260 lines
17 KiB
XML
260 lines
17 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.136.47625" ID-PMC="PMC6920221" ID-Pensoft-Pub="1314-2003-136-35" ID-Pensoft-UUID="95ED267A583D533CB5DA4EB140B4FC7F" ID-PubMed="31866737" ModsDocID="1314-2003-136-35" checkinTime="1576162269506" checkinUser="pensoft" docAuthor="Pornpongrungrueng, Pimwadee, Chantaranothai, Pranom, Parnell, John A. N. & Hodkinson, Trevor R." docDate="2019" docId="332DCBBBE11B51C69F505C9E826BDA63" docLanguage="en" docName="PhytoKeys 136: 35-44" docOrigin="PhytoKeys 136" docSource="http://dx.doi.org/10.3897/phytokeys.136.47625" docTitle="Phyllanthus huamotensis Pornpongrungrueng & Chantaranothai & Parnell & Hodkinson 2019, sp. nov." docType="treatment" docVersion="5" id="95ED267A583D533CB5DA4EB140B4FC7F" lastPageNumber="35" masterDocId="95ED267A583D533CB5DA4EB140B4FC7F" masterDocTitle="Two new species of Phyllanthus (Phyllanthaceae) from Thailand" masterLastPageNumber="44" masterPageNumber="35" pageNumber="35" updateTime="1668139582331" 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 Phyllanthus (Phyllanthaceae) from Thailand</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>Pornpongrungrueng, Pimwadee</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Chantaranothai, Pranom</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Parnell, John A. N.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Hodkinson, Trevor R.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2019</mods:date>
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<mods:detail type="volume">
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<mods:number>136</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>35</mods:start>
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<mods:end>44</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.136.47625</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.136.47625</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-136-35</mods:identifier>
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<mods:identifier type="Pensoft-UUID">95ED267A583D533CB5DA4EB140B4FC7F</mods:identifier>
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||
</mods:mods>
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<treatment ID-GBIF-Taxon="160702301" LSID="urn:lsid:plazi:treatment:332DCBBBE11B51C69F505C9E826BDA63" httpUri="http://treatment.plazi.org/id/332DCBBBE11B51C69F505C9E826BDA63" lastPageNumber="35" pageId="0" pageNumber="35">
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<subSubSection pageId="0" pageNumber="35" type="nomenclature">
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<paragraph pageId="0" pageNumber="35">
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<taxonomicName LSID="332DCBBB-E11B-51C6-9F50-5C9E826BDA63" authority="Pornp., Chantar. & J. Parn." authorityName="Pornpongrungrueng & Chantaranothai & Parnell & Hodkinson" authorityYear="2019" class="Magnoliopsida" family="Phyllanthaceae" genus="Phyllanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phyllanthus huamotensis" order="Malpighiales" pageId="0" pageNumber="35" phylum="Tracheophyta" rank="species" species="huamotensis" status="sp. nov.">Phyllanthus huamotensis Pornp., Chantar. & J.Parn.</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="35">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Phyllanthus huamotensis Pornp., Chantar. & J. Parn., sp. nov. A habit B, C leaf shapes (B adaxial surface C abaxial surface) D stipule E pistillate flower F staminate flower G mature capsule. Drawn by Pimwadee Pornpongrungrueng." figureDoi="10.3897/phytokeys.136.47625.figure1" httpUri="https://binary.pensoft.net/fig/364085" pageId="0" pageNumber="35" tableDoi="10.3897/phytokeys.136.47625.figure1">Figs 1</figureCitation>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phyllanthus huamotensis Pornp., Chantar. & J. Parn., sp. nov. A, B habit C branchlet showing axillary fascicle of staminate flowers D branchlet showing pistillate flower E branchlet showing young red capsule. A Photo by Natthawut Triyuttachai B, C photos by Suchart Chanhomhual D, E photos by Kanokorn Ruengsawang." figureDoi="10.3897/phytokeys.136.47625.figure2" httpUri="https://binary.pensoft.net/fig/364086" pageId="0" pageNumber="35" tableDoi="10.3897/phytokeys.136.47625.figure2">, 2</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="diagnosis">
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<paragraph pageId="0" pageNumber="35">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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<taxonomicName class="Magnoliopsida" family="Phyllanthaceae" genus="Phyllanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phyllanthus huamotensis" order="Malpighiales" pageId="0" pageNumber="35" phylum="Tracheophyta" rank="species" species="huamotensis">
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<emphasis italics="true" pageId="0" pageNumber="35">Phyllanthus huamotensis</emphasis>
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</taxonomicName>
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is one of the most distinct species of
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<taxonomicName class="Magnoliopsida" family="Phyllanthaceae" genus="Phyllanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phyllanthus" order="Malpighiales" pageId="0" pageNumber="35" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="35">Phyllanthus</emphasis>
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</taxonomicName>
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in Thailand, easily distinguished by its reddish branchlets and stem, conspicuous reddish venation, especially on the lower leaf surface, red sepals with long fimbriate margins and red capsule with a papillose-puberulous surface. It is most similar to
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<taxonomicName lsidName="P. pulcher" pageId="0" pageNumber="35" rank="species" species="pulcher">
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<emphasis italics="true" pageId="0" pageNumber="35">P. pulcher</emphasis>
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</taxonomicName>
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Wall. ex
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<normalizedToken originalValue="Müll">Muell</normalizedToken>
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.Arg., but differs in its undershrub habit that is up to 30 cm high (
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<taxonomicName lsidName="P. pulcher" pageId="0" pageNumber="35" rank="species" species="pulcher">
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<emphasis italics="true" pageId="0" pageNumber="35">P. pulcher</emphasis>
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</taxonomicName>
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is a shrub up to 1.5 m high), small sized leaves (2-9
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<normalizedToken originalValue="×">x</normalizedToken>
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(2
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<normalizedToken originalValue="–)3–">-)3-</normalizedToken>
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8 mm) (leaves in
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<taxonomicName lsidName="P. pulcher" pageId="0" pageNumber="35" rank="species" species="pulcher">
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<emphasis italics="true" pageId="0" pageNumber="35">P. pulcher</emphasis>
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</taxonomicName>
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are 7-28
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<normalizedToken originalValue="×">x</normalizedToken>
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6-17 mm) with conspicuous reddish venation (inconspicuous on both leaf surfaces in
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<taxonomicName lsidName="P. pulcher" pageId="0" pageNumber="35" rank="species" species="pulcher">
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<emphasis italics="true" pageId="0" pageNumber="35">P. pulcher</emphasis>
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</taxonomicName>
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) and a red capsule with a papillose-puberulous surface (glabrous in
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<taxonomicName lsidName="P. pulcher" pageId="0" pageNumber="35" rank="species" species="pulcher">
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<emphasis italics="true" pageId="0" pageNumber="35">P. pulcher</emphasis>
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</taxonomicName>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="materials_examined">
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<paragraph pageId="0" pageNumber="35">Type.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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Thailand. Tak, Umpang district, Doi Hua Mot;
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<geoCoordinate degrees="16" direction="north" minutes="2.63" orientation="latitude" precision="9" value="16.043833">16°2.63'N</geoCoordinate>
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,
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<geoCoordinate degrees="98" direction="east" minutes="51.26" orientation="longitude" precision="9" value="98.85433">98°51.26'E</geoCoordinate>
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; alt. 901 m; 22 Aug. 2019;
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<emphasis italics="true" pageId="0" pageNumber="35">P. Pornpongrungrueng</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="35">N. Triyutthachai</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="35">S. Ninkaew & S. Sukcharoen 1287</emphasis>
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(
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<emphasis bold="true" italics="true" pageId="0" pageNumber="35">holotype</emphasis>
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KKU;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="35">isotypes</emphasis>
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BKF, K, QBG, TCD).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="description">
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<paragraph pageId="0" pageNumber="35">Description.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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Undershrubs up to 30 cm high, branchlets and stem reddish, terete, young branchlets minutely puberulous.
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<emphasis italics="true" pageId="0" pageNumber="35">Stipules</emphasis>
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triangular-lanceolate, 0.5-1
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<normalizedToken originalValue="×">x</normalizedToken>
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0.3-0.5 mm, glabrous.
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<emphasis italics="true" pageId="0" pageNumber="35">Leaves</emphasis>
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alternate; petioles 0.4-0.9 mm long, glabrous; lamina broadly ovate, obovate, rounded, broadly elliptic, ovate-oblong, 2-9
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<normalizedToken originalValue="×">x</normalizedToken>
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(2
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<normalizedToken originalValue="–)3–">-)3-</normalizedToken>
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8 mm, subcoriaceous, glabrous on both surfaces, base oblique, cordate, broadly cuneate, truncate, rounded, margin entire, revolute, apex acute, acuminate, rounded; nerves in 4-6 pairs; reticulation reddish, conspicuous, especially on the lower surface.
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<emphasis italics="true" pageId="0" pageNumber="35">Flowers</emphasis>
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red, unisexual; staminate flowers 2
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<normalizedToken originalValue="–3(–">-3(-</normalizedToken>
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4) in axillary fascicles in proximal axils; pistillate flower solitary in distal axils.
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<emphasis italics="true" pageId="0" pageNumber="35">Bracts</emphasis>
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subulate, 0.2-0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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0.1-0.2 mm, glabrous.
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<emphasis italics="true" pageId="0" pageNumber="35">Staminate flowers</emphasis>
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: pedicel 4-10 mm long, glabrous; sepals 4, red, triangular, rhombic-ovate, lanceolate, 1.5-2
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<normalizedToken originalValue="×">x</normalizedToken>
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1-1.2 mm, glabrous, margin long fimbriate; disc glands 4, reniform; stamens 4, staminal column ca. 0.2 mm long, anthers ca. 0.2 mm long, transversely dehiscent.
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<emphasis italics="true" pageId="0" pageNumber="35">Pistillate flowers</emphasis>
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: pedicel 7-17 mm long, glabrous; sepals 5-6, red, rhombic-ovate, 1.5-3
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<normalizedToken originalValue="×">x</normalizedToken>
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0.6-1 mm, membranous, glabrous, margin fimbriate; disc glands 5 or 6, free, obovate with truncate apex; ovary superior, ca. 0.7 mm diam., 3-locular, ovules 2 per locule, papillose-puberulous; styles 3, free, ca. 0.1 mm long; stigmas nearly completely bifid, ca. 0.2 mm long, glabrous.
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<emphasis italics="true" pageId="0" pageNumber="35">Fruits</emphasis>
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capsule, red, 2.5-3 mm diam., papillose-puberulous; pedicel 7-17 mm long.
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<emphasis italics="true" pageId="0" pageNumber="35">Seeds</emphasis>
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trigonous, brown, 1.5-1.8
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<normalizedToken originalValue="×">x</normalizedToken>
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1.1-1.2 mm, surface transversely striate.
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</paragraph>
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<caption doi="10.3897/phytokeys.136.47625.figure1" httpUri="https://binary.pensoft.net/fig/364085" pageId="0" pageNumber="35" start="Figure 1" startId="F1">
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<paragraph pageId="0" pageNumber="35">
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<emphasis bold="true" pageId="0" pageNumber="35">Figure 1.</emphasis>
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<taxonomicName class="Magnoliopsida" family="Phyllanthaceae" genus="Phyllanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phyllanthus huamotensis" order="Malpighiales" pageId="0" pageNumber="35" phylum="Tracheophyta" rank="species" species="huamotensis">
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<emphasis italics="true" pageId="0" pageNumber="35">Phyllanthus huamotensis</emphasis>
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</taxonomicName>
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Pornp., Chantar. & J.Parn., sp. nov.
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<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
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habit
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<emphasis bold="true" pageId="0" pageNumber="35">B, C</emphasis>
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leaf shapes (
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<emphasis bold="true" pageId="0" pageNumber="35">B</emphasis>
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adaxial surface
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<emphasis bold="true" pageId="0" pageNumber="35">C</emphasis>
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abaxial surface)
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<emphasis bold="true" pageId="0" pageNumber="35">D</emphasis>
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stipule
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<emphasis bold="true" pageId="0" pageNumber="35">E</emphasis>
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pistillate flower
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<emphasis bold="true" pageId="0" pageNumber="35">F</emphasis>
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staminate flower
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<emphasis bold="true" pageId="0" pageNumber="35">G</emphasis>
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mature capsule. Drawn by Pimwadee Pornpongrungrueng.
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</paragraph>
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</caption>
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<caption doi="10.3897/phytokeys.136.47625.figure2" httpUri="https://binary.pensoft.net/fig/364086" pageId="0" pageNumber="35" start="Figure 2" startId="F2">
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<paragraph pageId="0" pageNumber="35">
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<emphasis bold="true" pageId="0" pageNumber="35">Figure 2.</emphasis>
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<taxonomicName class="Magnoliopsida" family="Phyllanthaceae" genus="Phyllanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phyllanthus huamotensis" order="Malpighiales" pageId="0" pageNumber="35" phylum="Tracheophyta" rank="species" species="huamotensis">
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<emphasis italics="true" pageId="0" pageNumber="35">Phyllanthus huamotensis</emphasis>
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</taxonomicName>
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Pornp., Chantar. & J.Parn., sp. nov.
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<emphasis bold="true" pageId="0" pageNumber="35">A, B</emphasis>
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habit
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<emphasis bold="true" pageId="0" pageNumber="35">C</emphasis>
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branchlet showing axillary fascicle of staminate flowers
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<emphasis bold="true" pageId="0" pageNumber="35">D</emphasis>
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branchlet showing pistillate flower
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<emphasis bold="true" pageId="0" pageNumber="35">E</emphasis>
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branchlet showing young red capsule.
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<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
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Photo by Natthawut Triyuttachai
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<emphasis bold="true" pageId="0" pageNumber="35">B, C</emphasis>
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photos by Suchart Chanhomhual
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<emphasis bold="true" pageId="0" pageNumber="35">D, E</emphasis>
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photos by Kanokorn Ruengsawang.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="phenology">
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<paragraph pageId="0" pageNumber="35">Phenology.</paragraph>
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<paragraph pageId="0" pageNumber="35">Flowering and fruiting period is June to December.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="habitat">
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<paragraph pageId="0" pageNumber="35">Habitat and distribution.</paragraph>
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<paragraph pageId="0" pageNumber="35">This species grows on open limestone hills, at 880-937 m above sea level. Currently, it is known only from the type location Doi Huamot, Tak province in northern Thailand.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="conservation status">
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<paragraph pageId="0" pageNumber="35">Conservation status.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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The species is only known from the type locality. It should be categorised as Critically endangered [CR, B1ab (iii)] according to the IUCN Red List Criteria and Categories version 3.1 (
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<bibRefCitation author="IUCN" journalOrPublisher="Kew Bulletin" pageId="0" pageNumber="35" refId="B4" refString="IUCN, 2012. IUCN Red List Categories and Criteria: Version 3.1 (2nd edn). Gland and Cambridge, 32 pp." title="IUCN Red List Categories and Criteria: Version 3.1 (2 nd edn). Gland and Cambridge, 32 pp." year="2012">IUCN 2012</bibRefCitation>
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). The extent of occurrence is estimated to be less than 20 km2 and this species is found in a restricted area on open limestone hills which is a threatened ecosystem.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="etymology">
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<paragraph pageId="0" pageNumber="35">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="35">The name of this species is given, based on the location where the plant was first discovered.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="vernacular">
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<paragraph pageId="0" pageNumber="35">Vernacular.</paragraph>
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<paragraph pageId="0" pageNumber="35">Ma Kham Pom Din Huamot.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="materials_examined">
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<paragraph pageId="0" pageNumber="35">Additional specimens examined.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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<emphasis bold="true" pageId="0" pageNumber="35">Thailand</emphasis>
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: Tak, Umpang district, Doi Hua Mot;
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<geoCoordinate degrees="15" direction="north" minutes="56.46" orientation="latitude" precision="9" value="15.941">15°56.46'N</geoCoordinate>
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,
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<geoCoordinate degrees="98" direction="east" minutes="51.93" orientation="longitude" precision="9" value="98.8655">98°51.93'E</geoCoordinate>
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; alt. 937 m; 2 Dec. 2018;
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<emphasis italics="true" pageId="0" pageNumber="35">P. Pornpongrungrueng</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="35">N. Triyutthachai & P. Chantaranothai 1270</emphasis>
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(BKF, KKU), ibid.;
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<geoCoordinate degrees="15" direction="north" minutes="51.40" orientation="latitude" precision="9" value="15.856667">15°51.40'N</geoCoordinate>
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,
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<geoCoordinate degrees="98" direction="east" minutes="50.88" orientation="longitude" precision="9" value="98.848">98°50.88'E</geoCoordinate>
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; alt. 882 m; 22 Aug. 2019;
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<emphasis italics="true" pageId="0" pageNumber="35">P. Pornpongrungrueng</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="35">S. Ninkaew</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="35">S. Sukcharoen & N. Triyutthachai 1285</emphasis>
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(BKF, KKU, TCD).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |