId="4" pageNumber="43">E</emphasis>
|
||
opened flower
|
||
<emphasis bold="true" pageId="4" pageNumber="43">F</emphasis>
|
||
flower with pseudocorolla and stamens removed showing superior ovary
|
||
<emphasis bold="true" pageId="4" pageNumber="43">G</emphasis>
|
||
longitudinal section of
|
||
<emphasis bold="true" pageId="4" pageNumber="43">F</emphasis>
|
||
showing pendulous ovules
|
||
<emphasis bold="true" pageId="4" pageNumber="43">H</emphasis>
|
||
fruiting branch.
|
||
</paragraph>
|
||
</caption>
|
||
<caption ID-Zenodo-Dep="3487833" doi="10.3897/phytokeys.128.34640.figure2" httpUri="https://binary.pensoft.net/fig/319480" pageId="4" pageNumber="43" start="Figure 2" startId="F2">
|
||
<paragraph pageId="4" pageNumber="43">
|
||
<emphasis bold="true" pageId="4" pageNumber="43">Figure 2.</emphasis>
|
||
<taxonomicName authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="4" pageNumber="43" phylum="Tracheophyta" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Rhaptopetalum rabiense</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" pageId="4" pageNumber="43">A</emphasis>
|
||
flowering branch
|
||
<emphasis bold="true" pageId="4" pageNumber="43">B</emphasis>
|
||
lateral view of the flower
|
||
<emphasis bold="true" pageId="4" pageNumber="43">C</emphasis>
|
||
flower view from above showing the poricidal anthers and the gynoecium
|
||
<emphasis bold="true" pageId="4" pageNumber="43">D</emphasis>
|
||
fruiting branch. Photographs by Diosdado Nguema.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="4" pageNumber="43" type="phenology">
|
||
<paragraph pageId="4" pageNumber="43">Phenology.</paragraph>
|
||
<paragraph pageId="4" pageNumber="43">Flowering August-October, Fruiting September-December.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="4" pageNumber="43" type="distribution">
|
||
<paragraph pageId="4" pageNumber="43">Geographic distribution.</paragraph>
|
||
<paragraph pageId="4" pageNumber="43">
|
||
<taxonomicName authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="4" pageNumber="43" phylum="Tracheophyta" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Rhaptopetalum rabiense</emphasis>
|
||
</taxonomicName>
|
||
is only known from the type locality, the Rabi forest (Figure
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Type locations of Rhaptopetalum rabiense and the closely related species R. belingense in Gabon." figureDoi="10.3897/phytokeys.128.34640.figure3" httpUri="https://binary.pensoft.net/fig/319481" pageId="4" pageNumber="43">3</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption ID-Zenodo-Dep="3487835" doi="10.3897/phytokeys.128.34640.figure3" httpUri="https://binary.pensoft.net/fig/319481" pageId="4" pageNumber="43" start="Figure 3" startId="F3">
|
||
<paragraph pageId="4" pageNumber="43">
|
||
<emphasis bold="true" pageId="4" pageNumber="43">Figure 3.</emphasis>
|
||
Type locations of
|
||
<taxonomicName authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="4" pageNumber="43" phylum="Tracheophyta" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Rhaptopetalum rabiense</emphasis>
|
||
</taxonomicName>
|
||
and the closely related species
|
||
<taxonomicName lsidName="R. belingense" pageId="4" pageNumber="43" rank="species" species="belingense">
|
||
<emphasis italics="true" pageId="4" pageNumber="43">R. belingense</emphasis>
|
||
</taxonomicName>
|
||
in Gabon.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="4" pageNumber="43" type="habitat">
|
||
<paragraph pageId="4" pageNumber="43">Habitat.</paragraph>
|
||
<paragraph pageId="4" pageNumber="43">
|
||
<taxonomicName authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="4" pageNumber="43" phylum="Tracheophyta" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Rhaptopetalum rabiense</emphasis>
|
||
</taxonomicName>
|
||
grows in old growth forest, on both terra firme dry and wet depressions, with elevation 20-50 m.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="5" lastPageNumber="44" pageId="4" pageNumber="43" type="materials_examined">
|
||
<paragraph pageId="4" pageNumber="43">Additional specimens examined.</paragraph>
|
||
<paragraph lastPageId="5" lastPageNumber="44" pageId="4" pageNumber="43">
|
||
<materialsCitation collectingDate="2013-08-21" collectingDateMax="2014-12-02" collectingDateMin="2013-08-21" country="GABON" elevation="24" latitude="-1.9267889" location="Ogooue Maritime" longLatPrecision="1" longitude="9.879614" municipality="Rabi" specimenCount="1">
|
||
<collectingCountry name="Gabon">GABON</collectingCountry>
|
||
.
|
||
<location LSID="urn:lsid:plazi:treatment:A035ECFA42625F5E88977EF9784033AE:6191DCE87B4DEA5F665254D3992459D6" country="GABON" latitude="-1.9267889" longLatPrecision="1" longitude="9.879614" municipality="Rabi" name="Ogooue Maritime">
|
||
<normalizedToken originalValue="Ogooué">Ogooue</normalizedToken>
|
||
Maritime
|
||
</location>
|
||
:
|
||
<collectingMunicipality>Rabi</collectingMunicipality>
|
||
, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="2.4" unit="m" value="24.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="2.4" unit="m" value="24.0">24 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="28.1" value="-1.9244723">1°55'28.1"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="48.26" value="9.880073">9°52'48.26"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2013-08-21">21 August 2013</collectingDate>
|
||
(st),
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Nguema et al. 1743</emphasis>
|
||
; Rabi, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="5.0" unit="m" value="50.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="5.0" unit="m" value="50.0">50 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="54" orientation="latitude" precision="1" seconds="51.36" value="-1.9142666">1°54'51.36"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="41.56" value="9.878211">9°52'41.56"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2013-10-28">28 October 2013</collectingDate>
|
||
(st),
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Nguema et al</emphasis>
|
||
. 1922; Rabi, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="5.0" unit="m" value="50.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="5.0" unit="m" value="50.0">50 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="27.09" value="-1.9241917">1°55'27.09"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="41.56" value="9.878211">9°52'41.56"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2013-11-05">5 November 2013</collectingDate>
|
||
(st),
|
||
<emphasis italics="true" pageId="4" pageNumber="43">Nguema et al. 2057</emphasis>
|
||
; Rabi, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">32 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="37.57" value="-1.9271028">1°55'37.57"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="50.66" value="9.880739">9°52'50.66"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2014-09-02">2 September 2014</collectingDate>
|
||
<pageBreakToken pageId="5" pageNumber="44" start="start">(</pageBreakToken>
|
||
fl),
|
||
<emphasis italics="true" pageId="5" pageNumber="44">Nguema et al. 2825B</emphasis>
|
||
; Rabi, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">32 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="37.57" value="-1.9271028">1°55'37.57"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="50.66" value="9.880739">9°52'50.66"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2014-09-02">2 September 2014</collectingDate>
|
||
(fr),
|
||
<emphasis italics="true" pageId="5" pageNumber="44">Nguema et al. 2825C</emphasis>
|
||
; Rabi, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">32 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="30.22" value="-1.9250612">1°55'30.22"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="42.18" value="9.878384">9°52'42.18"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2014-09-23">23 September 2014</collectingDate>
|
||
(fl),
|
||
<emphasis italics="true" pageId="5" pageNumber="44">Nguema et al. 2832</emphasis>
|
||
; Rabi, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="3.2" unit="m" value="32.0">32 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="30.35" value="-1.9250973">1°55'30.35"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="41.79" value="9.878275">9°52'41.79"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2014-10-02">2 October 2014</collectingDate>
|
||
(fl),
|
||
<emphasis italics="true" pageId="5" pageNumber="44">Nguema et al. 2833</emphasis>
|
||
; Rabi, 25-ha permanent plot,
|
||
<quantity metricMagnitude="1" metricUnit="m" metricValue="6.1" unit="m" value="61.0">
|
||
<elevation metricMagnitude="1" metricUnit="m" metricValue="6.1" unit="m" value="61.0">61 m</elevation>
|
||
</quantity>
|
||
elev.,
|
||
<geoCoordinate degrees="1" direction="south" minutes="55" orientation="latitude" precision="1" seconds="36.44" value="-1.9267889">1°55'36.44"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="9" direction="east" minutes="52" orientation="longitude" precision="1" seconds="46.61" value="9.879614">9°52'46.61"E</geoCoordinate>
|
||
,
|
||
<collectingDate value="2014-12-02">2 December 2014</collectingDate>
|
||
(fr),
|
||
<emphasis italics="true" pageId="5" pageNumber="44">Nguema et al. 2926</emphasis>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="5" pageNumber="44" type="preliminary conservation status">
|
||
<paragraph pageId="5" pageNumber="44">Preliminary conservation status.</paragraph>
|
||
<paragraph pageId="5" pageNumber="44">
|
||
The conservation status of
|
||
<taxonomicName authorityName="Kenfack & Nguema" authorityYear="2019" class="Magnoliopsida" family="Lecythidaceae" genus="Rhaptopetalum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhaptopetalum rabiense" order="Ericales" pageId="5" pageNumber="44" phylum="Tracheophyta" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="5" pageNumber="44">Rhaptopetalum rabiense</emphasis>
|
||
</taxonomicName>
|
||
was evaluated using the IUCN Red List Categories and Criteria Version3.1 (
|
||
<bibRefCitation author="IUCN" journalOrPublisher="Kew Bulletin" pageId="6" pageNumber="45" refId="B4" refString="IUCN, 2012. IUCN Red List Categories and Criteria: Version 3.1 (2nd edn). IUCN Gland and Cambridge." title="IUCN Red List Categories and Criteria: Version 3.1 (2 nd edn). IUCN Gland and Cambridge." year="2012">IUCN 2012</bibRefCitation>
|
||
). The extent of occurrence (EOO) and the area of occupancy (AOO), estimated using the web Geospatial Conservation Assessment Tool or GeoCAT (
|
||
<bibRefCitation DOI="https://doi.org/10.3897/zookeys.150.2109" author="Bachman, S" journalOrPublisher="ZooKeys" pageId="6" pageNumber="45" pagination="117 - 126" refId="B2" refString="Bachman, S, Moat, J, Hill, AW, de Torre, J, Scott, B, 2011. Supporting Red List threat assessments with GeoCAT: Geospatial conservation assessment tool. ZooKeys 150: 117 - 126, DOI: https://doi.org/10.3897/zookeys.150.2109" title="Supporting Red List threat assessments with GeoCAT: Geospatial conservation assessment tool." url="https://doi.org/10.3897/zookeys.150.2109" volume="150" year="2011">Bachman et al. 2011</bibRefCitation>
|
||
) and the auto-value cell size length of 2 km, were 0.214 km2 and 8.00 km2, respectively. These two values meet the criteria B1 (EOO <100 km2) and B2 (AOO <10 km2) for Critically Endangered, following the IUCN Red List Categories and Criteria Version 3.1 (
|
||
<bibRefCitation author="IUCN" journalOrPublisher="Kew Bulletin" pageId="6" pageNumber="45" refId="B4" refString="IUCN, 2012. IUCN Red List Categories and Criteria: Version 3.1 (2nd edn). IUCN Gland and Cambridge." title="IUCN Red List Categories and Criteria: Version 3.1 (2 nd edn). IUCN Gland and Cambridge." year="2012">IUCN 2012</bibRefCitation>
|
||
). The species is not under legal protection. The type locality is an oil and gas production field and, at the same time, a logging concession. These activities are likely to result in its population reduction and/or in a fragmentation of its range.
|
||
<taxonomicName lsidName="R. rabiense" pageId="5" pageNumber="44" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="5" pageNumber="44">R. rabiense</emphasis>
|
||
</taxonomicName>
|
||
in the studied plot has 299 individuals with dbh ≥ 1cm (12 individuals per hectare) and seems to be regenerating, based on diameter size class distribution. It is known only from its type locality and has not been recorded in the adjacent national parks of Loango National Park on the west and Moukalaba Doudou National Park on the east. We therefore assess
|
||
<taxonomicName lsidName="R. rabiense" pageId="5" pageNumber="44" rank="species" species="rabiense">
|
||
<emphasis italics="true" pageId="5" pageNumber="44">R. rabiense</emphasis>
|
||
</taxonomicName>
|
||
with the preliminary IUCN Red List status of Critically Endangered CR B12ab(iii).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |