301 lines
38 KiB
XML
301 lines
38 KiB
XML
<document ID-DOI="http://dx.doi.org/10.5091/plecevo.106779" ID-Pensoft-Pub="2032-3921-1-88" ID-Pensoft-UUID="5FDDA00880C4572AA510EC5EF7F079C4" ModsDocID="2032-3921-157-1-88" checkinTime="1708507253313" checkinUser="pensoft" docAuthor="Taylor, Jonathan C., Cocquyt, Christine & Walsh, Gina" docDate="2024" docId="B74F4413F88C5F58AE10C433176F4D7D" docLanguage="en" docName="PlantEcolEvol 157(1): 88-99" docOrigin="Plant Ecology and Evolution 157 (1)" docPubDate="2024-02-21" docSource="http://dx.doi.org/10.5091/plecevo.106779" docTitle="Eunotia magnaparva J. C. Taylor & Cocquyt 2024, sp. nov." docType="treatment" docVersion="1" id="5FDDA00880C4572AA510EC5EF7F079C4" lastPageNumber="88" masterDocId="5FDDA00880C4572AA510EC5EF7F079C4" masterDocTitle="Tropical African diatoms from the Eunotia asterionelloides (Bacillariophyta) species complex, with descriptions of new species" masterLastPageNumber="99" masterPageNumber="88" pageNumber="88" updateTime="1708507253313" updateUser="pensoft">
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<mods:title id="2F49124E15CDD0A7A43BECD45BC7CBB1">Tropical African diatoms from the Eunotia asterionelloides (Bacillariophyta) species complex, with descriptions of new species</mods:title>
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<mods:name id="A5FAB41BA31BC12C50B7EA939CA2BA4F" type="personal">
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<mods:namePart id="4009EA6BA5D31861B4F10DAF8265992E">Taylor, Jonathan C.</mods:namePart>
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<mods:affiliation id="0997D6006A86652BF483808B761A1C13">Unit for Environmental Science and Management, North-West University, Potchefstroom, South Africa & South African Institute for Aquatic Biodiversity (SAIAB), South Africa</mods:affiliation>
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<mods:nameIdentifier id="EC8610ED8C7F3608B6852327736FCFCF" type="email">jonathan.taylor@nwu.ac.za</mods:nameIdentifier>
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<mods:namePart id="D362FB90445D477E5B79F501039A6ECA">Cocquyt, Christine</mods:namePart>
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<mods:nameIdentifier id="2ED90A1ED7B9D8F0251239F6AE9455D1" type="ORCID">https://orcid.org/0000-0003-2717-3246</mods:nameIdentifier>
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<mods:affiliation id="17DC0568873BE17C44C564150EF7896B">Meise Botanic Garden, Research Department, Belgium</mods:affiliation>
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<mods:namePart id="0F1D7A88FC5EE2202F9C24A4F6532155">Walsh, Gina</mods:namePart>
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<mods:nameIdentifier id="B1204453ADB5AD201D6F3F6DFD9CDDA3" type="ORCID">https://orcid.org/0000-0002-6859-4568</mods:nameIdentifier>
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<mods:affiliation id="26AACB1EFFB4AA9BCD72037D2D201BA0">University of the Witwatersrand, School of Animal Plant and Environmental Sciences, Johannesburg, South Africa & Flora, Fauna & Man Ecological Services Ltd., British Virgin Islands</mods:affiliation>
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<mods:typeOfResource id="2A1FB28D8CF8475C47B67E2574406950">text</mods:typeOfResource>
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<mods:title id="2F6BC65599EC48BA74C422BCDFCB4496">Plant Ecology and Evolution</mods:title>
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<mods:part id="08A768DDBE5D6A803C0C97EE965C199B">
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<mods:date id="C425082A4D8B40956D7409D9DF54A6E7">2024</mods:date>
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<mods:number id="5694C67BB5C99492B2B019F032906B6E">2024-02-21</mods:number>
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<mods:number id="8B50D7F793445C480A193AB77FBD681A">157</mods:number>
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<mods:start id="3CB8B6EF991F44881DE9511113D73393">88</mods:start>
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<mods:identifier id="F6CEC9CE3ED49903FFBA1CC347B727C4" type="DOI">http://dx.doi.org/10.5091/plecevo.106779</mods:identifier>
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<treatment id="B74F4413F88C5F58AE10C433176F4D7D" LSID="urn:lsid:plazi:treatment:B74F4413F88C5F58AE10C433176F4D7D" httpUri="http://treatment.plazi.org/id/B74F4413F88C5F58AE10C433176F4D7D" lastPageNumber="88" pageId="0" pageNumber="88">
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<subSubSection id="88EA8E8591A67F454EDA1235ADB56F23" pageId="0" pageNumber="88" type="nomenclature">
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<paragraph id="B5155F4773E0C0D3C9B1968965A4EF41" pageId="0" pageNumber="88">
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<taxonomicName id="440D5F3AB6B288C35554F20BBF86D685" LSID="B74F4413-F88C-5F58-AE10-C433176F4D7D" authority="J. C. Taylor & Cocquyt" authorityName="J. C. Taylor & Cocquyt" authorityYear="2024" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Eunotia magnaparva" order="Eunotiales" pageId="0" pageNumber="88" phylum="Bacillariophyta" rank="species" species="magnaparva" status="sp. nov.">Eunotia magnaparva J.C.Taylor & Cocquyt</taxonomicName>
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<taxonomicNameLabel id="8031DEC705E2CC6F98ECE2E5138F5996" pageId="0" pageNumber="88">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="9A614871282177076156E24E695A38D6" pageId="0" pageNumber="88" type="description">
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<paragraph id="F94A5FEEC444EDE35C87951A4887BF81" pageId="0" pageNumber="88">
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||
<figureCitation id="5B2E61A190A6E402376C0BC473F6D2E1" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Eunotia magnaparva sp. nov., LM from type material, sample CCA 4521. Type represented by Fig. 1 Y. A - AO. Size diminution series, valve view. AP - AS. Girdle view. Scale bar = 10 µm." figureDoi="10.5091/plecevo.106779.figure1" httpUri="https://binary.pensoft.net/fig/979694" pageId="0" pageNumber="88">Figs 1</figureCitation>
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<figureCitation id="846B8A5B3FA4E049C25B05E665C039BE" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A. External valve view of larger cell, note the cordiform apices with discontinuous striae. B - C. External valve view of cells medium size, note the reduced raphe in C and the slightly more pronounced raphe in D. Similarly, valve B has marginal spines while in valve C spines are almost absent. D. Cell representing the smallest extremity of the cell cycle, note pronounced raphe endings extending onto the valve face and interrupted striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure2" httpUri="https://binary.pensoft.net/fig/979695" pageId="0" pageNumber="88">, 2</figureCitation>
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<figureCitation id="96875990E355203FA017F5D0EEC14C10" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A-C. External view of valve apices showing pattern of striation, the highly reduced raphe structure and the discontinuous striae both at the apices in A and through the cell in B. B. External valve view, note the reduced raphe (arrowhead). C. Note the external opening of the rimoportula (arrowhead). D. External valve view showing areolae occluded by hymenes, note the discontinuous striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure3" httpUri="https://binary.pensoft.net/fig/979696" pageId="0" pageNumber="88">, 3</figureCitation>
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<figureCitation id="83ACC55F28DEDB489C41A10F685741EB" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A - F. Internal view of valve showing the internally unoccluded areolae, striae discontinuous over the valve face. D. Structure of the raphe (arrowhead), terminating in a somewhat reduced helictoglossa. F. Highly reduced raphe (white arrowhead), rimoportula present near the ventral side (black arrowhead). Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure4" httpUri="https://binary.pensoft.net/fig/979697" pageId="0" pageNumber="88">, 4</figureCitation>
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</paragraph>
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||
</subSubSection>
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<subSubSection id="2A1E099F70BC06A12481A6D3C874EDBD" pageId="0" pageNumber="88" type="materials_examined">
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<paragraph id="14558F5E377DDE37ADE7717DB7736F6C" pageId="0" pageNumber="88">
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<typeStatus id="8361BDC46EF022AB844ED29E51E21A14">Type</typeStatus>
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.
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</paragraph>
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<paragraph id="997C1F0119C8E350DF26BD02DD86E532" pageId="0" pageNumber="88">
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||
<materialsCitation id="9A52E7C5D741730CFA2E7E9463F1BC5B" collectingDate="2024-01-01" collectingDateMax="2024-12-31" collectingDateMin="2024-01-01" country="CONGO" county="Province" latitude="0.0016666667" location="Eala" longLatPrecision="1" longitude="18.349167" municipality="Bonkele River" specimenCount="1" stateProvince="Equateur" typeStatus="holotype">
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D.R.
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<collectingCountry id="EA6FC85ADB630EDC460A1367E4EC3C70" name="Democratic Republic of the Congo">CONGO</collectingCountry>
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•
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<collectingCounty id="38A6C4441CC2B5F9E9A9995077343503">Province</collectingCounty>
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of
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<normalizedToken id="E86DCE11160E7E6F0A7C7850969CCD40" originalValue="Équateur">
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<collectingRegion id="095D49F795DB2349057872FF4F79D814" country="Democratic Republic of the Congo" name="Equateur">Equateur</collectingRegion>
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</normalizedToken>
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,
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<collectingMunicipality id="6812D61F408CC7F0F5384C2140DDA0AE">Bonkele River</collectingMunicipality>
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,
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<locationDeviation id="8DECB54DDCC8A3C21D7718A826F3CB5B" firstLocation="Bamania" secondLocation="Ilenge">between Bamania and Ilenge</locationDeviation>
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near
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<location id="D09C49886EB1EC8C0653575B469AADC2" LSID="urn:lsid:plazi:treatment:B74F4413F88C5F58AE10C433176F4D7D:D09C49886EB1EC8C0653575B469AADC2" country="CONGO" county="Province" latitude="0.0016666667" longLatPrecision="1" longitude="18.349167" municipality="Bonkele River" name="Eala" stateProvince="Equateur">Eala</location>
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;
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<geoCoordinate id="BBAC352D2B847E87828AFC3EBF57DF74" degrees="0" direction="north" minutes="00" orientation="latitude" precision="1" seconds="06.0" value="0.0016666667">
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0°00
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<normalizedToken id="2F9E5FB31BB07A41E4B9200F28020DA5" originalValue="’06.0”">'06.0"</normalizedToken>
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N
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</geoCoordinate>
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,
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<geoCoordinate id="E1C6D9A5440498F21DADF567C42DD2DD" degrees="18" direction="east" minutes="20" orientation="longitude" precision="1" seconds="57.0" value="18.349167">
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18°20
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<normalizedToken id="BAEB44FD5EF975F2667AC4685F7A4CBE" originalValue="’57.0”">'57.0"</normalizedToken>
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E
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||
</geoCoordinate>
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||
; sample CCA 4521;
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<typeStatus id="009B8F324B332EFD393C92D26F0194CA" type="holotype">holotype</typeStatus>
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: BR, slide BR 4755, the valve representing the type is illustrated in Fig.
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<figureCitation id="5A70B1846BC998C3BC511E8E4A91D5B1" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Eunotia magnaparva sp. nov., LM from type material, sample CCA 4521. Type represented by Fig. 1 Y. A - AO. Size diminution series, valve view. AP - AS. Girdle view. Scale bar = 10 µm." figureDoi="10.5091/plecevo.106779.figure1" httpUri="https://binary.pensoft.net/fig/979694" pageId="0" pageNumber="88">1Y</figureCitation>
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;
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<typeStatus id="52FF42871805F3C62FA511FA6225095F" type="isotype">isotype</typeStatus>
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: SANDC, slide SANDC-23-154
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</materialsCitation>
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||
.
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</paragraph>
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<caption id="5E308E402ED1E6BEC9C9E29EC2EB6246" doi="10.5091/plecevo.106779.figure1" httpUri="https://binary.pensoft.net/fig/979694" pageId="0" pageNumber="88" start="Figure 1" startId="F1">
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<paragraph id="16EC7A5DD4CDAABF38EE10C408D85F76" pageId="0" pageNumber="88">
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<emphasis id="E0CC472EDD4313BF4BD25DB448C479C1" bold="true" pageId="0" pageNumber="88">Figure 1.</emphasis>
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<taxonomicName id="CF7F5B9AC1F7695806988C3F84AE2AFF" authorityName="J. C. Taylor & Cocquyt" authorityYear="2024" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" kingdom="Animalia" lsidName="Eunotia magnaparva" order="Diptera" pageId="0" pageNumber="88" phylum="Bacillariophyta" rank="species" species="magnaparva">
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<emphasis id="65FDC1719540A59E063BB8C4F69B1D3B" italics="true" pageId="0" pageNumber="88">Eunotia magnaparva</emphasis>
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</taxonomicName>
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sp. nov., LM from
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<typeStatus id="0E7CD02077D4B79D7214BD3071EB1B71">type</typeStatus>
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material, sample CCA 4521.
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<typeStatus id="22EE834B96B8A127DAE051FF7FA57D6A">Type</typeStatus>
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represented by Fig.
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<figureCitation id="AB87758676808CAE1E449D9A57241F0F" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Eunotia magnaparva sp. nov., LM from type material, sample CCA 4521. Type represented by Fig. 1 Y. A - AO. Size diminution series, valve view. AP - AS. Girdle view. Scale bar = 10 µm." figureDoi="10.5091/plecevo.106779.figure1" httpUri="https://binary.pensoft.net/fig/979694" pageId="0" pageNumber="88">1Y</figureCitation>
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||
.
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||
<emphasis id="198AF67F5360C33021C4061E711B0538" bold="true" pageId="0" pageNumber="88">A</emphasis>
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-
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<emphasis id="8B117C49F950D6FC275DB6EE94C1F37F" bold="true" pageId="0" pageNumber="88">AO</emphasis>
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. Size diminution series, valve view.
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<emphasis id="674CAE29631488BECFB39A523C354073" bold="true" pageId="0" pageNumber="88">AP</emphasis>
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||
-
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<emphasis id="FC2A836886944B54E7AD0BB576E80751" bold="true" pageId="0" pageNumber="88">
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<collectingCountry id="1062480BECC896F59288ECE04B04FA1D" name="American Samoa">AS</collectingCountry>
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</emphasis>
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. Girdle view. Scale bar = 10
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<normalizedToken id="189A7C3EA6642C08A547F22EF7386814" originalValue="µm">µm</normalizedToken>
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.
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</paragraph>
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||
</caption>
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||
</subSubSection>
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||
<subSubSection id="7266CE6875740A04AFD5E9A6BBCF69D9" pageId="0" pageNumber="88" type="description">
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<paragraph id="4F130902DB11CC32C7B5FD3BB7611179" pageId="0" pageNumber="88">LM description.</paragraph>
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<paragraph id="05AE8F43013413983D3C6A9850C14496" pageId="0" pageNumber="88">
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Valves linear, arcuate, with considerable morphological variance over cell cycle. Ventral margins convex, dorsal margins concave. Apices distinctly capitate in large cells, subcapitate in smaller cells, bluntly rounded in the smallest cells. Apices rounded to weakly cordiform, slightly asymmetrical, expanded ventrally, indented forming a cleft in larger cells. Terminal nodule barely visible. In girdle view cells weakly heteropolar, often exhibiting some degree of flexing around the apical axis. Larger cells constricted mid-valve. Valve length 8.5-40.0
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<normalizedToken id="CDC8585928F096EA815BCA968B66F625" originalValue="µm">µm</normalizedToken>
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, width 2.0-4.0
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<normalizedToken id="242BF59D358E4AEC094CB64CE04D6BD3" originalValue="µm">µm</normalizedToken>
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in the middle, and 2.5-8.0
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<normalizedToken id="A37D8390D3257A6D61CE9B91515E77D2" originalValue="µm">µm</normalizedToken>
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at the poles. Striae visible under LM, 16-24 in 10
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<normalizedToken id="5D7F64ACC665751A95A95F10288E1CC6" originalValue="µm">µm</normalizedToken>
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||
. Striae interrupted at various points around the mid region on the apical axis of the valve, especially near to the apices in larger cells but throughout the valve in smaller cells.
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</paragraph>
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</subSubSection>
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<subSubSection id="C9CE4CD0AAFB9B6B7085E96B6BAE01CE" pageId="0" pageNumber="88" type="description">
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<paragraph id="C3FF606CC3A9CFFD748AB7993F221896" pageId="0" pageNumber="88">SEM description.</paragraph>
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<paragraph id="0961607B157DEFC45592937872C42384" pageId="0" pageNumber="88">
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Striae uniseriate externally and internally, composed of round areolae, occluded externally by hymenes (Fig.
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<figureCitation id="3A16BA87FAB947C5367F8E4A97899E24" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A-C. External view of valve apices showing pattern of striation, the highly reduced raphe structure and the discontinuous striae both at the apices in A and through the cell in B. B. External valve view, note the reduced raphe (arrowhead). C. Note the external opening of the rimoportula (arrowhead). D. External valve view showing areolae occluded by hymenes, note the discontinuous striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure3" httpUri="https://binary.pensoft.net/fig/979696" pageId="0" pageNumber="88">3D</figureCitation>
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). Striae continuing onto valve mantle near the apices becoming discontinuous and offset near the centre of the valve (Fig.
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<figureCitation id="769A1F0F416066E4863832E6FA260D35" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A. External valve view of larger cell, note the cordiform apices with discontinuous striae. B - C. External valve view of cells medium size, note the reduced raphe in C and the slightly more pronounced raphe in D. Similarly, valve B has marginal spines while in valve C spines are almost absent. D. Cell representing the smallest extremity of the cell cycle, note pronounced raphe endings extending onto the valve face and interrupted striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure2" httpUri="https://binary.pensoft.net/fig/979695" pageId="0" pageNumber="88">2C</figureCitation>
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). Externally striae interrupted at the margin by a slightly thickened silica ridge. Small, conical marginal spines present in some cells (Fig.
|
||
<figureCitation id="70820A26487C7489A6CA4FA5403B559F" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A. External valve view of larger cell, note the cordiform apices with discontinuous striae. B - C. External valve view of cells medium size, note the reduced raphe in C and the slightly more pronounced raphe in D. Similarly, valve B has marginal spines while in valve C spines are almost absent. D. Cell representing the smallest extremity of the cell cycle, note pronounced raphe endings extending onto the valve face and interrupted striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure2" httpUri="https://binary.pensoft.net/fig/979695" pageId="0" pageNumber="88">2A, B</figureCitation>
|
||
), especially prominent at the valve apex (Fig.
|
||
<figureCitation id="B75A40B7B3D510974016AE19BB59EB86" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A. External valve view of larger cell, note the cordiform apices with discontinuous striae. B - C. External valve view of cells medium size, note the reduced raphe in C and the slightly more pronounced raphe in D. Similarly, valve B has marginal spines while in valve C spines are almost absent. D. Cell representing the smallest extremity of the cell cycle, note pronounced raphe endings extending onto the valve face and interrupted striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure2" httpUri="https://binary.pensoft.net/fig/979695" pageId="0" pageNumber="88">2A</figureCitation>
|
||
), sometimes reduced and barely visible or absent on smaller cells (Fig.
|
||
<figureCitation id="0687896FF17643B8201A2621DF387848" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A. External valve view of larger cell, note the cordiform apices with discontinuous striae. B - C. External valve view of cells medium size, note the reduced raphe in C and the slightly more pronounced raphe in D. Similarly, valve B has marginal spines while in valve C spines are almost absent. D. Cell representing the smallest extremity of the cell cycle, note pronounced raphe endings extending onto the valve face and interrupted striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure2" httpUri="https://binary.pensoft.net/fig/979695" pageId="0" pageNumber="88">2D</figureCitation>
|
||
). Striae evenly spaced, parallel at the centre of the valve becoming radial at the apices (Fig.
|
||
<figureCitation id="4564FF9C32671062FB21C54ED2D0F354" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A-C. External view of valve apices showing pattern of striation, the highly reduced raphe structure and the discontinuous striae both at the apices in A and through the cell in B. B. External valve view, note the reduced raphe (arrowhead). C. Note the external opening of the rimoportula (arrowhead). D. External valve view showing areolae occluded by hymenes, note the discontinuous striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure3" httpUri="https://binary.pensoft.net/fig/979696" pageId="0" pageNumber="88">3C</figureCitation>
|
||
). Raphe slits visible externally and internally, sometimes extending onto the valve face and terminating very close to the valve apices (Fig.
|
||
<figureCitation id="1F131D83667A2634967A36C7A62FEF1A" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A-C. External view of valve apices showing pattern of striation, the highly reduced raphe structure and the discontinuous striae both at the apices in A and through the cell in B. B. External valve view, note the reduced raphe (arrowhead). C. Note the external opening of the rimoportula (arrowhead). D. External valve view showing areolae occluded by hymenes, note the discontinuous striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure3" httpUri="https://binary.pensoft.net/fig/979696" pageId="0" pageNumber="88">3D</figureCitation>
|
||
). Raphe slit often, though not always, greatly reduced externally in larger cells (Fig.
|
||
<figureCitation id="93A90304410F1270E87D3309512B0882" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A-C. External view of valve apices showing pattern of striation, the highly reduced raphe structure and the discontinuous striae both at the apices in A and through the cell in B. B. External valve view, note the reduced raphe (arrowhead). C. Note the external opening of the rimoportula (arrowhead). D. External valve view showing areolae occluded by hymenes, note the discontinuous striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure3" httpUri="https://binary.pensoft.net/fig/979696" pageId="0" pageNumber="88">3B</figureCitation>
|
||
). Valve mantle shallow, at 90° to the valve face. Internally, terminal raphe branches terminating onto small, rather elongated but well-defined helictoglossae in smaller cells (Fig.
|
||
<figureCitation id="A8AF8C8B4B2F09CC80EF823C4156FCBE" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A - F. Internal view of valve showing the internally unoccluded areolae, striae discontinuous over the valve face. D. Structure of the raphe (arrowhead), terminating in a somewhat reduced helictoglossa. F. Highly reduced raphe (white arrowhead), rimoportula present near the ventral side (black arrowhead). Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure4" httpUri="https://binary.pensoft.net/fig/979697" pageId="0" pageNumber="88">4D, E</figureCitation>
|
||
), absent in larger cells (Fig.
|
||
<figureCitation id="6B25859D8D6810D11D2006F9E7DEE650" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A - F. Internal view of valve showing the internally unoccluded areolae, striae discontinuous over the valve face. D. Structure of the raphe (arrowhead), terminating in a somewhat reduced helictoglossa. F. Highly reduced raphe (white arrowhead), rimoportula present near the ventral side (black arrowhead). Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure4" httpUri="https://binary.pensoft.net/fig/979697" pageId="0" pageNumber="88">4F</figureCitation>
|
||
). Girdle bands open with one row of occluded areolae (Fig.
|
||
<figureCitation id="C97AA1876A3CD981A3515ABB6A248796" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A - F. Internal view of valve showing the internally unoccluded areolae, striae discontinuous over the valve face. D. Structure of the raphe (arrowhead), terminating in a somewhat reduced helictoglossa. F. Highly reduced raphe (white arrowhead), rimoportula present near the ventral side (black arrowhead). Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure4" httpUri="https://binary.pensoft.net/fig/979697" pageId="0" pageNumber="88">4B, C</figureCitation>
|
||
). One rimoportula present on each valve, always located close to the terminal raphe ending at the ventral part of one of the apices (Fig.
|
||
<figureCitation id="6832EC02D814260AE12EC0515245564E" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A - F. Internal view of valve showing the internally unoccluded areolae, striae discontinuous over the valve face. D. Structure of the raphe (arrowhead), terminating in a somewhat reduced helictoglossa. F. Highly reduced raphe (white arrowhead), rimoportula present near the ventral side (black arrowhead). Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure4" httpUri="https://binary.pensoft.net/fig/979697" pageId="0" pageNumber="88">4F</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="C16B40702D336A00DD28EC8F5C1142DF" doi="10.5091/plecevo.106779.figure2" httpUri="https://binary.pensoft.net/fig/979695" pageId="0" pageNumber="88" start="Figure 2" startId="F2">
|
||
<paragraph id="781F12C84814E1A55179940CDEEE30CD" pageId="0" pageNumber="88">
|
||
<emphasis id="8ADA401C456CB4C804A2D263C070A58E" bold="true" pageId="0" pageNumber="88">Figure 2.</emphasis>
|
||
<taxonomicName id="C5781DBB824A6E845C1C9D3F962ED73F" authorityName="J. C. Taylor & Cocquyt" authorityYear="2024" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" kingdom="Animalia" lsidName="Eunotia magnaparva" order="Diptera" pageId="0" pageNumber="88" phylum="Bacillariophyta" rank="species" species="magnaparva">
|
||
<emphasis id="C10848B17D0B162F1DCE4FC2A61AB24E" italics="true" pageId="0" pageNumber="88">Eunotia magnaparva</emphasis>
|
||
</taxonomicName>
|
||
sp. nov., SEM from type material, sample CCA 4521.
|
||
<emphasis id="805BD8783F9229D89451F7A3C1DDA52F" bold="true" pageId="0" pageNumber="88">A</emphasis>
|
||
. External valve view of larger cell, note the cordiform apices with discontinuous striae.
|
||
<emphasis id="3A9F42EF5666FAA52E7B9BA8310AD75E" bold="true" pageId="0" pageNumber="88">B</emphasis>
|
||
-
|
||
<emphasis id="324BAD65BB475CEFEEF6E7BFA81510BE" bold="true" pageId="0" pageNumber="88">C</emphasis>
|
||
. External valve view of cells medium size, note the reduced raphe in C and the slightly more pronounced raphe in D. Similarly, valve B has marginal spines while in valve C spines are almost absent.
|
||
<emphasis id="84F670C8031D2FD93E1E5396233CBF39" bold="true" pageId="0" pageNumber="88">D</emphasis>
|
||
. Cell representing the smallest extremity of the cell cycle, note pronounced raphe endings extending onto the valve face and interrupted striae. Scale bars = 2
|
||
<normalizedToken id="5FC87C6410EEBCC5621F02526798B00B" originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="3BEEFA28B4F577981BC3F2288CDDA8ED" doi="10.5091/plecevo.106779.figure3" httpUri="https://binary.pensoft.net/fig/979696" pageId="0" pageNumber="88" start="Figure 3" startId="F3">
|
||
<paragraph id="536F0430A6051B3ECF0B485645EC71A1" pageId="0" pageNumber="88">
|
||
<emphasis id="4AE7A83AA15A542D642CF2C97C38EA5B" bold="true" pageId="0" pageNumber="88">Figure 3.</emphasis>
|
||
<taxonomicName id="888A622EE1C1A3FFEFC8C705F42B080D" authorityName="J. C. Taylor & Cocquyt" authorityYear="2024" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" kingdom="Animalia" lsidName="Eunotia magnaparva" order="Diptera" pageId="0" pageNumber="88" phylum="Bacillariophyta" rank="species" species="magnaparva">
|
||
<emphasis id="6CF3573BD35746182F79F25F509B8CB0" italics="true" pageId="0" pageNumber="88">Eunotia magnaparva</emphasis>
|
||
</taxonomicName>
|
||
sp. nov., SEM from type material, sample CCA 4521.
|
||
<emphasis id="AED2178DEB747BEFEE597B30B354051E" bold="true" pageId="0" pageNumber="88">A-C.</emphasis>
|
||
External view of valve apices showing pattern of striation, the highly reduced raphe structure and the discontinuous striae both at the apices in A and through the cell in B.
|
||
<emphasis id="C5E7074C4C611E2DA3D4054B7F6C5F58" bold="true" pageId="0" pageNumber="88">B</emphasis>
|
||
. External valve view, note the reduced raphe (arrowhead).
|
||
<emphasis id="66EC39A77F7143ECF47CCCC71AA91C9E" bold="true" pageId="0" pageNumber="88">C</emphasis>
|
||
. Note the external opening of the rimoportula (arrowhead).
|
||
<emphasis id="ED849A655AA42AC714A635FC51FB8469" bold="true" pageId="0" pageNumber="88">D.</emphasis>
|
||
External valve view showing areolae occluded by hymenes, note the discontinuous striae. Scale bars = 2
|
||
<normalizedToken id="12D602F82B86FB538C6B66005F0FE864" originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="21A724F7AE04BA708917D5DFB3CBB291" doi="10.5091/plecevo.106779.figure4" httpUri="https://binary.pensoft.net/fig/979697" pageId="0" pageNumber="88" start="Figure 4" startId="F4">
|
||
<paragraph id="8BDD9FEB068E41973084AFE25BBDF9AB" pageId="0" pageNumber="88">
|
||
<emphasis id="765ED340CBD3A43864F356336B11926B" bold="true" pageId="0" pageNumber="88">Figure 4.</emphasis>
|
||
<taxonomicName id="13E7C52843DA59395751BEF2B925A540" authorityName="J. C. Taylor & Cocquyt" authorityYear="2024" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" kingdom="Animalia" lsidName="Eunotia magnaparva" order="Diptera" pageId="0" pageNumber="88" phylum="Bacillariophyta" rank="species" species="magnaparva">
|
||
<emphasis id="9008E554FFEAC437AF3B3DFDAA2F49AC" italics="true" pageId="0" pageNumber="88">Eunotia magnaparva</emphasis>
|
||
</taxonomicName>
|
||
sp. nov., SEM from type material, sample CCA 4521.
|
||
<emphasis id="F58CC631986E109182A9278288FCBE69" bold="true" pageId="0" pageNumber="88">A</emphasis>
|
||
-
|
||
<emphasis id="3AF66B7A00B075C7EE73EEE7D2001F05" bold="true" pageId="0" pageNumber="88">F</emphasis>
|
||
. Internal view of valve showing the internally unoccluded areolae, striae discontinuous over the valve face.
|
||
<emphasis id="F310EDA5C3EAA44C8739C54C282C4368" bold="true" pageId="0" pageNumber="88">D</emphasis>
|
||
. Structure of the raphe (arrowhead), terminating in a somewhat reduced helictoglossa.
|
||
<emphasis id="D6194B7442AB7255CC6F2088FC0C25FC" bold="true" pageId="0" pageNumber="88">F</emphasis>
|
||
. Highly reduced raphe (white arrowhead), rimoportula present near the ventral side (black arrowhead). Scale bars = 2
|
||
<normalizedToken id="0A0ADDD6F36C3EA88D1E9153495B9511" originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection id="AC491189BE064E6E2110ABBCE57D3C08" pageId="0" pageNumber="88" type="distribution">
|
||
<paragraph id="AFFBDC4EDB834ED4FBD246C2350491DB" pageId="0" pageNumber="88">Distribution.</paragraph>
|
||
<paragraph id="EA044EA9A74C90FD4A7D3F14C85DFDA5" pageId="0" pageNumber="88">
|
||
The herbarium sheets sampled for diatom investigation (CCA 4510, 4511, 4521) on which
|
||
<taxonomicName id="FA0C7800B5D43DB4C0C619ADB2511B8E" authorityName="J. C. Taylor & Cocquyt" authorityYear="2024" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" kingdom="Animalia" lsidName="Eunotia magnaparva" order="Diptera" pageId="0" pageNumber="88" phylum="Bacillariophyta" rank="species" species="magnaparva">
|
||
<emphasis id="F82F939B730C57834573EECCE2935E9F" italics="true" pageId="0" pageNumber="88">Eunotia magnaparva</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. was observed all came from the region around Eala, in the Province of
|
||
<normalizedToken id="CC88CAAA8104E0B06671636402106AF3" originalValue="Équateur">Equateur</normalizedToken>
|
||
, D.R. Congo. So far, this taxon was not observed in other materials from D.R. Congo.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="80338D0ED132AD1A70194DD9FA0F0443" pageId="0" pageNumber="88" type="ecology">
|
||
<paragraph id="58ABEED3EF046432CDEA7D4D467F69D4" pageId="0" pageNumber="88">Ecology.</paragraph>
|
||
<paragraph id="355E7AEDDBA4D60189BB29F7737120AD" pageId="0" pageNumber="88">
|
||
This species was found on
|
||
<taxonomicName id="C936DBE09B9B83ED178821F805E0999C" class="Magnoliopsida" family="Lentibulariaceae" genus="Utricularia" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Utricularia" order="Lamiales" pageId="0" pageNumber="88" phylum="Tracheophyta" rank="genus">
|
||
<emphasis id="AF5C4D5E19E7F4D3B654CD5657E009F2" italics="true" pageId="0" pageNumber="88">Utricularia</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="51FE207C4D47984152BE0A4E4687D562" class="Magnoliopsida" family="Nymphaeaceae" genus="Nymphaea" kingdom="Plantae" lsidName="Nymphaea lotus" order="Nymphaeales" pageId="0" pageNumber="88" phylum="Tracheophyta" rank="species" species="lotus">
|
||
<emphasis id="646BAFAADC91231FB567475CADC5AE4A" italics="true" pageId="0" pageNumber="88">Nymphaea lotus</emphasis>
|
||
</taxonomicName>
|
||
. No further data was collected at the time of sampling.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="132FA367D7BDC56D0438EC90E158EA2E" pageId="0" pageNumber="88" type="etymology">
|
||
<paragraph id="58A9EB18F67B24F39E25CD5379B6CA91" pageId="0" pageNumber="88">Etymology.</paragraph>
|
||
<paragraph id="10C6955A5B5C7463EADD0CE91B2A6E75" pageId="0" pageNumber="88">
|
||
The epithet
|
||
<taxonomicName id="8E94C764795CB4711F56581BB22B90F6" authorityName="J. C. Taylor & Cocquyt" authorityYear="2024" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" kingdom="Animalia" lsidName="Eunotia magnaparva" order="Diptera" pageId="0" pageNumber="88" phylum="Bacillariophyta" rank="species" species="magnaparva">
|
||
<emphasis id="79E24E68533CE24B32D456F64DDFCBE4" italics="true" pageId="0" pageNumber="88">Eunotia magnaparva</emphasis>
|
||
</taxonomicName>
|
||
refers to the variability of this species in terms of size over the cell cycle, magna being large and parva small, reflecting that the cells range from particularly small to comparatively large.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="2A881A3D7F288EEC01827F270C8B1E3F" pageId="0" pageNumber="88" type="registration">
|
||
<paragraph id="BB98A5D71DD2FC6F2E073C77204DE8D3" pageId="0" pageNumber="88">Registration.</paragraph>
|
||
<paragraph id="1417B801BC32CC4261C9077348A3EDD9" pageId="0" pageNumber="88">http://phycobank.org/104056</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="A444ED8316FE92A8822D5F15AFD9FA82" pageId="0" pageNumber="88" type="notes">
|
||
<paragraph id="634A9EB6598E4776CDEDB42B548F6B07" pageId="0" pageNumber="88">Notes.</paragraph>
|
||
<paragraph id="350172ABF3AC0546DC80537B87FD5C05" pageId="0" pageNumber="88">
|
||
The diminution series as presented in Fig.
|
||
<figureCitation id="7ED1C4B957706C3F5D192869FCA02354" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Eunotia magnaparva sp. nov., LM from type material, sample CCA 4521. Type represented by Fig. 1 Y. A - AO. Size diminution series, valve view. AP - AS. Girdle view. Scale bar = 10 µm." figureDoi="10.5091/plecevo.106779.figure1" httpUri="https://binary.pensoft.net/fig/979694" pageId="0" pageNumber="88">1</figureCitation>
|
||
shows a notable degree of difference in the cell morphology over the cell cycle. These differences are apparent in the shape of the apices, the cell length to breadth ratio, as well as in the structure of the raphe. The width of the cells dramatically decreases with an increase in cell length. In larger cells the raphe may be highly reduced and only present at the junction of the valve face and mantle (Fig.
|
||
<figureCitation id="02B60D947C732989E9554FDC94A84912" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A-C. External view of valve apices showing pattern of striation, the highly reduced raphe structure and the discontinuous striae both at the apices in A and through the cell in B. B. External valve view, note the reduced raphe (arrowhead). C. Note the external opening of the rimoportula (arrowhead). D. External valve view showing areolae occluded by hymenes, note the discontinuous striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure3" httpUri="https://binary.pensoft.net/fig/979696" pageId="0" pageNumber="88">3A, B</figureCitation>
|
||
), while in smaller cells the raphe is longer and extends onto the valve face (Fig.
|
||
<figureCitation id="438AD812ABCD6DCAEFE1FE3DE9DFD6D6" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Eunotia magnaparva sp. nov., SEM from type material, sample CCA 4521. A. External valve view of larger cell, note the cordiform apices with discontinuous striae. B - C. External valve view of cells medium size, note the reduced raphe in C and the slightly more pronounced raphe in D. Similarly, valve B has marginal spines while in valve C spines are almost absent. D. Cell representing the smallest extremity of the cell cycle, note pronounced raphe endings extending onto the valve face and interrupted striae. Scale bars = 2 µm." figureDoi="10.5091/plecevo.106779.figure2" httpUri="https://binary.pensoft.net/fig/979695" pageId="0" pageNumber="88">2D</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |