298 lines
38 KiB
XML
298 lines
38 KiB
XML
<document id="3DB5C79FEF073C64FCBCA0373DCA6C88" ID-DOI="10.11646/phytotaxa.632.2.8" ID-ISSN="1179-3163" ID-Zenodo-Dep="10438544" 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.treatments_approvedBy="felipe" checkinTime="1703755977567" checkinUser="plazi" docAuthor="Crouch, Neil R. & Smith, Gideon F." docDate="2023" docId="03E987D6FFABFFC811C16F48FA41F8EC" docLanguage="en" docName="phytotaxa.632.2.8.pdf" docOrigin="Phytotaxa 632 (2)" docSource="https://phytotaxa.mapress.com/pt/article/download/phytotaxa.632.2.8/51402" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Cotyledon mckayi N. R. Crouch & Gideon F. Sm. 2023, sp. nov." docType="treatment" docVersion="2" lastPageNumber="187" masterDocId="FFD0FFAEFFA9FFCB1149681CFFDBFFC1" masterDocTitle="Cotyledon mckayi (Crassulaceae subfam. Kalanchooideae), a new cremnophytic species from the central Tugela River Basin of KwaZulu-Natal, South Africa" masterLastPageNumber="192" masterPageNumber="184" pageNumber="186" updateTime="1703757250929" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="247312CECF3D22CCBB7D2D937D0739E2">Cotyledon mckayi (Crassulaceae subfam. Kalanchooideae), a new cremnophytic species from the central Tugela River Basin of KwaZulu-Natal, South Africa</mods:title>
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<mods:name id="DD2470E1072DC6A0C879F9338F789069" type="personal">
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<mods:roleTerm id="366C820FD95D3DD5CCC30B84DCBB2EFE">Author</mods:roleTerm>
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<mods:namePart id="8E2FB4C7281642AD99C7FCA00C1C1E92">Crouch, Neil R.</mods:namePart>
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<mods:affiliation id="E47677C9270ABBE496B25672D843CE79">Biodiversity Research and Monitoring Directorate, South African National Biodiversity Institute, P. O. Box 52099, Berea Road, Durban, 4007 South Africa. & School of Chemistry & Physics, University of KwaZulu-Natal, Durban, 4041 South Africa.</mods:affiliation>
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<mods:roleTerm id="036ADBC380F87D5E822DEA5D6079BFDE">Author</mods:roleTerm>
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<mods:namePart id="ABBC59A294D3A6D2D8716FDA2EDC0796">Smith, Gideon F.</mods:namePart>
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<mods:affiliation id="64E67F85C8CC6CCDA9D50CBBD6F1ED09">Ria Olivier Herbarium, Department of Botany, Nelson Mandela University, P. O. Box 77000, Gqeberha, 6031 South Africa.</mods:affiliation>
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<mods:title id="0AC17B4C01BBF3CE1B69C730F466236B">Phytotaxa</mods:title>
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<mods:part id="E29DB1BA829598BA04F7BB4F309AA856">
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<mods:date id="A6F1BC316512FD477DB06CC7E655A461">2023</mods:date>
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<mods:number id="92A765FE5844685AD35BCB66B00EAA1F">2023-12-28</mods:number>
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<mods:number id="C64036F48962FAC60EDD07C8E3B26B7E">632</mods:number>
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<mods:identifier id="A129135D3A84EA8EDEC4B0E303DF282E" type="DOI">10.11646/phytotaxa.632.2.8</mods:identifier>
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<subSubSection id="C35A654BFFABFFC911C16F48FC74F8AF" box="[136,943,1876,1903]" pageId="2" pageNumber="186" type="nomenclature">
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<paragraph id="8BFF36C0FFABFFC911C16F48FC74F8AF" blockId="2.[136,943,1876,1903]" box="[136,943,1876,1903]" pageId="2" pageNumber="186">
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<heading id="D0B781ACFFABFFC911C16F48FC74F8AF" box="[136,943,1876,1903]" fontSize="11" level="2" pageId="2" pageNumber="186" reason="3">
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<taxonomicName id="4C404D43FFABFFC911C16F48FD78F8AF" authority="N.R.Crouch & Gideon F.Sm." authorityName="N. R. Crouch & Gideon F. Sm." authorityYear="2023" box="[136,675,1876,1903]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="2" pageNumber="186" phylum="Tracheophyta" rank="species" species="mckayi" status="sp. nov.">
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<emphasis id="B934EAD2FFABFFC911C16F48FE8DF8AE" bold="true" box="[136,342,1876,1903]" italics="true" pageId="2" pageNumber="186">Cotyledon mckayi</emphasis>
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N.R.Crouch & Gideon F.Sm.
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</taxonomicName>
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<emphasis id="B934EAD2FFABFFC913E06F48FCDBF8AF" bold="true" box="[681,768,1876,1902]" italics="true" pageId="2" pageNumber="186">
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<taxonomicNameLabel id="A20757A9FFABFFC913E06F48FCDBF8AF" box="[681,768,1876,1902]" pageId="2" pageNumber="186" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(
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<figureCitation id="137B2A45FFABFFC912596F48FC7CF8AF" box="[784,935,1876,1902]" captionStart="FIGURE 1" captionStartId="4.[136,229,1952,1974]" captionTargetBox="[206,1381,213,1900]" captionTargetId="figure-17@4.[180,1408,187,1925]" captionTargetPageId="4" captionText="FIGURE 1. Cotyledon mckayi from the UMzinyati River valley, KwaZulu-Natal, South Africa. A. Inflorescence lateral view. B. Habit of flowering plant. C. Vegetative components. D. Buds in lateral view. E. Habitat on UMzinyati River.F. Pistil with nectar scales. G. Andrew McKay (1968–) for whom the species is named. Scale bars: A: 8 mm; B: 160 mm; C: 95 mm; D: 6 mm; F: 4 mm. Photographs by the authors (A–B, F–G) and A. McKay (C–E)." figureDoi="http://doi.org/10.5281/zenodo.10438546" httpUri="https://zenodo.org/record/10438546/files/figure.png" pageId="2" pageNumber="186">Fig. 1A–D, F</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C35A654BFFABFFC911C16F60FE23F81B" pageId="2" pageNumber="186" type="materials_examined">
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<paragraph id="8BFF36C0FFABFFC911C16F60FE23F81B" blockId="2.[136,1452,1916,2082]" pageId="2" pageNumber="186">
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<emphasis id="B934EAD2FFABFFC911C16F60FF61F850" bold="true" box="[136,186,1916,1937]" pageId="2" pageNumber="186">Type</emphasis>
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:—
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<collectingCountry id="F3577650FFABFFC9119F6F60FE55F850" box="[214,398,1916,1937]" name="South Africa" pageId="2" pageNumber="186">SOUTH AFRICA</collectingCountry>
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.
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<collectingRegion id="4984F822FFABFFC910D46F60FD48F853" box="[413,659,1916,1938]" country="South Africa" name="KwaZulu-Natal" pageId="2" pageNumber="186">KwaZulu-Natal province</collectingRegion>
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—2830 (Dundee): UMzinyati River, tributary of the Tugela River (–DA), on cliff ledges adjacent to river,
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<date id="FFFE1000FFABFFC910966FBCFDBAF874" box="[479,609,1952,1974]" pageId="2" pageNumber="186" value="2023-07-16">16 July 2023</date>
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,
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<emphasis id="B934EAD2FFABFFC913246FBCFC54F874" box="[621,911,1952,1973]" italics="true" pageId="2" pageNumber="186">
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<collectionCode id="ED51AE05FFABFFC913246FBCFD5BF874" box="[621,640,1952,1973]" country="China" lsid="urn:lsid:biocol.org:col:13092" name="Nanjing University" pageId="2" pageNumber="186" type="Herbarium">N</collectionCode>
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. Crouch &
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<collectionCode id="ED51AE05FFABFFC913BC6FBCFCDCF874" box="[757,775,1952,1973]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="2" pageNumber="186" type="Herbarium">A</collectionCode>
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. McKay 1300
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</emphasis>
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(
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<typeStatus id="54FB8862FFABFFC912D46FBCFC2EF877" box="[925,1013,1952,1974]" pageId="2" pageNumber="186" type="holotype">holotype</typeStatus>
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, mounted as two sheets, Herb.
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<collectionCode id="ED51AE05FFABFFC914626FBCFA95F874" box="[1323,1358,1952,1973]" country="Thailand" name="Department of Microbiology, Faculty of Science" pageId="2" pageNumber="186">NU</collectionCode>
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barcodes
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<collectionCode id="ED51AE05FFABFFC911F46FD8FF3AF81B" box="[189,225,1988,2010]" country="Thailand" name="Department of Microbiology, Faculty of Science" pageId="2" pageNumber="186">NU</collectionCode>
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0094575! and
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<collectionCode id="ED51AE05FFABFFC910226FD8FE4BF81B" box="[363,400,1988,2010]" country="Thailand" name="Department of Microbiology, Faculty of Science" pageId="2" pageNumber="186">NU</collectionCode>
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0094576!).
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</paragraph>
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||
</subSubSection>
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<subSubSection id="C35A654BFFABFFC811C16FFBFAF3FEA8" lastPageId="3" lastPageNumber="187" pageId="2" pageNumber="186" type="diagnosis">
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<paragraph id="8BFF36C0FFABFFC811C16FFBFAF3FEA8" blockId="2.[136,1452,1916,2082]" lastBlockId="3.[189,1452,159,361]" lastPageId="3" lastPageNumber="187" pageId="2" pageNumber="186">
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<emphasis id="B934EAD2FFABFFC911C16FFBFF30F83C" bold="true" box="[136,235,2023,2045]" pageId="2" pageNumber="186">Diagnosis</emphasis>
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:—Plants of
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<taxonomicName id="4C404D43FFABFFC910216FF4FE11F83C" box="[360,458,2024,2045]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="2" pageNumber="186" phylum="Tracheophyta" rank="species" species="mckayi">
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<emphasis id="B934EAD2FFABFFC910216FF4FE11F83C" box="[360,458,2024,2045]" italics="true" pageId="2" pageNumber="186">C. mckayi</emphasis>
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</taxonomicName>
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||
(
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<figureCitation id="137B2A45FFABFFC910936FF4FDFEF83C" box="[474,549,2024,2046]" captionStart="FIGURE 1" captionStartId="4.[136,229,1952,1974]" captionTargetBox="[206,1381,213,1900]" captionTargetId="figure-17@4.[180,1408,187,1925]" captionTargetPageId="4" captionText="FIGURE 1. Cotyledon mckayi from the UMzinyati River valley, KwaZulu-Natal, South Africa. A. Inflorescence lateral view. B. Habit of flowering plant. C. Vegetative components. D. Buds in lateral view. E. Habitat on UMzinyati River.F. Pistil with nectar scales. G. Andrew McKay (1968–) for whom the species is named. Scale bars: A: 8 mm; B: 160 mm; C: 95 mm; D: 6 mm; F: 4 mm. Photographs by the authors (A–B, F–G) and A. McKay (C–E)." figureDoi="http://doi.org/10.5281/zenodo.10438546" httpUri="https://zenodo.org/record/10438546/files/figure.png" pageId="2" pageNumber="186">Fig. 1B</figureCitation>
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) are medium-sized to large, glabrous, perennial succulents with grey-green leaves having a characteristic purple-infusion, that can be separated from
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<taxonomicName id="4C404D43FFABFFC913A16010FC3CF7E0" authorityName="De Candolle" authorityYear="1828" baseAuthorityName="Haworth" baseAuthorityYear="1812" box="[744,999,2060,2081]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="2" pageNumber="186" phylum="Tracheophyta" rank="variety" species="orbiculata" variety="oblonga">
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<emphasis id="B934EAD2FFABFFC913A16010FCB3F7E0" box="[744,872,2060,2081]" italics="true" pageId="2" pageNumber="186">C. orbiculata</emphasis>
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var.
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<emphasis id="B934EAD2FFABFFC912D16010FC3CF7E0" box="[920,999,2060,2081]" italics="true" pageId="2" pageNumber="186">oblonga</emphasis>
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</taxonomicName>
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(
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<figureCitation id="137B2A45FFABFFC912BD6010FB9BF7E0" box="[1012,1088,2060,2082]" captionStart="FIGURE 2" captionStartId="5.[136,229,1953,1975]" captionTargetBox="[206,1381,216,1903]" captionTargetId="figure-22@5.[180,1407,190,1929]" captionTargetPageId="5" captionText="FIGURE 2. A. Cotyledon orbiculata var. oblonga (UMzinyati River valley). B. C. velutina (Mzimkulu River valley). C. C. barbeyi (Mkuze Game Reserve). D. C. nielsii (Dalton Wood). E. Lateral view of single flowers, L–R, C. orbiculata var. oblonga, C. mckayi, C. barbeyi, C. nielsii. E. Frontal view of corolla mouths, L–R, C. orbiculata var. oblonga, C. mckayi, C. barbeyi, C. nielsii. Scale bars: E, F: 13 mm. Photographs by the authors." figureDoi="http://doi.org/10.5281/zenodo.10438548" httpUri="https://zenodo.org/record/10438548/files/figure.png" pageId="2" pageNumber="186">Fig. 2A</figureCitation>
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) in presenting flowers with tubes that are not swollen about their middle but are rather subcylindrical and shorter (
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<quantity id="4CB89B25FFAAFFC812F86883FBC7FF74" box="[945,1052,159,181]" metricMagnitude="-2" metricUnit="m" metricValue="1.2" metricValueMax="1.4" metricValueMin="1.0" pageId="3" pageNumber="187" unit="mm" value="12.0" valueMax="14.0" valueMin="10.0">10–14 mm</quantity>
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in length rather than
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<quantity id="4CB89B25FFAAFFC815BD6883FA84FF75" box="[1268,1375,159,181]" metricMagnitude="-2" metricUnit="m" metricValue="2.15" metricValueMax="2.5" metricValueMin="1.8" pageId="3" pageNumber="187" unit="mm" value="21.5" valueMax="25.0" valueMin="18.0">18–25 mm</quantity>
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||
) and in having prominently channelled and keeled linear leaves (to
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||
<quantity id="4CB89B25FFAAFFC813B568DFFC90FF18" box="[764,843,195,217]" metricMagnitude="-1" metricUnit="m" metricValue="2.0" pageId="3" pageNumber="187" unit="mm" value="200.0">200 mm</quantity>
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long) at maturity, rather than obovate to oblanceolate leaves to a maximum of
|
||
<quantity id="4CB89B25FFAAFFC8101968FBFE44FF3C" box="[336,415,231,253]" metricMagnitude="-1" metricUnit="m" metricValue="1.4" pageId="3" pageNumber="187" unit="mm" value="140.0">140 mm</quantity>
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in length.
|
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<taxonomicName id="4C404D43FFAAFFC8134F68FBFD68FF3D" box="[518,691,231,252]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="mckayi">
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<emphasis id="B934EAD2FFAAFFC8134F68FBFD68FF3D" box="[518,691,231,252]" italics="true" pageId="3" pageNumber="187">Cotyledon mckayi</emphasis>
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||
</taxonomicName>
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||
differs from
|
||
<taxonomicName id="4C404D43FFAAFFC8127B68FBFC4CFF3D" authorityName="Schweinf. ex Baker" authorityYear="1893" box="[818,919,231,252]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="barbeyi">
|
||
<emphasis id="B934EAD2FFAAFFC8127B68FBFC4CFF3D" box="[818,919,231,252]" italics="true" pageId="3" pageNumber="187">C. barbeyi</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="137B2A45FFAAFFC812ED68FBFC35FF3D" box="[932,1006,231,253]" captionStart="FIGURE 2" captionStartId="5.[136,229,1953,1975]" captionTargetBox="[206,1381,216,1903]" captionTargetId="figure-22@5.[180,1407,190,1929]" captionTargetPageId="5" captionText="FIGURE 2. A. Cotyledon orbiculata var. oblonga (UMzinyati River valley). B. C. velutina (Mzimkulu River valley). C. C. barbeyi (Mkuze Game Reserve). D. C. nielsii (Dalton Wood). E. Lateral view of single flowers, L–R, C. orbiculata var. oblonga, C. mckayi, C. barbeyi, C. nielsii. E. Frontal view of corolla mouths, L–R, C. orbiculata var. oblonga, C. mckayi, C. barbeyi, C. nielsii. Scale bars: E, F: 13 mm. Photographs by the authors." figureDoi="http://doi.org/10.5281/zenodo.10438548" httpUri="https://zenodo.org/record/10438548/files/figure.png" pageId="3" pageNumber="187">Fig. 2B</figureCitation>
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||
) in its corolla tubes only very slightly bulging through the calyx lobes rather than prominently so, in tubes being subcylindrical rather than ampullaceous, in its shorter (to
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||
<quantity id="4CB89B25FFAAFFC8141C6917FA7EFEE1" box="[1365,1445,267,288]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="3" pageNumber="187" unit="mm" value="3.5" valueMax="4.0" valueMin="3.0">3–4 mm</quantity>
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||
) calyx lobes relative to those found in
|
||
<taxonomicName id="4C404D43FFAAFFC8136A6933FD5CFE85" authorityName="Schweinf. ex Baker" authorityYear="1893" box="[547,647,303,324]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="barbeyi">
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<emphasis id="B934EAD2FFAAFFC8136A6933FD5CFE85" box="[547,647,303,324]" italics="true" pageId="3" pageNumber="187">C. barbeyi</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<quantity id="4CB89B25FFAAFFC813DD6933FD28FE85" box="[660,755,303,324]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" metricValueMax="10.0" metricValueMin="8.0" pageId="3" pageNumber="187" unit="mm" value="9.0" valueMax="10.0" valueMin="8.0">8–10 mm</quantity>
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||
), in having corolla lobes that usually recurve rather than reflex, and in its squarish rather than oblong nectar scales bearing minutely repand and rounded rather than smooth cup-shaped apices.
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||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35A654BFFAAFFC811C1698BFA55FB08" pageId="3" pageNumber="187" type="description">
|
||
<paragraph id="8BFF36C0FFAAFFC811C1698BFA55FB08" blockId="3.[136,1452,407,1838]" pageId="3" pageNumber="187">
|
||
<emphasis id="B934EAD2FFAAFFC811C1698BFEC9FE70" bold="true" box="[136,274,407,433]" pageId="3" pageNumber="187">Description</emphasis>
|
||
:—Perennial, erect to spreading to leaning, few-branched, succulent shrub to 450–750(–1600) mm tall.
|
||
<emphasis id="B934EAD2FFAAFFC811C169A0FF13FE14" box="[136,200,444,469]" italics="true" pageId="3" pageNumber="187">Roots</emphasis>
|
||
fibrous.
|
||
<emphasis id="B934EAD2FFAAFFC8106669A7FE42FE14" box="[303,409,443,469]" italics="true" pageId="3" pageNumber="187">Branches</emphasis>
|
||
<quantity id="4CB89B25FFAAFFC810EB69A7FDC7FE17" box="[418,540,443,470]" metricMagnitude="-2" metricUnit="m" metricValue="2.15" metricValueMax="2.5" metricValueMin="1.8" pageId="3" pageNumber="187" unit="mm" value="21.5" valueMax="25.0" valueMin="18.0">18–25 mm</quantity>
|
||
in diam., green at first, becoming greyish brown to grey with age, ascending to horizontally spreading, then gracefully curved upwards, later decumbent under weight of leafy portions, leaf scars obvious.
|
||
<emphasis id="B934EAD2FFAAFFC811BB6A18FE9BFDDC" box="[242,320,516,541]" italics="true" pageId="3" pageNumber="187">Leaves</emphasis>
|
||
sessile, grey-green, firm, somewhat leathery, succulent, glabrous, with waxy bloom;
|
||
<emphasis id="B934EAD2FFAAFFC814686A1FFA84FDDC" box="[1313,1375,515,541]" italics="true" pageId="3" pageNumber="187">blade</emphasis>
|
||
(120–)130–200 ×
|
||
<quantity id="4CB89B25FFAAFFC810586A34FE56FD83" box="[273,397,552,578]" metricMagnitude="-2" metricUnit="m" metricValue="2.35" metricValueMax="3.0" metricValueMin="1.7" pageId="3" pageNumber="187" unit="mm" value="23.5" valueMax="30.0" valueMin="17.0">17–30 mm</quantity>
|
||
, purplish-infused, often more so towards the margin, linear-lanceolate when young, elongate-obovate to narrowly cymbiform at maturity;
|
||
<emphasis id="B934EAD2FFAAFFC813266A57FCC2FDA7" box="[623,793,587,614]" italics="true" pageId="3" pageNumber="187">adaxial surface</emphasis>
|
||
distinctly concave to more rarely planar, sometimes slightly recurved in terminal ⅕;
|
||
<emphasis id="B934EAD2FFAAFFC810D26A73FD92FD4B" box="[411,585,623,650]" italics="true" pageId="3" pageNumber="187">abaxial surface</emphasis>
|
||
distinctly convex, smooth;
|
||
<emphasis id="B934EAD2FFAAFFC812CC6A6CFC0EFD48" box="[901,981,624,649]" italics="true" pageId="3" pageNumber="187">margin</emphasis>
|
||
concolorous to often purple especially in upper ⅔, appearing cartilaginous, straight, continuous;
|
||
<emphasis id="B934EAD2FFAAFFC8124E6A88FCE7FD6C" box="[775,828,660,685]" italics="true" pageId="3" pageNumber="187">apex</emphasis>
|
||
acute, very shortly mucronate.
|
||
<emphasis id="B934EAD2FFAAFFC815F96A8FFA9DFD6C" box="[1200,1350,659,685]" italics="true" pageId="3" pageNumber="187">Inflorescence</emphasis>
|
||
an erect thyrse,
|
||
<quantity id="4CB89B25FFAAFFC811946AABFEAFFD13" box="[221,372,695,722]" metricMagnitude="-1" metricUnit="m" metricValue="3.25" metricValueMax="3.5" metricValueMin="3.0" pageId="3" pageNumber="187" unit="mm" value="325.0" valueMax="350.0" valueMin="300.0">300–350 mm</quantity>
|
||
long, comprising 3–5 dichasia, each with few (5–7) pendulous flowers;
|
||
<emphasis id="B934EAD2FFAAFFC815F36AABFAC4FD10" box="[1210,1311,695,721]" italics="true" pageId="3" pageNumber="187">peduncle</emphasis>
|
||
(250–)270– 300(–320) mm long, glabrous, with waxy bloom, with 1 pair of bracts that is soon shed.
|
||
<emphasis id="B934EAD2FFAAFFC815CE6AC7FB3DFD34" box="[1159,1254,731,757]" italics="true" pageId="3" pageNumber="187">Pedicels</emphasis>
|
||
<quantity id="4CB89B25FFAAFFC815A66AC7FAB1FD37" box="[1263,1386,731,758]" metricMagnitude="-2" metricUnit="m" metricValue="2.05" metricValueMax="2.5" metricValueMin="1.6" pageId="3" pageNumber="187" unit="mm" value="20.5" valueMax="25.0" valueMin="16.0">16–25 mm</quantity>
|
||
long.
|
||
<emphasis id="B934EAD2FFAAFFC811C16AE3FF3FFCD8" box="[136,228,767,793]" italics="true" pageId="3" pageNumber="187">Flowers</emphasis>
|
||
pendulous;
|
||
<emphasis id="B934EAD2FFAAFFC810396AE3FE7EFCD8" box="[368,421,767,793]" italics="true" pageId="3" pageNumber="187">buds</emphasis>
|
||
light green.
|
||
<emphasis id="B934EAD2FFAAFFC813716AE3FDA2FCD8" box="[568,633,767,793]" italics="true" pageId="3" pageNumber="187">Calyx</emphasis>
|
||
green to strongly purple-infused, with slight white-waxy bloom, bloom easily rubbed off, cat claw-like clasping base of corolla tube.
|
||
<emphasis id="B934EAD2FFAAFFC812726B3FFC5FFCFC" box="[827,900,803,829]" italics="true" pageId="3" pageNumber="187">Sepals</emphasis>
|
||
5, 3–4 ×
|
||
<quantity id="4CB89B25FFAAFFC812B96B38FB94FCFF" box="[1008,1103,804,830]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="3" pageNumber="187" unit="mm" value="3.5" valueMax="4.0" valueMin="3.0">3–4 mm</quantity>
|
||
, basally fused for 1.0–
|
||
<quantity id="4CB89B25FFAAFFC814196B3FFA7CFCFF" box="[1360,1447,803,830]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="3" pageNumber="187" unit="mm" value="1.5">1.5 mm</quantity>
|
||
, deltoid-triangular.
|
||
<emphasis id="B934EAD2FFAAFFC810136B5BFE6BFCA0" box="[346,432,839,865]" italics="true" pageId="3" pageNumber="187">Corolla</emphasis>
|
||
<quantity id="4CB89B25FFAAFFC810F16B54FDE8FCA3" box="[440,563,840,866]" metricMagnitude="-2" metricUnit="m" metricValue="2.2" metricValueMax="2.4" metricValueMin="2.0" pageId="3" pageNumber="187" unit="mm" value="22.0" valueMax="24.0" valueMin="20.0">20–24 mm</quantity>
|
||
long, cylindrical to slightly urceolate, marginally widest at base, very slightly bulging between calyx lobes, with waxy bloom externally, glabrous throughout except for small tufts of white hairs where filaments fused to tube;
|
||
<emphasis id="B934EAD2FFAAFFC810AC6B93FDB7FC68" box="[485,620,911,937]" italics="true" pageId="3" pageNumber="187">corolla tube</emphasis>
|
||
(10–)
|
||
<quantity id="4CB89B25FFAAFFC813F96B8CFCF1FC6B" box="[688,810,912,938]" metricMagnitude="-2" metricUnit="m" metricValue="1.35" metricValueMax="1.4" metricValueMin="1.3" pageId="3" pageNumber="187" unit="mm" value="13.5" valueMax="14.0" valueMin="13.0">13–14 mm</quantity>
|
||
long, 7–8(–9) mm in diam., uniformly reddish orange or with alternating, longitudinal light green sections under low light conditions;
|
||
<emphasis id="B934EAD2FFAAFFC812BC6BAFFB53FC0C" box="[1013,1160,947,973]" italics="true" pageId="3" pageNumber="187">corolla lobes</emphasis>
|
||
<quantity id="4CB89B25FFAAFFC815D96BA8FAD1FC0F" box="[1168,1290,948,974]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" metricValueMax="1.2" metricValueMin="1.0" pageId="3" pageNumber="187" unit="mm" value="11.0" valueMax="12.0" valueMin="10.0">10–12 mm</quantity>
|
||
long, 4–5(–6) mm in diam., reddish orange, linear-lanceolate, recurved, sometimes fully rolled under, apically rounded-acute to acute, minutely mucronate.
|
||
<emphasis id="B934EAD2FFAAFFC810F76BE0FDC0FBD7" box="[446,539,1020,1046]" italics="true" pageId="3" pageNumber="187">Stamens</emphasis>
|
||
10, in 2 obscure whorls, fused to corolla tube just below middle of tube;
|
||
<emphasis id="B934EAD2FFAAFFC8140C6BE7FA77FBD4" box="[1349,1452,1019,1045]" italics="true" pageId="3" pageNumber="187">filaments</emphasis>
|
||
free for
|
||
<quantity id="4CB89B25FFAAFFC811AA6C3CFEEEFBFB" box="[227,309,1056,1082]" metricMagnitude="-2" metricUnit="m" metricValue="1.2" pageId="3" pageNumber="187" unit="mm" value="12.0">12 mm</quantity>
|
||
, light whitish green;
|
||
<emphasis id="B934EAD2FFAAFFC8136A6C03FDACFBF8" box="[547,631,1055,1081]" italics="true" pageId="3" pageNumber="187">anthers</emphasis>
|
||
3.6 ×
|
||
<quantity id="4CB89B25FFAAFFC813F66C3CFCCCFBFB" box="[703,791,1056,1082]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" pageId="3" pageNumber="187" unit="mm" value="1.2">1.2 mm</quantity>
|
||
, yellow pre- and post-anthesis, elliptic.
|
||
<emphasis id="B934EAD2FFAAFFC815916C03FAC8FBF8" box="[1240,1299,1055,1081]" italics="true" pageId="3" pageNumber="187">Pistil</emphasis>
|
||
consisting of 5 carpels, elliptic, bulged in centre;
|
||
<emphasis id="B934EAD2FFAAFFC8136B6C5FFDAFFB9C" box="[546,628,1091,1117]" italics="true" pageId="3" pageNumber="187">carpels</emphasis>
|
||
<quantity id="4CB89B25FFAAFFC813356C5FFD39FB9F" box="[636,738,1091,1118]" metricMagnitude="-2" metricUnit="m" metricValue="1.55" pageId="3" pageNumber="187" unit="mm" value="15.5">15.5 mm</quantity>
|
||
long, shiny mid-green, tapering upwards;
|
||
<emphasis id="B934EAD2FFAAFFC8158F6C5FFADFFB9C" box="[1222,1284,1091,1117]" italics="true" pageId="3" pageNumber="187">styles</emphasis>
|
||
<quantity id="4CB89B25FFAAFFC814456C58FAB0FB9F" box="[1292,1387,1092,1118]" metricMagnitude="-3" metricUnit="m" metricValue="7.5" metricValueMax="8.0" metricValueMin="7.0" pageId="3" pageNumber="187" unit="mm" value="7.5" valueMax="8.0" valueMin="7.0">7–8 mm</quantity>
|
||
long, ± connivent to slightly spreading above;
|
||
<emphasis id="B934EAD2FFAAFFC813046C74FD04FB40" box="[589,735,1127,1153]" italics="true" pageId="3" pageNumber="187">nectar scales</emphasis>
|
||
1.5 ×
|
||
<quantity id="4CB89B25FFAAFFC8126C6C7BFCA7FB43" box="[805,892,1127,1154]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="3" pageNumber="187" unit="mm" value="1.5">1.5 mm</quantity>
|
||
, uniformly light greenish yellow, squarish, vessellike turned upwards, minutely repand above, separate, arranged in broken ring.
|
||
<emphasis id="B934EAD2FFAAFFC815406C97FBB0FB64" box="[1033,1131,1163,1189]" italics="true" pageId="3" pageNumber="187">Follicles</emphasis>
|
||
<quantity id="4CB89B25FFAAFFC8153A6C97FB37FB67" box="[1139,1260,1163,1190]" metricMagnitude="-2" metricUnit="m" metricValue="1.55" metricValueMax="1.6" metricValueMin="1.5" pageId="3" pageNumber="187" unit="mm" value="15.5" valueMax="16.0" valueMin="15.0">15–16 mm</quantity>
|
||
long, shiny light green, enveloped in dry, white, purple-infused remains of corolla.
|
||
<emphasis id="B934EAD2FFAAFFC812246CB3FC76FB08" box="[877,941,1199,1225]" italics="true" pageId="3" pageNumber="187">Seeds</emphasis>
|
||
not seen.
|
||
<emphasis id="B934EAD2FFAAFFC815576CB3FAD4FB08" box="[1054,1295,1199,1225]" italics="true" pageId="3" pageNumber="187">Chromosome number</emphasis>
|
||
: unknown.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35A654BFFAAFFC811F46CCFFA41F8EC" pageId="3" pageNumber="187" type="distribution">
|
||
<paragraph id="8BFF36C0FFAAFFC811F46CCFFAB8FABC" blockId="3.[136,1452,407,1838]" pageId="3" pageNumber="187">
|
||
<emphasis id="B934EAD2FFAAFFC811F46CCFFE3BFB2C" bold="true" box="[189,480,1235,1262]" pageId="3" pageNumber="187">Distribution and habitat</emphasis>
|
||
:—
|
||
<taxonomicName id="4C404D43FFAAFFC8134D6CCFFD16FB2C" box="[516,717,1235,1261]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="mckayi">
|
||
<emphasis id="B934EAD2FFAAFFC8134D6CCFFD16FB2C" box="[516,717,1235,1261]" italics="true" pageId="3" pageNumber="187">Cotyledon mckayi</emphasis>
|
||
</taxonomicName>
|
||
is so far only known from the valley of the UMzinyati River, and along a short section of the Tugela River downstream of its confluence with the UMzinyati, some
|
||
<quantity id="4CB89B25FFAAFFC8158D6CE4FAD1FAD0" box="[1220,1290,1271,1298]" metricMagnitude="4" metricUnit="m" metricValue="2.0" pageId="3" pageNumber="187" unit="km" value="20.0">20 km</quantity>
|
||
east of Tugela Ferry, in central
|
||
<collectingRegion id="4984F822FFAAFFC810766D07FE29FAF4" box="[319,498,1307,1333]" country="South Africa" name="KwaZulu-Natal" pageId="3" pageNumber="187">KwaZulu-Natal</collectingRegion>
|
||
. This new species has been observed at five separate localities, with a known range of
|
||
<quantity id="4CB89B25FFAAFFC811C16D5CFF0BFA98" box="[136,208,1343,1370]" metricMagnitude="4" metricUnit="m" metricValue="1.8" pageId="3" pageNumber="187" unit="km" value="18.0">18 km</quantity>
|
||
from north to south along the UMzinyati River valley. Plants occur singly along cliffside rock ledges of these two rivers, on mainly western aspects although plants are always found in the shade of surrounding vegetation.
|
||
</paragraph>
|
||
<paragraph id="8BFF36C0FFAAFFC811F46D9BFC7BF9F0" blockId="3.[136,1452,407,1838]" pageId="3" pageNumber="187">
|
||
The entire known natural geographical distribution range (
|
||
<figureCitation id="137B2A45FFAAFFC8122B6D9BFC7CFA63" box="[866,935,1415,1442]" captionStart="FIGURE 3" captionStartId="6.[136,229,1200,1222]" captionTargetBox="[168,1417,202,1158]" captionTargetId="figure-17@6.[151,1436,190,1176]" captionTargetPageId="6" captionText="FIGURE 3. Known geographic distribution range of C. mckayi (■)." figureDoi="http://doi.org/10.5281/zenodo.10438550" httpUri="https://zenodo.org/record/10438550/files/figure.png" pageId="3" pageNumber="187">Fig. 3</figureCitation>
|
||
) of the species falls within the Maputaland- Pondoland Region of Endemism (
|
||
<bibRefCitation id="EFD14B31FFAAFFC8134A6DB0FCB2FA07" author="Van Wyk, A. E. & Smith, G. F." box="[515,873,1451,1478]" pageId="3" pageNumber="187" refId="ref5847" refString="Van Wyk, A. E. & Smith, G. F. (2001) Regions of floristic endemism in southern Africa. A review with emphasis on succulents. Umdaus Press, Hatfield, Pretoria, 199 pp." type="book" year="2001">Van Wyk & Smith 2001: 82–85</bibRefCitation>
|
||
), and further within the Greater Midlands Centre of Endemism recently recognised by Carbutt (2023).
|
||
<taxonomicName id="4C404D43FFAAFFC8138E6DD3FC49FA28" box="[711,914,1487,1513]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="mckayi">
|
||
<emphasis id="B934EAD2FFAAFFC8138E6DD3FC49FA28" box="[711,914,1487,1513]" italics="true" pageId="3" pageNumber="187">Cotyledon mckayi</emphasis>
|
||
</taxonomicName>
|
||
occurs in soils overlying dolomitic bedrock, at elevations of
|
||
<emphasis id="B934EAD2FFAAFFC810576DE8FEE3F9CC" box="[286,312,1524,1549]" italics="true" pageId="3" pageNumber="187">ca</emphasis>
|
||
.
|
||
<quantity id="4CB89B25FFAAFFC8100F6DEFFE1DF9CF" box="[326,454,1523,1550]" metricMagnitude="2" metricUnit="m" metricValue="5.55" metricValueMax="6.6" metricValueMin="4.5" pageId="3" pageNumber="187" unit="m" value="555.0" valueMax="660.0" valueMin="450.0">450–660 m</quantity>
|
||
, within savannah vegetation of Thukela Valley Bushveld (SVs 1) (
|
||
<bibRefCitation id="EFD14B31FFAAFFC815E06DEFFA7FF9CC" author="Rutherford, M. C. & Mucina, L. & Lotter, M. C. & Bredenkamp, G. J. & Smit, J. H. L. & Scott-Shaw, C. R. & Hoare, D. B. & Goodman, P. S. & Bezuidenhout, H. & Scott, L. & Ellis, F. & Powrie, L. W. & Siebert, F. & Mostert, T. H. & Henning, B. J. & Venter, C. E. & Camp, K. G. T. & Siebert, S. J. & Matthews, W. S. & Burrows, J. E. & Dobson, L. & Van Rooyen, N. & Schmidt, E. & Winter, P. J. D. & Du Preez, P. J. & Ward, R. A. & Williamson, S. & Hurter, P. J. H." box="[1193,1444,1523,1550]" pageId="3" pageNumber="187" pagination="439 - 567" refId="ref5073" refString="Rutherford, M. C., Mucina, L., Lotter, M. C., Bredenkamp, G. J., Smit, J. H. L., Scott-Shaw, C. R., Hoare, D. B., Goodman, P. S., Bezuidenhout, H., Scott, L., Ellis, F., Powrie, L. W., Siebert, F., Mostert, T. H., Henning, B. J., Venter, C. E., Camp, K. G. T., Siebert, S. J., Matthews, W. S., Burrows, J. E., Dobson, L., Van Rooyen, N., Schmidt, E., Winter, P. J. D., Du Preez, P. J., Ward, R. A., Williamson, S. & Hurter, P. J. H. (2006) Savanna Biome. In: Mucina, L. & Rutherford, M. C. (Eds.) The vegetation of South Africa, Lesotho and Swaziland. Strelitzia 19. South African National Biodiversity Institute, Pretoria, pp. 439 - 567." type="book chapter" year="2006">
|
||
Rutherford
|
||
<emphasis id="B934EAD2FFAAFFC814656DE8FA86F9CC" box="[1324,1373,1523,1549]" italics="true" pageId="3" pageNumber="187">et al</emphasis>
|
||
. 2006
|
||
</bibRefCitation>
|
||
) (
|
||
<figureCitation id="137B2A45FFAAFFC811D96E0BFF3EF9F3" box="[144,229,1559,1586]" captionStart="FIGURE 1" captionStartId="4.[136,229,1952,1974]" captionTargetBox="[206,1381,213,1900]" captionTargetId="figure-17@4.[180,1408,187,1925]" captionTargetPageId="4" captionText="FIGURE 1. Cotyledon mckayi from the UMzinyati River valley, KwaZulu-Natal, South Africa. A. Inflorescence lateral view. B. Habit of flowering plant. C. Vegetative components. D. Buds in lateral view. E. Habitat on UMzinyati River.F. Pistil with nectar scales. G. Andrew McKay (1968–) for whom the species is named. Scale bars: A: 8 mm; B: 160 mm; C: 95 mm; D: 6 mm; F: 4 mm. Photographs by the authors (A–B, F–G) and A. McKay (C–E)." figureDoi="http://doi.org/10.5281/zenodo.10438546" httpUri="https://zenodo.org/record/10438546/files/figure.png" pageId="3" pageNumber="187">Fig. 1F</figureCitation>
|
||
). No localities within the known range are formally protected.
|
||
</paragraph>
|
||
<paragraph id="8BFF36C0FFAAFFC811F46E27FECAF9B8" blockId="3.[136,1452,407,1838]" pageId="3" pageNumber="187">
|
||
<emphasis id="B934EAD2FFAAFFC811F46E27FEA3F994" bold="true" box="[189,376,1595,1621]" pageId="3" pageNumber="187">Flowering time</emphasis>
|
||
:—
|
||
<taxonomicName id="4C404D43FFAAFFC810D56E27FDB1F994" box="[412,618,1595,1621]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="mckayi">
|
||
<emphasis id="B934EAD2FFAAFFC810D56E27FDB1F994" box="[412,618,1595,1621]" italics="true" pageId="3" pageNumber="187">Cotyledon mckayi</emphasis>
|
||
</taxonomicName>
|
||
flowers mainly in the winter months, June to August in the southern hemisphere.
|
||
</paragraph>
|
||
<paragraph id="8BFF36C0FFAAFFC811F46E98FA41F8EC" blockId="3.[136,1452,407,1838]" pageId="3" pageNumber="187">
|
||
<emphasis id="B934EAD2FFAAFFC811F46E98FEEBF95F" bold="true" box="[189,304,1668,1694]" pageId="3" pageNumber="187">Eponymy</emphasis>
|
||
:—
|
||
<taxonomicName id="4C404D43FFAAFFC8101D6E9FFDC6F95C" box="[340,541,1667,1693]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="mckayi">
|
||
<emphasis id="B934EAD2FFAAFFC8101D6E9FFDC6F95C" box="[340,541,1667,1693]" italics="true" pageId="3" pageNumber="187">Cotyledon mckayi</emphasis>
|
||
</taxonomicName>
|
||
is named for Mr Andrew McKay (born
|
||
<date id="FFFE1000FFAAFFC812916E98FBB4F95C" box="[984,1135,1667,1694]" pageId="3" pageNumber="187" value="1968-06-19">19 June 1968</date>
|
||
,
|
||
<collectingRegion id="4984F822FFAAFFC815306E9FFB31F95C" box="[1145,1258,1667,1693]" country="United Kingdom" name="Liverpool" pageId="3" pageNumber="187">Liverpool</collectingRegion>
|
||
,
|
||
<collectingCountry id="F3577650FFAAFFC815BC6E9FFA89F95C" box="[1269,1362,1667,1693]" name="United Kingdom" pageId="3" pageNumber="187">England</collectingCountry>
|
||
–) (
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<figureCitation id="137B2A45FFAAFFC814376E9FFF77F903" captionStart="FIGURE 1" captionStartId="4.[136,229,1952,1974]" captionTargetBox="[206,1381,213,1900]" captionTargetId="figure-17@4.[180,1408,187,1925]" captionTargetPageId="4" captionText="FIGURE 1. Cotyledon mckayi from the UMzinyati River valley, KwaZulu-Natal, South Africa. A. Inflorescence lateral view. B. Habit of flowering plant. C. Vegetative components. D. Buds in lateral view. E. Habitat on UMzinyati River.F. Pistil with nectar scales. G. Andrew McKay (1968–) for whom the species is named. Scale bars: A: 8 mm; B: 160 mm; C: 95 mm; D: 6 mm; F: 4 mm. Photographs by the authors (A–B, F–G) and A. McKay (C–E)." figureDoi="http://doi.org/10.5281/zenodo.10438546" httpUri="https://zenodo.org/record/10438546/files/figure.png" pageId="3" pageNumber="187">Fig. 1G</figureCitation>
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), a civil engineer, keen amateur field botanist, and succulent plant enthusiast. Aside from discovering this new
|
||
<taxonomicName id="4C404D43FFAAFFC811C16ED7FE8EF924" box="[136,341,1739,1765]" pageId="3" pageNumber="187">
|
||
<emphasis id="B934EAD2FFAAFFC811C16ED7FF20F924" box="[136,251,1739,1765]" italics="true" pageId="3" pageNumber="187">Cotyledon</emphasis>
|
||
species
|
||
</taxonomicName>
|
||
, he has additionally greatly increased our understanding of the distribution of the recently described
|
||
<taxonomicName id="4C404D43FFAAFFC811C16EECFF36F8C8" box="[136,237,1775,1802]" class="Magnoliopsida" family="Crassulaceae" genus="Cotyledon" kingdom="Plantae" order="Saxifragales" pageId="3" pageNumber="187" phylum="Tracheophyta" rank="species" species="nielsii">
|
||
<emphasis id="B934EAD2FFAAFFC811C16EECFF36F8C8" box="[136,237,1775,1802]" italics="true" pageId="3" pageNumber="187">C. nielsii</emphasis>
|
||
</taxonomicName>
|
||
within the province, which he has shown to extend in range from the Umkomaas River in the south through to the Sikoto River in the north, rather than being restricted to the eThekwini metropolitan region as earlier thought.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |