287 lines
20 KiB
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287 lines
20 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.138.39217" ID-PMC="PMC6969004" ID-Pensoft-Pub="1314-2003-138-155" ID-Pensoft-UUID="286AA4144E7E524C92543F94726BD426" ID-PubMed="31988610" ModsDocID="1314-2003-138-155" checkinTime="1578758051074" checkinUser="pensoft" docAuthor="Ding, Hong-Bo, Yang, Bin, Maw, Mya Bhone, Win, Pyae Pyae & Tan, Yun-Hong" docDate="2020" docId="84E09738621C516C9E7913F88DB1D982" docLanguage="en" docName="PhytoKeys 138: 155-162" docOrigin="PhytoKeys 138" docSource="http://dx.doi.org/10.3897/phytokeys.138.39217" docTitle="Monolophus odontochilus Y. H. Tan & H. B. Ding 2020, sp. nov." docType="treatment" docVersion="5" id="286AA4144E7E524C92543F94726BD426" lastPageNumber="155" masterDocId="286AA4144E7E524C92543F94726BD426" masterDocTitle="A new species and two new combinations of Monolophus (Zingiberaceae) from Indo-Burma" masterLastPageNumber="162" masterPageNumber="155" pageNumber="155" updateTime="1668139606342" 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>A new species and two new combinations of Monolophus (Zingiberaceae) from Indo-Burma</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>Ding, Hong-Bo</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>Yang, Bin</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>Maw, Mya Bhone</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>Win, Pyae Pyae</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>Tan, Yun-Hong</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>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>138</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>155</mods:start>
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<mods:end>162</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.138.39217</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.138.39217</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-138-155</mods:identifier>
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<mods:identifier type="Pensoft-UUID">286AA4144E7E524C92543F94726BD426</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="161672036" LSID="urn:lsid:plazi:treatment:84E09738621C516C9E7913F88DB1D982" httpUri="http://treatment.plazi.org/id/84E09738621C516C9E7913F88DB1D982" lastPageNumber="155" pageId="0" pageNumber="155">
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<subSubSection pageId="0" pageNumber="155" type="nomenclature">
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<paragraph pageId="0" pageNumber="155">
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<taxonomicName LSID="84E09738-621C-516C-9E79-13F88DB1D982" authority="Y. H. Tan & H. B. Ding" authorityName="Y. H. Tan & H. B. Ding" authorityYear="2020" class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus odontochilus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="odontochilus" status="sp. nov.">Monolophus odontochilus Y.H.Tan & H.B.Ding</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="155">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Monolophus odontochilus Y. H. Tan & H. B. Ding, sp. nov. A habitat B ligule C leaf blade abaxially D habit E single leaf (adaxially and abaxially) F flower (side view) G flower (front view) H anther with stigma and crest (front and back view) I stigma J dorsal corolla lobe K lateral corolla lobes L bracts M bracteoles and young flower N calyx O ovary P labellum and floral tube Q lateral staminodes R stamen and stigma S ovary with style. Photographed by H. B. Ding" figureDoi="10.3897/phytokeys.138.39217.figure1" httpUri="https://binary.pensoft.net/fig/370274" pageId="0" pageNumber="155">Figure 1</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="diagnosis">
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<paragraph pageId="0" pageNumber="155">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="155">
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<taxonomicName authorityName="Y. H. Tan & H. B. Ding" authorityYear="2020" class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus odontochilus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="odontochilus">
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<emphasis italics="true" pageId="0" pageNumber="155">Monolophus odontochilus</emphasis>
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</taxonomicName>
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is morphologically similar to
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<taxonomicName lsidName="M. linearis" pageId="0" pageNumber="155" rank="species" species="linearis">
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<emphasis italics="true" pageId="0" pageNumber="155">M. linearis</emphasis>
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</taxonomicName>
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(Wall.) Wall. from India in having white flowers with yellow blotch at the base of the labellum, but differs by having elliptic to oblong leaves (vs. linear-lanceolate to lanceolate leaves), bilobed ligules (vs. entire ligules), semi-orbicular crenate labellum (vs. trilobed labellum) and purely white corolla (vs. pinkish white corolla).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="materials_examined">
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<paragraph pageId="0" pageNumber="155">Type.</paragraph>
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<paragraph pageId="0" pageNumber="155">
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Myanmar. Kachin State: Putao District, Gathu Village.
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<geoCoordinate degrees="27" direction="north" minutes="29" orientation="latitude" precision="1" seconds="07.23" value="27.485342">27°29'07.23"N</geoCoordinate>
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,
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<geoCoordinate degrees="97" direction="east" minutes="58" orientation="longitude" precision="1" seconds="19.49" value="97.972084">97°58'19.49"E</geoCoordinate>
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, 643 m, 01 June 2018,
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<emphasis italics="true" pageId="0" pageNumber="155">Y.H.Tan</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="155">B.Yang</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="155">H.B.Ding</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="155">X.D.Zeng</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="155">M.B.Maw and H.L.Neing M3886</emphasis>
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(holotype: HITBC!, isotypes: RAF!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="description">
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<paragraph pageId="0" pageNumber="155">Description.</paragraph>
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<paragraph pageId="0" pageNumber="155">
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Perennial herbs, rhizome short; pseudostem erect, leafy 50-70 cm long.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">Leaves</emphasis>
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5-13, sub-sessile, elliptic to oblong, 10.2-14
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<normalizedToken originalValue="×">x</normalizedToken>
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3.0-5.0 cm, base cuneate, apex caudate to 2.0 cm long, margins entire, adaxial surface dark green, glabrous, abaxially light green, pubescent;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">ligule</emphasis>
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membranous, 6-8 mm long, hairy, apex unequally bilobed.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">Inflorescences</emphasis>
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terminal, 5-7 cm long, rachis glabrous;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">flowers</emphasis>
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white with yellow blotch at the base of the labellum;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">bracts</emphasis>
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4-6, along rachis, distichous, oblong, 3.5-4.0
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<normalizedToken originalValue="×">x</normalizedToken>
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1.0-1.3 cm, greenish, outer surface pubescent, base truncate, apex cuspidate to 0.8 cm, 2-flowered;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">bracteoles</emphasis>
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membranous, lanceolate, ca. 1.5
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<normalizedToken originalValue="×">x</normalizedToken>
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0.8 cm, pubescent, rounded;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">calyx</emphasis>
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tubular, 1.3-1.4
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<normalizedToken originalValue="×">x</normalizedToken>
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0.3-0.4 cm, pubescent, greenish, split 6-7 mm down one side, apex acute;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">floral tube</emphasis>
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4.3-4.5 cm, ca. 3.5 mm wide at mouth, white, glabrous;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">dorsal corolla lobe</emphasis>
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lanceolate, 2.2-2.3
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<normalizedToken originalValue="×">x</normalizedToken>
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0.6-0.7 cm, white, glabrous, hooded at apex, apical cusp ca. 2 mm long;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">lateral corolla lobes</emphasis>
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similar to dorsal lobe, narrower, 2.0-2.1
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<normalizedToken originalValue="×">x</normalizedToken>
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0.3-0.4 cm, hooded at apex, apical cusp ca. 1 mm long;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">lateral staminodes</emphasis>
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elliptic, 1.5-1.6
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<normalizedToken originalValue="×">x</normalizedToken>
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0.9-1.0 cm, white, apex rounded;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">labellum</emphasis>
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semi-orbicular, 4.4-4.8
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<normalizedToken originalValue="×">x</normalizedToken>
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3.2-3.6 cm, white with yellow spot at base, margin crenate;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">anther</emphasis>
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4-5 mm long;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">anther crest</emphasis>
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flabellate, 2-3
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<normalizedToken originalValue="×">x</normalizedToken>
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4-5 mm, white, apex entire;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">stigma</emphasis>
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funnel-shaped, inserted between anther sac, margin raised on both ends, ciliate;
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<emphasis bold="true" italics="true" pageId="0" pageNumber="155">ovary</emphasis>
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oblong, 3-4 mm long, pubescent, 3-locular.
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</paragraph>
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<caption doi="10.3897/phytokeys.138.39217.figure1" httpUri="https://binary.pensoft.net/fig/370274" pageId="0" pageNumber="155" start="Figure 1" startId="F1">
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<paragraph pageId="0" pageNumber="155">
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<emphasis bold="true" pageId="0" pageNumber="155">Figure 1.</emphasis>
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<taxonomicName authorityName="Y. H. Tan & H. B. Ding" authorityYear="2020" class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus odontochilus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="odontochilus">
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<emphasis italics="true" pageId="0" pageNumber="155">Monolophus odontochilus</emphasis>
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</taxonomicName>
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Y.H. Tan & H.B. Ding, sp. nov.
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<emphasis bold="true" pageId="0" pageNumber="155">A</emphasis>
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habitat
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<emphasis bold="true" pageId="0" pageNumber="155">B</emphasis>
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ligule
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<emphasis bold="true" pageId="0" pageNumber="155">C</emphasis>
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leaf blade abaxially
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<emphasis bold="true" pageId="0" pageNumber="155">D</emphasis>
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habit
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<emphasis bold="true" pageId="0" pageNumber="155">E</emphasis>
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single leaf (adaxially and abaxially)
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<emphasis bold="true" pageId="0" pageNumber="155">F</emphasis>
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flower (side view)
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<emphasis bold="true" pageId="0" pageNumber="155">G</emphasis>
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flower (front view)
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<emphasis bold="true" pageId="0" pageNumber="155">H</emphasis>
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anther with stigma and crest (front and back view)
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<emphasis bold="true" pageId="0" pageNumber="155">I</emphasis>
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stigma
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<emphasis bold="true" pageId="0" pageNumber="155">J</emphasis>
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dorsal corolla lobe
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<emphasis bold="true" pageId="0" pageNumber="155">K</emphasis>
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lateral corolla lobes
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<emphasis bold="true" pageId="0" pageNumber="155">L</emphasis>
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bracts
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<emphasis bold="true" pageId="0" pageNumber="155">M</emphasis>
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bracteoles and young flower
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<emphasis bold="true" pageId="0" pageNumber="155">N</emphasis>
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calyx
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<emphasis bold="true" pageId="0" pageNumber="155">O</emphasis>
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ovary
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<emphasis bold="true" pageId="0" pageNumber="155">P</emphasis>
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labellum and floral tube
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<emphasis bold="true" pageId="0" pageNumber="155">Q</emphasis>
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lateral staminodes
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<emphasis bold="true" pageId="0" pageNumber="155">R</emphasis>
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stamen and stigma
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<emphasis bold="true" pageId="0" pageNumber="155">S</emphasis>
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ovary with style. Photographed by H.B.Ding
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="phenology">
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<paragraph pageId="0" pageNumber="155">Phenology.</paragraph>
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<paragraph pageId="0" pageNumber="155">Flowering in May to June. Fruit not seen.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="etymology">
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<paragraph pageId="0" pageNumber="155">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="155">
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The species epithet '
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<emphasis italics="true" pageId="0" pageNumber="155">odontochilus</emphasis>
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' refers to the crenate labellum.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="distribution">
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<paragraph pageId="0" pageNumber="155">Distribution and habitat.</paragraph>
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<paragraph pageId="0" pageNumber="155">
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<taxonomicName authorityName="Y. H. Tan & H. B. Ding" authorityYear="2020" class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus odontochilus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="odontochilus">
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<emphasis italics="true" pageId="0" pageNumber="155">Monolophus odontochilus</emphasis>
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</taxonomicName>
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is endemic to Kachin State, Northern Myanmar, only known from its type locality, Gathu Village, Putao District. It grows in humid environments or along streams of tropical rain forest at an elevation of 550-750 m.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="conservation status">
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<paragraph pageId="0" pageNumber="155">Conservation status.</paragraph>
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<paragraph pageId="0" pageNumber="155">
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This new species appears to be restricted to a very moist habitat in Gathu Village, Putao District, Kachin State, Northern Myanmar. According to our observations in the field, the two known populations are composed of about 50 mature individuals in each. Overall, however, the species has been deemed to be Data Deficient (DD) following IUCN Red list Categories and Criteria (
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<bibRefCitation author="IUCN" journalOrPublisher="Shokubutsu Kenkyu Zasshi" pageId="0" pageNumber="155" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B24" refString="IUCN, 2017. Guidelines for using the IUCN red list categories and criteria. Version 13. Prepared by the Standards and Petitions Subcommittee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf" title="Guidelines for using the IUCN red list categories and criteria. Version 13. Prepared by the Standards and Petitions Subcommittee." url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2017">IUCN 2017</bibRefCitation>
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). Further field surveys in northern Myanmar are needed to gain more information on its distribution.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="155" type="affinities">
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<paragraph pageId="0" pageNumber="155">Affinities.</paragraph>
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<paragraph pageId="0" pageNumber="155">
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<taxonomicName authorityName="Y. H. Tan & H. B. Ding" authorityYear="2020" class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus odontochilus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="odontochilus">
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<emphasis italics="true" pageId="0" pageNumber="155">Monolophus odontochilus</emphasis>
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</taxonomicName>
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is morphologically similar to
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<taxonomicName lsidName="M. linearis" pageId="0" pageNumber="155" rank="species" species="linearis">
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<emphasis italics="true" pageId="0" pageNumber="155">M. linearis</emphasis>
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</taxonomicName>
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(Wall.) Wall. (
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<bibRefCitation author="Wallich, N" editor="Roxburgh, W" journalOrPublisher="Mission Press, Serampore" pageId="0" pageNumber="155" pagination="19 - 20" refId="B29" refString="Wallich, N, 1820. Kaempferia secunda, Kaempferia linearis. In: Roxburgh, W, Ed., Flora Indica 1. Mission Press, Serampore: 19 - 20" title="Kaempferia secunda, Kaempferia linearis." volumeTitle="Flora Indica 1." year="1820">Wallich 1820</bibRefCitation>
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,
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<bibRefCitation author="Wallich, N" journalOrPublisher="Mission Press, Serampore" pageId="0" pageNumber="155" refId="B30" refString="Wallich, N, 1832. A numerical list of dried specimens of plants in the East India Company's Museum, collected under the superintendence of Dr. Wallich, of the Company's Botanic Garden at Calcutta (the Wallich Catalogue). London, 6591-6593." title="A numerical list of dried specimens of plants in the East India Company's Museum, collected under the superintendence of Dr. Wallich, of the Company's Botanic Garden at Calcutta (the Wallich Catalogue). London, 6591 - 6593." year="1832">1832</bibRefCitation>
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) in having white flowers with a yellow blotch at the base of the labellum. After comparison with specimens and descriptions in literature (
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<bibRefCitation author="Chaturvedi, SK" journalOrPublisher="Pleione" pageId="0" pageNumber="155" pagination="420 - 424" refId="B3" refString="Chaturvedi, SK, Sinha, BK, Dey, S, Roy, DK, Pandey, S, 2012. Notes on Caulokaempferia linearis (Wallich) K. Larsen - a rare ginger of India. Pleione 6 (2): 420 - 424" title="Notes on Caulokaempferia linearis (Wallich) K. Larsen - a rare ginger of India." volume="6" year="2012">Chaturvedi et al. 2012</bibRefCitation>
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;
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<bibRefCitation author="Roy, DK" journalOrPublisher="NeBio" pageId="0" pageNumber="155" pagination="1 - 6" refId="B22" refString="Roy, DK, Barbhuiya, HA, 2013. Taxonomy of Caulokaempferia (Zingiberaceae) in India. NeBio 4 (6): 1 - 6" title="Taxonomy of Caulokaempferia (Zingiberaceae) in India." volume="4" year="2013">Roy and Barbhuiya 2013</bibRefCitation>
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), it was found that
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<taxonomicName lsidName="M. odontochilus" pageId="0" pageNumber="155" rank="species" species="odontochilus">
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<emphasis italics="true" pageId="0" pageNumber="155">M. odontochilus</emphasis>
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</taxonomicName>
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can be distinguished from
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<taxonomicName lsidName="M. linearis" pageId="0" pageNumber="155" rank="species" species="linearis">
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<emphasis italics="true" pageId="0" pageNumber="155">M. linearis</emphasis>
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</taxonomicName>
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, even on the basis of its vegetative characters: e.g.
|
||
<taxonomicName authorityName="Y. H. Tan & H. B. Ding" authorityYear="2020" class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus odontochilus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="odontochilus">
|
||
<emphasis italics="true" pageId="0" pageNumber="155">Monolophus odontochilus</emphasis>
|
||
</taxonomicName>
|
||
has unequally bilobed ligule (vs. entire ligule, respectively), longer calyx (1.3-1.4 cm vs. 0.8-0.9 cm, respectively), bigger lateral staminodes (1.5-1.6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.9-1.0 cm vs. ca. 1.0
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.7 cm, respectively).
|
||
<taxonomicName authorityName="Y. H. Tan & H. B. Ding" authorityYear="2020" class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus odontochilus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="odontochilus">
|
||
<emphasis italics="true" pageId="0" pageNumber="155">Monolophus odontochilus</emphasis>
|
||
</taxonomicName>
|
||
, furthermore, differs in having elliptic to oblong leaves (10.2-14
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-5 cm), margin crenate labellum (non-trilobed) and purely white corolla.
|
||
<taxonomicName genus="Monolophu" lsidName="Monolophu linearis" pageId="0" pageNumber="155" rank="species" species="linearis">
|
||
<emphasis italics="true" pageId="0" pageNumber="155">Monolophu linearis</emphasis>
|
||
</taxonomicName>
|
||
has linear lanceolate leaves (1.5-6.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.5-1 cm), trilobed labellum and pinkish white corolla. A diagnostic key to the new species of
|
||
<taxonomicName class="Liliopsida" family="Zingiberaceae" genus="Monolophus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Monolophus" order="Zingiberales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="155">Monolophus</emphasis>
|
||
</taxonomicName>
|
||
and its closely related species is provided.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |