198 lines
16 KiB
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198 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.138.38995" ID-PMC="PMC6968978" ID-Pensoft-Pub="1314-2003-138-17" ID-Pensoft-UUID="0AC1866CF1395681A46B40634C6DF090" ID-PubMed="31988602" ModsDocID="1314-2003-138-17" checkinTime="1578758007909" checkinUser="pensoft" docAuthor="Yang, Bin, Zhu, Ren-Bin, Ding, Hong-Bo, Bouamanivong, Somsanith & Tan, Yun-Hong" docDate="2020" docId="56536A30729B51A79331CB3A06E284C4" docLanguage="en" docName="PhytoKeys 138: 17-25" docOrigin="PhytoKeys 138" docSource="http://dx.doi.org/10.3897/phytokeys.138.38995" docTitle="Goniothalamus saccopetaloides Y. H. Tan & Bin Yang 2020, sp. nov." docType="treatment" docVersion="5" id="0AC1866CF1395681A46B40634C6DF090" lastPageNumber="17" masterDocId="0AC1866CF1395681A46B40634C6DF090" masterDocTitle="A new species and two new records of Goniothalamus (Annonaceae) from Lao PDR" masterLastPageNumber="25" masterPageNumber="17" pageNumber="17" updateTime="1668139609693" 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 records of Goniothalamus (Annonaceae) from Lao PDR</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>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>Zhu, Ren-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>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>Bouamanivong, Somsanith</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>17</mods:start>
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<mods:end>25</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.138.38995</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.138.38995</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-138-17</mods:identifier>
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<mods:identifier type="Pensoft-UUID">0AC1866CF1395681A46B40634C6DF090</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="161671996" LSID="urn:lsid:plazi:treatment:56536A30729B51A79331CB3A06E284C4" httpUri="http://treatment.plazi.org/id/56536A30729B51A79331CB3A06E284C4" lastPageNumber="17" pageId="0" pageNumber="17">
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<subSubSection pageId="0" pageNumber="17" type="nomenclature">
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<paragraph pageId="0" pageNumber="17">
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<taxonomicName LSID="56536A30-729B-51A7-9331-CB3A06E284C4" authority="Y. H. Tan & Bin Yang" authorityName="Y. H. Tan & Bin Yang" authorityYear="2020" class="Magnoliopsida" family="Annonaceae" genus="Goniothalamus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Goniothalamus saccopetaloides" order="Magnoliales" pageId="0" pageNumber="17" phylum="Tracheophyta" rank="species" species="saccopetaloides" status="sp. nov.">Goniothalamus saccopetaloides Y.H.Tan & Bin Yang</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="17">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Goniothalamus saccopetaloides Y. H. Tan & Bin Yang, sp. nov. A habit B leafy branch C flowers on main trunk D fruits on main trunk E leaves (adaxial and abaxial surface) F flowers G-H dissected flowers I carpels J longitudinally dissected monocarp K seeds. Photographed by R. B. Zhu and B. Yang." figureDoi="10.3897/phytokeys..38995.figure1" httpUri="https://binary.pensoft.net/fig/370038" pageId="0" pageNumber="17">Fig. 1</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="diagnosis">
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<paragraph pageId="0" pageNumber="17">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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<taxonomicName authorityName="Y. H. Tan & Bin Yang" authorityYear="2020" class="Magnoliopsida" family="Annonaceae" genus="Goniothalamus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Goniothalamus saccopetaloides" order="Magnoliales" pageId="0" pageNumber="17" phylum="Tracheophyta" rank="species" species="saccopetaloides">
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<emphasis italics="true" pageId="0" pageNumber="17">Goniothalamus saccopetaloides</emphasis>
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</taxonomicName>
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is morphologically similar to
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<taxonomicName lsidName="G. yunnanensis" pageId="0" pageNumber="17" rank="species" species="yunnanensis">
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<emphasis italics="true" pageId="0" pageNumber="17">G. yunnanensis</emphasis>
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</taxonomicName>
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W.T. Wang with elliptic-oblong to oblong leaf blades and broadly lanceolate, pinkish orange to reddish brown outer petals, but easily distinguished by having almost fleshy, involute, saccate outer petals, subglobose and single seeded monocarps.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="materials_examined">
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<paragraph pageId="0" pageNumber="17">Type.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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Lao PDR. Specific location unknown. Voucher from a cultivated plant at the Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 2 May 2019,
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<emphasis italics="true" pageId="0" pageNumber="17">B. Yang</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="17">XTBG-0054</emphasis>
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(holotype, HITBC!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="description">
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<paragraph pageId="0" pageNumber="17">Description.</paragraph>
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<paragraph pageId="0" pageNumber="17">Shrub to small tree, to 3 m tall. Young branches glabrous. Leaf laminas 15.5-27.8 cm long, 4.5-8.2 cm wide, length/width ratio ca. 3.4, elliptic-oblong to oblong, apex acuminate, base cuneate to attenuate, papyraceous, glabrous abaxially and adaxially; midrib glabrous and (strong) prominent abaxially, glabrous and impressed adaxially; secondary veins 13-18 pairs, (slightly) impressed adaxially; tertiary veins percurrent, distinct; petioles 5-12 mm long, 2-3 mm in diameter, glabrous. Flowers 1-7, often on the main trunk (cauliflory) and on older branches (ramiflory), pendents; flowering pedicels 2-5 mm long, sparsely hairy; pedicel bracts 3-6, 1-2 mm long. Sepals 5-6 mm long, 5-7 mm wide, basally connate, apex acuminate, broad ovate, puberulous abaxially, glabrous adaxially, greenish-yellow, venation longitudinal slightly conspicuous adaxially, indistinct abaxially. Outer petals 1.4-2.7 cm long, 0.7-1.2 mm wide, length/width ratio 1.6-3.0, almost fleshy, involute, saccate, elliptic lanceolate to broadly lanceolate, sparsely puberulous abaxially, subglabrous adaxially, yellowish green in young stage, pinkish orange to reddish brown in mature stage, venation slightly distinct adaxially, occasionally slightly distinct abaxially. Inner petals 6.5-12 mm long, 5-10 mm wide, length/width ratio 1.1-2.2, broadly ovate to obovate, sparsely puberulous abaxially, pubescent adaxially, yellowish green in young stage, pinkish orange to reddish brown in mature stage, base attenuate to a 2-3 mm claw. Stamens ca. 80 per flower, 1.2-1.5 mm long, 0.6-0.7 mm wide; connectives truncate. Carpels 18-22 per flower, ovary 1.5-2 mm long, light green, with white hairs; stigma and style 2-3 mm long, glabrous. Immature fruits green, with small white dots, mature fruits orange to red; fruiting pedicels 3-5 mm long, 1.5-2 mm in diameter, subglabrous. Monocarps one seeded, 12-13 mm long, 9-11 mm wide, length/width ratio 1.2-1.3, subglobose to ellipsoid, base and apex rounded, smooth, subglabrous, glossy, pericarp medium-thick, ca. 1.5 mm thick, stipes subsessile to 1.5 mm long, ca. 2 mm in diameter, glabrous. Seeds 9-10 mm long, ca. 7 mm wide, length/width ratio 1.3-1.4, ellipsoids, testa slightly rugose, dark brown to black brown, aril orange.</paragraph>
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<caption doi="10.3897/phytokeys..38995.figure1" httpUri="https://binary.pensoft.net/fig/370038" pageId="0" pageNumber="17" start="Figure 1" startId="F1">
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<paragraph pageId="0" pageNumber="17">
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<emphasis bold="true" pageId="0" pageNumber="17">Figure 1.</emphasis>
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<taxonomicName authorityName="Y. H. Tan & Bin Yang" authorityYear="2020" class="Magnoliopsida" family="Annonaceae" genus="Goniothalamus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Goniothalamus saccopetaloides" order="Magnoliales" pageId="0" pageNumber="17" phylum="Tracheophyta" rank="species" species="saccopetaloides">
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<emphasis italics="true" pageId="0" pageNumber="17">Goniothalamus saccopetaloides</emphasis>
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</taxonomicName>
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Y.H.Tan & Bin Yang, sp. nov.
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<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
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habit
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<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
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leafy branch
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<emphasis bold="true" pageId="0" pageNumber="17">C</emphasis>
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flowers on main trunk
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<emphasis bold="true" pageId="0" pageNumber="17">D</emphasis>
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fruits on main trunk
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<emphasis bold="true" pageId="0" pageNumber="17">E</emphasis>
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leaves (adaxial and abaxial surface)
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<emphasis bold="true" pageId="0" pageNumber="17">F</emphasis>
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flowers
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<emphasis bold="true" pageId="0" pageNumber="17">G-H</emphasis>
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dissected flowers
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<emphasis bold="true" pageId="0" pageNumber="17">I</emphasis>
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carpels
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<emphasis bold="true" pageId="0" pageNumber="17">J</emphasis>
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longitudinally dissected monocarp
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<emphasis bold="true" pageId="0" pageNumber="17">K</emphasis>
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seeds. Photographed by R.B. Zhu and B. Yang.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="etymology">
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<paragraph pageId="0" pageNumber="17">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="17">The new species is named after its saccate and almost fleshy outer petals.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="phenology">
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<paragraph pageId="0" pageNumber="17">Phenology.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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<taxonomicName authorityName="Y. H. Tan & Bin Yang" authorityYear="2020" class="Magnoliopsida" family="Annonaceae" genus="Goniothalamus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Goniothalamus saccopetaloides" order="Magnoliales" pageId="0" pageNumber="17" phylum="Tracheophyta" rank="species" species="saccopetaloides">
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<emphasis italics="true" pageId="0" pageNumber="17">Goniothalamus saccopetaloides</emphasis>
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</taxonomicName>
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has been observed in flowers from the end of March to May and in fruits from July to September.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="distribution">
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<paragraph pageId="0" pageNumber="17">Distribution and habitat.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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<taxonomicName lsidName="G. saccopetaloides" pageId="0" pageNumber="17" rank="species" species="saccopetaloides">
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<emphasis italics="true" pageId="0" pageNumber="17">G. saccopetaloides</emphasis>
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</taxonomicName>
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was originally distributed in Laos; the exact location and its wild habitat remains unknown. Additional collections in the future may help to clarify its full distribution.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="conservation status">
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<paragraph pageId="0" pageNumber="17">Conservation status.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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Due to insufficient field surveys so far, very limited details about its natural distribution and population status are currently known. Further investigation is required to determine more distribution sites and conservation status of the new species; at this moment we consider it as data deficient (DD) according to the IUCN Red List Categories (
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<bibRefCitation author="IUCN" pageId="0" pageNumber="17" refId="B1" 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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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="additional specimen examined">
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<paragraph pageId="0" pageNumber="17">Additional specimen examined</paragraph>
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<paragraph pageId="0" pageNumber="17">
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(paratype). Lao PDR. Specific location unknown. Voucher from the cultivated plants at the Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 2 May 2019,
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<emphasis italics="true" pageId="0" pageNumber="17">B. Yang</emphasis>
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,
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<emphasis italics="true" pageId="0" pageNumber="17">XTBG-0055</emphasis>
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(HITBC!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="notes">
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<paragraph pageId="0" pageNumber="17">Notes.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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<taxonomicName authorityName="Y. H. Tan & Bin Yang" authorityYear="2020" class="Magnoliopsida" family="Annonaceae" genus="Goniothalamus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Goniothalamus saccopetaloides" order="Magnoliales" pageId="0" pageNumber="17" phylum="Tracheophyta" rank="species" species="saccopetaloides">
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<emphasis italics="true" pageId="0" pageNumber="17">Goniothalamus saccopetaloides</emphasis>
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</taxonomicName>
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is morphologically similar to
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<taxonomicName lsidName="G. yunnanensis" pageId="0" pageNumber="17" rank="species" species="yunnanensis">
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<emphasis italics="true" pageId="0" pageNumber="17">G. yunnanensis</emphasis>
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</taxonomicName>
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; however, in addition to the description in the diagnosis, the two species can be easily distinguished by other characters.
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<taxonomicName authorityName="Y. H. Tan & Bin Yang" authorityYear="2020" class="Magnoliopsida" family="Annonaceae" genus="Goniothalamus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Goniothalamus saccopetaloides" order="Magnoliales" pageId="0" pageNumber="17" phylum="Tracheophyta" rank="species" species="saccopetaloides">
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<emphasis italics="true" pageId="0" pageNumber="17">Goniothalamus saccopetaloides</emphasis>
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</taxonomicName>
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has 1 to 7 flowers, often on the main trunk (cauliflory) and on older branches (ramiflory), scarcely on young growth, whereas
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<taxonomicName lsidName="G. yunnanensis" pageId="0" pageNumber="17" rank="species" species="yunnanensis">
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<emphasis italics="true" pageId="0" pageNumber="17">G. yunnanensis</emphasis>
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</taxonomicName>
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has 1 to 2 flowers, axillary, often on young growth, sometimes from leafless nodes (
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<bibRefCitation author="Li, BT" editor="Wu, ZH" journalOrPublisher="19). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="17" pagination="684 - 687" refId="B3" refString="Li, BT, Gilbert, MG, Schatz, G, 2011. Goniothalamus. In: Wu, ZH, Raven, PH, Hong, DY, Eds., Flora of China (Vol. 19). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis: 684 - 687" title="Goniothalamus." volumeTitle="Flora of China (Vol." year="2011">Li et al. 2011</bibRefCitation>
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). Moreover,
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<taxonomicName lsidName="G. saccopetaloides" pageId="0" pageNumber="17" rank="species" species="saccopetaloides">
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<emphasis italics="true" pageId="0" pageNumber="17">G. saccopetaloides</emphasis>
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</taxonomicName>
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has one ovule per carpel, subglobose monocarps and seeds with rounded apices, and
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<taxonomicName lsidName="G. yunnanensis" pageId="0" pageNumber="17" rank="species" species="yunnanensis">
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<emphasis italics="true" pageId="0" pageNumber="17">G. yunnanensis</emphasis>
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</taxonomicName>
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has 2 ovules per carpel, ellipsoid monocarps and seeds with acute apices (
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<bibRefCitation author="Li, BT" editor="Wu, ZH" journalOrPublisher="19). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="17" pagination="684 - 687" refId="B3" refString="Li, BT, Gilbert, MG, Schatz, G, 2011. Goniothalamus. In: Wu, ZH, Raven, PH, Hong, DY, Eds., Flora of China (Vol. 19). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis: 684 - 687" title="Goniothalamus." volumeTitle="Flora of China (Vol." year="2011">Li et al. 2011</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |