299 lines
26 KiB
XML
299 lines
26 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.48.6713" ID-PMC="PMC4408731" ID-Pensoft-Pub="1314-2003-48-43" ID-Pensoft-UUID="A620FFB13E5B944CC828FFA600132574" ID-PubMed="25931972" ID-Zenodo-Dep="576290" ModsDocID="1314-2003-48-43" checkinTime="1451251551270" checkinUser="pensoft" docAuthor="Echternacht, Livia & Trovo, Marcelo" docDate="2015" docId="682002FBDB315C17A5C6BA64018241A1" docLanguage="en" docName="PhytoKeys 48: 43-49" docOrigin="PhytoKeys 48" docPubDate="2015-04-15" docSource="http://dx.doi.org/10.3897/phytokeys.48.6713" docTitle="Paepalanthus serpens Echtern. & Trovo 2015, sp. nov." docType="treatment" docVersion="3" id="A620FFB13E5B944CC828FFA600132574" lastPageNumber="46" masterDocId="A620FFB13E5B944CC828FFA600132574" masterDocTitle="Paepalanthus serpens, a new microendemic species of Eriocaulaceae from the Espinhaco Range, Minas Gerais, Brazil" masterLastPageNumber="49" masterPageNumber="43" pageNumber="43" updateTime="1668141341867" 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>Paepalanthus serpens, a new microendemic species of Eriocaulaceae from the Espinhaco Range, Minas Gerais, Brazil</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>Echternacht, Livia</mods:namePart>
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<mods:affiliation>Instituto de Biologia, Universidade Federal de Uberlandia, Campus Umuarama, Rua Ceara s / n Bloco 2 D, CEP 38400 - 902, Uberlandia, MG, Brazil</mods:affiliation>
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<mods:nameIdentifier type="email">livia.echter@gmail.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>Trovo, Marcelo</mods:namePart>
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<mods:affiliation>Departamento de Botanica, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373, CEP 21941 - 590, Rio de Janeiro, RJ, Brazil</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>2015</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2015-04-15</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>48</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>43</mods:start>
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<mods:end>49</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.48.6713</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.48.6713</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-48-43</mods:identifier>
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<mods:identifier type="Pensoft-UUID">A620FFB13E5B944CC828FFA600132574</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576290</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="182228325" LSID="urn:lsid:plazi:treatment:682002FBDB315C17A5C6BA64018241A1" httpUri="http://treatment.plazi.org/id/682002FBDB315C17A5C6BA64018241A1" lastPageId="3" lastPageNumber="46" pageId="0" pageNumber="43">
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<subSubSection pageId="0" pageNumber="43" type="nomenclature">
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<paragraph pageId="0" pageNumber="43">
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<taxonomicName LSID="682002FB-DB31-5C17-A5C6-BA64018241A1" authority="Echtern. & Trovó" authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="0" pageNumber="43" phylum="Tracheophyta" rank="species" species="serpens" status="sp. nov.">
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Paepalanthus serpens Echtern. &
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<normalizedToken originalValue="Trovó">Trovo</normalizedToken>
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</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="43">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Illustration of Paepalanthus serpens Echtern. & Trovo: A Spathe apex B Involucral bract abaxial surface C Floral bract abaxial surface D Staminate flower E Pistillate flower with floral bract F Staminate flower with pedicel and sepals removed, at early anthesis G Gynoecium (Drawn from the holotype by L. Echternacht)." pageId="0" pageNumber="43">Figures 1</figureCitation>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Paepalanthus serpens Echtern. & Trovo: A Habit B Capitula C Capitulum with yellowish hairs in a dried individual D Habit showing the elongate, thick and creeping stem, with erect apex E Habitat (Photos by L. Echternacht)." pageId="0" pageNumber="43">, 2</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="43" type="type">
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<paragraph pageId="0" pageNumber="43">Type.</paragraph>
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<paragraph pageId="0" pageNumber="43">
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Brazil. Minas Gerais, Santana do Pirapama, Reserva Particular do
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<normalizedToken originalValue="Patrimônio">Patrimonio</normalizedToken>
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Natural (RPPN) Toucan
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<normalizedToken originalValue="Cipó">Cipo</normalizedToken>
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, Trilha da
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<normalizedToken originalValue="Captação">Captacao</normalizedToken>
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,
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<geoCoordinate degrees="19" direction="south" minutes="00" orientation="latitude" precision="1" seconds="13.2" value="-19.003666">19°00'13.2"S</geoCoordinate>
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,
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<geoCoordinate degrees="43" direction="west" minutes="45" orientation="longitude" precision="1" seconds="23.3" value="-43.756474">43°45'23.3"W</geoCoordinate>
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, SAD69, 927 m, 27 Jul 2013,
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<emphasis italics="true" pageId="0" pageNumber="43">
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L. Echternacht, T. V. Bastos, M. Stallegger, C. A. Ferreira
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<normalizedToken originalValue="Júnior">Junior</normalizedToken>
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2316
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</emphasis>
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(holotype HUFU; isotypes BHCB, NY, P, R, SPF)
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="43" type="diagnosis">
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<paragraph pageId="0" pageNumber="43">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="43">
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<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="0" pageNumber="43" phylum="Tracheophyta" rank="species" species="serpens">
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<emphasis italics="true" pageId="0" pageNumber="43">Paepalanthus serpens</emphasis>
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</taxonomicName>
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differs from the other species of the genus by its elongated, lignescent stem, thickened by the marcescent sheaths of the linear leaves, which are disposed in rosette at the stem apex, scapes equalling the leaf length and capitula with straw-coloured involucral bracts.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="2" lastPageNumber="45" pageId="0" pageNumber="43" type="description">
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<paragraph pageId="0" pageNumber="43">Description.</paragraph>
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<paragraph lastPageId="2" lastPageNumber="45" pageId="0" pageNumber="43">
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Perennial herbs. Stem elongate, lignescent, with a thick cover of marcescent leaf sheaths, ca. 1.0-30.0 cm long
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<normalizedToken originalValue="×">x</normalizedToken>
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1.0-3.5 cm wide (without the leaf sheath coat), unbranched, pilose, with simple, filamentous trichomes ca. 1.0 cm long. Leaves arranged in rosette at the stem apex, flat to semi-terete, linear, chartaceous, 5.0-10.0 cm long
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<normalizedToken originalValue="×">x</normalizedToken>
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0.3-1.5 mm wide, green, pubescent to glabrescent on both surfaces, trichomes ca. 0.1-0.2 mm long, simple, filamentous, cream to
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<pageBreakToken pageId="1" pageNumber="44" start="start">ferruginous</pageBreakToken>
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, apex acute. Spathes appressed to scapes, membranaceous, ca. 0.6-1.0 cm long, lamina glabrescent, oblique opening, margins lacerate, ciliate. Scapes free, ca. 4-150 per plant, ca. 6.0-10.0 cm long, filiform, pilose as the leaves. Capitula 3.0-7.0 mm diam.
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<normalizedToken originalValue="×">x</normalizedToken>
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3.0-4.0 mm high. Involucral bracts in 4-6 series, ovate-triangular, ca. 2.0-3.0 mm long
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<normalizedToken originalValue="×">x</normalizedToken>
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1.0-2.0 mm wide, straw-coloured, darker on the margins, pilose on abaxial surface, mainly in the upper back, ciliate, tufted at apex, trichomes cream, occasionally yellowish at the apex, glabrous on adaxial surface, apex acute to obtuse. Floral bracts lanceolate, membranaceous, ca. 2 mm long, cream at the base, light-brown at the apex, pilose on abaxial surface, ciliate on the margins, cilia shortening toward the obtuse and tufted apex, filamentous trichomes ca. 7-9 cells long, cream, occasionally the distal trichomes yellowish at the apex, glabrous on adaxial surface, apex obtuse. Flowers 3-merous, ca. 60 per capitulum. Staminate flowers ca. 2.0-2.5 mm long; pedicel ca. 0.3 mm long, densely pilose, with filamentous trichomes ca. 1.5 mm long; sepals free, oblanceolate, membranaceous, ca. 1.5-2.0 mm long, cream to straw-coloured, darker at the obtuse apex, pilose as the floral bracts; corolla tubular, apex with tree acute lobes, soon involute, membranaceous, ca. 1.5-2.0 mm long, hyaline, glabrous; stamens ca. 2 mm long, filaments adnate to corolla on its lower third, anthers cream; pistillodes 3, ca. 0.8
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<pageBreakToken pageId="2" pageNumber="45" start="start">mm</pageBreakToken>
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long, fimbriate at the apex. Pistillate flowers ca. 2.0-3.0 mm long, pedicel ca. 0.3 mm long, densely pilose, with filamentous trichomes ca. 1.5 mm long; sepals free, oblanceolate, membranaceous, thickening during fruit maturation, hygroscopic, ca. 1.5-2.0 mm long, cream to light-brown, darker at the upper part, pilose as the floral bracts, apex cuspidate; petals free, oblanceolate, membranaceous, ca. 1.5-2.5 mm long, cream to light-brown at the apex, ciliate, tufted at the truncate apex; staminodes 3, scale-like; gynoecium ca. 2.0-3.0 mm long, stigmatic branches ca. 1.5 mm long, bifid, twice longer than the papillose nectariferous branches. Fruit a loculicidal capsule.
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</paragraph>
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<caption pageId="2" pageNumber="45" start="Figure 1" startId="F1">
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<paragraph pageId="2" pageNumber="45">
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<emphasis bold="true" pageId="2" pageNumber="45">Figure 1.</emphasis>
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Illustration of
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<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="2" pageNumber="45" phylum="Tracheophyta" rank="species" species="serpens">
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<emphasis italics="true" pageId="2" pageNumber="45">Paepalanthus serpens</emphasis>
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</taxonomicName>
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Echtern. &
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<normalizedToken originalValue="Trovó">Trovo</normalizedToken>
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:
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<emphasis bold="true" pageId="2" pageNumber="45">A</emphasis>
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Spathe apex
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<emphasis bold="true" pageId="2" pageNumber="45">B</emphasis>
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Involucral bract abaxial surface
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<emphasis bold="true" pageId="2" pageNumber="45">C</emphasis>
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Floral bract abaxial surface
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<emphasis bold="true" pageId="2" pageNumber="45">D</emphasis>
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Staminate flower
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<emphasis bold="true" pageId="2" pageNumber="45">E</emphasis>
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Pistillate flower with floral bract
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<emphasis bold="true" pageId="2" pageNumber="45">F</emphasis>
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Staminate flower with pedicel and sepals removed, at early anthesis
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<emphasis bold="true" pageId="2" pageNumber="45">G</emphasis>
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Gynoecium (Drawn from the holotype by L. Echternacht).
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</paragraph>
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</caption>
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<caption pageId="2" pageNumber="45" start="Figure 2" startId="F2">
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<paragraph pageId="2" pageNumber="45">
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<emphasis bold="true" pageId="2" pageNumber="45">Figure 2.</emphasis>
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<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="2" pageNumber="45" phylum="Tracheophyta" rank="species" species="serpens">
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<emphasis italics="true" pageId="2" pageNumber="45">Paepalanthus serpens</emphasis>
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</taxonomicName>
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Echtern. &
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<normalizedToken originalValue="Trovó">Trovo</normalizedToken>
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:
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<emphasis bold="true" pageId="2" pageNumber="45">A</emphasis>
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Habit
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<emphasis bold="true" pageId="2" pageNumber="45">B</emphasis>
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Capitula
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<emphasis bold="true" pageId="2" pageNumber="45">C</emphasis>
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Capitulum with yellowish hairs in a dried individual
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<emphasis bold="true" pageId="2" pageNumber="45">D</emphasis>
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Habit showing the elongate, thick and creeping stem, with erect apex
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<emphasis bold="true" pageId="2" pageNumber="45">E</emphasis>
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Habitat (Photos by L. Echternacht).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="45" type="additional specimens examined">
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<paragraph pageId="2" pageNumber="45">Additional specimens examined.</paragraph>
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<paragraph pageId="2" pageNumber="45">
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Brazil. Minas Gerais: Santana do Pirapama, Trilha da
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<normalizedToken originalValue="Captação">Captacao</normalizedToken>
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,
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<geoCoordinate degrees="19" direction="south" minutes="00" orientation="latitude" precision="1" seconds="30.7" value="-19.008528">19°00'30.7"S</geoCoordinate>
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,
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<geoCoordinate degrees="43" direction="west" minutes="45" orientation="longitude" precision="1" seconds="53.1" value="-43.76475">43°45'53.1"W</geoCoordinate>
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, 840 m, 8 Sep 2011,
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<emphasis italics="true" pageId="2" pageNumber="45">
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C. A. Ferreira
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<normalizedToken originalValue="Júnior">Junior</normalizedToken>
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s.n.
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</emphasis>
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(BHZB 8198); same locality,
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<geoCoordinate degrees="19" direction="south" minutes="00.52" orientation="latitude" precision="9" value="-19.008667">19°00.52'S</geoCoordinate>
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, 43°75.85'W DD, 854 m, 19 Mar 2011,
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<emphasis italics="true" pageId="2" pageNumber="45">W. Milliken et al. 4296</emphasis>
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(SPF, K).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="45" type="distribution and ecology">
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<paragraph pageId="2" pageNumber="45">Distribution and ecology.</paragraph>
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<paragraph pageId="2" pageNumber="45">
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<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="2" pageNumber="45" phylum="Tracheophyta" rank="species" species="serpens">
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<emphasis italics="true" pageId="2" pageNumber="45">Paepalanthus serpens</emphasis>
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</taxonomicName>
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is known from one population at the western slopes of the Serra do
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<normalizedToken originalValue="Cipó">Cipo</normalizedToken>
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, southern
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<normalizedToken originalValue="Espinhaço">Espinhaco</normalizedToken>
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Range, in Minas Gerais state. The habitat consists of a
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<emphasis italics="true" pageId="2" pageNumber="45">campo rupestre</emphasis>
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within the Cerrado biome. The species grows on gravelly soils of quartzite origin, on open areas, among herbaceous to shrubby vegetation. The encountered population consists of around 300 individuals.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="45" type="phenology">
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<paragraph pageId="2" pageNumber="45">Phenology.</paragraph>
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<paragraph pageId="2" pageNumber="45">
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Individuals flower during the dry season, starting to develop the inflorescences in March and dispersing seeds until October. The sepals of the pistillate flowers are thickened and hygroscopic when fruits are mature, becoming revolute upon drying, probably favouring seeds dispersal through a catapult mechanism (further description of this dispersal mechanisms is provided by
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<bibRefCitation author="Trovo, M" journalOrPublisher="Feddes Repertorium" pageId="3" pageNumber="46" pagination="456 - 464" publicationUrl="10.1002/fedr.201200003" refId="B7" refString="Trovo, M, Stuetzel, T, 2012. Diaspores in Eriocaulaceae: morphology, mechanisms, and implications. Feddes Repertorium 122: 456 - 464, DOI: 10.1002/fedr.201200003" title="Diaspores in Eriocaulaceae: morphology, mechanisms, and implications." url="10.1002/fedr.201200003" volume="122" year="2012">
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<normalizedToken originalValue="Trovó">Trovo</normalizedToken>
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and
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<normalizedToken originalValue="Stützel">Stuetzel</normalizedToken>
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2012
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</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="45" type="conservation status">
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<paragraph pageId="2" pageNumber="45">Conservation status.</paragraph>
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<paragraph pageId="2" pageNumber="45">
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The species is considered critically endangered according to criteria B1a and B2a of the IUCN (2011). However, it occurs inside a conservation unit (RPPN Toucan
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<normalizedToken originalValue="Cipó">Cipo</normalizedToken>
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) and is conserved
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<emphasis italics="true" pageId="2" pageNumber="45">ex situ</emphasis>
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at the Belo Horizonte Botanical Garden (
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<normalizedToken originalValue="Fundação">Fundacao</normalizedToken>
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<normalizedToken originalValue="Zoo-Botânica">Zoo-Botanica</normalizedToken>
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de Belo Horizonte, FZB-BH), factors that may attenuate its threatened status.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="45" type="etymology">
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<paragraph pageId="2" pageNumber="45">Etymology.</paragraph>
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<paragraph pageId="2" pageNumber="45">
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The epithet
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<emphasis italics="true" pageId="2" pageNumber="45">serpens</emphasis>
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refers to the serpent-like habit of the perennial individuals, which have an unbranched, thick woody stem that slowly elongates and becomes creeping, with an erect apex.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="46" pageId="2" pageNumber="45" type="comments">
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<paragraph pageId="2" pageNumber="45">Comments.</paragraph>
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<paragraph pageId="2" pageNumber="45">The extremely reduced population and restricted occurrence range probably contributed to this species remaining undescribed. It occurs on high slopes with difficult access from the closest trails and roads.</paragraph>
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<paragraph lastPageId="3" lastPageNumber="46" pageId="2" pageNumber="45">
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The species architecture and trimerous flowers place
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<taxonomicName genus="Paelanthus" lsidName="Paelanthus serpens" pageId="3" pageNumber="46" rank="species" species="serpens">
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<emphasis italics="true" pageId="3" pageNumber="46">
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<pageBreakToken pageId="3" pageNumber="46" start="start">Paelanthus</pageBreakToken>
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serpens
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</emphasis>
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</taxonomicName>
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within
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<taxonomicName genus="Paelanthus" lsidName="Paelanthus subsp. ser." pageId="3" pageNumber="46" rank="series" series="Paepalanthus">Paelanthus ser. Paepalanthus</taxonomicName>
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(
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<bibRefCitation author="Ruhland, W" journalOrPublisher="Das Pflanzenreich. Regni vegetabilis conspectus IV" pageId="3" pageNumber="46" refId="B5" refString="Ruhland, W, 1903. . Das Pflanzenreich. Regni vegetabilis conspectus IV 30" volume="30" year="1903">Ruhland 1903</bibRefCitation>
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), which is the largest of the genus, encompassing most of its morphological, taxonomic and phylogenetic complexity (
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<bibRefCitation author="Andrade, MJG de" journalOrPublisher="Taxon" pageId="3" pageNumber="46" pagination="379 - 388" publicationUrl="10.3417/2011001" refId="B1" refString="Andrade, MJG de, Giulietti, AM, Rapini, A, Queiroz, LP de, Conceicao, ADS, Almeida, PRM de, van den Berg, C, 2010. A comprehensive phylogenetic analysis of Eriocaulaceae: evidence from nuclear (ITS) and plastid (psbA-trnH and trnL-F) DNA sequences. Taxon 59: 379 - 388, DOI: 10.3417/2011001" title="A comprehensive phylogenetic analysis of Eriocaulaceae: evidence from nuclear (ITS) and plastid (psbA-trnH and trnL-F) DNA sequences." url="10.3417/2011001" volume="59" year="2010">Andrade et al. 2010</bibRefCitation>
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,
|
||
<bibRefCitation author="Giulietti, AM" journalOrPublisher="Rodriguesia" pageId="3" pageNumber="46" pagination="1 - 19" publicationUrl="10.1590/S2175-78602012000100001" refId="B4" refString="Giulietti, AM, Andrade, MJG de, Scatena, VL, Trovo, M, Coan, AI, Sano, PT, Santos, F de AR dos, Borges, RLB de, van den Berg, C, 2012. Molecular phylogeny, morphology and their implications for the taxonomy of Eriocaulaceae. Rodriguesia 63: 1 - 19, DOI: 10.1590/S2175-78602012000100001" title="Molecular phylogeny, morphology and their implications for the taxonomy of Eriocaulaceae." url="10.1590/S2175-78602012000100001" volume="63" year="2012">Giulietti et al. 2012</bibRefCitation>
|
||
,
|
||
<bibRefCitation author="Trovo, M" journalOrPublisher="Blumea" pageId="3" pageNumber="46" pagination="77 - 79" publicationUrl="10.3767/000651913X672307" refId="B9" refString="Trovo, M, Echternacht, L, Sano, PT, Costa, FN, 2013. Paepalanthus aleurophyllus, a new species of Eriocaulaceae from Minas Gerais, Brazil. Blumea 58: 77 - 79, DOI: 10.3767/000651913X672307" title="Paepalanthus aleurophyllus, a new species of Eriocaulaceae from Minas Gerais, Brazil." url="10.3767/000651913X672307" volume="58" year="2013">
|
||
<normalizedToken originalValue="Trovó">Trovo</normalizedToken>
|
||
et al. 2013
|
||
</bibRefCitation>
|
||
). Usually species within this series are hard to identify (
|
||
<bibRefCitation author="Andrino, CO" journalOrPublisher="Universidade de Sao Paulo, Brazil" pageId="3" pageNumber="46" refId="B2" refString="Andrino, CO, 2013. O genero Paepalanthus Mart. (Eriocaulaceae) no Parque Estadual do Biribiri, Minas Gerais. Universidade de Sao Paulo, Brazil" title="O genero Paepalanthus Mart. (Eriocaulaceae) no Parque Estadual do Biribiri, Minas Gerais" year="2013">Andrino 2013</bibRefCitation>
|
||
), making the confident recognition of new species challenging.
|
||
<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="serpens">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus serpens</emphasis>
|
||
</taxonomicName>
|
||
, however, is very different from the other species of the series in several aspects. It can be easily distinguished by its robust habit, with an elongate, lignescent stem, thickened by marcescent leaf sheaths, bearing at the apex a rosette of linear and erect leaves, numerous scapes equalling the leaf height and capitula with straw-coloured involucre. This character set is unique within the genus. Other peculiar features are the scape spathes, which are quite short (up to 1 cm) and membranaceous, with lacerate margins, and short ferrugineous trichomes on the leaves and scapes. In addition, in some individuals, the trichomes on the bracts and flowers become yellowish after drying, which is an unusual feature within the genus.
|
||
</paragraph>
|
||
<paragraph pageId="3" pageNumber="46">
|
||
The species of
|
||
<taxonomicName class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus</emphasis>
|
||
</taxonomicName>
|
||
with similar overall morphology to
|
||
<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="serpens">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus serpens</emphasis>
|
||
</taxonomicName>
|
||
are
|
||
<taxonomicName class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus caespititius" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="caespititius">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus caespititius</emphasis>
|
||
</taxonomicName>
|
||
Mart. ex Koern. and
|
||
<taxonomicName authorityName="Ruhland" authorityYear="1903" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus brunnescens" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="brunnescens">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus brunnescens</emphasis>
|
||
</taxonomicName>
|
||
Ruhland. Both have a similar size and linear leaves, but more delicate habit and short, non-lignescent stem. These species are also not sympatric to
|
||
<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="serpens">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus serpens</emphasis>
|
||
</taxonomicName>
|
||
, as none of them are reported to the Serra do
|
||
<normalizedToken originalValue="Cipó">Cipo</normalizedToken>
|
||
.
|
||
<taxonomicName class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus caespititius" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="caespititius">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus caespititius</emphasis>
|
||
</taxonomicName>
|
||
is morphologically the most similar species, with similar leaf width and short scapes, surpassing the leaves by no more than 5 cm. However, it shows dark involucral bracts and lanose stem with long ferrugineous hairs.
|
||
<taxonomicName authorityName="Ruhland" authorityYear="1903" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus brunnescens" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="brunnescens">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus brunnescens</emphasis>
|
||
</taxonomicName>
|
||
resembles
|
||
<taxonomicName authorityName="Echtern. & Trovo" authorityYear="2015" class="Liliopsida" family="Eriocaulaceae" genus="Paepalanthus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Paepalanthus serpens" order="Poales" pageId="3" pageNumber="46" phylum="Tracheophyta" rank="species" species="serpens">
|
||
<emphasis italics="true" pageId="3" pageNumber="46">Paepalanthus serpens</emphasis>
|
||
</taxonomicName>
|
||
by its straw-coloured capitulum involucre, but can be easily differentiated by its short, branched stem, scapes greatly surpassing the leaf height, larger leaves, and elliptic to lanceolate involucral bracts.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |