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<document id="8241EB28002F24B191ED1103CC13268D" ID-DOI="10.11646/phytotaxa.670.2.4" ID-ISSN="1179-3163" ID-Zenodo-Dep="14520102" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1734553308120" checkinUser="felipe" docAuthor="Costa, Suzana Maria, Thomas, William Wayt &amp; Amaral, Maria Do Carmo Estanislau Do" docDate="2024" docId="0388272CFFBC3756B6F9FCB5FBFEF83C" docLanguage="en" docName="phytotaxa.670.2.119-126.pdf" docOrigin="Phytotaxa 670 (2)" docSource="https://doi.org/10.11646/phytotaxa.670.2.4" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Cephalocarpus chimantensis S. M. Costa 2024, sp. nov." docType="treatment" docVersion="3" lastPageNumber="120" masterDocId="FFB15F54FFBD3757B671FFC9FFA9FFCE" masterDocTitle="Four new species from Venezuela and identification key to Cephalocarpus (Cryptangieae, Cyperaceae)" masterLastPageNumber="126" masterPageNumber="119" pageNumber="120" updateTime="1734559375791" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="CD2B9C988967263D55540BF9F85EA604">Four new species from Venezuela and identification key to Cephalocarpus (Cryptangieae, Cyperaceae)</mods:title>
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<mods:namePart id="DA41A67940F3E72F0C8F0B59AC2A149A">Costa, Suzana Maria</mods:namePart>
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<mods:namePart id="E57A6164C0B774D559C96F446E4058FB">Thomas, William Wayt</mods:namePart>
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<mods:namePart id="A068D66E1395E24F774B13FD992EE78F">Amaral, Maria Do Carmo Estanislau Do</mods:namePart>
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<mods:date id="E6B77E66DE54BB5571DC6DEDA91D7EBC">2024</mods:date>
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<treatment id="0388272CFFBC3756B6F9FCB5FBFEF83C" ID-DOI="http://doi.org/10.5281/zenodo.14520330" ID-Zenodo-Dep="14520330" LSID="urn:lsid:plazi:treatment:0388272CFFBC3756B6F9FCB5FBFEF83C" httpUri="http://treatment.plazi.org/id/0388272CFFBC3756B6F9FCB5FBFEF83C" lastPageNumber="120" pageId="1" pageNumber="120">
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<emphasis id="B9554A28FFBC3756B6F9FCB5FF37FC58" bold="true" box="[136,158,892,918]" pageId="1" pageNumber="120">1.</emphasis>
<taxonomicName id="4C21EDB9FFBC3756B6D5FCB5FDD8FC58" authority="S.M.Costa" authorityName="S. M. Costa" authorityYear="2024" box="[164,625,892,919]" class="Liliopsida" family="Cyperaceae" genus="Cephalocarpus" kingdom="Plantae" order="Poales" pageId="1" pageNumber="120" phylum="Tracheophyta" rank="species" species="chimantensis" status="sp. nov.">
<emphasis id="B9554A28FFBC3756B6D5FCB5FE58FC59" bold="true" box="[164,497,892,919]" italics="true" pageId="1" pageNumber="120">Cephalocarpus chimantensis</emphasis>
S.M.Costa
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,
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<taxonomicNameLabel id="A266F753FFBC3756B40CFCB4FD7BFC58" box="[637,722,893,918]" pageId="1" pageNumber="120" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="131A8ABFFFBC3756B491FCB5FCC8FC58" box="[736,865,892,918]" captionStart="FIGURE 1" captionStartId="2.[136,229,1283,1305]" captionTargetBox="[162,1425,190,1261]" captionTargetId="figure-21@2.[151,1436,179,1262]" captionTargetPageId="2" captionText="FIGURE 1. Male and female spikelets and fruits of Cephalocarpus spp. nov. A. C. chimantensis S.M.Costa; B. C. marahuacensis S.M.Costa; C. C. martinhae S.M.Costa; D. C. pyramidalis S.M.Costa (black bars = 1 mm; drawings of SMC)." figureDoi="http://doi.org/10.5281/zenodo.14520104" httpUri="https://zenodo.org/record/14520104/files/figure.png" pageId="1" pageNumber="120">Figures 1A</figureCitation>
,
<figureCitation id="131A8ABFFFBC3756B51CFCB5FC38FC58" box="[877,913,892,918]" captionStart="FIGURE 2" captionStartId="3.[136,229,1195,1217]" captionTargetBox="[176,1397,524,1154]" captionTargetId="figure-144@3.[151,1436,497,1171]" captionTargetPageId="3" captionText="FIGURE 2. Currently known distribution maps of Cephalocarpus spp. nov. A. C. chimantensis S.M.Costa; B. C. marahuacensis S.M.Costa; C. C. martinhae S.M.Costa; D. C. pyramidalis S.M.Costa." figureDoi="http://doi.org/10.5281/zenodo.14520106" httpUri="https://zenodo.org/record/14520106/files/figure.png" pageId="1" pageNumber="120">2A</figureCitation>
,
<figureCitation id="131A8ABFFFBC3756B5ECFCB5FC6AFC58" box="[925,963,892,918]" captionStart="FIGURE 3" captionStartId="4.[136,229,1952,1974]" captionTargetBox="[211,1376,197,1914]" captionTargetId="figure-21@4.[201,1386,187,1924]" captionTargetPageId="4" captionText="FIGURE 3. Holotypes of Cephalocarpus spp. nov. A. Cephalocarpus chimantensis S.M. Costa; B. Cephalocarpus marahuacensis S.M. Costa; C. Cephalocarpus martinhae S.M. Costa; D. Cephalocarpus pyramidalis S.M. Costa. (images from the NYBG C.V. Starr Virtual Herbarium)." figureDoi="http://doi.org/10.5281/zenodo.14520108" httpUri="https://zenodo.org/record/14520108/files/figure.png" pageId="1" pageNumber="120">3A</figureCitation>
).
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<paragraph id="8B9E963AFFBC3756B6F9FC01FDF3FBE8" blockId="1.[136,1452,968,1170]" pageId="1" pageNumber="120">
Similar to
<taxonomicName id="4C21EDB9FFBC3756B681FC01FD88FC13" authorityName="Gilly ex Gleason &amp; Killip" authorityYear="1939" box="[240,545,968,989]" class="Liliopsida" family="Cyperaceae" genus="Cephalocarpus" kingdom="Plantae" order="Poales" pageId="1" pageNumber="120" phylum="Tracheophyta" rank="species" species="longibracteatus">
<emphasis id="B9554A28FFBC3756B681FC01FD88FC13" box="[240,545,968,989]" italics="true" pageId="1" pageNumber="120">Cephalocarpus longibracteatus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C21EDB9FFBC3756B423FC01FD1DFC13" authorityName="Gilly ex Gleason &amp; Killip" authorityYear="1939" box="[594,692,968,989]" class="Liliopsida" family="Cyperaceae" genus="Cephalocarpus" kingdom="Plantae" order="Poales" pageId="1" pageNumber="120" phylum="Tracheophyta" rank="species" species="rigidus">
<emphasis id="B9554A28FFBC3756B423FC01FD1DFC13" box="[594,692,968,989]" italics="true" pageId="1" pageNumber="120">C. rigidus</emphasis>
</taxonomicName>
, regarding the arrangement of leaves and inflorescence, but differs from both species by the developed peduncle of the spikelets, fruits (up to
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long) with truncate apex and short conical beak without narrow neck between main body and beak.
</paragraph>
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Type specimen:—
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.
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:
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,
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,
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oriental del
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, cabeceras del afluente derecho superior del
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(“
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”),
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.
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.Steyermark 128931 &amp;
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. Huber,
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.Carreño
</emphasis>
(
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!
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;
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?)
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<paragraph id="8B9E963AFFBC3756B6F9FB09FCBFF9A8" blockId="1.[136,1452,1216,2035]" pageId="1" pageNumber="120">
Monoecious herb: sexes intermingled at paracladia, monomorphic. Caudex ~
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diam. (
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diam. including sheaths remains and adventitious roots). Leaf: sheath pubescent, greenish or brown; blade 34.5 ×
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, linear-lanceolate, margins and midrib glabrous or sparsely pubescent, concolorous, greenish to reddish-brown after drying. Inflorescence panicle-like, with 2 paracladia; culm 3 4.5 ×
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, compressed, glabrous or with rare trichomes. Paracladia (lowermost) up to
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long, 1 order; peduncle up to
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long, compressed, glabrous to sparsely ciliate. Involucral bract (lowermost) leaf-like: sheath up to
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long, pubescent, reddish-brown; blade
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long, “M”-shaped, pubescent, reddish-brown to brownish-green. Male spikelet 3.54.5 ×
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, 56 glumes, 12 flowers; glume (outermost)
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long, mucronate (mucron up to ~
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long); stamens 2, connective projection not observed. Female spikelet ~4 × ~
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, 45 glumes; glume (outermost)
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long, mucronate (mucron up to ~
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long); stigmas 3. Fruit 1.3 1.5 ×
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, obtriangular, smooth, short ciliolate at apex, reddish-brown, with truncate apex; hypogynous scale ~
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long, elliptic to orbicular, trichomes &lt;
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long (sparse); beak ~
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long, short conical, glabrous.
</paragraph>
<paragraph id="8B9E963AFFBC3756B6CCF9B9FADEF944" blockId="1.[136,1452,1216,2035]" box="[189,1399,1648,1675]" pageId="1" pageNumber="120">
Etymology:—The name of the species refers to the
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locality, the
<emphasis id="B9554A28FFBC3756B5B1F9B9FB87F944" box="[960,1070,1648,1674]" italics="true" pageId="1" pageNumber="120">Chimantá</emphasis>
Massif (
<collectingRegion id="49E558D8FFBC3756B2E0F9B9FB41F944" box="[1169,1256,1648,1674]" country="Venezuela" name="Bolivar" pageId="1" pageNumber="120">Bolívar</collectingRegion>
,
<collectingCountry id="F336D6AAFFBC3756B282F9B9FAC5F944" box="[1267,1388,1648,1674]" name="Venezuela" pageId="1" pageNumber="120">Venezuela</collectingCountry>
).
</paragraph>
<paragraph id="8B9E963AFFBC3756B6CCF95DFE64F91C" blockId="1.[136,1452,1216,2035]" pageId="1" pageNumber="120">
Distribution:—This species is known only from its
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locality, in the
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Massif (
<collectingRegion id="49E558D8FFBC3756B2DAF95DFAABF960" box="[1195,1282,1684,1710]" country="Venezuela" name="Bolivar" pageId="1" pageNumber="120">Bolívar</collectingRegion>
,
<collectingCountry id="F336D6AAFFBC3756B37CF95DFA2CF960" box="[1293,1413,1684,1710]" name="Venezuela" pageId="1" pageNumber="120">Venezuela</collectingCountry>
), at altitudes above
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high.
</paragraph>
<paragraph id="8B9E963AFFBC3756B6CCF915FB97F8AC" blockId="1.[136,1452,1216,2035]" pageId="1" pageNumber="120">
Taxonomic notes:—
<taxonomicName id="4C21EDB9FFBC3756B7D6F915FD5BF938" authorityName="S. M. Costa" authorityYear="2024" box="[423,754,1756,1782]" class="Liliopsida" family="Cyperaceae" genus="Cephalocarpus" kingdom="Plantae" order="Poales" pageId="1" pageNumber="120" phylum="Tracheophyta" rank="species" species="chimantensis">
<emphasis id="B9554A28FFBC3756B7D6F915FD5BF938" box="[423,754,1756,1782]" italics="true" pageId="1" pageNumber="120">Cephalocarpus chimantensis</emphasis>
</taxonomicName>
is morphologically similar to
<taxonomicName id="4C21EDB9FFBC3756B214F915FE4FF8D5" authority="Gilly ex Gleason &amp; Killip (1939: 153)" authorityName="Gilly ex Gleason &amp; Killip" authorityPageNumber="153" authorityYear="1939" class="Liliopsida" family="Cyperaceae" genus="Cephalocarpus" kingdom="Plantae" order="Poales" pageId="1" pageNumber="120" phylum="Tracheophyta" rank="species" species="longibracteatus">
<emphasis id="B9554A28FFBC3756B214F915FA94F938" box="[1125,1341,1756,1782]" italics="true" pageId="1" pageNumber="120">C. longibracteatus</emphasis>
Gilly ex
<bibRefCitation id="EFB0EBCBFFBC3756B6F9F8C9FE4FF8D5" author="Gleason, H. A. &amp; Killip, E. P." box="[136,486,1792,1819]" pageId="1" pageNumber="120" pagination="141 - 204" refId="ref5325" refString="Gleason, H. A. &amp; Killip, E. P. (1939) The Flora of Mount Auyan-tepui, Venezuela. Brittonia 3: 141 - 204." type="journal article" year="1939">Gleason &amp; Killip (1939: 153)</bibRefCitation>
</taxonomicName>
and
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<emphasis id="B9554A28FFBC3756B453F8C9FD3DF8D4" box="[546,660,1792,1818]" italics="true" pageId="1" pageNumber="120">C. rigidus</emphasis>
Gilly ex
<bibRefCitation id="EFB0EBCBFFBC3756B575F8C9FBF2F8D5" author="Gleason, H. A. &amp; Killip, E. P." box="[772,1115,1792,1819]" pageId="1" pageNumber="120" pagination="141 - 204" refId="ref5325" refString="Gleason, H. A. &amp; Killip, E. P. (1939) The Flora of Mount Auyan-tepui, Venezuela. Brittonia 3: 141 - 204." type="journal article" year="1939">Gleason &amp; Killip (1939: 152)</bibRefCitation>
</taxonomicName>
, but differs from both by the presence of a peduncle up to
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long below the spikelets (sessile in the other two species), and the fruit with a short conical beak and lacking the narrow neck between the beak and the main body.
</paragraph>
<paragraph id="8B9E963AFFBC3756B6CCF8A5FBFEF83C" blockId="1.[136,1452,1216,2035]" pageId="1" pageNumber="120">
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<collectingCounty id="62FFEEB6FFBC3756B6CCF8A5FE32F848" box="[189,411,1900,1926]" pageId="1" pageNumber="120">Examined Material</collectingCounty>
(additional):—
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.
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:
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,
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,
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oriental del
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, cabeceras del afluente derecho superior del
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(“
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”),
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</quantity>
,
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,
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</date>
,
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<collectionCode id="ED300EFFFFBC3756B7F1F87DFE3EF800" box="[384,407,1972,1998]" country="Norway" lsid="urn:lsid:biocol.org:col:13093" name="Botanical Museum - University of Oslo" pageId="1" pageNumber="120" type="Herbarium">O</collectionCode>
. Huber 7183 &amp;
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.
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.Steyermark
</emphasis>
(
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!)
</materialsCitation>
;
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<collectingMunicipality id="6BFA0C40FFBC3756B516F87DFB84F800" box="[871,1069,1972,1998]" pageId="1" pageNumber="120">Chimantá Massif</collectingMunicipality>
, east-south portion of summit of
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tepui,
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</quantity>
,
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</date>
,
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<collectionCode id="ED300EFFFFBC3756B4D9F811FD11F83C" box="[680,696,2008,2034]" country="South Africa" lsid="urn:lsid:biocol.org:col:14647" name="University of the Witwatersrand" pageId="1" pageNumber="120" type="Herbarium">J</collectionCode>
.
<collectionCode id="ED300EFFFFBC3756B4CDF811FD79F83C" box="[700,720,2008,2034]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="1" pageNumber="120" type="Herbarium">A</collectionCode>
. Steyermark 75933
</emphasis>
(
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! 2 sheets)
</materialsCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>