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<document id="79CDB9726C80F28A040E4D211BAAA0FE" ID-DOI="10.11646/phytotaxa.345.3.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="13708555" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1725593001619" checkinUser="felipe" docAuthor="Acosta-Calderón, Julio Adulfo, Hernández-Rodríguez, César, Mendoza-González, Ángela Catalina &amp; Mateo-Cid, Luz Elena" docDate="2018" docId="2415879BFFDAFF87FF1C006107D19E5C" docLanguage="en" docName="phytotaxa.345.3.1.pdf" docOrigin="Phytotaxa 345 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.345.3.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Udotea cyathiformis var. flabellifolia D. S. Littler &amp; M. M. Littler 1990" docType="treatment" docVersion="2" lastPageNumber="198" masterDocId="D82CFFE3FFCBFF94FF94060306789D1D" masterDocTitle="Diversity and distribution of Udotea genus J. V. Lamouroux (Chlorophyta, Udoteaceae) in the Yucatan peninsula littoral, Mexico" masterLastPageNumber="218" masterPageNumber="179" pageNumber="196" updateTime="1725604391108" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="0B12C02E9B3A37C2ADEF28FF8E870519">Diversity and distribution of Udotea genus J. V. Lamouroux (Chlorophyta, Udoteaceae) in the Yucatan peninsula littoral, Mexico</mods:title>
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<mods:namePart id="EC52057A2EB02C4A4315B816F0507E02">Acosta-Calderón, Julio Adulfo</mods:namePart>
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<mods:namePart id="9FBCCC218E8F1772358525460AA566DB">Hernández-Rodríguez, César</mods:namePart>
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<paragraph id="AC03368DFFDAFF85FF1C006105A59B60" blockId="17.[136,989,1634,1661]" box="[136,989,1634,1661]" pageId="17" pageNumber="196">
<heading id="F74B81E1FFDAFF85FF1C006105A59B60" box="[136,989,1634,1661]" fontSize="11" level="2" pageId="17" pageNumber="196" reason="3">
<treatmentCitationGroup id="8CAC11A3FFDAFF85FF1C006105A59B60" box="[136,989,1634,1661]" pageId="17" pageNumber="196">
<treatmentCitation id="2D1D109CFFDAFF85FF1C006105A59B60" author="Littler, D. S. &amp; Littler, M. M." box="[136,989,1634,1661]" page="220" pageId="17" pageNumber="196" year="1990">
<taxonomicName id="6BBC4D0EFFDAFF85FF1C006105A59B60" authority="D. S. Littler &amp; M. M. Littler 1990: 220" authorityName="D. S. Littler &amp; M. M. Littler" authorityPageNumber="220" authorityYear="1990" box="[136,989,1634,1661]" class="Ulvophyceae" family="Udoteaceae" genus="Udotea" kingdom="Plantae" order="Bryopsidales" pageId="17" pageNumber="196" phylum="Chlorophyta" rank="variety" species="cyathiformis" variety="flabellifolia">
<emphasis id="9EC8EA9FFFDAFF85FF1C0061070B9B60" bold="true" box="[136,371,1634,1661]" italics="true" pageId="17" pageNumber="196">Udotea cyathiformis</emphasis>
var. 
<emphasis id="9EC8EA9FFFDAFF85FE3D006104579B60" bold="true" box="[425,559,1634,1661]" italics="true" pageId="17" pageNumber="196">flabellifolia</emphasis>
D.S. Littler &amp; M.M. 
<bibRefCitation id="C82D4B7CFFDAFF85FCB4006705A59B60" author="Littler, D. S. &amp; Littler, M. M." box="[800,989,1636,1661]" pageId="17" pageNumber="196" pagination="206 - 252" refId="ref23809" refString="Littler, D. S. &amp; Littler, M. M. (1990) Systematics of Udotea (Bryopsidales, Chlorophyta) in the tropical western Atlantic. Phycologia 29: 206 - 252. https: // doi. org / 10.2216 / i 0031 - 8884 - 29 - 2 - 206.1" type="journal article" year="1990">Littler 1990: 220</bibRefCitation>
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<paragraph id="AC03368DFFDAFF85FF1C00AF04019BD8" blockId="17.[136,1452,1708,2086]" box="[136,633,1708,1733]" pageId="17" pageNumber="196">
<typeStatus id="7307882FFFDAFF85FF1C00AF06B89BD8" box="[136,192,1708,1733]" pageId="17" pageNumber="196">Type</typeStatus>
locality:— 
<collectingCountry id="D4AB761DFFDAFF85FEAF00AF07C19BD8" box="[315,441,1708,1733]" name="Panama" pageId="17" pageNumber="196">PANAMA</collectingCountry>
. San Blas Island.
</paragraph>
<paragraph id="AC03368DFFDAFF85FF2900D305A99A4E" blockId="17.[136,1452,1708,2086]" pageId="17" pageNumber="196">
<emphasis id="9EC8EA9FFFDAFF85FF2900D3073F9BF4" box="[189,327,1744,1769]" italics="true" pageId="17" pageNumber="196">Morphology</emphasis>
:—Thalli to 
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tall, anchored on substrata by a bulbous rhizoidal mass. Stipe cylindrical 
<quantity id="6B449B68FFDAFF85FAF200D306CC9A11" metricMagnitude="-2" metricUnit="m" metricValue="1.25" metricValueMax="1.5" metricValueMin="1.0" pageId="17" pageNumber="196" unit="mm" value="12.5" valueMax="15.0" valueMin="10.0">10–15 mm</quantity>
length, 
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diameter, and flattening towards the blade. Evident transition between the stipe and blade. Blade fan-shaped or orbicular, grass green, slightly wider (
<quantity id="6B449B68FFDAFF85FD4C0114053C9A2D" box="[728,836,1815,1840]" metricMagnitude="-2" metricUnit="m" metricValue="4.75" metricValueMax="8.0" metricValueMin="1.5" pageId="17" pageNumber="196" unit="cm" value="4.75" valueMax="8.0" valueMin="1.5">1.5–8 cm</quantity>
) than longer (
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), lower margin ovate o truncate, multistratose, ecorticate, lightly calcified, and clearly zonate (Figs. 31, 32).
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<emphasis id="9EC8EA9FFFDAFF85FF29015E07529A6B" box="[189,298,1885,1910]" italics="true" pageId="17" pageNumber="196">Anatomy:</emphasis>
<emphasis id="9EC8EA9FFFDAFF85FEBE015E073E9A6B" bold="true" box="[298,326,1885,1910]" pageId="17" pageNumber="196">—</emphasis>
Blade siphons without lateral appendages, dichotomously branched, 45–55 μm in diameter, one of the siphons of the dichotomy gives rise to another dichotomy and the other continues to grow thus forming sub-dichotomies (Fig. 33). Distance between each dichotomy varies from 1300 to 2500 μm, supra dichotomous constrictions 19–27 μm length, 15–25 μm in diameter. Stipe siphons adjacent to lateral appendages 50–74 μm in diameter, appendages peduncle 70–250 μm length, 25–40 μm in diameter. Appendices arranged irregularly and dichotomously branched 2–3 times, with distorted digitate apices (
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).
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<emphasis id="9EC8EA9FFFD9FF86FF1C018A07689A83" bold="true" box="[136,272,1929,1950]" pageId="18" pageNumber="197">FIGURES 34</emphasis>
. 
<taxonomicName id="6BBC4D0EFFD9FF86FE88018A04289A83" box="[284,592,1929,1950]" class="Ulvophyceae" family="Udoteaceae" genus="Udotea" kingdom="Plantae" order="Bryopsidales" pageId="18" pageNumber="197" phylum="Chlorophyta" rank="variety" species="cyathiformis" variety="flabellifolia">
<emphasis id="9EC8EA9FFFD9FF86FE88018A07C99A83" box="[284,433,1929,1950]" italics="true" pageId="18" pageNumber="197">U. cyathiformis</emphasis>
var. 
<emphasis id="9EC8EA9FFFD9FF86FE74018A04289A83" box="[480,592,1929,1950]" italics="true" pageId="18" pageNumber="197">flabellifolia</emphasis>
</taxonomicName>
. 34) stipe lateral appendages. 
<emphasis id="9EC8EA9FFFD9FF86FCE5018A02669A83" bold="true" box="[881,1054,1929,1950]" pageId="18" pageNumber="197">FIGURES 35–40</emphasis>
. 
<taxonomicName id="6BBC4D0EFFD9FF86FBBE018A02F29A83" box="[1066,1162,1929,1950]" class="Ulvophyceae" family="Udoteaceae" genus="Udotea" kingdom="Plantae" order="Bryopsidales" pageId="18" pageNumber="197" phylum="Chlorophyta" rank="species" species="dixonii">
<emphasis id="9EC8EA9FFFD9FF86FBBE018A02F29A83" box="[1066,1162,1929,1950]" italics="true" pageId="18" pageNumber="197">U. dixonii</emphasis>
</taxonomicName>
. 35–37) external morphology, 38) blade siphon showing the opposite lateral appendages, 39) blade lateral appendages, 40) stipe lateral appendages. 
<emphasis id="9EC8EA9FFFD9FF86FB6C01AE03DD9ADF" bold="true" box="[1272,1445,1965,1986]" pageId="18" pageNumber="197">FIGURES 41–42</emphasis>
. 
<taxonomicName id="6BBC4D0EFFD9FF86FF1C01D206AD9AFB" authorityName="D. S. Littler &amp; M. M. Littler" authorityYear="1990" box="[136,213,2001,2022]" class="Ulvophyceae" family="Udoteaceae" genus="Udotea" kingdom="Plantae" order="Bryopsidales" pageId="18" pageNumber="197" phylum="Chlorophyta" rank="species" species="dotyi">
<emphasis id="9EC8EA9FFFD9FF86FF1C01D206AD9AFB" box="[136,213,2001,2022]" italics="true" pageId="18" pageNumber="197">U. dotyi</emphasis>
</taxonomicName>
. 41) external morphology, 42) blade siphons showing the lateral appendages arrangement.
</paragraph>
</caption>
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<emphasis id="9EC8EA9FFFD8FF87FF2906A307269DA4" box="[189,350,160,185]" italics="true" pageId="19" pageNumber="198">Reproduction:</emphasis>
<emphasis id="9EC8EA9FFFD8FF87FECA06A307029DA4" bold="true" box="[350,378,160,185]" pageId="19" pageNumber="198">—</emphasis>
Vegetative.
</paragraph>
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<emphasis id="9EC8EA9FFFD8FF87FF2906C707E89DC0" box="[189,400,196,221]" italics="true" pageId="19" pageNumber="198">Material examined</emphasis>
:— 
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. 
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, Santa Rosa, 
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, 
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. 
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. Acosta Calderón, 
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. 
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. Mateo Cid, 
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. 
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. Mendoza González, 
<collectionCode id="CAADAE48FFD8FF87FE4106EB04589C1C" box="[469,544,232,257]" country="Mexico" httpUri="http://grbio.org/cool/1x45-fdpe" name="Universidad de Autonoma de Baja California" pageId="19" pageNumber="198">ENCB</collectionCode>
23110. 
<collectingCountry id="D4AB761DFFD8FF87FDE106EB049F9C1C" box="[629,743,232,257]" name="Mexico" pageId="19" pageNumber="198">MEXICO</collectingCountry>
. 
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, Santa Rosa, 
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, 
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. 
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.Acosta Calderón, 
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. 
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. Mendoza González, 
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23107.
</paragraph>
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<emphasis id="9EC8EA9FFFD8FF87FF29040B07AE9F3C" box="[189,470,520,545]" italics="true" pageId="19" pageNumber="198">Geographic distribution:</emphasis>
<emphasis id="9EC8EA9FFFD8FF87FE42040B078A9F3C" bold="true" box="[470,498,520,545]" pageId="19" pageNumber="198">—</emphasis>
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, 
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, 
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.
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<paragraph id="AC03368DFFD8FF87FF29042F03E49F58" blockId="19.[136,1452,160,833]" box="[189,1436,556,581]" pageId="19" pageNumber="198">
<emphasis id="9EC8EA9FFFD8FF87FF29042F076B9F58" box="[189,275,556,581]" italics="true" pageId="19" pageNumber="198">Habitat</emphasis>
: 
<emphasis id="9EC8EA9FFFD8FF87FE8F042F074F9F58" bold="true" box="[283,311,556,581]" pageId="19" pageNumber="198">—</emphasis>
Rocky in reef lagoons and sandy bottoms associated with sea grass meadows. Subtidal to 
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depth.
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<emphasis id="9EC8EA9FFFD8FF87FF29045307219F74" box="[189,345,591,617]" italics="true" pageId="19" pageNumber="198">
Comments: 
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</emphasis>
<taxonomicName id="6BBC4D0EFFD8FF87FECD045305799F74" box="[345,769,592,617]" class="Ulvophyceae" family="Udoteaceae" genus="Udotea" kingdom="Plantae" order="Bryopsidales" pageId="19" pageNumber="198" phylum="Chlorophyta" rank="variety" species="cyathiformis" variety="flabellifolia">
<emphasis id="9EC8EA9FFFD8FF87FECD045304399F74" box="[345,577,592,617]" italics="true" pageId="19" pageNumber="198">Udotea cyathiformis</emphasis>
var. 
<emphasis id="9EC8EA9FFFD8FF87FDEA045305799F74" box="[638,769,592,617]" italics="true" pageId="19" pageNumber="198">flabellifolia</emphasis>
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is distinguished by flabellate blade and the deformed stipe appendages in comparison with the cup shape of the parental specie (
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<emphasis id="9EC8EA9FFFD8FF87FC22047702109F90" box="[950,1128,628,653]" italics="true" pageId="19" pageNumber="198">U. cyathiformis</emphasis>
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) and spatulate shape of the 
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<emphasis id="9EC8EA9FFFD8FF87FF1C049B07779FAC" box="[136,271,664,689]" italics="true" pageId="19" pageNumber="198">sublittoralis</emphasis>
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form. The shape of the stipe appendages agrees which those described by 
<bibRefCitation id="C82D4B7CFFD8FF87FBC5049B032E9FAC" author="Littler, D. S. &amp; Littler, M. M." box="[1105,1366,664,689]" pageId="19" pageNumber="198" pagination="206 - 252" refId="ref23809" refString="Littler, D. S. &amp; Littler, M. M. (1990) Systematics of Udotea (Bryopsidales, Chlorophyta) in the tropical western Atlantic. Phycologia 29: 206 - 252. https: // doi. org / 10.2216 / i 0031 - 8884 - 29 - 2 - 206.1" type="journal article" year="1990">Littler &amp; Littler (1990)</bibRefCitation>
. Santos &amp; Nunes (2014) provided detailed information about the morphology of this taxon and its occurrence in 
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. This taxon has been recorded only in the Quintana Roo coast (
<bibRefCitation id="C82D4B7CFFD8FF87FCC304E302E69FE4" author="Acosta-Calderon, J. A. &amp; Mateo-Cid, L. E. &amp; Mendoza-Gonzalez, A. C." box="[855,1182,736,761]" pageId="19" pageNumber="198" pagination="1 - 15" refId="ref20749" refString="Acosta-Calderon, J. A., Mateo-Cid, L. E. &amp; Mendoza-Gonzalez, A. C. (2016) An updated list of marine green algae (Chlorophyta, Ulvophyceae) from the Biosphere Reserve of Sian Ka´an, Quintana Roo, Mexico. Checklist 12 (3): 1 - 15. https: // doi. org / 10.15560 / 12.3.1886" type="journal article" year="2016">
Acosta-Calderón 
<emphasis id="9EC8EA9FFFD8FF87FB8B04E3022A9FE4" box="[1055,1106,736,761]" italics="true" pageId="19" pageNumber="198">et al</emphasis>
. 2016
</bibRefCitation>
), thus, in this paper the distribution of 
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<emphasis id="9EC8EA9FFFD8FF87FEB9050707A39E00" box="[301,475,772,797]" italics="true" pageId="19" pageNumber="198">U. cyathiformis</emphasis>
var. 
<emphasis id="9EC8EA9FFFD8FF87FD85050704EC9E00" box="[529,660,772,797]" italics="true" pageId="19" pageNumber="198">flabellifolia</emphasis>
</taxonomicName>
is extended to the Quintana Roo coast and is recorded for the first time for the Campeche littoral.
</paragraph>
</subSubSection>
</treatment>
</document>