405 lines
32 KiB
XML
405 lines
32 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.53.5079" ID-PMC="PMC4547025" ID-Pensoft-Pub="1314-2003-53-83" ID-Pensoft-UUID="FF98DD26FF8AD752B817FF81FFE4AC22" ID-PubMed="26312042" ID-Zenodo-Dep="576292" ModsDocID="1314-2003-53-83" checkinTime="1451251407221" checkinUser="pensoft" docAuthor="Rodda, Michele" docDate="2015" docId="A7B7608043A071FD5AF06A6692605A6C" docLanguage="en" docName="PhytoKeys 53: 83-93" docOrigin="PhytoKeys 53" docPubDate="2015-07-21" docSource="http://dx.doi.org/10.3897/phytokeys.53.5079" docTitle="Hoya bakoensis Rodda 2015, sp. nov." docType="treatment" docVersion="6" id="FF98DD26FF8AD752B817FF81FFE4AC22" lastPageNumber="88" masterDocId="FF98DD26FF8AD752B817FF81FFE4AC22" masterDocTitle="Two new species of Hoya R. Br. (Apocynaceae, Asclepiadoideae) from Borneo" masterLastPageNumber="93" masterPageNumber="83" pageNumber="84" updateTime="1668141425532" 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>Two new species of Hoya R. Br. (Apocynaceae, Asclepiadoideae) from Borneo</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>Rodda, Michele</mods:namePart>
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<mods:affiliation>The Herbarium, Singapore Botanic Gardens, 1 Cluny Road, 259569 Singapore</mods:affiliation>
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<mods:nameIdentifier type="email">rodda.michele@gmail.com</mods:nameIdentifier>
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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>2015</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2015-07-21</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>53</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>83</mods:start>
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<mods:end>93</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.53.5079</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.53.5079</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-53-83</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FF98DD26FF8AD752B817FF81FFE4AC22</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576292</mods:identifier>
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</mods:mods>
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<subSection lastPageId="5" lastPageNumber="88" pageId="1" pageNumber="84" type="multiple">
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<treatment ID-GBIF-Taxon="152008561" LSID="urn:lsid:plazi:treatment:A7B7608043A071FD5AF06A6692605A6C" httpUri="http://treatment.plazi.org/id/A7B7608043A071FD5AF06A6692605A6C" lastPageId="5" lastPageNumber="88" pageId="1" pageNumber="84">
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<subSubSection pageId="1" pageNumber="84" type="nomenclature">
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<paragraph pageId="1" pageNumber="84">
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<taxonomicName LSID="A7B76080-43A0-71FD-5AF0-6A6692605A6C" authority="Rodda" authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="1" pageNumber="84" phylum="Tracheophyta" rank="species" species="bakoensis" status="sp. nov.">Hoya bakoensis Rodda</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="84">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Hoya bakoensis photographed in the field from the type plant Rodda M MR 1042 b (SING) prior to pressing. A inflorescence, frontal view B Inflorescence, side view C A single flower, front view D Revolute margins of the corolla lobes, calyx and pedicel E, F Corolla, side view G Flower, longitudinal section H Pedicel, calyx and ovary I Pollinarium with twin pollinia. (Photographs by M. Rodda)" figureDoi="10.3897/phytokeys.53.5079.figure3" httpUri="https://binary.pensoft.net/fig/47620" pageId="1" pageNumber="84">Figs 3</figureCitation>
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Hoya bakoensis in situ in Bako National Park (Sarawak, Malaysia) A Habitat, kerangas heath forest B Mature plant rooted inside the trunk of the host plant where an ant nest is located C Seedlings germinating from the opening of an ant nest in a hollow trunk." figureDoi="10.3897/phytokeys.53.5079.figure4" httpUri="https://binary.pensoft.net/fig/47621" pageId="1" pageNumber="84">, 4</figureCitation>
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Hoya bakoensis leaves photographed in the field from Rodda M MR 1042 b (A, B, E, F) and Rodda M MR 1042 a (C, D) (SING) prior to pressing. A, C, E Adaxial side B, D, F Abaxial side." figureDoi="10.3897/phytokeys.53.5079.figure5" httpUri="https://binary.pensoft.net/fig/47622" pageId="1" pageNumber="84">, 5</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="86" pageId="2" pageNumber="85" type="diagnostic characters">
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<paragraph pageId="2" pageNumber="85">
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<pageBreakToken pageId="2" pageNumber="85" start="start">Diagnostic</pageBreakToken>
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characters.
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</paragraph>
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<paragraph lastPageId="3" lastPageNumber="86" pageId="2" pageNumber="85">
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Similar to
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<taxonomicName authorityName="Schltr" authorityYear="1908" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya aeschynanthoides" order="Gentianales" pageId="2" pageNumber="85" phylum="Tracheophyta" rank="species" species="aeschynanthoides">
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<emphasis italics="true" pageId="2" pageNumber="85">Hoya aeschynanthoides</emphasis>
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</taxonomicName>
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Schltr. as both species have bilobed outer corona lobes, but differing in the size and colour of the flowers (3.5-4
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<pageBreakToken pageId="3" pageNumber="86" start="start">mm</pageBreakToken>
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in diameter, pink corolla, yellow and red corona lobes for
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<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="3" pageNumber="86" phylum="Tracheophyta" rank="species" species="bakoensis">
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<emphasis italics="true" pageId="3" pageNumber="86">Hoya bakoensis</emphasis>
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</taxonomicName>
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; ca. 5 mm in diameter and white for
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<taxonomicName authorityName="Schltr" authorityYear="1908" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya aeschynanthoides" order="Gentianales" pageId="3" pageNumber="86" phylum="Tracheophyta" rank="species" species="aeschynanthoides">
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<emphasis italics="true" pageId="3" pageNumber="86">Hoya aeschynanthoides</emphasis>
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</taxonomicName>
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) and in the habit, that in
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<taxonomicName authorityName="Schltr" authorityYear="1908" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya aeschynanthoides" order="Gentianales" pageId="3" pageNumber="86" phylum="Tracheophyta" rank="species" species="aeschynanthoides">
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<emphasis italics="true" pageId="3" pageNumber="86">Hoya aeschynanthoides</emphasis>
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</taxonomicName>
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is decumbent while
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<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="3" pageNumber="86" phylum="Tracheophyta" rank="species" species="bakoensis">
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<emphasis italics="true" pageId="3" pageNumber="86">Hoya bakoensis</emphasis>
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</taxonomicName>
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is a weak twining climber.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="86" type="type">
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<paragraph pageId="3" pageNumber="86">Type.</paragraph>
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<paragraph pageId="3" pageNumber="86">
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Malaysia, Borneo, Sarawak, Bako National Park, along Tajor Trail, 20 March 2015,
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<emphasis italics="true" pageId="3" pageNumber="86">Rodda M MR1042b</emphasis>
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(SING, holotype; SAR, KEP, isotypes)
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="86" type="description">
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<paragraph pageId="3" pageNumber="86">Description.</paragraph>
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<paragraph pageId="3" pageNumber="86">
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Epiphytic climber with white exudate in all vegetative parts.
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<emphasis italics="true" pageId="3" pageNumber="86">Stems</emphasis>
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slender, weakly twining upward, internodes (1 mm-)2-7(-10) cm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.7-1.5(-2) mm, dull green, sparsely pubescent when young, scabrous;
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<emphasis italics="true" pageId="3" pageNumber="86">adventitious root</emphasis>
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sparsely produced along the stems and just under the nodes where they are paired.
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<emphasis italics="true" pageId="3" pageNumber="86">Leaves</emphasis>
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petiolate; petiole straight or recurved, 4-10
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<normalizedToken originalValue="×">x</normalizedToken>
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1-1.5 mm, dark green to maroon, sparsely pubescent;
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<emphasis italics="true" pageId="3" pageNumber="86">lamina</emphasis>
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ovate (lanceolate) (1.5-)2-4(-5)
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<normalizedToken originalValue="×">x</normalizedToken>
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1-2.8 cm, base attenuate (acute), apex apiculate (cuspidate), dark green above, slightly pubescent on young leaves only, lighter green underneath with occasionally a slightly darker midrib and edge, glabrous, margin occasionally ciliate; penninerved, secondary veins obscure;
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<emphasis italics="true" pageId="3" pageNumber="86">colleters</emphasis>
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one at each lamina base, triangular to ovate 0.1-0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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0.3-0.5 mm.
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<emphasis italics="true" pageId="3" pageNumber="86">Inflorescence</emphasis>
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pseudo-umbelliform, slightly convex, 10-15 flowered;
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<emphasis italics="true" pageId="3" pageNumber="86">peduncle</emphasis>
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4-6 cm
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<normalizedToken originalValue="×">x</normalizedToken>
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1-1.5 mm in diameter, dull green to brown, pubescent; rachis indeterminate (-7)
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<normalizedToken originalValue="×">x</normalizedToken>
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ca. 2 mm in diameter.
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<emphasis italics="true" pageId="3" pageNumber="86">Pedicel</emphasis>
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3-7
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<normalizedToken originalValue="×">x</normalizedToken>
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0.7-0.9 mm in diameter, pale green with pink spots, papillose.
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<emphasis italics="true" pageId="3" pageNumber="86">Calyx</emphasis>
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lobes triangular, 0.7-1
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<normalizedToken originalValue="×">x</normalizedToken>
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0.5-0.8 mm, apex acute or round, light green with pink edge, sparsely ciliate;
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<emphasis italics="true" pageId="3" pageNumber="86">basal colleter</emphasis>
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one in each calyx lobe sinus, ovate, 150-200
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<normalizedToken originalValue="×">x</normalizedToken>
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80-100
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<normalizedToken originalValue="µm">µm</normalizedToken>
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.
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<emphasis italics="true" pageId="3" pageNumber="86">Corolla</emphasis>
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revolute, 3.5-4 mm in diameter, ca. 6 mm when flattened;
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<emphasis italics="true" pageId="3" pageNumber="86">corolla lobes</emphasis>
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basally fused, tube 1.2-1.5 mm long, lobes triangular, 2-3
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<normalizedToken originalValue="×">x</normalizedToken>
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2.4-2.7 mm, pink, pubescent inside, outside glabrous.
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<emphasis italics="true" pageId="3" pageNumber="86">Corona</emphasis>
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staminal, 2.8-3 mm in diameter, 0.9-1.1 mm high;
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<emphasis italics="true" pageId="3" pageNumber="86">corona lobes</emphasis>
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oblong, 1.2-1.4
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<normalizedToken originalValue="×">x</normalizedToken>
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0.7-0.8 mm, convex above, underneath sulcate with inrolled margins, outer process apex bifid, light yellow, inner process elongate, red, with a yellow round tip.
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<emphasis italics="true" pageId="3" pageNumber="86">Anthers</emphasis>
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broadly triangular, 400-450
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<normalizedToken originalValue="×">x</normalizedToken>
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550-650
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, with apical triangular membranaceous appendage.
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<emphasis italics="true" pageId="3" pageNumber="86">Pollinia</emphasis>
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clavate, 200-250
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<normalizedToken originalValue="×">x</normalizedToken>
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90-110
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, narrowing towards the base, apex obliquely truncate, with evident pellucid margin;
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<emphasis italics="true" pageId="3" pageNumber="86">corpusculum</emphasis>
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oblong, constricted in the middle, 80-100
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<normalizedToken originalValue="×">x</normalizedToken>
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50-60
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<normalizedToken originalValue="µm">µm</normalizedToken>
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;
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<emphasis italics="true" pageId="3" pageNumber="86">caudicle</emphasis>
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broad, spathulate, hyaline, 110-130
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<normalizedToken originalValue="×">x</normalizedToken>
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30-45
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<normalizedToken originalValue="µm">µm</normalizedToken>
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at the widest.
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<emphasis italics="true" pageId="3" pageNumber="86">Style-head</emphasis>
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5 angled in cross section, with 5 lobes alternating with the stamens, style-head apex round, 200-300
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, ca. 0.5 mm broad at the base;
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<emphasis italics="true" pageId="3" pageNumber="86">ovary</emphasis>
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ovate with a narrow tip, 0.8-1 mm, each carpel ca. 0.3 mm wide at the base, light green.
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<emphasis italics="true" pageId="3" pageNumber="86">Fruit</emphasis>
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(unripe) a single linear follicle, 10 cm
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<normalizedToken originalValue="×">x</normalizedToken>
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2 mm (widest),
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<emphasis italics="true" pageId="3" pageNumber="86">seed</emphasis>
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(unripe) narrowly lanceolate, 3-4 mm long, winged, long comose.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="86" type="etymology">
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<paragraph pageId="3" pageNumber="86">Etymology.</paragraph>
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<paragraph pageId="3" pageNumber="86">The species is named after the collection locality of the holotype, Bako National Park (Sarawak, Malaysia).</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="86" type="distribution and ecology">
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<paragraph pageId="3" pageNumber="86">Distribution and ecology.</paragraph>
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<paragraph pageId="3" pageNumber="86">
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<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="3" pageNumber="86" phylum="Tracheophyta" rank="species" species="bakoensis">
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<emphasis italics="true" pageId="3" pageNumber="86">Hoya bakoensis</emphasis>
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</taxonomicName>
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is only known from Bako National Park, where it is common along Tajor Trail in moist, shady kerangas heath forest near a stream. The species is strictly epiphytic and it was found mostly germinating from the opening of small ant nests located inside hollow tree trunks (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Hoya bakoensis in situ in Bako National Park (Sarawak, Malaysia) A Habitat, kerangas heath forest B Mature plant rooted inside the trunk of the host plant where an ant nest is located C Seedlings germinating from the opening of an ant nest in a hollow trunk." figureDoi="10.3897/phytokeys.53.5079.figure4" httpUri="https://binary.pensoft.net/fig/47621" pageId="3" pageNumber="86">4</figureCitation>
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). The plants observed were forming small clumps of weakly climbing stems near the germinating point or more rarely were climbing towards the tree canopy potentially in response to low light.
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</paragraph>
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<caption ID-Zenodo-Dep="964880" doi="10.3897/phytokeys.53.5079.figure3" httpUri="https://binary.pensoft.net/fig/47620" pageId="3" pageNumber="86" start="Figure 3" startId="F3">
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<paragraph pageId="3" pageNumber="86">
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<emphasis bold="true" pageId="3" pageNumber="86">Figure 3.</emphasis>
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<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="3" pageNumber="86" phylum="Tracheophyta" rank="species" species="bakoensis">
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<emphasis italics="true" pageId="3" pageNumber="86">Hoya bakoensis</emphasis>
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</taxonomicName>
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photographed in the field from the type plant
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<emphasis italics="true" pageId="3" pageNumber="86">Rodda M MR1042b</emphasis>
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(SING) prior to pressing.
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<emphasis bold="true" pageId="3" pageNumber="86">A</emphasis>
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inflorescence, frontal view
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<emphasis bold="true" pageId="3" pageNumber="86">B</emphasis>
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Inflorescence, side view
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<emphasis bold="true" pageId="3" pageNumber="86">C</emphasis>
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A single flower, front view
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<emphasis bold="true" pageId="3" pageNumber="86">D</emphasis>
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Revolute margins of the corolla lobes, calyx and pedicel
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<emphasis bold="true" pageId="3" pageNumber="86">E, F</emphasis>
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Corolla, side view
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<emphasis bold="true" pageId="3" pageNumber="86">G</emphasis>
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Flower, longitudinal section
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<emphasis bold="true" pageId="3" pageNumber="86">H</emphasis>
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Pedicel, calyx and ovary
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<emphasis bold="true" pageId="3" pageNumber="86">I</emphasis>
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Pollinarium with twin pollinia. (Photographs by M. Rodda)
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="87" type="conservation status">
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<paragraph pageId="4" pageNumber="87">
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<pageBreakToken pageId="4" pageNumber="87" start="start">Conservation</pageBreakToken>
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status.
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</paragraph>
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<paragraph pageId="4" pageNumber="87">
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<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="bakoensis">
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<emphasis italics="true" pageId="4" pageNumber="87">Hoya bakoensis</emphasis>
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</taxonomicName>
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is locally common and well protected inside Bako National Park. Its conservation status is therefore Least Concern (LC) (
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<bibRefCitation author="IUCN Standards and Petitions Subcommittee" journalOrPublisher="Standards and Petitions Subcommittee" pageId="5" pageNumber="88" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B3" refString="IUCN Standards and Petitions Subcommittee, 2014. Guidelines for using the IUCN Red List categories and criteria. Version 11. Standards and Petitions Subcommittee, http://www.iucnredlist.org/documents/RedListGuidelines.pdf" title="Guidelines for using the IUCN Red List categories and criteria. Version 11" url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2014">IUCN 2014</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="88" pageId="4" pageNumber="87" type="notes">
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<paragraph pageId="4" pageNumber="87">Notes.</paragraph>
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<paragraph pageId="4" pageNumber="87">
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<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="bakoensis">
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<emphasis italics="true" pageId="4" pageNumber="87">Hoya bakoensis</emphasis>
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</taxonomicName>
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is one of the 11 Bornean
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<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="4" pageNumber="87">Hoya</emphasis>
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</taxonomicName>
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species in
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<taxonomicName authority="Acanthostemma" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya subsp. section" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="section" section="Acanthostemma">Hoya section Acanthostemma</taxonomicName>
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(Bl.) Kloppenb.
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Acanthostemma" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Acanthostemma" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Acanthostemma</emphasis>
|
||
</taxonomicName>
|
||
species are characterised by revolute corolla lobes, bilobed outer corona lobes and pollinaria with broad, spathulate caudicles. The other Bornean species in
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Acanthostemma" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Acanthostemma" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Acanthostemma</emphasis>
|
||
</taxonomicName>
|
||
are
|
||
<taxonomicName authorityName="Schltr" authorityYear="1908" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya aeschynanthoides" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="aeschynanthoides">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya aeschynanthoides</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName authorityName="T. Green & Kloppenb" authorityYear="2002" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya acicularis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="acicularis">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya acicularis</emphasis>
|
||
</taxonomicName>
|
||
, T. Green,
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2013" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya beccarii" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="beccarii">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya beccarii</emphasis>
|
||
</taxonomicName>
|
||
Rodda & Simonsson,
|
||
<taxonomicName authorityName="T. Green" authorityYear="2001" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya kloppenburgii" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="kloppenburgii">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya kloppenburgii</emphasis>
|
||
</taxonomicName>
|
||
T. Green,
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2010" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya minutiflora" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="minutiflora">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya minutiflora</emphasis>
|
||
</taxonomicName>
|
||
Rodda and Simonsson,
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pubera" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="pubera">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya pubera</emphasis>
|
||
</taxonomicName>
|
||
Bl.,
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya revoluta" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="revoluta">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya revoluta</emphasis>
|
||
</taxonomicName>
|
||
Wight ex Hook.f.,
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2013" baseAuthorityName="T. Green" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya rundumensis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="rundumensis">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya rundumensis</emphasis>
|
||
</taxonomicName>
|
||
(T. Green) Rodda and Simonsson,
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya sigillatis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="sigillatis">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya sigillatis</emphasis>
|
||
</taxonomicName>
|
||
T. Green and
|
||
<taxonomicName authorityName="Kloppenb" authorityYear="1995" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya waymaniae" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="waymaniae">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya waymaniae</emphasis>
|
||
</taxonomicName>
|
||
Kloppenb.
|
||
</paragraph>
|
||
<paragraph lastPageId="5" lastPageNumber="88" pageId="4" pageNumber="87">
|
||
Most of these species can be easily separated from
|
||
<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="bakoensis">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya bakoensis</emphasis>
|
||
</taxonomicName>
|
||
because their flowers are larger (>5 mm in diameter) or their inflorescence is markedly concave (in
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2013" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya beccarii" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="beccarii">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya beccarii</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya revoluta" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="revoluta">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya revoluta</emphasis>
|
||
</taxonomicName>
|
||
). As mentioned in the diagnosis
|
||
<taxonomicName authorityName="Schltr" authorityYear="1908" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya aeschynanthoides" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="aeschynanthoides">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya aeschynanthoides</emphasis>
|
||
</taxonomicName>
|
||
has white, only slightly larger flowers than
|
||
<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="bakoensis">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya bakoensis</emphasis>
|
||
</taxonomicName>
|
||
(ca. 5 vs. 3.5-4 mm in diameter). Additionally the bilobed outer lobes of
|
||
<taxonomicName authorityName="Schltr" authorityYear="1908" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya aeschynanthoides" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="aeschynanthoides">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya aeschynanthoides</emphasis>
|
||
</taxonomicName>
|
||
appear to be less pronounced than those of
|
||
<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="bakoensis">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya bakoensis</emphasis>
|
||
</taxonomicName>
|
||
, but this observation is based solely on the examination of the drawing attached to the type of
|
||
<taxonomicName authorityName="Schltr" authorityYear="1908" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya aeschynanthoides" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="aeschynanthoides">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya aeschynanthoides</emphasis>
|
||
</taxonomicName>
|
||
as only small buds are present on the specimen while no other specimens have been found at present. The flowers of
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pubera" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="pubera">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya pubera</emphasis>
|
||
</taxonomicName>
|
||
are also comparable in size with those of
|
||
<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="4" pageNumber="87" phylum="Tracheophyta" rank="species" species="bakoensis">
|
||
<emphasis italics="true" pageId="4" pageNumber="87">Hoya bakoensis</emphasis>
|
||
</taxonomicName>
|
||
, but they are yellow-orange, the corolla lobes are only apically revolute and the corona is more markedly
|
||
<pageBreakToken pageId="5" pageNumber="88" start="start">raised</pageBreakToken>
|
||
in the centre. Lastly,
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2010" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya minutiflora" order="Gentianales" pageId="5" pageNumber="88" phylum="Tracheophyta" rank="species" species="minutiflora">
|
||
<emphasis italics="true" pageId="5" pageNumber="88">Hoya minutiflora</emphasis>
|
||
</taxonomicName>
|
||
has the smallest flowers among all Bornean
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Acanthostemma" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Acanthostemma" order="Gentianales" pageId="5" pageNumber="88" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="5" pageNumber="88">Acanthostemma</emphasis>
|
||
</taxonomicName>
|
||
(2.6-2.8 mm in diameter).
|
||
</paragraph>
|
||
<caption ID-Zenodo-Dep="964882" doi="10.3897/phytokeys.53.5079.figure4" httpUri="https://binary.pensoft.net/fig/47621" pageId="5" pageNumber="88" start="Figure 4" startId="F4">
|
||
<paragraph pageId="5" pageNumber="88">
|
||
<emphasis bold="true" pageId="5" pageNumber="88">Figure 4.</emphasis>
|
||
<emphasis italics="true" pageId="5" pageNumber="88">
|
||
<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="5" pageNumber="88" phylum="Tracheophyta" rank="species" species="bakoensis">Hoya bakoensis</taxonomicName>
|
||
in situ
|
||
</emphasis>
|
||
in Bako National Park (Sarawak, Malaysia)
|
||
<emphasis bold="true" pageId="5" pageNumber="88">A</emphasis>
|
||
Habitat, kerangas heath forest
|
||
<emphasis bold="true" pageId="5" pageNumber="88">B</emphasis>
|
||
Mature plant rooted inside the trunk of the host plant where an ant nest is located
|
||
<emphasis bold="true" pageId="5" pageNumber="88">C</emphasis>
|
||
Seedlings germinating from the opening of an ant nest in a hollow trunk.
|
||
</paragraph>
|
||
</caption>
|
||
<caption ID-Zenodo-Dep="964884" doi="10.3897/phytokeys.53.5079.figure5" httpUri="https://binary.pensoft.net/fig/47622" pageId="5" pageNumber="88" start="Figure 5" startId="F5">
|
||
<paragraph pageId="5" pageNumber="88">
|
||
<emphasis bold="true" pageId="5" pageNumber="88">Figure 5.</emphasis>
|
||
<taxonomicName authorityName="Rodda" authorityYear="2015" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya bakoensis" order="Gentianales" pageId="5" pageNumber="88" phylum="Tracheophyta" rank="species" species="bakoensis">
|
||
<emphasis italics="true" pageId="5" pageNumber="88">Hoya bakoensis</emphasis>
|
||
</taxonomicName>
|
||
leaves photographed in the field from
|
||
<emphasis italics="true" pageId="5" pageNumber="88">Rodda M MR1042b</emphasis>
|
||
(
|
||
<emphasis bold="true" pageId="5" pageNumber="88">A, B, E, F</emphasis>
|
||
) and
|
||
<emphasis italics="true" pageId="5" pageNumber="88">Rodda M MR1042a</emphasis>
|
||
(
|
||
<emphasis bold="true" pageId="5" pageNumber="88">C, D</emphasis>
|
||
) (SING) prior to pressing.
|
||
<emphasis bold="true" pageId="5" pageNumber="88">A, C, E</emphasis>
|
||
Adaxial side
|
||
<emphasis bold="true" pageId="5" pageNumber="88">B, D, F</emphasis>
|
||
Abaxial side.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="5" pageNumber="88" type="additional specimens examined">
|
||
<paragraph pageId="5" pageNumber="88">Additional specimens examined.</paragraph>
|
||
<paragraph pageId="5" pageNumber="88">
|
||
Malaysia, Borneo, Sarawak, Bako National Park, along Tajor Trail, 20 March 2015,
|
||
<emphasis italics="true" pageId="5" pageNumber="88">Rodda M MR1042a</emphasis>
|
||
(KEP, SAR, SING)
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</subSection>
|
||
</document> |