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131 lines
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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.89.20388" ID-PMC="PMC5672149" ID-Pensoft-Pub="1314-2003-89-11" ID-Pensoft-UUID="9C1BFFADD6208818FFDAFFD9FC60390A" ID-PubMed="29118649" ID-Zenodo-Dep="1138297" ModsDocID="1314-2003-89-11" checkinTime="1509030994220" checkinUser="pensoft" docAuthor="Pellegrini, Marco O. O." docDate="2017" docId="10E322CD00E852C7879D02D770BAA404" docLanguage="en" docName="PhytoKeys 89: 11-72" docOrigin="PhytoKeys 89" docPubDate="2017-10-26" docSource="http://dx.doi.org/10.3897/phytokeys.89.20388" docTitle="Elasis D. R. Hunt, Kew Bull. 33 (2): 332. 1978." docType="treatment" docVersion="3" id="9C1BFFADD6208818FFDAFFD9FC60390A" lastPageNumber="29" masterDocId="9C1BFFADD6208818FFDAFFD9FC60390A" masterDocTitle="Morphological phylogeny of Tradescantia L. (Commelinaceae) sheds light on a new infrageneric classification for the genus and novelties on the systematics of subtribe Tradescantiinae" masterLastPageNumber="72" masterPageNumber="11" pageNumber="29" updateTime="1668142114453" 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>Morphological phylogeny of Tradescantia L. (Commelinaceae) sheds light on a new infrageneric classification for the genus and novelties on the systematics of subtribe Tradescantiinae</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>Pellegrini, Marco O. O.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8783-1362</mods:nameIdentifier>
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<mods:affiliation>Universidade de Sao Paulo, Departamento de Botanica, Rua do Matao 277, CEP 05508 - 900, Sao Paulo, SP, Brazil & Jardim Botanico do Rio de Janeiro, Rua Pacheco Leao 915, CEP 22460 - 030, Rio de Janeiro, RJ, Brazil & Current address: Smithsonian Institution, NMNH, Department of Botany, MRC 166, P. O. Box 37012, Washington D. C. 20013 - 7012, USA</mods:affiliation>
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<mods:nameIdentifier type="email">marcooctavio.pellegrini@gmail.com</mods:nameIdentifier>
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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>2017</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2017-10-26</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>89</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>11</mods:start>
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<mods:end>72</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.89.20388</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.89.20388</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-89-11</mods:identifier>
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<mods:identifier type="Pensoft-UUID">9C1BFFADD6208818FFDAFFD9FC60390A</mods:identifier>
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<mods:identifier type="Zenodo-Dep">1138297</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="182225711" LSID="urn:lsid:plazi:treatment:10E322CD00E852C7879D02D770BAA404" httpUri="http://treatment.plazi.org/id/10E322CD00E852C7879D02D770BAA404" lastPageNumber="29" pageId="18" pageNumber="29">
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<subSubSection pageId="18" pageNumber="29" type="nomenclature">
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<paragraph pageId="18" pageNumber="29">
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1.
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<taxonomicName LSID="10E322CD-00E8-52C7-879D-02D770BAA404" authority="D. R. Hunt, Kew Bull. 33 (2): 332. 1978." authorityName="D. R. Hunt, Kew Bull. 33 (2): 332. 1978." class="Liliopsida" family="Commelinaceae" genus="Elasis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Elasis" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">Elasis D.R.Hunt, Kew Bull. 33(2): 332. 1978.</taxonomicName>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Floral morphology of subtribe Tradescantiinae s. l. A Tinantia Scheidw B Thyrsanthemum Pichon C Weldenia Schult. f. D-I Callisia Loefl. s. l.: D Cuthbertia Small E Aploleia Raf. (i. e. C. sect. Leptocallisia s. s.) F Callisia s. s. (i. e. C. sect. Callisia) G Callisia sect. Brachyphylla D. R. Hunt H Hadrodemas H. E. Moore (i. e. C. sect. Hadrodemas) I-J Tripogandra Raf. s. l.: I Callisia sect. Leptocallisia pro parte J Tripogandra s. s. K-L Elasis D. R. Hunt: K E. hirsuta (Kunth) D. R. Hunt L E. guatemalensis C. B. Clarke ex Donn. Sm.) M. Pell M Matudanthus D. R. Hunt N Gibasis Raf. O-T Tradescantia L. emend. M. Pell.: O T. subg. Austrotradescantia P-Q T. subg. Campelia R T. subg. Mandonia S T. subg. Setcreasea T T. subg. Tradescantia. A by E. Barbier, B, L, P by P. Acevedo-Rodriguez, C by S. Cross, D by D. Rankin, E by J. Amith, F, J, N-O, Q-T by M. O. O. Pellegrini, G by S. Eduardo, H by C. Willemsen, I by B. E. Hammel, K by A. Kay, and M by A. Garcia Mendoza." figureDoi="10.3897/phytokeys.89.20388.figure6" httpUri="https://binary.pensoft.net/fig/164505" pageId="18" pageNumber="29">Fig. 6K-L</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="18" pageNumber="29" type="reference_group">
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<paragraph pageId="18" pageNumber="29">
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<taxonomicName class="Liliopsida" family="Commelinaceae" genus="Tradescantia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tradescantia subsp. sect." order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="section" section="Coholomia">Tradescantia sect. Coholomia</taxonomicName>
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D.R.Hunt, Kew Bull. 35(2): 440. 1980.,
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<emphasis bold="true" pageId="18" pageNumber="29">Syn. nov.</emphasis>
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Type species.
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<taxonomicName family="Commelinaceae" higherTaxonomySource="treatment-meta" kingdom="Plantae" lsidName="T. guatemalensis" order="Commelinales" pageId="18" pageNumber="29" rank="species" species="guatemalensis">T. guatemalensis</taxonomicName>
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C.B.Clarke
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<emphasis italics="true" pageId="18" pageNumber="29">ex</emphasis>
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Donn.Sm. [≡
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<taxonomicName family="Commelinaceae" higherTaxonomySource="treatment-meta" kingdom="Plantae" lsidName="E. guatemalensis" order="Commelinales" pageId="18" pageNumber="29" rank="species" species="guatemalensis">E. guatemalensis</taxonomicName>
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(C.B.Clarke
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<emphasis italics="true" pageId="18" pageNumber="29">ex</emphasis>
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Donn.Sm.) M.Pell.].
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</paragraph>
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</subSubSection>
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<subSubSection pageId="18" pageNumber="29" type="type species">
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<paragraph pageId="18" pageNumber="29">Type species.</paragraph>
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<paragraph pageId="18" pageNumber="29">
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<taxonomicName authorityName="D. R. Hunt" authorityYear="1978" baseAuthorityName="Kunth" class="Liliopsida" family="Commelinaceae" genus="Elasis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Elasis hirsuta" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="species" species="hirsuta">
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<emphasis italics="true" pageId="18" pageNumber="29">Elasis hirsuta</emphasis>
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</taxonomicName>
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(Kunth) D.R.Hunt (≡
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<taxonomicName class="Liliopsida" family="Commelinaceae" genus="Tradescantia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tradescantia hirsuta" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="species" species="hirsuta">
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<emphasis italics="true" pageId="18" pageNumber="29">Tradescantia hirsuta</emphasis>
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</taxonomicName>
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Kunth).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="18" pageNumber="29" type="comments">
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<paragraph pageId="18" pageNumber="29">Comments.</paragraph>
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<paragraph pageId="18" pageNumber="29">
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A taxonomic revision of
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<taxonomicName class="Liliopsida" family="Commelinaceae" genus="Elasis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Elasis" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Elasis</emphasis>
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</taxonomicName>
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is currently being prepared (Pellegrini and Hunt, in prep.) and should address pending taxonomic problems in the genus. In gross flower morphology,
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<taxonomicName class="Liliopsida" family="Commelinaceae" genus="Elasis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Elasis" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Elasis</emphasis>
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</taxonomicName>
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can be confused with
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<taxonomicName class="Liliopsida" family="Commelinaceae" genus="Tradescantia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tradescantia" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Tradescantia</emphasis>
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</taxonomicName>
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and most of its segregate genera (i.e. some species of
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<taxonomicName class="Monocotyledoneae" family="Commelinaceae" genus="Callisia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Callisia" order="Commelinales" pageId="18" pageNumber="29" phylum="Angiospermae" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Callisia</emphasis>
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</taxonomicName>
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,
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<taxonomicName class="Liliopsida" family="Commelinaceae" genus="Gibasis" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Gibasis" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Gibasis</emphasis>
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</taxonomicName>
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,
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<taxonomicName authorityName="D.R.Hunt" authorityYear="1978" class="Liliopsida" family="Commelinaceae" genus="Matudanthus" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Matudanthus" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Matudanthus</emphasis>
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</taxonomicName>
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,
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<taxonomicName authorityName="Pichon" authorityYear="1946" class="Liliopsida" family="Commelinaceae" genus="Thyrsanthemum" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Thyrsanthemum" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Thyrsanthemum</emphasis>
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</taxonomicName>
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,
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<taxonomicName authorityName="D.R.Hunt" authorityYear="1978" class="Monocotyledoneae" family="Commelinaceae" genus="Gibasoides" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Gibasoides" order="Commelinales" pageId="18" pageNumber="29" phylum="Angiospermae" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Gibasoides</emphasis>
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</taxonomicName>
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, and
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<taxonomicName authorityName="C.Wright" authorityYear="1871" class="Liliopsida" family="Pontederiaceae" genus="Sauvallea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Sauvallea" order="Commelinales" pageId="18" pageNumber="29" phylum="Magnoliophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Sauvallea</emphasis>
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</taxonomicName>
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). Nonetheless,
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<taxonomicName class="Liliopsida" family="Commelinaceae" genus="Elasis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Elasis" order="Commelinales" pageId="18" pageNumber="29" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="18" pageNumber="29">Elasis</emphasis>
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</taxonomicName>
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can be easily differentiated from these genera due to its sessile inflorescence, with 1-several fasciculate, non-geniculate cincinni, pedicellate flowers, petals lacking tannin cells, inconspicuous connectives, and truncate stigma (Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Majority-rule tree showing the relation between the genera in the Tradescantia alliance, highlighting the reproductive synapomorphies recovered for each lineage. Synapomorphies for Tinantia (clade A): cincinni verticillate, flowers zygomorphic, filaments sigmoid, anthers dimorphic with inconspicuous connectives, style sigmoid, stigma truncate, and hilum C-shaped. Synapomorphy for clade B: basal bract inconspicuous and tubular. Synapomorphies for Elasis s. l. (clade C): cincinni fasciculate, flowers actinomorphic, filaments sigmoid, anthers dimorphic, style sigmoid, and stigma truncate. Synapomorphies for clade D: double-cincinni fused back to back. Synapomorphies for clade E: seeds triangular to round triangular or tetrahedral, ventrally ridged, hilum elliptic or punctate, and leaf epidermis with silica crystals in specialized cells with thickened cell walls. Synapomorphies for Callisia s. s. (clade F): inflorescences mainly axillary, bracteoles conspicuous, pedicels apically non-gibbous, and penicilliform stigma. Synapomorphies for Tripogandra s. l. (clade G): floral display with a 60 ° torsion, petals ranging from pink to lilac to purple, antesepalous filaments shorter than the antepetalous, and filaments sigmoid at anthesis and post-anthesis. Synapomorphies for Tradescantia s. s. (clade H): double-cincinni fused back to back; frondose cincinni bracts, pedicels deflexed at post-anthesis, seeds elliptic to oblong in outline, ventrally flattened, hilum linear and longer than 1 / 2 the length of the seed, leaf epidermis lacking silica bodies in specialized cells, and diffuse bundle sheath in the mesophyll. Synapomorphies for T. subg. Austrotradescantia (clade I): sepals elliptic to broadly elliptic, all keeled, filaments basally and densely bearded with long moniliform hairs, style obconic at base and conic at apex, and stigma punctate with type D papillae. Synapomorphies for clade J: overlapping cincinni bracts, conspicuous bracteoles sometimes completely involving the cincinnus, membranous sepals, stigmatic papillae equal or shorter than 1 μm, and conspicuous embryotega. Synapomorphies for T. subg. Campelia (clade K): synflorescence with one or more coflorescences, presence of peduncle bracts, presence of supernumerary bracts, spathaceous cincinni bracts, flowers with pedicels geniculate at anthesis and pre-anthesis, unequal sepals, androecium with filaments from external series shorter than the internal, pollen white in vivo, pistil longer than the stamens, and semilateral embryotega. Synapomorphies for Core T radescantia (clade L): petals ranging from lilac to purple or pink, connectives quadrangular to rectangular to slightly curved, anther sacs C-shaped, and pistil the same length as the stamens. Synapomorphies for T. subg. Tradescantia (clade M): pedicels apically non-gibbous, filaments densely bearded with moniliform hairs, and stigmatic papillae restricted to the margins of the stigma. Synapomorphies for clade N: ovary pubescent with eglandular hairs; hilum shorter than 1 / 2 the length of the seed. Synapomorphies for T. subg. Mandonia (clade O): inflorescences mainly axillary, sessile main florescences, the presence of supernumerary bracts, reduced cincinni bracts, cincinni bracts not overlapping, chartaceous sepals, filaments apically spirally-coiled at post-anthesis, style 1 / 2 time longer than the stamens, and style spirally-coiled at post-anthesis. Synapomorphies for T. subg. Setcreasea (clade P): saccate cincinni bracts, tubular flowers, pedicel the same length as the floral buds, hyaline sepals, fused petals, clawed petals, and epipetalous stamens." figureDoi="10.3897/phytokeys.89.20388.figure5" httpUri="https://binary.pensoft.net/fig/164504" pageId="18" pageNumber="29">5</figureCitation>
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, clade C; Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Floral morphology of subtribe Tradescantiinae s. l. A Tinantia Scheidw B Thyrsanthemum Pichon C Weldenia Schult. f. D-I Callisia Loefl. s. l.: D Cuthbertia Small E Aploleia Raf. (i. e. C. sect. Leptocallisia s. s.) F Callisia s. s. (i. e. C. sect. Callisia) G Callisia sect. Brachyphylla D. R. Hunt H Hadrodemas H. E. Moore (i. e. C. sect. Hadrodemas) I-J Tripogandra Raf. s. l.: I Callisia sect. Leptocallisia pro parte J Tripogandra s. s. K-L Elasis D. R. Hunt: K E. hirsuta (Kunth) D. R. Hunt L E. guatemalensis C. B. Clarke ex Donn. Sm.) M. Pell M Matudanthus D. R. Hunt N Gibasis Raf. O-T Tradescantia L. emend. M. Pell.: O T. subg. Austrotradescantia P-Q T. subg. Campelia R T. subg. Mandonia S T. subg. Setcreasea T T. subg. Tradescantia. A by E. Barbier, B, L, P by P. Acevedo-Rodriguez, C by S. Cross, D by D. Rankin, E by J. Amith, F, J, N-O, Q-T by M. O. O. Pellegrini, G by S. Eduardo, H by C. Willemsen, I by B. E. Hammel, K by A. Kay, and M by A. Garcia Mendoza." figureDoi="10.3897/phytokeys.89.20388.figure6" httpUri="https://binary.pensoft.net/fig/164505" pageId="18" pageNumber="29">6K-L</figureCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |