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<document ID-CLB-Dataset="26870" ID-DOI="http://dx.doi.org/10.3897/phytokeys.121.29924" ID-GBIF-Dataset="b83fa02b-b303-4799-856d-b4dbe1160a93" ID-PMC="PMC6522442" ID-Pensoft-Pub="1314-2003-121-81" ID-Pensoft-UUID="B21D393FFFFBFC4EFF96FFA7FFF98263" ID-PubMed="31114428" ID-Zenodo-Dep="3484962" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1314-2003-121-81" ModsDocOrigin="PhytoKeys 121" ModsDocTitle="A checklist of rheophytes of Cameroon" checkinTime="1557465998154" checkinUser="pensoft" docAuthor="Kuetegue, Felix, Sonke, Bonaventure &amp; Ameka, Gabriel K." docDate="2019" docId="7347F951CEB35DD763B8819E93025A65" docLanguage="en" docName="PhytoKeys 121: 81-131" docOrigin="PhytoKeys 121" docSource="http://dx.doi.org/10.3897/phytokeys.121.29924" docTitle="Letestuella tisserantii G. Taylor, Bull. Brit. Mus. (Nat. Hist.) Bot. 1: 57 1953" docType="treatment" docVersion="8" id="B21D393FFFFBFC4EFF96FFA7FFF98263" lastPageNumber="81" masterDocId="B21D393FFFFBFC4EFF96FFA7FFF98263" masterDocTitle="A checklist of rheophytes of Cameroon" masterLastPageNumber="131" masterPageNumber="81" pageNumber="81" updateTime="1732646671235" updateUser="ExternalLinkService">
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<mods:title id="BF1D0D7E225F622B7A5178CC794C2277">A checklist of rheophytes of Cameroon</mods:title>
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<mods:namePart id="0EA1EC609602A8952D8C7DCEF5387179">Kuetegue, Felix</mods:namePart>
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<mods:namePart id="6CFD784BEACA99C2DC52C02003B2444B">Sonke, Bonaventure</mods:namePart>
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<mods:namePart id="176AC1C07B45FD960675113BB227F94E">Ameka, Gabriel K.</mods:namePart>
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<mods:number id="309DD6DB671589D8147E34138582758F">121</mods:number>
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<mods:identifier id="0A419181DAEE20313B44AABF60E8C8D3" type="DOI">http://dx.doi.org/10.3897/phytokeys.121.29924</mods:identifier>
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<treatment id="7347F951CEB35DD763B8819E93025A65" ID-GBIF-Taxon="157119331" LSID="urn:lsid:plazi:treatment:7347F951CEB35DD763B8819E93025A65" httpUri="http://treatment.plazi.org/id/7347F951CEB35DD763B8819E93025A65" lastPageNumber="81" pageId="0" pageNumber="81" scope_family="Sapindaceae">
<subSubSection id="A87BBCA4A3AEF90F5C2E8F77224791FD" pageId="0" pageNumber="81" type="nomenclature">
<paragraph id="01F3215F122DC458EC2C219D685B8B9C" pageId="0" pageNumber="81">
33.
<taxonomicName id="C4AFECD8627F54C96126AB19E1144A1E" ID-CoL="7239P" LSID="F6BE407A-B97B-5D4D-AE82-25C04E358E5A" authority="G. Taylor, Bull. Brit. Mus. (Nat. Hist.) Bot. 1: 57 (1953)" authorityName="G. Taylor, Bull. Brit. Mus. (Nat. Hist.) Bot. 1: 57" authorityYear="1953" class="Magnoliopsida" family="Podostemaceae" genus="Letestuella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Letestuella tisserantii" order="Malpighiales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="species" species="tisserantii">Letestuella tisserantii G.Taylor, Bull. Brit. Mus. (Nat. Hist.) Bot. 1: 57 (1953)</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="C1D97169925A67F4EE178D236821ADCD" pageId="0" pageNumber="81" type="reference_group">
<paragraph id="FE20059C23C9B73184C8D9A03C8A4D58" pageId="0" pageNumber="81">
<taxonomicName id="0B87DE010AC3C09CE804CEA3E28F5D02" class="Magnoliopsida" family="Podostemaceae" genus="Letestuella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Letestuella chevalieri" order="Malpighiales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="species" species="chevalieri">Letestuella chevalieri</taxonomicName>
G.Taylor, Bull. Brit. Mus. (Nat. Hist.), Bot. 1: 59 (1953)
</paragraph>
<paragraph id="B3D38E5FE57B2A5C8F27074D5F6D9412" pageId="0" pageNumber="81">
<taxonomicName id="4D1A5DA7AFF817F285713F3C92C77137" authorityName="Warm" authorityYear="1899" baseAuthorityName="Engl." class="Magnoliopsida" family="Podostemaceae" genus="Leiothylax" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leiothylax warmingii" order="Malpighiales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="species" species="warmingii">Leiothylax warmingii</taxonomicName>
(Engl.) Warm., Danske Vid. Selsk. Skrift. Ser. VI. ix 150 (1899)
</paragraph>
</subSubSection>
<subSubSection id="8E6E68AE17FE7CB5007B0488C1990278" pageId="0" pageNumber="81" type="materials_examined">
<paragraph id="164C91433343792081AE3E70FBE61CD1" pageId="0" pageNumber="81">Type.</paragraph>
<paragraph id="F634DC555735446939A902FF88CCE2C5" pageId="0" pageNumber="81">
Central African Republic,
<emphasis id="02F87AD552AF6D8427E024F077167A1C" italics="true" pageId="0" pageNumber="81">Tisserant 1769</emphasis>
(holotype: BM; isotype: P).
</paragraph>
</subSubSection>
<subSubSection id="3777EB10449A9BDC548599E070CF4EFE" pageId="0" pageNumber="81" type="materials_examined">
<paragraph id="A864DBC828A2248ECFC848AEAAB0C31C" pageId="0" pageNumber="81">Specimens examined.</paragraph>
<paragraph id="C39B383AC8CC4CB57F351C39826F2AB8" pageId="0" pageNumber="81">
Near Goyoum in Sanaga River, 20 km west of Deng Deng,
<emphasis id="55BFB1B7D63DBB298FF64713626C8BE2" italics="true" pageId="0" pageNumber="81">F.J. Breteler 981</emphasis>
(WAG); Plateau de
<normalizedToken id="182706C0FF83AB9E1F6436C000812473" originalValue="lAdamaoua">l'Adamaoua</normalizedToken>
, Vina waterfall, 15 km from Ngaoundere,
<emphasis id="C6630AECBDACF8C0B5FD6989A803843B" italics="true" pageId="0" pageNumber="81">Zehnder 163</emphasis>
(ZT).
</paragraph>
</subSubSection>
<subSubSection id="4788311EAE3E7B9D143ED5A6FA382B7A" pageId="0" pageNumber="81" type="habitat">
<paragraph id="F320240D15905D263D3F985E8A4ACF4D" pageId="0" pageNumber="81">Habitat.</paragraph>
<paragraph id="1CC7A8BFA80C55DF315A35D4E4D0559D" pageId="0" pageNumber="81">River rapids and waterfalls in tropical rain forest.</paragraph>
</subSubSection>
<subSubSection id="1870A294435E6CB43E14341EA2B118AD" pageId="0" pageNumber="81" type="distribution">
<paragraph id="A1F0137E54C137262B9DEC61FE4DB404" pageId="0" pageNumber="81">Distribution.</paragraph>
<paragraph id="C083AD318C95952A8CD75E120134D8E5" pageId="0" pageNumber="81">
Benin, Cameroon (Fig.
<figureCitation id="880C6B8D5FEED8B9E2DF884F44A64EE8" captionStart="Figures 2025" captionStartId="F4" captionText="Figures 20 - 25. 20 Ixora inundata Hiern 21 Virectaria angustifolia (Hiern) Bremek 22 Virectaria salicoides (C. H. Wright) Bremek 23 Deinbollia angustifolia D. W. Thomas 24 Deinbollia saligna Keay 25 Podostemaceae distribution." figureDoi="10.3897/phytokeys.121.29924.figures20-25" httpUri="https://binary.pensoft.net/fig/300482" pageId="0" pageNumber="81">25</figureCitation>
), Central African Republic, Mali, Namibia and Niger.
</paragraph>
</subSubSection>
<subSubSection id="D8865DB4EF72498650059409C9D07DE6" pageId="0" pageNumber="81" type="conservation status">
<paragraph id="E067543989A7BBD32532B86FCE045694" pageId="0" pageNumber="81">Conservation status in Cameroon.</paragraph>
<paragraph id="EDC53B584A38710D8F5534753FB8C02D" pageId="0" pageNumber="81">
<taxonomicName id="8FCBA58DCA4207B3B51778E8F864906D" authorityName="G. Taylor, Bull. Brit. Mus. (Nat. Hist.) Bot. 1: 57" authorityYear="1953" class="Magnoliopsida" family="Podostemaceae" genus="Letestuella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Letestuella tisserantii" order="Malpighiales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="species" species="tisserantii">
<emphasis id="CA1A20540AAF44E8E3AF09C77B82EB63" italics="true" pageId="0" pageNumber="81">Letestuella tisserantii</emphasis>
</taxonomicName>
is listed on http://www.iucnredlist.org as Least Concern (
<bibRefCitation id="371F8280E68EEB1EF35A11FCA4C316EE" author="Diop, FN" journalOrPublisher="Opera Botanica Belgica" pageId="0" pageNumber="81" refId="B25" refString="Diop, FN, 2010d. Letestuellatisserantii. The IUCN Red List of Threatened Species 2010: e.T185497A8422867. [Downloaded on 20 August 2018]" title="Letestuellatisserantii. The IUCN Red List of Threatened Species 2010: e. T 185497 A 8422867. [Downloaded on 20 August 2018]" year="2010 d">Diop 2010d</bibRefCitation>
) since it occurs in many countries. The taxon is known from two localities in Cameroon. The extent of occurrence is less than 100 km2, and the area of occupancy is less than 10 km2. Dams on the Sanaga River and agricultural activities are the main threats to the species. Based on the threats and the number of localities where the species is found,
<taxonomicName id="E330ACF34AF0BC22B4815675EB9BC38C" class="Magnoliopsida" family="Amaranthaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="L. tisserantii" order="Caryophyllales" pageId="0" pageNumber="81" phylum="Angiospermae" rank="species" species="tisserantii">
<emphasis id="6C8715026B2E3B35318EF4F13E02B04A" italics="true" pageId="0" pageNumber="81">L. tisserantii</emphasis>
</taxonomicName>
is here assessed as Endangered. IUNC Red List Category:
<emphasis id="EA1B35289C1C4B494F1A75B70C93586F" bold="true" pageId="0" pageNumber="81">Endangered ENB2ab (iii).</emphasis>
</paragraph>
</subSubSection>
</treatment>
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