330 lines
27 KiB
XML
330 lines
27 KiB
XML
<document Ha="Haseltonia.29.16-23.pdf" ID-DOI="10.2985/026.029.0103" IM.bibliography_approvedBy="julia" IM.illustrations_approvedBy="julia" IM.materialsCitations_approvedBy="julia" IM.metadata_approvedBy="julia" IM.tables_approvedBy="julia" IM.taxonomicNames_approvedBy="julia" IM.treatments_approvedBy="julia" checkinTime="1681983502486" checkinUser="pindintloko" docAuthor="Klak, Cornelia, Hanáček, Pavel & Bruyns, Peter V." docDate="2023" docId="294D4935FFA35F37FD648486FC2FFA62" docLanguage="en" docName="_Pindi.pdf.imf" docOrigin="Haseltonia 29 (1)" docSource="http://dx.doi.org/10.2985/026.029.0103" docTitle="Namaquanthus cephalophylloides Klak 2001, sp. nov." docType="treatment" docVersion="2" lastPageNumber="22" masterDocId="D574314DFFA65F31FFA48109FFE3FFC7" masterDocTitle="Two New Species of Aizoaceae (Ruschieae, Ruschoideae) from the Cape, South Africa." masterLastPageNumber="23" masterPageNumber="16" pageNumber="21" updateTime="1682709032570" updateUser="julia" zenodo-license-document="CC-BY-SA-4.0" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Two New Species of Aizoaceae (Ruschieae, Ruschoideae) from the Cape, South Africa.</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Klak, Cornelia</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Hanáček, Pavel</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Bruyns, Peter V.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>Haseltonia</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2023</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2023-03-08</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>29</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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||
</mods:detail>
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<mods:extent unit="page">
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<mods:start>16</mods:start>
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<mods:end>23</mods:end>
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</mods:extent>
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</mods:part>
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||
</mods:relatedItem>
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||
<mods:location>
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<mods:url>http://dx.doi.org/10.2985/026.029.0103</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.2985/026.029.0103</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:plazi:treatment:294D4935FFA35F37FD648486FC2FFA62" httpUri="http://treatment.plazi.org/id/294D4935FFA35F37FD648486FC2FFA62" lastPageId="6" lastPageNumber="22" pageId="5" pageNumber="21">
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||
<subSubSection pageId="5" pageNumber="21" type="nomenclature">
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||
<paragraph blockId="5.[672,1189,1423,1766]" pageId="5" pageNumber="21">
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<emphasis bold="true" box="[704,1090,1423,1445]" pageId="5" pageNumber="21">
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2.
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<taxonomicName authority="Klak" authorityName="Klak" authorityYear="2001" box="[735,1147,1423,1446]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="5" pageNumber="21" phylum="Tracheophyta" rank="species" species="cephalophylloides" status="sp. nov.">
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<emphasis bold="true" box="[735,1090,1423,1445]" italics="true" pageId="5" pageNumber="21">Namaquanthus cephalophylloides</emphasis>
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Klak
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</taxonomicName>
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||
</emphasis>
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<emphasis bold="true" pageId="5" pageNumber="21">
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<taxonomicNameLabel pageId="5" pageNumber="21" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(Fig. 5)
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</paragraph>
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</subSubSection>
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||
<subSubSection pageId="5" pageNumber="21" type="type_taxon">
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<paragraph blockId="5.[672,1189,1423,1766]" pageId="5" pageNumber="21">
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<materialsCitation collectedFrom="Kwaganap River, between Port Nolloth and Grootmis" collectingDate="2021-07-19" collectionCode="BOL" collectorName="Klak" country="South Africa" elevation="0" location="Kwaganap River, between Port Nolloth and Grootmis" pageId="5" pageNumber="21" specimenCode="2917" specimenCount="1" stateProvince="Northern Cape" typeStatus="holo">
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Type:
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<collectingCountry box="[779,921,1477,1499]" name="South Africa" pageId="5" pageNumber="21" value="South Africa">South Africa</collectingCountry>
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,
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<collectingRegion box="[945,1114,1477,1499]" country="South Africa" name="Northern Cape" pageId="5" pageNumber="21">Northern Cape</collectingRegion>
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||
,
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<location LSID="urn:lsid:plazi:treatment:294D4935FFA35F37FD648486FC2FFA62:A43BAEF8FFA35F34FBD684CCFD27F9D7" country="South Africa" name="Kwaganap River, between Port Nolloth and Grootmis" pageId="5" pageNumber="21" stateProvince="Northern Cape">Kwaganap River, between Port Nolloth and Grootmis</location>
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(2917 AC),
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<date box="[845,979,1530,1552]" pageId="5" pageNumber="21" value="2021-07-19">
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<collectingDate box="[845,979,1530,1552]" pageId="5" pageNumber="21" value="2021-07-19">
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19 Jul.
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<quantity box="[925,1063,1530,1552]" metricMagnitude="6" metricUnit="m" metricValue="2.02115" pageId="5" pageNumber="21" unit="m" value="2021150.0">
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2021,
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<elevation box="[993,1066,1530,1552]" pageId="5" pageNumber="21">150 m,</elevation>
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</quantity>
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||
</collectingDate>
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||
</date>
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<emphasis box="[1077,1183,1530,1551]" italics="true" pageId="5" pageNumber="21">
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<collectorName box="[1077,1122,1530,1551]" pageId="5" pageNumber="21">Klak</collectorName>
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<specimenCode box="[1132,1183,1530,1551]" pageId="5" pageNumber="21">2917</specimenCode>
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</emphasis>
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(
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<collectionCode box="[679,732,1557,1578]" collectionName="BOL" pageId="5" pageNumber="21">BOL</collectionCode>
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,
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<typeStatus box="[744,796,1557,1579]" pageId="5" pageNumber="21">holo</typeStatus>
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.)
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="21" type="diagnosis">
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<paragraph blockId="5.[672,1189,1423,1766]" pageId="5" pageNumber="21">
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Differs from
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<taxonomicName ID-CoL="45LG2" ID-ENA="188852" box="[839,975,1584,1605]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="5" pageNumber="21" phylum="Tracheophyta" rank="species" species="vanheerdei">
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<emphasis box="[839,975,1584,1605]" italics="true" pageId="5" pageNumber="21">N. vanheerdei</emphasis>
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</taxonomicName>
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by its much smaller stature (to
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<quantity box="[793,859,1610,1632]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="5" pageNumber="21" unit="cm" value="10.0">10 cm</quantity>
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tall as opposed to
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<quantity box="[1073,1139,1610,1632]" metricMagnitude="-1" metricUnit="m" metricValue="3.0" pageId="5" pageNumber="21" unit="cm" value="30.0">30 cm</quantity>
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tall in
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<taxonomicName box="[705,844,1637,1659]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="5" pageNumber="21" phylum="Tracheophyta" rank="species" species="vanheerdei">
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<emphasis box="[705,844,1637,1659]" italics="true" pageId="5" pageNumber="21">N. vanheerdei</emphasis>
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</taxonomicName>
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). In addition, the stalks of maturing fruit bend downwards and the fruit finally detach from the plant along a preformed incision, whereas the fruit remain erect and attached to the fruit-stalk in
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<taxonomicName box="[809,945,1744,1765]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="5" pageNumber="21" phylum="Tracheophyta" rank="species" species="vanheerdei">
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<emphasis box="[809,945,1744,1765]" italics="true" pageId="5" pageNumber="21">N. vanheerdei</emphasis>
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</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="22" type="description">
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<paragraph blockId="6.[135,654,197,1405]" pageId="6" pageNumber="22">
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Dwarf, clump forming more or less stemless perennial succulent, with only basal part very woody, <10 ×
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<quantity box="[307,378,250,272]" metricMagnitude="-1" metricUnit="m" metricValue="1.5" pageId="6" pageNumber="22" unit="cm" value="15.0">15 cm</quantity>
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.
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<emphasis bold="true" box="[394,462,251,272]" italics="true" pageId="6" pageNumber="22">Leaves</emphasis>
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opposite, ascending, ± free to their bases, finger-shaped, with upper side only slightly flattened, 45–60 ×
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<quantity metricMagnitude="-2" metricUnit="m" metricValue="1.05" metricValueMax="1.3" metricValueMin="0.8" pageId="6" pageNumber="22" unit="mm" value="10.5" valueMax="13.0" valueMin="8.0">8–13 mm</quantity>
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, tips obtuse.
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<emphasis bold="true" box="[339,418,330,352]" italics="true" pageId="6" pageNumber="22">Flowers</emphasis>
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solitary,
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<quantity box="[529,646,330,352]" metricMagnitude="-2" metricUnit="m" metricValue="4.75" metricValueMax="5.0" metricValueMin="4.5" pageId="6" pageNumber="22" unit="mm" value="47.5" valueMax="50.0" valueMin="45.0">45–50 mm</quantity>
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diam., pedicels erect to slightly bent, bending further down as fruit matures, to
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<quantity box="[511,588,383,405]" metricMagnitude="-2" metricUnit="m" metricValue="4.5" pageId="6" pageNumber="22" unit="mm" value="45.0">45 mm</quantity>
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long, bracts succulent and positioned near the base of plant and thus hidden between the leaves; sepals 4, subequal, succulent, flat and broad, ± 8.5 ×
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<quantity box="[137,221,490,512]" metricMagnitude="-3" metricUnit="m" metricValue="8.2" pageId="6" pageNumber="22" unit="mm" value="8.2">8.2 mm</quantity>
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, 2 slightly narrower to
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<quantity box="[471,533,490,512]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="6" pageNumber="22" unit="mm" value="5.0">5 mm</quantity>
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broad and with membranous margins; petaloid staminodes brilliant magenta, paler towards the center, 2- to 3-seriate, ± same length, 22–24 ×
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<quantity box="[511,598,570,592]" metricMagnitude="-3" metricUnit="m" metricValue="2.8" pageId="6" pageNumber="22" unit="mm" value="2.8">2.8 mm</quantity>
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||
, lanceolate to obtuse, filamentous staminodes absent; stamens numerous, filaments
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||
<quantity box="[457,588,623,645]" metricMagnitude="-3" metricUnit="m" metricValue="4.35" metricValueMax="5.2" metricValueMin="3.5" pageId="6" pageNumber="22" unit="mm" value="4.35" valueMax="5.2" valueMin="3.5">3.5–5.2 mm</quantity>
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long, inner ones shortest, white, papillate at base, in 3–4 rows, pollen white; stigmas 8–9, short, feathery,
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<quantity box="[183,266,703,725]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" pageId="6" pageNumber="22" unit="mm" value="2.5">2.5 mm</quantity>
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||
long, yellowish, top of ovary slightly raised in the center; nectary forming green, crenulated ring.
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||
<emphasis bold="true" box="[313,395,756,778]" italics="true" pageId="6" pageNumber="22">Capsule</emphasis>
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||
8- to 9-locular, detaching from pedicel once mature,
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||
<quantity box="[458,531,784,805]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="22" unit="mm" value="10.0">10 mm</quantity>
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||
diam., top raised to
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||
<quantity box="[235,299,810,832]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="6" pageNumber="22" unit="mm" value="3.0">3 mm</quantity>
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||
, with low rims, lower part
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||
<quantity box="[586,646,811,832]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" pageId="6" pageNumber="22" unit="mm" value="7.0">7 mm</quantity>
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||
deep, rounded to bell-shaped, basally indented where pedicel attached, covering membranes thin and flexible, raised in the center, without additional closing-devices below, completely covering the locules, without closing-bodies, valve wings broad, ± rectangular.
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||
<emphasis bold="true" box="[377,433,970,992]" italics="true" pageId="6" pageNumber="22">Seeds</emphasis>
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ochre, to
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<quantity box="[561,646,970,992]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="6" pageNumber="22" unit="mm" value="1.1">1.1 mm</quantity>
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long, echinate with slender papillae.
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</paragraph>
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||
</subSubSection>
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<subSubSection pageId="6" pageNumber="22" type="distribution">
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<paragraph blockId="6.[135,654,197,1405]" box="[137,500,1037,1059]" pageId="6" pageNumber="22">
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||
<emphasis bold="true" box="[137,500,1037,1059]" pageId="6" pageNumber="22">DISTRIBUTION AND ECOLOGY</emphasis>
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</paragraph>
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<paragraph blockId="6.[135,654,197,1405]" pageId="6" pageNumber="22">
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The species is only known from the Kwaganap River south-east of
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<collectingRegion box="[330,459,1104,1126]" pageId="6" pageNumber="22">Port Nolloth</collectingRegion>
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, in the arid winterrainfall region of northern
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<collectingRegion box="[420,556,1130,1152]" pageId="6" pageNumber="22">Namaqualand</collectingRegion>
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(Fig. 4). Here it occurs on shallow loamy soils overlaying gneiss with quartz-gravel on the surface. The species occurs at an altitude of around
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<specimenCount box="[499,571,1210,1232]" pageId="6" pageNumber="22" type="generic">
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<quantity box="[499,567,1210,1232]" metricMagnitude="2" metricUnit="m" metricValue="1.5" pageId="6" pageNumber="22" unit="m" value="150.0">150 m</quantity>
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.
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</specimenCount>
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It flowers between May and July. The similarly restricted
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<taxonomicName box="[135,269,1264,1285]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="vanheerdei">
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<emphasis box="[135,269,1264,1285]" italics="true" pageId="6" pageNumber="22">N. vanheerdei</emphasis>
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</taxonomicName>
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is only known from north- and westfacing quartzitic slopes around
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<quantity box="[456,521,1290,1312]" metricMagnitude="4" metricUnit="m" metricValue="3.0" pageId="6" pageNumber="22" unit="km" value="30.0">30 km</quantity>
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east of
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<collectingRegion pageId="6" pageNumber="22">Port Nolloth</collectingRegion>
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(Fig. 4).
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</paragraph>
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<paragraph blockId="6.[135,654,197,1405]" pageId="6" pageNumber="22">
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<emphasis bold="true" pageId="6" pageNumber="22">DISTINGUISHING FEATURES AND RELATIONSHIPS</emphasis>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="22" type="discussion">
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<paragraph blockId="6.[136,654,1424,1712]" lastBlockId="6.[679,1198,197,1445]" pageId="6" pageNumber="22">
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||
<taxonomicName box="[167,304,1424,1445]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="vanheerdei">
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<emphasis box="[167,304,1424,1445]" italics="true" pageId="6" pageNumber="22">N. vanheerdei</emphasis>
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</taxonomicName>
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forms shrubs to
|
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<quantity box="[483,547,1424,1445]" metricMagnitude="-1" metricUnit="m" metricValue="3.0" pageId="6" pageNumber="22" unit="cm" value="30.0">30 cm</quantity>
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||
high and to
|
||
<quantity box="[170,236,1450,1472]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="6" pageNumber="22" unit="cm" value="50.0">50 cm</quantity>
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||
diameter, whereas
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<taxonomicName authorityName="Klak" authorityYear="2001" box="[445,646,1450,1472]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="cephalophylloides">
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<emphasis box="[445,646,1450,1472]" italics="true" pageId="6" pageNumber="22">N. cephalophylloides</emphasis>
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</taxonomicName>
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||
is a clump-forming dwarf shrub that does not exceed
|
||
<quantity box="[190,253,1503,1525]" metricMagnitude="-1" metricUnit="m" metricValue="1.5" pageId="6" pageNumber="22" unit="cm" value="15.0">15 cm</quantity>
|
||
broad. Both species of
|
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<taxonomicName box="[498,646,1504,1525]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
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<emphasis box="[498,646,1504,1525]" italics="true" pageId="6" pageNumber="22">Namaquanthus</emphasis>
|
||
</taxonomicName>
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have thick, finger-shaped leaves that are more or less free to their bases.
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<collectingRegion box="[386,477,1557,1578]" pageId="6" pageNumber="22">However</collectingRegion>
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||
, in the new species the leaves are gray, almost white from a thick covering of wax, whereas
|
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<taxonomicName box="[410,549,1610,1632]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="vanheerdei">
|
||
<emphasis box="[410,549,1610,1632]" italics="true" pageId="6" pageNumber="22">N. vanheerdei</emphasis>
|
||
</taxonomicName>
|
||
has dark green leaves, which are typically partially blackened by a fungus or a lichen in their habitat (Fig. 2
|
||
<collectionCode box="[150,168,1690,1712]" pageId="6" pageNumber="22">B</collectionCode>
|
||
). Furthermore, both species possess large bril- liantly colored, magenta, solitary flowers.
|
||
<collectingRegion pageId="6" pageNumber="22">However</collectingRegion>
|
||
, the pedicels are erect and only reach
|
||
<quantity box="[1118,1190,224,245]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="22" unit="mm" value="10.0">10 mm</quantity>
|
||
long in
|
||
<taxonomicName box="[769,908,250,272]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="vanheerdei">
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||
<emphasis box="[769,908,250,272]" italics="true" pageId="6" pageNumber="22">N. vanheerdei</emphasis>
|
||
</taxonomicName>
|
||
(Fig. 2), whereas they are to
|
||
<quantity box="[713,789,277,299]" metricMagnitude="-2" metricUnit="m" metricValue="4.5" pageId="6" pageNumber="22" unit="mm" value="45.0">45 mm</quantity>
|
||
long and curved in
|
||
<taxonomicName authorityName="Klak" authorityYear="2001" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="cephalophylloides">
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||
<emphasis italics="true" pageId="6" pageNumber="22">N. cephalophylloides</emphasis>
|
||
</taxonomicName>
|
||
(Fig. 5
|
||
<collectionCode box="[792,810,303,325]" pageId="6" pageNumber="22">B</collectionCode>
|
||
). Unusual for
|
||
<taxonomicName box="[972,1112,304,325]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="vanheerdei">
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||
<emphasis box="[972,1112,304,325]" italics="true" pageId="6" pageNumber="22">N. vanheerdei</emphasis>
|
||
</taxonomicName>
|
||
is that the inner petals unfold only after several days, hiding the center of the flower in the beginning (Fig. 2
|
||
<collectionCode box="[752,771,384,405]" pageId="6" pageNumber="22">C</collectionCode>
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||
,
|
||
<collectionCode box="[788,810,384,405]" pageId="6" pageNumber="22">D</collectionCode>
|
||
). Such slow opening of the flowers was not observed for
|
||
<taxonomicName authorityName="Klak" authorityYear="2001" box="[915,1115,410,432]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="cephalophylloides">
|
||
<emphasis box="[915,1115,410,432]" italics="true" pageId="6" pageNumber="22">N. cephalophylloides</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<bibRefCitation author="Bolus, H. M. L." firstAuthor="Bolus" journalOrPublisher="Notes on Mesembryanthemum [H. M. L. Bolus]" pageId="6" pageNumber="22" pagination="257 - 258" part="3" refId="ref4839" refString="Bolus, H. M. L. 1954. Namaquanthus vanheerdei. Notes on Mesembryanthemum [H. M. L. Bolus] 3: 257 - 258." title="Namaquanthus vanheerdei" type="journal article" year="1954">Bolus (1954)</bibRefCitation>
|
||
reported the anthers and pollen to be deep purple for
|
||
<taxonomicName box="[799,939,464,485]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="vanheerdei">
|
||
<emphasis box="[799,939,464,485]" italics="true" pageId="6" pageNumber="22">N. vanheerdei</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<collectingRegion box="[958,1049,464,485]" pageId="6" pageNumber="22">However</collectingRegion>
|
||
, our own observations revealed that some plants can also have yellow pollen (Fig. 2
|
||
<collectionCode box="[907,926,517,539]" pageId="6" pageNumber="22">C</collectionCode>
|
||
), whereas the pollen is white in
|
||
<taxonomicName authorityName="Klak" authorityYear="2001" box="[775,973,543,565]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="cephalophylloides">
|
||
<emphasis box="[775,973,543,565]" italics="true" pageId="6" pageNumber="22">N. cephalophylloides</emphasis>
|
||
</taxonomicName>
|
||
. Noteworthy are the echinate seeds (Fig. 5
|
||
<collectionCode box="[900,917,570,592]" pageId="6" pageNumber="22">E</collectionCode>
|
||
,
|
||
<collectionCode box="[930,946,571,592]" pageId="6" pageNumber="22">F</collectionCode>
|
||
), which are common to both species. Unusual in
|
||
<taxonomicName authorityName="Klak" authorityYear="2001" box="[950,1150,597,619]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="cephalophylloides">
|
||
<emphasis box="[950,1150,597,619]" italics="true" pageId="6" pageNumber="22">N. cephalophylloides</emphasis>
|
||
</taxonomicName>
|
||
are the downward pointing fruits (Fig. 5
|
||
<collectionCode box="[1085,1105,623,645]" pageId="6" pageNumber="22">A</collectionCode>
|
||
), which become detached once they are mature. This contrasts with most of the species in the Ruschioideae, where the fruits are retained on the plant for 1–2 years or longer. In
|
||
<taxonomicName box="[984,1140,730,751]" class="Magnoliopsida" family="Aizoaceae" genus="Cephalophyllum" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
|
||
<emphasis box="[984,1140,730,751]" italics="true" pageId="6" pageNumber="22">Cephalophyllum</emphasis>
|
||
</taxonomicName>
|
||
, the tops of the fruits always point upwards and possess closing-bodies. Although papillate seeds are also found in
|
||
<taxonomicName box="[829,906,810,831]" class="Magnoliopsida" family="Aizoaceae" genus="Astridia" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
|
||
<emphasis box="[829,906,810,831]" italics="true" pageId="6" pageNumber="22">Astridia</emphasis>
|
||
</taxonomicName>
|
||
, the fruits of
|
||
<taxonomicName box="[1058,1135,810,831]" class="Magnoliopsida" family="Aizoaceae" genus="Astridia" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
|
||
<emphasis box="[1058,1135,810,831]" italics="true" pageId="6" pageNumber="22">Astridia</emphasis>
|
||
</taxonomicName>
|
||
have closing-bodies, which are absent in
|
||
<taxonomicName class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="6" pageNumber="22">Namaquanthus</emphasis>
|
||
</taxonomicName>
|
||
. A possible close relative is the monotypic
|
||
<taxonomicName box="[679,789,890,911]" class="Magnoliopsida" family="Aizoaceae" genus="Enarganthe" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
|
||
<emphasis box="[679,789,890,911]" italics="true" pageId="6" pageNumber="22">Enarganthe</emphasis>
|
||
</taxonomicName>
|
||
, which differs in its trigonous to clubshaped leaves and the pear-shaped, elongated, almost smooth seeds.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="6" pageNumber="22" type="etymology">
|
||
<paragraph blockId="6.[679,1198,197,1445]" box="[681,834,983,1005]" pageId="6" pageNumber="22">
|
||
<emphasis bold="true" box="[681,834,983,1005]" pageId="6" pageNumber="22">ETYMOLOGY</emphasis>
|
||
</paragraph>
|
||
<paragraph blockId="6.[679,1198,197,1445]" pageId="6" pageNumber="22">
|
||
The epithet refers to the superficial resemblance of the new species to members of
|
||
<taxonomicName box="[1013,1164,1050,1071]" class="Magnoliopsida" family="Aizoaceae" genus="Cephalophyllum" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
|
||
<emphasis box="[1013,1164,1050,1071]" italics="true" pageId="6" pageNumber="22">Cephalophyllum</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="6" pageNumber="22" type="conservation">
|
||
<paragraph blockId="6.[679,1198,197,1445]" box="[681,963,1090,1112]" pageId="6" pageNumber="22">
|
||
<emphasis bold="true" box="[681,963,1090,1112]" pageId="6" pageNumber="22">CONSERVATION STATUS</emphasis>
|
||
</paragraph>
|
||
<paragraph blockId="6.[679,1198,197,1445]" pageId="6" pageNumber="22">
|
||
We consider this species to be rare, because of its specific habitat requirements. These are large patches of quartz-gravel close to the sea. A similar habitat at
|
||
<collectingRegion box="[838,934,1210,1232]" pageId="6" pageNumber="22">Grootmis</collectingRegion>
|
||
near
|
||
<collectingRegion box="[1005,1094,1210,1232]" pageId="6" pageNumber="22">Kleinzee</collectingRegion>
|
||
, did not contain this species. This contrasts with
|
||
<taxonomicName authority="Klak" authorityName="Klak" class="Magnoliopsida" family="Aizoaceae" genus="Drosanthemopsis" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="kwaganapensis">
|
||
<emphasis italics="true" pageId="6" pageNumber="22">Drosanthemopsis kwaganapensis</emphasis>
|
||
Klak
|
||
</taxonomicName>
|
||
, which is found at the
|
||
<typeStatus box="[724,767,1291,1312]" pageId="6" pageNumber="22">type</typeStatus>
|
||
locality of
|
||
<taxonomicName authorityName="Klak" authorityYear="2001" box="[892,1094,1290,1312]" class="Magnoliopsida" family="Aizoaceae" genus="Namaquanthus" kingdom="Plantae" order="Caryophyllales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="cephalophylloides">
|
||
<emphasis box="[892,1094,1290,1312]" italics="true" pageId="6" pageNumber="22">N. cephalophylloides</emphasis>
|
||
</taxonomicName>
|
||
and also at Grootmis (
|
||
<bibRefCitation author="Klak, C. & P. Hanacek & P. V. Bruyns" box="[823,1001,1317,1339]" etAl="et al." firstAuthor="Klak" journalOrPublisher="South African Journal of Botany" pageId="6" pageNumber="22" pagination="67 - 81" part="116" refId="ref5101" refString="Klak, C., P. Hanacek and P. V. Bruyns. 2018. A recircumscription of Jacobsenia (Aizoaceae): Re-instating Drosanthemopsis, with two new quartz-endemics from Namaqualand, South Africa and sinking Knersia. South African Journal of Botany 116: 67 - 81." title="A recircumscription of Jacobsenia (Aizoaceae): Re-instating Drosanthemopsis, with two new quartz-endemics from Namaqualand, South Africa and sinking Knersia" type="journal article" year="2018">Klak et al. 2018</bibRefCitation>
|
||
). Given the isolat- ed nature and the high habitat-specificity of the known population, we recommend that it is considered Vulnerable and placed on the Red Data List of
|
||
<collectingRegion box="[755,896,1423,1445]" pageId="6" pageNumber="22">South African</collectingRegion>
|
||
plants.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |