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<document ID-CLB-Dataset="21659" ID-DOI="http://dx.doi.org/10.3897/phytokeys.151.49833" ID-GBIF-Dataset="3bb5a9b7-f2f7-4982-8227-060778ea53da" ID-PMC="PMC7314863" ID-Pensoft-Pub="1314-2003-151-93" ID-Pensoft-UUID="F3565CE915EC5E4286345A840D8EA7CD" ID-PubMed="32607055" ModsDocID="1314-2003-151-93" checkinTime="1592452044069" checkinUser="pensoft" docAuthor="Santos, Diego, Saraiva, Raysa Valeria Carvalho, Ferraz, Tiago Massi, Arruda, Emilia Cristina Pereira &amp; Buril, Maria Teresa" docDate="2020" docId="0A828ABDA6B95E9EB1540A6283A26D3D" docLanguage="en" docName="PhytoKeys 151: 93-106" docOrigin="PhytoKeys 151" docSource="http://dx.doi.org/10.3897/phytokeys.151.49833" docTitle="Ipomoea maranhensis D. Santos &amp; Buril 2020, sp. nov." docType="treatment" docVersion="6" id="F3565CE915EC5E4286345A840D8EA7CD" lastPageNumber="93" masterDocId="F3565CE915EC5E4286345A840D8EA7CD" masterDocTitle="A threatened new species of Ipomoea (Convolvulaceae) from the Brazilian Cerrado revealed by morpho-anatomical analysis" masterLastPageNumber="106" masterPageNumber="93" pageNumber="93" updateTime="1732879743204" updateUser="ExternalLinkService">
<mods:mods id="4AC05F69085385493E83365614F596D9" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="9506395B590D5067829419505017F8C2">
<mods:title id="F0EA07282EEFDD1963109FA097C48712">A threatened new species of Ipomoea (Convolvulaceae) from the Brazilian Cerrado revealed by morpho-anatomical analysis</mods:title>
</mods:titleInfo>
<mods:name id="ED2EC6C3FD306146D39010AC947A192E" type="personal">
<mods:role id="8784C5CB3EBB13794D08B6379A29CD0A">
<mods:roleTerm id="B03E0FB0415A378B21258F873B4BF919">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="0DBC6227756DEB12DA5A2082565380CE">Santos, Diego</mods:namePart>
<mods:affiliation id="4C5CD5DFA50DA463B81728EA13EC99B9">Programa de Pos-Graduacao em Botanica, Laboratorio de Sistematica Integrativa, Universidade Federal Rural de Pernambuco, Av. Manoel de Medeiros, s / n, Dois Irmaos, 50670 - 901, Recife, Pernambuco, Brazil</mods:affiliation>
<mods:nameIdentifier id="56FE67C136BD1F2C19D0B220E1C61B67" type="email">fdsantosbot@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name id="8B66153448E9021296B58C0272E5C86F" type="personal">
<mods:role id="5CFB4C3A04F1E0C9935003DA33A89B75">
<mods:roleTerm id="DFBB064F017B5E9161705A6B6D1606FC">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="6466035FED371D105A0840898812434A">Saraiva, Raysa Valeria Carvalho</mods:namePart>
<mods:affiliation id="A62A404F046AD3F8EBEB6BE47E7E39C8">Programa de Pos-Graduacao em Agroecologia, Universidade Estadual do Maranhao, Av. Lourenco Vieira da Silva, s / n, Jardim Sao Cristovao, 65055 - 970, Sao Luis, Maranhao, Brazil</mods:affiliation>
<mods:nameIdentifier id="0961F2D704D865F04D9827D58D85598F" type="orcid">https://orcid.org/0000-0002-0893-7338</mods:nameIdentifier>
</mods:name>
<mods:name id="12200AB56CEE07A55B74A065A98BA520" type="personal">
<mods:role id="88A9767BD43B960E2F2887DD09689566">
<mods:roleTerm id="B908306F149F092F27FDA1945C0C0283">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="DA666653CCBD88F96F77AEC4E09F1F15">Ferraz, Tiago Massi</mods:namePart>
<mods:affiliation id="F1D8E5017D980A13808034A6A6B1B6E5">Programa de Pos-Graduacao em Agroecologia, Universidade Estadual do Maranhao, Av. Lourenco Vieira da Silva, s / n, Jardim Sao Cristovao, 65055 - 970, Sao Luis, Maranhao, Brazil</mods:affiliation>
</mods:name>
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<mods:role id="7DDC8CD3CAEFA731D7DAFD9F941B730A">
<mods:roleTerm id="C4074EEBC25010EF883FC2406A128E5D">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="2FB079AC047FBD009F1CD4F5AC85C6CF">Arruda, Emilia Cristina Pereira</mods:namePart>
<mods:affiliation id="C2D8C558EF2AAB06AFF72B808DE31366">Departamento de Botanica, Laboratorio de Anatomia Vegetal, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, Cidade Universitaria, 50670 - 901, Recife, Pernambuco, Brazil</mods:affiliation>
</mods:name>
<mods:name id="856AEC432305FF927250109BF3047089" type="personal">
<mods:role id="23954AC12C3220414FB48F490DE64614">
<mods:roleTerm id="6B02EC01A197CF553CAC616EE94F715B">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="03D79D1D484CB6D6C04B0D19E9F1125D">Buril, Maria Teresa</mods:namePart>
<mods:affiliation id="99E5C5DB91670395193E2607672A2F99">Programa de Pos-Graduacao em Botanica, Laboratorio de Sistematica Integrativa, Universidade Federal Rural de Pernambuco, Av. Manoel de Medeiros, s / n, Dois Irmaos, 50670 - 901, Recife, Pernambuco, Brazil</mods:affiliation>
<mods:nameIdentifier id="297C74DF79CDA899A27BFB69027F802A" type="orcid">https://orcid.org/0000-0001-9615-2057</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource id="4ABF435A6CE0A3CFF51053EC525B302D">text</mods:typeOfResource>
<mods:relatedItem id="256C726D4C1D250DC7A63C73C9CE3F98" type="host">
<mods:titleInfo id="2E7CEAC52712C8B937B5582E84352FF9">
<mods:title id="F00D953980332FACFB8092DAC11A11C8">PhytoKeys</mods:title>
</mods:titleInfo>
<mods:part id="E376D966347A1E16F756906469B9A648">
<mods:date id="D476ED823CE0F384D3B0B73CEEE33725">2020</mods:date>
<mods:detail id="5BE209018A12BE4E7D283D0B2B48F93B" type="volume">
<mods:number id="BF4979B22BF16509EA632FA2BB4C4C3E">151</mods:number>
</mods:detail>
<mods:extent id="EA621166CFC360C71F610E4C68F0ED3C" unit="page">
<mods:start id="464A606661244B3928D929DCDF8B3E15">93</mods:start>
<mods:end id="E9DBB727431E1407B595AC26D8401878">106</mods:end>
</mods:extent>
</mods:part>
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<mods:location id="FDA9F81827F008F306E0D9B855743EFB">
<mods:url id="3571D8750771FC8F2C92DAFB50BE6357">http://dx.doi.org/10.3897/phytokeys.151.49833</mods:url>
</mods:location>
<mods:classification id="EFFA4D6E1520BFA3E4451C21740BE4ED">journal article</mods:classification>
<mods:identifier id="E5C18922E030D18BFEAB1D7D13E8DF01" type="DOI">http://dx.doi.org/10.3897/phytokeys.151.49833</mods:identifier>
<mods:identifier id="4DEA192BF948A429E1396025A63ADA76" type="Pensoft-Pub">1314-2003-151-93</mods:identifier>
<mods:identifier id="084D6EC392AB10359576F50A5DCE7ADC" type="Pensoft-UUID">F3565CE915EC5E4286345A840D8EA7CD</mods:identifier>
</mods:mods>
<treatment id="0A828ABDA6B95E9EB1540A6283A26D3D" ID-GBIF-Taxon="164613241" LSID="urn:lsid:plazi:treatment:0A828ABDA6B95E9EB1540A6283A26D3D" httpUri="http://treatment.plazi.org/id/0A828ABDA6B95E9EB1540A6283A26D3D" lastPageNumber="93" pageId="0" pageNumber="93" scope_family="Convolvulaceae">
<subSubSection id="88380ED1C0BD37EA8BF70882620D2D93" pageId="0" pageNumber="93" type="nomenclature">
<paragraph id="CB0916DB008141411CF1760FCF357C98" pageId="0" pageNumber="93">
<taxonomicName id="F6F123CE46E85B5E0D1BA5A81C1EC217" ID-CoL="7WR32" LSID="0A828ABD-A6B9-5E9E-B154-0A6283A26D3D" authority="D. Santos &amp; Buril" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis" status="sp. nov.">Ipomoea maranhensis D. Santos &amp; Buril</taxonomicName>
<taxonomicNameLabel id="AC55F2B11B24B55ED1DE558BAC4D4E46" pageId="0" pageNumber="93">sp. nov.</taxonomicNameLabel>
<figureCitation id="4D54C7371C6E05025897A69A6BBA783D" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. A-F Ipomoea maranhensis A branch with leaves (abaxial surface) and flowers B branch with leaves (adaxial surface) and floral buds C leaf in abaxial view presenting sericeous aspect D floral bud E sepals F ovary (Photos by F. Santos and Flora do Brasil 2019)." figureDoi="10.3897/phytokeys.151.49833.figure1" httpUri="https://binary.pensoft.net/fig/422481" pageId="0" pageNumber="93">Figs 1</figureCitation>
<figureCitation id="C9BE55D29F92419CE5804BE7AA33BD0D" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-H Ipomoea maranhensis A twining habit B primary and secondary veins on the abaxial surface C floral bud D sepals with apex long acuminate E flower F open corolla G stamen H gynoecium. Drawn by Regina Carvalho from Felix et al. 8136." figureDoi="10.3897/phytokeys.151.49833.figure2" httpUri="https://binary.pensoft.net/fig/422482" pageId="0" pageNumber="93">, 2</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="065BAA2D3E05630D27FDB4D892BAC177" pageId="0" pageNumber="93" type="materials_examined">
<paragraph id="773C8206D9352674418BD6B528D7BFC0" pageId="0" pageNumber="93">Type.</paragraph>
<paragraph id="F32DDB5EB7656E43E45F152CA0E246F3" pageId="0" pageNumber="93">
Brazil.
<normalizedToken id="4A47D4EFB1BEA2F3A33F61600E2ED852" originalValue="Maranhão">Maranhao</normalizedToken>
:
<normalizedToken id="055B8D8ADA3237AC5183709BE9F4F383" originalValue="município">municipio</normalizedToken>
de Mirador, Ibipira, Parque Estadual do Mirador,
<geoCoordinate id="171F9A4F98749AB63870B7A932DFEFB4" degrees="06" direction="south" minutes="22" orientation="latitude" precision="15" seconds="01" value="-6.366945">06°22'01&quot;S</geoCoordinate>
,
<geoCoordinate id="C539C9F072F6C5C90D7A694F968C0DCF" degrees="44" direction="west" minutes="22" orientation="longitude" precision="15" seconds="00" value="-44.366665">44°22'00&quot;W</geoCoordinate>
, 11 April 1998 (fl.),
<emphasis id="2CFA0E559884D54B550EAB708293578C" italics="true" pageId="0" pageNumber="93">
L.P.
<normalizedToken id="58A201C77DCF3EFAD6472229D8ABBBD7" originalValue="Félix">Felix</normalizedToken>
et al. 8136
</emphasis>
(holotype HUEFS38133, isotype HST8028).
</paragraph>
</subSubSection>
<subSubSection id="50F70CFEB627A1FB68D1EC72772D52EA" pageId="0" pageNumber="93" type="diagnosis">
<paragraph id="1EF7A64B863461584BCCD1870D08DC44" pageId="0" pageNumber="93">Diagnosis.</paragraph>
<paragraph id="B9B789440893BACFBCB7825EF7BE1E85" pageId="0" pageNumber="93">
<taxonomicName id="0C47E4947D1F87E5617864CABEF84CA5" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis">
<emphasis id="DC168D7D15D9CEB67BBAD0466ACD1F4E" italics="true" pageId="0" pageNumber="93">Ipomoea maranhensis</emphasis>
</taxonomicName>
differs morphologically from
<taxonomicName id="4A69C4E8ECD01B2B2CF10BD21EAF3D6C" lsidName="I. burchellii" pageId="0" pageNumber="93" rank="species" species="burchellii">
<emphasis id="387E1D3F45938F7602BA329EEC5498F9" italics="true" pageId="0" pageNumber="93">I. burchellii</emphasis>
</taxonomicName>
Meins. by its twining habit (vs. subshrubs), lanceolate (vs. oblong), long-acuminate (vs. acute) and densely sericeous (vs. hirsute) sepals.
</paragraph>
<caption id="231E5D830791F8E492F93610A34E978B" doi="10.3897/phytokeys.151.49833.figure1" httpUri="https://binary.pensoft.net/fig/422481" pageId="0" pageNumber="93" start="Figure 1" startId="F1">
<paragraph id="314AC2B60DE82271F1B3003A68334DF1" pageId="0" pageNumber="93">
<emphasis id="624E18D0AF2D3EF9C5525EB272BC6301" bold="true" pageId="0" pageNumber="93">Figure 1.</emphasis>
<emphasis id="B88D7703BF776581CB7F410F71291D73" bold="true" pageId="0" pageNumber="93">A-F</emphasis>
<taxonomicName id="99B52295787E80529D4A23DFA50C4652" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis">
<emphasis id="C5A7C57B2F935D20899FA680A70BBBBB" italics="true" pageId="0" pageNumber="93">Ipomoea maranhensis</emphasis>
</taxonomicName>
<emphasis id="F79E8BACBEA8305F5A3B2C9CC5919FE7" bold="true" pageId="0" pageNumber="93">A</emphasis>
branch with leaves (abaxial surface) and flowers
<emphasis id="5F12E7388D8AABFA303CBDCE091AC641" bold="true" pageId="0" pageNumber="93">B</emphasis>
branch with leaves (adaxial surface) and floral buds
<emphasis id="297509219260A17081C7C6FDC7BC1E07" bold="true" pageId="0" pageNumber="93">C</emphasis>
leaf in abaxial view presenting sericeous aspect
<emphasis id="CC7BC32B323BAA185A84C2FDDC9182E3" bold="true" pageId="0" pageNumber="93">D</emphasis>
floral bud
<emphasis id="EBE09EE81075CA3E546F469EE602250B" bold="true" pageId="0" pageNumber="93">E</emphasis>
sepals
<emphasis id="60C0C0B646A2DBAF40792A03E85D3E41" bold="true" pageId="0" pageNumber="93">F</emphasis>
ovary (Photos by F. Santos and Flora do Brasil 2019).
</paragraph>
</caption>
</subSubSection>
<subSubSection id="5498C7EE981B63947B254F22BF198937" pageId="0" pageNumber="93" type="description">
<paragraph id="C74652BA529832DD2EED520289BD3DC5" pageId="0" pageNumber="93">Description.</paragraph>
<paragraph id="B68F5A579E5708D559B4A19F26A570AC" pageId="0" pageNumber="93">
Vine, internodes 1-5 cm long, latex absent; stem pubescent with whitish trichomes. Leaf blade 3.3-7
<normalizedToken id="67F9B055B04ABE35BBDE601C175D4085" originalValue="×">x</normalizedToken>
0.9-2.3 cm, oblong, base cuneate, rounded to subcordate, apex obtuse, acute, apiculate, margin entire, pubescent on both surfaces, discolor, whitish on abaxial face, brochidodromous, 6-10 pairs of secondary veins, main vein prominent; petiole 2-3 mm long, canaliculate, pubescent, nectary near the apex of the petiole. Inflorescence of dichasial cymes reduced, bracteolate in the axils of the upper leaves, with 3-7 flowers; peduncle 2-3 mm long, pubescent; bracts 1.7-2
<normalizedToken id="799442D735F191577196E2C3EB2C02D0" originalValue="×">x</normalizedToken>
0.5-0.8 cm, elliptical, base cuneate, apex obtuse, pubescent, foliaceous, discolor; pedicel 2-4 mm long, pubescent; bracteoles 0.9-1.6 cm long, lanceolate, oblong, base truncate, apex acute, obtuse, margin entire, pubescent. Sepals all equal, 1.7-2.3
<normalizedToken id="406BB5401525612DD76CBE19D54FA792" originalValue="×">x</normalizedToken>
0.4-0.5 cm, lanceolate, base cuneate, apex long-acuminate, margins non-membranous, densely sericeous on the adaxial surface of the sepals, whitish. Corolla ca. 4 cm long, ca. 4.5 cm diam, infundibuliform, tube ca. 1.6 cm long, rose with whitish tube, midpetaline bands area sericeous externally. Stamens ca. 3 cm long, included, unequal, pilose at the base, anthers ca. 4 mm long, oblong, white. Ovary ca. 4 mm long, conical, glabrous, 4 locule; style ca. 2 cm long, glabrous; stigma bi-globose, papillose. Fruit unknown.
</paragraph>
<caption id="6CD0972B7D827306090B7F19FDB1B024" doi="10.3897/phytokeys.151.49833.figure2" httpUri="https://binary.pensoft.net/fig/422482" pageId="0" pageNumber="93" start="Figure 2" startId="F2">
<paragraph id="A4F2B2C5F9BD0FA925A0BA9D1B2419D1" pageId="0" pageNumber="93">
<emphasis id="2441526A4FC281052C70F14E94253EA5" bold="true" pageId="0" pageNumber="93">Figure 2.</emphasis>
<emphasis id="550AC1A85D95BE13C886E8E65D3F1236" bold="true" pageId="0" pageNumber="93">A-H</emphasis>
<taxonomicName id="4ED76F3B1253D1618B29FFF7BFE73219" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis">
<emphasis id="F393A4CD0BFF149789F2B51729E5A43B" italics="true" pageId="0" pageNumber="93">Ipomoea maranhensis</emphasis>
</taxonomicName>
<emphasis id="CC4C202A3FCD20AC76F972A922F724C2" bold="true" pageId="0" pageNumber="93">A</emphasis>
twining habit
<emphasis id="03ADF870B95E59B5E32FB391FC33DC8F" bold="true" pageId="0" pageNumber="93">B</emphasis>
primary and secondary veins on the abaxial surface
<emphasis id="D95132C6E36D7EE7314470FD94C6D798" bold="true" pageId="0" pageNumber="93">C</emphasis>
floral bud
<emphasis id="A6BE1667F2F6E57403300DF560C666E0" bold="true" pageId="0" pageNumber="93">D</emphasis>
sepals with apex long acuminate
<emphasis id="2993576A17E961B9FF3859A9D54AFBDB" bold="true" pageId="0" pageNumber="93">E</emphasis>
flower
<emphasis id="1AE8788654E03ED7E9B3B81B7B207CA3" bold="true" pageId="0" pageNumber="93">F</emphasis>
open corolla
<emphasis id="80510AA2837A18044542F0A6D6CE861D" bold="true" pageId="0" pageNumber="93">G</emphasis>
stamen
<emphasis id="20F722F09BE78F15C2AF854DCC077ED3" bold="true" pageId="0" pageNumber="93">H</emphasis>
gynoecium. Drawn by Regina Carvalho from
<emphasis id="90AFF696CF8DFC3504CD2FEFF0234158" italics="true" pageId="0" pageNumber="93">
<normalizedToken id="C39F37B56B9B4785C7B3437AB4B69DA6" originalValue="Félix">Felix</normalizedToken>
et al. 8136
</emphasis>
.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="F1FFA92B67DA1AB7A01DE4CA74455183" pageId="0" pageNumber="93" type="description">
<paragraph id="E76B0184A39F676AC90683E7ED2703E9" pageId="0" pageNumber="93">Anatomical description - petiole and leaf blade.</paragraph>
<paragraph id="2B8DE695FE855D03D6DE354E43D9BB3D" pageId="0" pageNumber="93">Petiole epidermis uniseriate with juxtaposed cells, parenchyma with isodiametric cells, prominent/concave main rib shape, U-shaped vascular bundles. Leaf epidermis uniseriate, mesophyll dorsiventral with crystallized idioblasts (druses), palisade parenchyma with one to two layers of elongated cells more evident on the adaxial surface, spongy parenchyma with three to four layers of round cells with sinuous anticlinal walls; glandular trichomes on both leaf surfaces.</paragraph>
<paragraph id="EEC63C6B6783FB5A9D23463687D7639C" pageId="0" pageNumber="93">
According to the anatomical analysis, we observed that
<taxonomicName id="01A702CF49E97C08510ED7FF9701B1AB" lsidName="I. maranhensis" pageId="0" pageNumber="93" rank="species" species="maranhensis">
<emphasis id="688DF77BEC6D0EAA9F933F7730399FE8" italics="true" pageId="0" pageNumber="93">I. maranhensis</emphasis>
</taxonomicName>
and
<taxonomicName id="2DDCF36534FC0F8199005508B5126F50" lsidName="I. burchellii" pageId="0" pageNumber="93" rank="species" species="burchellii">
<emphasis id="81A2AC895F3474C644DDEB422F98E67F" italics="true" pageId="0" pageNumber="93">I. burchellii</emphasis>
</taxonomicName>
share mesophyll with crystallized idioblasts (druses) and petiole parenchyma with isodiametric cells. However,
<taxonomicName id="043631648DB180C75FD397D13ACE6DB4" lsidName="I. maranhensis" pageId="0" pageNumber="93" rank="species" species="maranhensis">
<emphasis id="720A7EDC7F9DA22B1956103056F23363" italics="true" pageId="0" pageNumber="93">I. maranhensis</emphasis>
</taxonomicName>
is distinguished from
<taxonomicName id="B0C41CEB6DA97FA7A0FB84C344A5C153" lsidName="I. burchellii" pageId="0" pageNumber="93" rank="species" species="burchellii">
<emphasis id="9B980CF145433A5DF8D03BD29FCC1A88" italics="true" pageId="0" pageNumber="93">I. burchellii</emphasis>
</taxonomicName>
by a prominent/concave main rib shape (vs. convex/flat main rib shape in
<taxonomicName id="5AFD29DABAEFE95AAA9473C5D33835FB" lsidName="I. burchellii" pageId="0" pageNumber="93" rank="species" species="burchellii">
<emphasis id="F570C0C18A4B938D7484BAE3CE97CD31" italics="true" pageId="0" pageNumber="93">I. burchellii</emphasis>
</taxonomicName>
), U-shaped vascular bundles (vs. V-shaped), glandular trichomes spread on both leaf surfaces (vs. only on abaxial one) and dorsiventral mesophyll (vs. isobilateral) (Fig.
<figureCitation id="614D9C3EEAB8ABF6F2F46BEDADABD263" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A, B Ipomoea maranhensis A arrangement of vascular bundles in U; prominent / concave main rib shape B dorsiventral mesophyll C-F I. burchellii C arrangement of vascular bundles in V; convex / flat main rib shape D mesophyll isobilateral E glandular trichomes restricted to the abaxial surface of the leaf (red arrow) F parenchymatous tissue with isodiametric cells (Photos by E. Pereira Arruda). AD: adaxial epidermis; AB: abaxial epidermis; Is: isodiametric cells; Pa: Parenchymatous tissue; Pp: palisade parenchyma; Sp: spongy parenchyma; Vb: vascular bundle; Tr: trichome." figureDoi="10.3897/phytokeys.151.49833.figure3" httpUri="https://binary.pensoft.net/fig/422483" pageId="0" pageNumber="93">3</figureCitation>
) (Table
<tableCitation id="1A50FA95D88C561E9088F51BAB95E380" captionStart="Table 2" captionStartId="T2" captionText="Table 2. Comparison of morpho-anatomical characters of Ipomoea maranhensis and I. burchellii." httpUri="http://table.plazi.org/id/F15E1744936F7D2F9757632B70519283" pageId="0" pageNumber="93" tableUuid="F15E1744936F7D2F9757632B70519283">2</tableCitation>
).
</paragraph>
<caption id="F15E1744936F7D2F9757632B70519283" ID-Table-UUID="F15E1744936F7D2F9757632B70519283" httpUri="http://table.plazi.org/id/F15E1744936F7D2F9757632B70519283" pageId="0" pageNumber="93" start="Table 2" startId="T2">
<paragraph id="62F39AFCCA7647A6845D8D4B2FBE6899" pageId="0" pageNumber="93">
<emphasis id="6DD36ED958CC30230CDE8AE94D42E054" bold="true" pageId="0" pageNumber="93">Table 2.</emphasis>
Comparison of morpho-anatomical characters of
<taxonomicName id="93A44A804FA47DB055C84BC50C9C2E72" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis">
<emphasis id="F7A803C6AC24D7C07CBCAF48DC74036E" italics="true" pageId="0" pageNumber="93">Ipomoea maranhensis</emphasis>
</taxonomicName>
and
<taxonomicName id="A4DD7F8909FC215EBBCD2810C818BC39" lsidName="I. burchellii" pageId="0" pageNumber="93" rank="species" species="burchellii">
<emphasis id="7BFC3920788D69335C39D5F4686B87B7" italics="true" pageId="0" pageNumber="93">I. burchellii</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph id="4BD3431D0D6E8F206956B9C8952EF269" pageId="0" pageNumber="93">
<table id="31CD1967672DF94D028457B250D35903" pageId="0" pageNumber="93">
<tr id="E71CB5C67055989B33493D173501930B" pageId="0" pageNumber="93">
<th id="4FD4BDC7CBD4A97912E3F1565FC6EE60" colspan="1" pageId="0" pageNumber="93" rowspan="1">Characters</th>
<th id="DCED33141BBC2E6D65CF37355A9B100A" colspan="1" pageId="0" pageNumber="93" rowspan="1">
<taxonomicName id="F28CD5CF287EBD57AACF0773C59B8498" lsidName="I. maranhensis" pageId="0" pageNumber="93" rank="species" species="maranhensis">
<emphasis id="1290378009AFD3CF9C3BF7D095F8528F" italics="true" pageId="0" pageNumber="93">I. maranhensis</emphasis>
</taxonomicName>
</th>
<th id="4659D4ABC33793A0B67DED5470D753A1" colspan="1" pageId="0" pageNumber="93" rowspan="1">
<taxonomicName id="B9B4EE840F0C440BF2DE37AC1398ECB1" lsidName="I. burchellii" pageId="0" pageNumber="93" rank="species" species="burchellii">
<emphasis id="E74F0B487D5C66DD0CBDD24F9D30927B" italics="true" pageId="0" pageNumber="93">I. burchellii</emphasis>
</taxonomicName>
</th>
</tr>
<tr id="2972523A29F6947B1652368BC6BF9C72" pageId="0" pageNumber="93">
<td id="68495135FC6C58B543BF9F05A799FD02" colspan="1" pageId="0" pageNumber="93" rowspan="1">Shape of sepals</td>
<td id="F0E4C06058544B90DD9179A6BCCE5C83" colspan="1" pageId="0" pageNumber="93" rowspan="1">Lanceolate</td>
<td id="0FBCD3105CAB4A4C33B4946F838CD54E" colspan="1" pageId="0" pageNumber="93" rowspan="1">Oblong</td>
</tr>
<tr id="05F066BC1A07FC10ED67F7E5DEFF3F89" pageId="0" pageNumber="93">
<td id="08863A50C0A004D0BF488C001A6C32EB" colspan="1" pageId="0" pageNumber="93" rowspan="1">Apex of sepals</td>
<td id="9FAAE7090D2BC5361256884C83DFCC58" colspan="1" pageId="0" pageNumber="93" rowspan="1">Acuminate</td>
<td id="7AB3F0D35F63025BF35A23789DF32D59" colspan="1" pageId="0" pageNumber="93" rowspan="1">Acute</td>
</tr>
<tr id="DCF54272A6549861655E989D7C59B793" pageId="0" pageNumber="93">
<td id="7EB8EFF6F7C5EB441D1742EADC2B5AB4" colspan="1" pageId="0" pageNumber="93" rowspan="1">Indumentum of sepals</td>
<td id="1CC8283A395F2171BE784297EE3DE789" colspan="1" pageId="0" pageNumber="93" rowspan="1">Sericeous</td>
<td id="F87BD473BB6053FAF0CDD84296DF3F30" colspan="1" pageId="0" pageNumber="93" rowspan="1">Hirsute</td>
</tr>
<tr id="392E830E0607C86E010B66121BDD6192" pageId="0" pageNumber="93">
<td id="7784E16063FCF8B1553FD041D6A0D29D" colspan="1" pageId="0" pageNumber="93" rowspan="1">Arrangement of vascular bundles</td>
<td id="B9F435F0E55EA56CA74CC90385BA89F0" colspan="1" pageId="0" pageNumber="93" rowspan="1">U-shaped</td>
<td id="D16A0351B04E6FC9D85A6DCA4659A4E5" colspan="1" pageId="0" pageNumber="93" rowspan="1">V-shaped</td>
</tr>
<tr id="540E39D5750B7FBD319D7E6613445F33" pageId="0" pageNumber="93">
<td id="6B7124A2C5028BFE1270609BE4806A95" colspan="1" pageId="0" pageNumber="93" rowspan="1">Glandular trichomes on leaf</td>
<td id="4AB28CD8DD6531605ED715042FB09A25" colspan="1" pageId="0" pageNumber="93" rowspan="1">Both surfaces</td>
<td id="685D63E32F24E7587CDF3C7196D1FA6A" colspan="1" pageId="0" pageNumber="93" rowspan="1">Abaxial surface</td>
</tr>
<tr id="871EA41F8F6307B3528A4F2407E4DB37" pageId="0" pageNumber="93">
<td id="2F76FD6984CF4FE6812531816DA604E2" colspan="1" pageId="0" pageNumber="93" rowspan="1">Type of mesophyll</td>
<td id="7C1E51559757FA700E37642056724E73" colspan="1" pageId="0" pageNumber="93" rowspan="1">Dorsiventral</td>
<td id="01C4F900E13E0F36C5792762A3DB0ECB" colspan="1" pageId="0" pageNumber="93" rowspan="1">Isobilateral</td>
</tr>
</table>
</paragraph>
<caption id="927EECC4B9294593FBC89B54A84D77DD" doi="10.3897/phytokeys.151.49833.figure3" httpUri="https://binary.pensoft.net/fig/422483" pageId="0" pageNumber="93" start="Figure 3" startId="F3">
<paragraph id="2A3F4CD86187D1E3E2760CDC6AAC6EED" pageId="0" pageNumber="93">
<emphasis id="D9B6D57E0D959572BD13DC1B57C8D2C6" bold="true" pageId="0" pageNumber="93">Figure 3.</emphasis>
<emphasis id="D7AA661DC477D209B82EE2EFBDE79658" bold="true" pageId="0" pageNumber="93">A, B</emphasis>
<taxonomicName id="87F5C9DEFA46802A13E1B431FF48309F" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis">
<emphasis id="5EFD1706ADBCDB5D7920A3C7791D289E" italics="true" pageId="0" pageNumber="93">Ipomoea maranhensis</emphasis>
</taxonomicName>
<emphasis id="48D0B146E66F2107FA4BA16E4347B302" bold="true" pageId="0" pageNumber="93">A</emphasis>
arrangement of vascular bundles in U; prominent/concave main rib shape
<emphasis id="5F5463C78E61115E783D0BCF1D3E16B3" bold="true" pageId="0" pageNumber="93">B</emphasis>
dorsiventral mesophyll
<emphasis id="77010CD78325EB2FA7E0CE969C81520D" bold="true" pageId="0" pageNumber="93">C-F</emphasis>
<taxonomicName id="326FF2515D8DA4E885A5974136BE1DB0" lsidName="I. burchellii" pageId="0" pageNumber="93" rank="species" species="burchellii">
<emphasis id="806511CB77CDCAEC5976C842BC6BFED5" italics="true" pageId="0" pageNumber="93">I. burchellii</emphasis>
</taxonomicName>
<emphasis id="7DB85EB38D055E48A48FC7EEF19B1491" bold="true" pageId="0" pageNumber="93">C</emphasis>
arrangement of vascular bundles in V; convex/flat main rib shape
<emphasis id="20119E7F28E2847FA3B77646AE9AC694" bold="true" pageId="0" pageNumber="93">D</emphasis>
mesophyll isobilateral
<emphasis id="661D6B328733599FE3532C8C5E348A67" bold="true" pageId="0" pageNumber="93">E</emphasis>
glandular trichomes restricted to the abaxial surface of the leaf (red arrow)
<emphasis id="2717D1313294DDCC1B7BA2F652742913" bold="true" pageId="0" pageNumber="93">F</emphasis>
parenchymatous tissue with isodiametric cells (Photos by E. Pereira Arruda). AD: adaxial epidermis; AB: abaxial epidermis; Is: isodiametric cells; Pa: Parenchymatous tissue; Pp: palisade parenchyma; Sp: spongy parenchyma; Vb: vascular bundle; Tr: trichome.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="4F9527C9A8C80455B3233FC41FAFF276" pageId="0" pageNumber="93" type="phenology">
<paragraph id="4EBF16453B6BA0112FCA63B1086AE45C" pageId="0" pageNumber="93">Phenology.</paragraph>
<paragraph id="AA867C0E0CE82BFE07806E1980ADDA9D" pageId="0" pageNumber="93">Collected with flowers in April.</paragraph>
</subSubSection>
<subSubSection id="6A6FF5A88D5134A5B37FCCA38BF403E6" pageId="0" pageNumber="93" type="distribution">
<paragraph id="AFAB6E7AF3F26727BCB044A32649DB2C" pageId="0" pageNumber="93">Distribution and habitat.</paragraph>
<paragraph id="20986DBA33B853007ED3868BBE3631ED" pageId="0" pageNumber="93">
<taxonomicName id="8F1104C5D6EAF072DEEC03CAEC19E7A2" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis">
<emphasis id="C4ED92EDD1CABBC18A2E060A02856BB5" italics="true" pageId="0" pageNumber="93">Ipomoea maranhensis</emphasis>
</taxonomicName>
is known only from two disjunct populations between the municipality of Mirador, in the Mirador State Park (area of 4370 km2) and the municipality of Carolina, in the National Park Chapada das Mesas (CMNP, area of 1600 km2) (Fig.
<figureCitation id="D9158BA6AF37A2F16000516204EBC3E7" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Distribution map of Ipomoea maranhensis." figureDoi="10.3897/phytokeys.151.49833.figure4" httpUri="https://binary.pensoft.net/fig/422484" pageId="0" pageNumber="93">4</figureCitation>
). In both areas this species grows on quartzite soils associated with Cerrado vegetation at 186-345 m elevation, average temperature of 26 °C and annual precipitation between 1250-1500 mm (
<bibRefCitation id="7F3DACD6FD1E07068E9E6F72323EB224" author="Alcantara, EH" journalOrPublisher="Caminhos de Geografia" pageId="0" pageNumber="93" pagination="97 - 113" publicationUrl="http://files.nea.webnode.com/200000006-3cfc83df67/artigo07_vol11_Itapecuru.pdf" refId="B1" refString="Alcantara, EH, 2004. Caracterizacao da bacia hidrografica do rio Itapecuru, Maranhao Brasil. Caminhos de Geografia 7 (11): 97 - 113, http://files.nea.webnode.com/200000006-3cfc83df67/artigo07_vol11_Itapecuru.pdf" title="Caracterizacao da bacia hidrografica do rio Itapecuru, Maranhao Brasil." url="http://files.nea.webnode.com/200000006-3cfc83df67/artigo07_vol11_Itapecuru.pdf" volume="7" year="2004">
<normalizedToken id="97A440F492479C309629CBAD73A9CF23" originalValue="Alcântara">Alcantara</normalizedToken>
2004
</bibRefCitation>
;
<bibRefCitation id="EA7491797992F8FB33C7D4A2E774561B" author="IBAMA" journalOrPublisher="Spring Lake Publishing, Spring Lake, Utah" pageId="0" pageNumber="93" publicationUrl="https://www.ibama.gov.br/phocadownload/prevfogo/planos_operativos/plano_operativoparna_da_chapada_das_mesas.pdf" refId="B12" refString="IBAMA, 2013. Plano Operativo De Prevencao e Combate aos Incendios Florestais do Parque Nacional da Chapada das Mesas. Ministerio do Meio Ambiente, Carolina. https://www.ibama.gov.br/phocadownload/prevfogo/planos_operativos/plano_operativoparna_da_chapada_das_mesas.pdf" title="Plano Operativo De Prevencao e Combate aos Incendios Florestais do Parque Nacional da Chapada das Mesas. Ministerio do Meio Ambiente, Carolina." url="https://www.ibama.gov.br/phocadownload/prevfogo/planos_operativos/plano_operativoparna_da_chapada_das_mesas.pdf" year="2013">IBAMA 2013</bibRefCitation>
). The occurrence of this new species in the National Park Chapada das Mesas and in the Mirador State Park emphasizes the importance of these protected areas for the preservation of this taxon in the Cerrado domain.
</paragraph>
<caption id="C50B417B2B300A9420D99B0CB53C8F08" doi="10.3897/phytokeys.151.49833.figure4" httpUri="https://binary.pensoft.net/fig/422484" pageId="0" pageNumber="93" start="Figure 4" startId="F4">
<paragraph id="7485FA4572C31CDEAE73B29A72FBC8B9" pageId="0" pageNumber="93">
<emphasis id="7DE3BDEFBCFB8878614843E939040A7A" bold="true" pageId="0" pageNumber="93">Figure 4.</emphasis>
Distribution map of
<taxonomicName id="B8EC6B437797BAF24D87EBB42412F1CF" authorityName="D. Santos &amp; Buril" authorityYear="2020" class="Magnoliopsida" family="Convolvulaceae" genus="Ipomoea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ipomoea maranhensis" order="Solanales" pageId="0" pageNumber="93" phylum="Tracheophyta" rank="species" species="maranhensis">
<emphasis id="FBE15A7F65B098EA43668E51C64C18AB" italics="true" pageId="0" pageNumber="93">Ipomoea maranhensis</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="CE0E5C1581BA7E9D147A27E982AFBC21" pageId="0" pageNumber="93" type="etymology">
<paragraph id="F8BB41C46E0EE6502564244CEC544848" pageId="0" pageNumber="93">Etymology.</paragraph>
<paragraph id="BC2B1C40C2939094777F94D70C582AB5" pageId="0" pageNumber="93">
The specific epithet refers to
<normalizedToken id="2D4545865C162DE43F139FBD75457F9B" originalValue="Maranhão">Maranhao</normalizedToken>
state, where the type specimens were collected.
</paragraph>
</subSubSection>
<subSubSection id="B5947772CEA137A5D6EE52B4E526A990" pageId="0" pageNumber="93" type="materials_examined">
<paragraph id="2D4426122E1A665A98969C6996A08E59" pageId="0" pageNumber="93">Additional specimens examined.</paragraph>
<paragraph id="0EE3CFA524CC81A68A0DA40908B6AAC7" pageId="0" pageNumber="93">
Brazil.
<normalizedToken id="B1B70E3CE4BCBA57EC53E129F3AECDD2" originalValue="Maranhão">Maranhao</normalizedToken>
: Carolina, Parque Nacional da Chapada das Mesas, 345 m elev.,
<geoCoordinate id="D3435243E9BB2E7F62FFBC0CD2423611" degrees="7" direction="south" minutes="14" orientation="latitude" precision="15" seconds="14" value="-7.237222">7°14'14&quot;S</geoCoordinate>
,
<geoCoordinate id="66AEEA5E7649C8E91B7029F949F920E8" degrees="46" direction="west" minutes="58" orientation="longitude" precision="15" seconds="50" value="-46.980556">46°58'50&quot;W</geoCoordinate>
, 07 April 2017 (fl.),
<emphasis id="7913E4F6A6C6A0559D302342D86997EF" italics="true" pageId="0" pageNumber="93">R.V.C. Saraiva 107</emphasis>
(SLUI 5037); Parque Nacional Chapada das Mesas, accesso no Km 596 da BR - 230, 7 km E em estrada vicinal, 290 m elev.,
<geoCoordinate id="31397767A21A66EC9419F79F09231DC4" degrees="7" direction="south" minutes="07" orientation="latitude" precision="15" seconds="33" value="-7.1258335">7°07'33&quot;S</geoCoordinate>
,
<geoCoordinate id="6C8F1A5C70E873C83C2F47933AA89A22" degrees="47" direction="west" minutes="22" orientation="longitude" precision="15" seconds="13" value="-47.370277">47°22'13&quot;W</geoCoordinate>
, 12 April 2016 (fl.),
<emphasis id="7628446FC51EA1AB33B0F335D77C35CF" italics="true" pageId="0" pageNumber="93">M.F. Simon et al. 2921</emphasis>
(CEN 95523).
</paragraph>
</subSubSection>
<subSubSection id="2DB1AFBD5C8092226FB12F72A0113D3F" pageId="0" pageNumber="93" type="conservation status">
<paragraph id="F48680B8DE01467196C9F057380E664A" pageId="0" pageNumber="93">Conservation status.</paragraph>
<paragraph id="D026EA2A93A33D592DE263487426C1DD" pageId="0" pageNumber="93">
We categorized this species as Endangered (criteria EN) according to B1 (EOO &lt;5000 km2) and B2ab (ii, iii) (AOO &lt;500 km2) from
<bibRefCitation id="306EA3DD9459BC6D108D77591536D63B" author="IUCN" journalOrPublisher="Spring Lake Publishing, Spring Lake, Utah" pageId="0" pageNumber="93" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B13" refString="IUCN, 2019. Guidelines for using the IUCN red list categories and criteria. Version 14. Standards and Petitions Committee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf" title="Guidelines for using the IUCN red list categories and criteria. Version 14. Standards and Petitions Committee." url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2019">IUCN (2019)</bibRefCitation>
. Although populations of
<taxonomicName id="2D2CF0CA67BB6AC3A5C851ABA7361DDD" lsidName="I. maranhensis" pageId="0" pageNumber="93" rank="species" species="maranhensis">
<emphasis id="B4C749339B8DA17049A60D0404BB61F5" italics="true" pageId="0" pageNumber="93">I. maranhensis</emphasis>
</taxonomicName>
occur in protected areas, this species is threatened due to the reduction of its habitat because of anthropogenic fires lit by small communities who remove vegetation with fire for subsistence agriculture in the Cerrado
<emphasis id="2BF257D1B6270FC931A065E662103394" italics="true" pageId="0" pageNumber="93">sensu stricto</emphasis>
and
<emphasis id="3EB1AE1030C97E45B78E2209142899C5" italics="true" pageId="0" pageNumber="93">
<normalizedToken id="5A57B6B0F645D11B899D045EE54DEB9C" originalValue="Cerradão">Cerradao</normalizedToken>
</emphasis>
formations (
<bibRefCitation id="334A264666A40B56AEF8F0230A0A3D3C" author="Ribeiro, JR" editor="Sano, SM" journalOrPublisher="Embrapa, Brasilia" pageId="0" pageNumber="93" pagination="151 - 212" refId="B31" refString="Ribeiro, JR, Walter, BMT, 2008. As principais fitofisionomias Cerrado. In: Sano, SM, Almeida, SP, Ribeiro, JF, Eds., Cerrado: Ecologia e Flora. Embrapa, Brasilia: 151 - 212" title="As principais fitofisionomias Cerrado." volumeTitle="Cerrado: Ecologia e Flora." year="2008">Ribeiro and Walter 2008</bibRefCitation>
). According to Estivalet (1997), prostrate or climbing plants seem to be more prone to burning than upright species, whose growth points are more protected inside the clump.
</paragraph>
</subSubSection>
</treatment>
</document>
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