471 lines
40 KiB
XML
471 lines
40 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.166.55731" ID-GBIF-Dataset="37949e85-d3ac-41ff-a573-6e6da990779e" ID-PMC="PMC7679348" ID-Pensoft-Pub="1314-2003-166-105" ID-Pensoft-UUID="8F57AC2CADAB543E8CF6E9F942CE5417" ID-PubMed="33239958" ModsDocID="1314-2003-166-105" checkinTime="1605365375237" checkinUser="pensoft" docAuthor="Wu, Lei, Averyanov, Leonid V., Nguyen, Khang Sinh, Maisak, Tatiana V. & Hu, Yan-Hua" docDate="2020" docId="1F04817C65EE521BBE019216B13A2C07" docLanguage="en" docName="PhytoKeys 166: 105-115" docOrigin="PhytoKeys 166" docSource="http://dx.doi.org/10.3897/phytokeys.166.55731" docTitle="Leptomischus hiepii Wu & Averyanov & Nguyen & Maisak & Hu 2020, sp. nov." docType="treatment" docVersion="4" id="8F57AC2CADAB543E8CF6E9F942CE5417" lastPageNumber="105" masterDocId="8F57AC2CADAB543E8CF6E9F942CE5417" masterDocTitle="Leptomischus hiepii, a new species of Rubiaceae from Vietnam" masterLastPageNumber="115" masterPageNumber="105" pageNumber="105" updateTime="1668140113378" 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>Leptomischus hiepii, a new species of Rubiaceae from Vietnam</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>Wu, Lei</mods:namePart>
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<mods:affiliation>College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China</mods:affiliation>
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<mods:nameIdentifier type="email">wuleiibk@163.com</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Averyanov, Leonid V.</mods:namePart>
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<mods:affiliation>Komarov Botanical Inst., Russian Academy of Sciences, Prof. Popov St. 2, RU- 197376 St. Petersburg, Russia</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Nguyen, Khang Sinh</mods:namePart>
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<mods:affiliation>Institute of Ecology and Biological Resources, Vietnam Academy of Sciences and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, 100000, Vietnam & Graduate Univ. of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, 100000, Vietnam</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Maisak, Tatiana V.</mods:namePart>
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<mods:affiliation>Komarov Botanical Inst., Russian Academy of Sciences, Prof. Popov St. 2, RU- 197376 St. Petersburg, Russia</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Hu, Yan-Hua</mods:namePart>
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<mods:affiliation>College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>166</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>105</mods:start>
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<mods:end>115</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.166.55731</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.166.55731</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-166-105</mods:identifier>
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<mods:identifier type="Pensoft-UUID">8F57AC2CADAB543E8CF6E9F942CE5417</mods:identifier>
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<treatment ID-GBIF-Taxon="169063256" LSID="urn:lsid:plazi:treatment:1F04817C65EE521BBE019216B13A2C07" httpUri="http://treatment.plazi.org/id/1F04817C65EE521BBE019216B13A2C07" lastPageNumber="105" pageId="0" pageNumber="105">
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<subSubSection pageId="0" pageNumber="105" type="nomenclature">
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<paragraph pageId="0" pageNumber="105">
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<taxonomicName LSID="1F04817C-65EE-521B-BE01-9216B13A2C07" authority="L. Wu, K. S. Nguyen & Aver." authorityName="Wu & Averyanov & Nguyen & Maisak & Hu" authorityYear="2020" class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus hiepii" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="hiepii" status="sp. nov.">Leptomischus hiepii L.Wu, K.S. Nguyen & Aver.</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="105">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Leptomischus hiepii A habit B leaf, upper portion, adaxial surface; lower portion, abaxial surface C capsule, view from above D dissected flower showing stamens and pistil. Drawn by Bi-Shan Li from the holotype in CFSI." figureDoi="10.3897/phytokeys.166.55731.figure1" httpUri="https://binary.pensoft.net/fig/474731" pageId="0" pageNumber="105">Figs 1</figureCitation>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Leptomischus hiepii A typical habitat B, C habit D unequal leaf pair and stipules E inflorescence F flowers, view of the throat G dissected flower H calyx lobes and disc, seen from above. Photos and design by K. S. Nguyen and L. Wu." figureDoi="10.3897/phytokeys.166.55731.figure2" httpUri="https://binary.pensoft.net/fig/474732" pageId="0" pageNumber="105">, 2</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Leptomischus hiepii A longitudinally dissected ovary B transversely dissected ovary C mature fruits and viviparous seeds D longitudinally dissected capsule E Transversely dissected capsule F seeds. Photos and design by K. S. Nguyen." figureDoi="10.3897/phytokeys.166.55731.figure3" httpUri="https://binary.pensoft.net/fig/474733" pageId="0" pageNumber="105">, 3</figureCitation>
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,
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<figureCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological comparison of Leptomischus hiepii, L. wallichii, L. erianthus and L. funingensis (Lo 1993; Chen and Taylor 2011; Hareesh et al. 2017)." pageId="0" pageNumber="105">Table 1</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="105" type="diagnosis">
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<paragraph pageId="0" pageNumber="105">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="105">
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Similar to
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<taxonomicName lsidName="L. wallichii" pageId="0" pageNumber="105" rank="species" species="wallichii">
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<emphasis italics="true" pageId="0" pageNumber="105">L. wallichii</emphasis>
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</taxonomicName>
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,
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<taxonomicName lsidName="L. erianthus" pageId="0" pageNumber="105" rank="species" species="erianthus">
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<emphasis italics="true" pageId="0" pageNumber="105">L. erianthus</emphasis>
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</taxonomicName>
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and
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<taxonomicName lsidName="L. funingensis" pageId="0" pageNumber="105" rank="species" species="funingensis">
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<emphasis italics="true" pageId="0" pageNumber="105">L. funingensis</emphasis>
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</taxonomicName>
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, but differs mainly by its anisophyllous leaves (vs. isophyllous), stipules usually 2-lobed (vs. entire or 3-lobed), 1-flowered inflorescence (vs. several-flowered), homostylous flowers (vs. heterostylous), and corolla tubular-campanulate, 3.2-4 cm long (vs. tubular, tubular-infundibulariform or tubular-salverform, 1.4-1.6(-3) cm).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="105" type="materials_examined">
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<paragraph pageId="0" pageNumber="105">Type.</paragraph>
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<paragraph pageId="0" pageNumber="105">
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Vietnam. Son La province: Muong La district, Ngoc Chien commune, Muong La Nature Reserve, around point
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<geoCoordinate degrees="21.61032" direction="north" orientation="latitude" precision="1" value="21.61032">21.61032°N</geoCoordinate>
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,
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<geoCoordinate degrees="104.10576" direction="east" orientation="longitude" precision="1" value="104.10576">104.10576°E</geoCoordinate>
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, elevation 1320-1350 m a.s.l., remnants of primary evergreen broad-leaved forest along streams at base and on steep slope of sandstone mountain, lithophytic perennial herb 30-45 cm tall, in wet places, locally common, 2 March 2019,
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<emphasis italics="true" pageId="0" pageNumber="105">Nguyen Sinh Khang, Mai Van Duc and Lo Van Chieu, NSK 1153</emphasis>
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(holotype CSFI [CSFI069614]; isotypes CSFI, HN, LE [LE01058686, LE01058688, photo: LE01061374]).
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</paragraph>
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<caption doi="10.3897/phytokeys.166.55731.figure1" httpUri="https://binary.pensoft.net/fig/474731" pageId="0" pageNumber="105" start="Figure 1" startId="F1">
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<paragraph pageId="0" pageNumber="105">
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<emphasis bold="true" pageId="0" pageNumber="105">Figure 1.</emphasis>
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<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus hiepii" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="hiepii">
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<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus hiepii</emphasis>
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</taxonomicName>
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<emphasis bold="true" pageId="0" pageNumber="105">A</emphasis>
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habit
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<emphasis bold="true" pageId="0" pageNumber="105">B</emphasis>
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leaf, upper portion, adaxial surface; lower portion, abaxial surface
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<emphasis bold="true" pageId="0" pageNumber="105">C</emphasis>
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capsule, view from above
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<emphasis bold="true" pageId="0" pageNumber="105">D</emphasis>
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dissected flower showing stamens and pistil. Drawn by Bi-Shan Li from the holotype in CFSI.
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</paragraph>
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</caption>
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<caption doi="10.3897/phytokeys.166.55731.figure2" httpUri="https://binary.pensoft.net/fig/474732" pageId="0" pageNumber="105" start="Figure 2" startId="F2">
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<paragraph pageId="0" pageNumber="105">
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<emphasis bold="true" pageId="0" pageNumber="105">Figure 2.</emphasis>
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<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus hiepii" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="hiepii">
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<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus hiepii</emphasis>
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</taxonomicName>
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<emphasis bold="true" pageId="0" pageNumber="105">A</emphasis>
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typical habitat
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<emphasis bold="true" pageId="0" pageNumber="105">B, C</emphasis>
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habit
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<emphasis bold="true" pageId="0" pageNumber="105">D</emphasis>
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unequal leaf pair and stipules
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<emphasis bold="true" pageId="0" pageNumber="105">E</emphasis>
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inflorescence
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<emphasis bold="true" pageId="0" pageNumber="105">F</emphasis>
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flowers, view of the throat
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<emphasis bold="true" pageId="0" pageNumber="105">G</emphasis>
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dissected flower
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<emphasis bold="true" pageId="0" pageNumber="105">H</emphasis>
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calyx lobes and disc, seen from above. Photos and design by K.S. Nguyen and L. Wu.
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</paragraph>
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</caption>
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<caption doi="10.3897/phytokeys.166.55731.figure3" httpUri="https://binary.pensoft.net/fig/474733" pageId="0" pageNumber="105" start="Figure 3" startId="F3">
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<paragraph pageId="0" pageNumber="105">
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<emphasis bold="true" pageId="0" pageNumber="105">Figure 3.</emphasis>
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<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus hiepii" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="hiepii">
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<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus hiepii</emphasis>
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</taxonomicName>
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<emphasis bold="true" pageId="0" pageNumber="105">A</emphasis>
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longitudinally dissected ovary
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<emphasis bold="true" pageId="0" pageNumber="105">B</emphasis>
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transversely dissected ovary
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<emphasis bold="true" pageId="0" pageNumber="105">C</emphasis>
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mature fruits and viviparous seeds
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<emphasis bold="true" pageId="0" pageNumber="105">D</emphasis>
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longitudinally dissected capsule
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<emphasis bold="true" pageId="0" pageNumber="105">E</emphasis>
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Transversely dissected capsule
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<emphasis bold="true" pageId="0" pageNumber="105">F</emphasis>
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seeds. Photos and design by K.S. Nguyen.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="105" type="description">
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<paragraph pageId="0" pageNumber="105">Description.</paragraph>
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<paragraph pageId="0" pageNumber="105">
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Perennial herb, lithophytic and occasionally terrestrial, 30-45 cm tall. Stem ascending or drooping, somewhat straight, simple or branched, terete, glabrous, green, with internodes of 6-30 mm long, 2-3 mm in diameter. Stipules persistent, glabrous, green, slightly equal to unequal, broadly to narrowly ovate, (4-)8-10(-16)
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<normalizedToken originalValue="×">x</normalizedToken>
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(3-)4-8(-10) mm, distally often divided up to 2/3th of their length into 2 narrowly ovate to broadly lanceolate, 3-5(-9) mm long obtuse lobes, usually bearing 2-3 longitudinal veins united at base and 3-5 lateral veins on each side. Leaves anisophyllous, glabrous on both surfaces, dark green above, paler green below, subsessile to shortly petiolate; petioles terete, 0.5-2.5 mm long, glabrous; leaf blades lanceolate to narrowly lanceolate, cuneate at base, gradually attenuate to caudate at apex, margin entire, often irregularly wavy; veins prominent on both surfaces; of a pair of leaves, the smaller one (8-)10-20(-30)
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<normalizedToken originalValue="×">x</normalizedToken>
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(2.5-)3-5(-8) mm, with (3-)5-7(-9) secondary veins on each side of midrib, the larger one (3-)5-9(-11)
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<normalizedToken originalValue="×">x</normalizedToken>
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(0.4-)0.8-1.2(-1.5) cm, with (9-)11-15(-17) secondary veins on each side of midrib. Inflorescence terminal, single-flowered; peduncle ca. 1 mm long, densely puberulent; bracts 2, subulate, 5-6 mm long, ca. 1 mm wide at base, acute, puberulent outside, glabrous inside. Flowers solitary, sessile, 6-merous, sometimes 5-merous, bisexual, homostylous. Calyx campanulate, densely puberulent outside; hypanthium obconic, 2.5-3.2 mm long, lobes triangular, acute, 2.2-4
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<normalizedToken originalValue="×">x</normalizedToken>
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1.6-2.5 mm, almost glabrous inside, ciliate along margin, somewhat recurved at anthesis. Corolla tubular-campanulate, (3.2-)3.4-3.8(-4) cm long, (1.2-)1.3-1.5(-1.7) cm in diameter at the throat, pure white, shortly densely villous outside, almost glabrous inside; corolla lobes (5-)6, triangular ovate, straight spreading or slightly recurved at anthesis, 5-8 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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4-7 mm, tips acute. Stamens (5-)6, filaments white, glabrous, connate with corolla tube from base to 5-6 mm below the throat, free parts terete, 1.8-2.6 mm, slightly incurved; anthers pale yellowish, oblong elliptic, 2.2-2.5
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<normalizedToken originalValue="×">x</normalizedToken>
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0.6-0.8 mm, dorsifixed, introrse. Ovary inferior, bilocular; disk glabrous, marginally convex and concave at the center; style erect, filiform, 2.5-3.2 cm long, white, glabrous; stigma dull brownish, finely papillose, 2-lobed; lobes narrowly oblong or linear, 2.5-3.5 mm long, recurved at a straight angle from the style axis, positioned 1.4-1.8 mm below the throat, slightly above anther apices. Fruit capsular, subglobose, ca. 3-4 mm in diameter, crowned by persistent calyx lobes, dehiscent through apical portion, pericarp and septum membranous, brown; placenta fleshy, brown, mushroom-shaped during anthesis then turning dark brown, woody, and broadly conoid (when dried), attached to middle of septum, distally bearing numerous seeds; seeds angled, 0.3-0.5 mm; testa reticulate or verrucous, black.
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</paragraph>
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<caption ID-Table-UUID="C918DA35CD095DE3CDF399841964148B" httpUri="http://table.plazi.org/id/C918DA35CD095DE3CDF399841964148B" pageId="0" pageNumber="105" start="Table 1" startId="T1">
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<paragraph pageId="0" pageNumber="105">
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<emphasis bold="true" pageId="0" pageNumber="105">Table 1.</emphasis>
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Morphological comparison of
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<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus hiepii" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="hiepii">
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<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus hiepii</emphasis>
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</taxonomicName>
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,
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<taxonomicName lsidName="L. wallichii" pageId="0" pageNumber="105" rank="species" species="wallichii">
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<emphasis italics="true" pageId="0" pageNumber="105">L. wallichii</emphasis>
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</taxonomicName>
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,
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<taxonomicName lsidName="L. erianthus" pageId="0" pageNumber="105" rank="species" species="erianthus">
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<emphasis italics="true" pageId="0" pageNumber="105">L. erianthus</emphasis>
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</taxonomicName>
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and
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<taxonomicName lsidName="L. funingensis" pageId="0" pageNumber="105" rank="species" species="funingensis">
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<emphasis italics="true" pageId="0" pageNumber="105">L. funingensis</emphasis>
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</taxonomicName>
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(
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<bibRefCitation author="Lo, HS" journalOrPublisher="Zhiwu Fenlei Xuebao" pageId="0" pageNumber="105" pagination="73 - 276" refId="B12" refString="Lo, HS, 1993. A revision of the genus Leptomischus Drake. Zhiwu Fenlei Xuebao 31 (3): 73 - 276" title="A revision of the genus Leptomischus Drake." volume="31" year="1993">Lo 1993</bibRefCitation>
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;
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<bibRefCitation author="Chen, T" editor="Wu, ZY" journalOrPublisher="Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="105" pagination="211 - 212" refId="B3" refString="Chen, T, Taylor, CM, 2011. Leptomischus. In: Wu, ZY, Hong, DY, Raven, PH, Eds., Flora of China. Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 211 - 212" title="Leptomischus." volumeTitle="Flora of China." year="2011">Chen and Taylor 2011</bibRefCitation>
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;
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<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.332.1.10" author="Hareesh, VS" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="105" pagination="88 - 92" refId="B9" refString="Hareesh, VS, Wu, L, Sabu, M, 2017. Leptomischus flaviflorus (Rubiaceae), a new species from India. Phytotaxa 332 (1): 88 - 92, DOI: https://doi.org/10.11646/phytotaxa.332.1.10" title="Leptomischus flaviflorus (Rubiaceae), a new species from India." url="https://doi.org/10.11646/phytotaxa.332.1.10" volume="332" year="2017">Hareesh et al. 2017</bibRefCitation>
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).
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="105">
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<table pageId="0" pageNumber="105">
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<tr pageId="0" pageNumber="105">
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<th colspan="1" pageId="0" pageNumber="105" rowspan="1">Characters</th>
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<th colspan="1" pageId="0" pageNumber="105" rowspan="1">
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<taxonomicName lsidName="L. hiepii" pageId="0" pageNumber="105" rank="species" species="hiepii">
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<emphasis italics="true" pageId="0" pageNumber="105">L. hiepii</emphasis>
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</taxonomicName>
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</th>
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<th colspan="1" pageId="0" pageNumber="105" rowspan="1">
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<taxonomicName lsidName="L. wallichii" pageId="0" pageNumber="105" rank="species" species="wallichii">
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<emphasis italics="true" pageId="0" pageNumber="105">L. wallichii</emphasis>
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</taxonomicName>
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</th>
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<th colspan="1" pageId="0" pageNumber="105" rowspan="1">
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<taxonomicName lsidName="L. erianthus" pageId="0" pageNumber="105" rank="species" species="erianthus">
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<emphasis italics="true" pageId="0" pageNumber="105">L. erianthus</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
<th colspan="1" pageId="0" pageNumber="105" rowspan="1">
|
||
<taxonomicName lsidName="L. funingensis" pageId="0" pageNumber="105" rank="species" species="funingensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">L. funingensis</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Stem</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">glabrous</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Glabrous</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">densely hirsute</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Pilose</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Stipule</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">narrowly ovate to broadly ovate, 8-14 mm long, entire to 2-lobed</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">ovate to lanceolate, 7-13 mm long, 3-lobed</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">ovate or lanceolate, 8-9 mm long, entire</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">suborbicular, 4-5 mm long, entire</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Leaves</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">
|
||
anisophyllous, lanceolate to narrowly lanceolate, glabrous, 0.8-11
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.25-1.5 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">
|
||
isophyllous, oblanceolate to elliptic, glabrous, 4-12
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.7-1.8 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">
|
||
isophyllous, narrowly elliptic to lanceolate-elliptic, strigose to glabrescent, 4-12
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.5-4 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">
|
||
isophyllous, ovate, narrowly elliptic, or rarely obovate, adaxially glabrescent to pilose, abaxially villose, 8-15
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2.5-4.5 cm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Inflorescence</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">1-flowered</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">capitate, several-flowered</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">subcapitate, several-flowered</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">cymose, several-flowered</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Flower</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">homostylous, (5-)6-merous</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">unknown, 5-merous</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">distylous, (4-)5(-7)-merous</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">distylous, (4-)5(-6)-merous</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Corolla shape</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">tubular-campanulate</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Tubular</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">tubular-infundibulariform</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">tubular-salverform</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Corolla tube length</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">3.2-4 cm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">ca.1.5-3.0 cm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">1.5-1.6 cm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">1.4-1.6 cm</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Anther length</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">2.2-2.5 mm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">ca. 2 mm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">2-2.5 mm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">2-2.2 mm</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="105">
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">Stigma length</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">2.5-3.5 mm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">ca. 1.3-1.5 mm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">3-3.5 mm</td>
|
||
<td colspan="1" pageId="0" pageNumber="105" rowspan="1">3.5-4.5 mm</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="105" type="etymology">
|
||
<paragraph pageId="0" pageNumber="105">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="105">The specific epithet honors Dr. Nguyen Tien Hiep, a famous botanist who made significant contributions to the plant taxonomy and nature conservation in Vietnam.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="105" type="materials_examined">
|
||
<paragraph pageId="0" pageNumber="105">Additional specimens examined</paragraph>
|
||
<paragraph pageId="0" pageNumber="105">
|
||
<emphasis bold="true" pageId="0" pageNumber="105">(paratypes)</emphasis>
|
||
. Vietnam. Son La province: Muong La district, Ngoc Chien commune, Muong La Nature Reserve, same location as type specimen, lithophytic perennial herbs bearing fleshy capsules, fruit opened by an apical operculum, 22 August 2020,
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Nguyen Sinh Khang & Lo Van Chieu, NSK 1347</emphasis>
|
||
(HN).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="105" type="habitat">
|
||
<paragraph pageId="0" pageNumber="105">Habitat, phenology and conservation status.</paragraph>
|
||
<paragraph pageId="0" pageNumber="105">
|
||
Lithophytic or terrestrial herb growing on rocks in streams and on moist cliffs under primary and secondary evergreen broad-leaved submontane forest on sandstone at elevations of 1300-1400 m a.s.l.. The plants flower in February-March, and bear fruits in July-August. The species was observed as being very common on waterfall cliffs and in humid places; around 300-500 mature individuals occur in Muong La Nature Reserve, spread over a very limited area of approximately 2500 m2. In Muong La Nature Reserve, agricultural activities and exploitation for timber and non-timber forest products are prohibited. According to indigenous people, this species is not used as medicinal or ornamental plant, and disturbances to its existence so far have not been recorded. Numerous localities in the mountainous areas of the Hoang Lien Son range, spreading over the provinces of Lai Chau (Phong Tho, Tam Duong and Than Uyen districts) and Lao Cai (Bat Xat, Sa Pa and Van Ban districts) to Yen Bai (Tram Tau, Nghia Lo, Van Yen and Mu Cang Chai districts) and Son La (Muong La and Bac Yen districts), in north-western Vietnam and the south-western parts of Yunnan province in south-western China, fit the habitat characteristics of this new species. It is therefore expected that more populations of the species will be discovered soon if extensive field surveys are carried out in this region. At present, however,
|
||
<taxonomicName lsidName="L. hiepii" pageId="0" pageNumber="105" rank="species" species="hiepii">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">L. hiepii</emphasis>
|
||
</taxonomicName>
|
||
can be considered as an endemic species to Son La province, and is tentatively assessed as "data deficient" (DD) in accordance with the IUCN Red list categories and criteria (2017).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="105" type="distribution">
|
||
<paragraph pageId="0" pageNumber="105">Distribution.</paragraph>
|
||
<paragraph pageId="0" pageNumber="105">Endemic to north-western Vietnam (Son La province, Muong La district, Muong La Nature Reserve).</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="105" type="discussion">
|
||
<paragraph pageId="0" pageNumber="105">Discussion.</paragraph>
|
||
<paragraph pageId="0" pageNumber="105">
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus hiepii" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="hiepii">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus hiepii</emphasis>
|
||
</taxonomicName>
|
||
is a very special member of the genus in several ways, and is inconsistent with most of its congeners. Typical characters of
|
||
<taxonomicName lsidName="L. hiepii" pageId="0" pageNumber="105" rank="species" species="hiepii">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">L. hiepii</emphasis>
|
||
</taxonomicName>
|
||
are anisophyllous leaves, 1-flowered inflorescences, homostylous (5-)6-merous flowers and anthers and stigma positioned at the level of the throat of the corolla tube, while all currently known species of the genus are reported as having isophyllous leaves, several-flowered inflorescences, heterostylous 5-merous flowers, and anthers positioned much lower than the stigma or vice versa. Anisophyllous and isophyllous leaves are commonly seen in
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Mouretia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Mouretia" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Mouretia</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Mycetia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Mycetia" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Mycetia</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Argostemma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argostemma" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Argostemma</emphasis>
|
||
</taxonomicName>
|
||
Wall. within the tribe
|
||
<taxonomicName genus="Argostemmateae" lsidName="Argostemmateae" pageId="0" pageNumber="105" rank="genus">Argostemmateae</taxonomicName>
|
||
(
|
||
<bibRefCitation author="Chen, T" editor="Wu, ZY" journalOrPublisher="Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="105" pagination="211 - 212" refId="B3" refString="Chen, T, Taylor, CM, 2011. Leptomischus. In: Wu, ZY, Hong, DY, Raven, PH, Eds., Flora of China. Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 211 - 212" title="Leptomischus." volumeTitle="Flora of China." year="2011">Chen and Taylor 2011</bibRefCitation>
|
||
). The 1-flowered inflorescence has not been recorded in
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus</emphasis>
|
||
</taxonomicName>
|
||
but is reported in
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Argostemma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argostemma" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Argostemma</emphasis>
|
||
</taxonomicName>
|
||
, e.g. in
|
||
<taxonomicName lsidName="A. bachmaense" pageId="0" pageNumber="105" rank="species" species="bachmaense">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">A. bachmaense</emphasis>
|
||
</taxonomicName>
|
||
T.V.Do (
|
||
<bibRefCitation DOI="https://doi.org/10.1111/njb.02765" author="Do, VT" journalOrPublisher="Kew Bulletin" pageId="0" pageNumber="105" refId="B5" refString="Do, VT, Zhe, C, Yang, N, 2020. Argostemmabachmaense (Rubiaceae, Rubioideae, Argostemmateae), a new species from central Vietnam. Nordic Journal of Botany 38(7): e02765. https://doi.org/10.1111/njb.02765" title="Argostemmabachmaense (Rubiaceae, Rubioideae, Argostemmateae), a new species from central Vietnam. Nordic Journal of Botany 38 (7): e 02765." url="https://doi.org/10.1111/njb.02765" year="2020">Do et al. 2020</bibRefCitation>
|
||
). Homostylous flowers have hitherto not been recorded in the tribe
|
||
<taxonomicName genus="Argostemmateae" lsidName="Argostemmateae" pageId="0" pageNumber="105" rank="genus">Argostemmateae</taxonomicName>
|
||
but the rare presence of homostylous flowers in otherwise heterostylous genera is not rare in
|
||
<taxonomicName family="Rubiaceae" lsidName="" pageId="0" pageNumber="105" rank="family">Rubiaceae</taxonomicName>
|
||
(
|
||
<bibRefCitation author="Chen, T" editor="Wu, ZY" journalOrPublisher="Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="105" pagination="211 - 212" refId="B3" refString="Chen, T, Taylor, CM, 2011. Leptomischus. In: Wu, ZY, Hong, DY, Raven, PH, Eds., Flora of China. Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 211 - 212" title="Leptomischus." volumeTitle="Flora of China." year="2011">Chen and Taylor 2011</bibRefCitation>
|
||
), e.g., homostylous flowers are reported in
|
||
<taxonomicName authorityName="T. T. Duan & D. X. Zhang" authorityYear="2016" class="Magnoliopsida" family="Rubiaceae" genus="Mussaenda" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Mussaenda campanulata" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="campanulata">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Mussaenda campanulata</emphasis>
|
||
</taxonomicName>
|
||
T.T.Duan & D.X.Zhang (
|
||
<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.265.2.9" author="Duan, TT" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="105" pagination="164 - 168" refId="B7" refString="Duan, TT, Li, S, Zhang, DX, 2016. Mussaenda campanulata (Rubiaceae), a new monomorphic species from China. Phytotaxa 265 (2): 164 - 168, DOI: https://doi.org/10.11646/phytotaxa.265.2.9" title="Mussaenda campanulata (Rubiaceae), a new monomorphic species from China." url="https://doi.org/10.11646/phytotaxa.265.2.9" volume="265" year="2016">Duan et al. 2016</bibRefCitation>
|
||
) and
|
||
<taxonomicName authorityName="Schanzer" authorityYear="2005" class="Magnoliopsida" family="Rubiaceae" genus="Ophiorrhiza" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ophiorrhiza longifloriformis" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="longifloriformis">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Ophiorrhiza longifloriformis</emphasis>
|
||
</taxonomicName>
|
||
Schanzer (
|
||
<bibRefCitation author="Schanzer, IA" journalOrPublisher="Thai Forest Bulletin (Botany)" pageId="0" pageNumber="105" pagination="161 - 170" refId="B19" refString="Schanzer, IA, 2005. Three new species of Ophiorrhiza (Rubiaceae - Ophiorrhizeae) from Thailand. Thai Forest Bulletin (Botany) 33: 161 - 170" title="Three new species of Ophiorrhiza (Rubiaceae - Ophiorrhizeae) from Thailand." volume="33" year="2005">Schanzer 2005</bibRefCitation>
|
||
). Flower merosity is variable in the genera
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Mycetia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Mycetia" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Mycetia</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Argostemma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argostemma" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Argostemma</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation author="Chen, T" editor="Wu, ZY" journalOrPublisher="Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="105" pagination="211 - 212" refId="B3" refString="Chen, T, Taylor, CM, 2011. Leptomischus. In: Wu, ZY, Hong, DY, Raven, PH, Eds., Flora of China. Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 211 - 212" title="Leptomischus." volumeTitle="Flora of China." year="2011">Chen and Taylor 2011</bibRefCitation>
|
||
) and
|
||
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus</emphasis>
|
||
</taxonomicName>
|
||
as well, or even within the same inflorescence of a species such as
|
||
<taxonomicName lsidName="L. erianthus" pageId="0" pageNumber="105" rank="species" species="erianthus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">L. erianthus</emphasis>
|
||
</taxonomicName>
|
||
bearing 4-7-merous flowers (Fig.
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Leptomischus erianthus A habit B inflorescence C flowers D Dissected longistylous flower E dissected brevistylous flower F capsules, seen from above. L. funingensis. G infructescence, seen from above H transversely dissected ovary I Longitudinally dissected ovary. Scale bars: 1 cm (A-G); 2 mm (H, I). Photos and design by L. Wu." figureDoi="10.3897/phytokeys.166.55731.figure4" httpUri="https://binary.pensoft.net/fig/474734" pageId="0" pageNumber="105">4B, E</figureCitation>
|
||
). Anthers and stigma positioned at the level of the throat of the corolla tube are a common feature in homostylous flowers of
|
||
<taxonomicName family="Rubiaceae" lsidName="" pageId="0" pageNumber="105" rank="family">Rubiaceae</taxonomicName>
|
||
and also occurs in
|
||
<taxonomicName authorityName="S.S.R.Bennet" authorityYear="1981" class="Magnoliopsida" family="Rubiaceae" genus="Neohymenopogon" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Neohymenopogon" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Neohymenopogon</emphasis>
|
||
</taxonomicName>
|
||
Bennet of the tribe
|
||
<taxonomicName genus="Argostemmateae" lsidName="Argostemmateae" pageId="0" pageNumber="105" rank="genus">Argostemmateae</taxonomicName>
|
||
(
|
||
<bibRefCitation author="Chen, T" editor="Wu, ZY" journalOrPublisher="Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="105" pagination="211 - 212" refId="B3" refString="Chen, T, Taylor, CM, 2011. Leptomischus. In: Wu, ZY, Hong, DY, Raven, PH, Eds., Flora of China. Vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 211 - 212" title="Leptomischus." volumeTitle="Flora of China." year="2011">Chen and Taylor 2011</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<caption doi="10.3897/phytokeys.166.55731.figure4" httpUri="https://binary.pensoft.net/fig/474734" pageId="0" pageNumber="105" start="Figure 4" startId="F4">
|
||
<paragraph pageId="0" pageNumber="105">
|
||
<emphasis bold="true" pageId="0" pageNumber="105">Figure 4.</emphasis>
|
||
<taxonomicName authorityName="H. S. Lo" authorityYear="1998" class="Magnoliopsida" family="Rubiaceae" genus="Leptomischus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leptomischus erianthus" order="Gentianales" pageId="0" pageNumber="105" phylum="Tracheophyta" rank="species" species="erianthus">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">Leptomischus erianthus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" pageId="0" pageNumber="105">A</emphasis>
|
||
habit
|
||
<emphasis bold="true" pageId="0" pageNumber="105">B</emphasis>
|
||
inflorescence
|
||
<emphasis bold="true" pageId="0" pageNumber="105">C</emphasis>
|
||
flowers
|
||
<emphasis bold="true" pageId="0" pageNumber="105">D</emphasis>
|
||
Dissected longistylous flower
|
||
<emphasis bold="true" pageId="0" pageNumber="105">E</emphasis>
|
||
dissected brevistylous flower
|
||
<emphasis bold="true" pageId="0" pageNumber="105">F</emphasis>
|
||
capsules, seen from above.
|
||
<taxonomicName lsidName="L. funingensis" pageId="0" pageNumber="105" rank="species" species="funingensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="105">L. funingensis</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<emphasis bold="true" pageId="0" pageNumber="105">G</emphasis>
|
||
infructescence, seen from above
|
||
<emphasis bold="true" pageId="0" pageNumber="105">H</emphasis>
|
||
transversely dissected ovary
|
||
<emphasis bold="true" pageId="0" pageNumber="105">I</emphasis>
|
||
Longitudinally dissected ovary. Scale bars: 1 cm (
|
||
<emphasis bold="true" pageId="0" pageNumber="105">A-G</emphasis>
|
||
); 2 mm (
|
||
<emphasis bold="true" pageId="0" pageNumber="105">H, I</emphasis>
|
||
). Photos and design by L. Wu.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |