240 lines
20 KiB
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240 lines
20 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.17.3672" ID-PMC="PMC3519350" ID-Pensoft-Pub="1314-2003-17-19" ID-Pensoft-UUID="FFE7FFFBFF95FFB3FFAEFFE6FFFCAD14" ID-PubMed="23233814" ID-Zenodo-Dep="576143" ModsDocID="1314-2003-17-19" checkinTime="1451251976034" checkinUser="pensoft" docAuthor="Stirton, Charles H., Muasya, A. Muthama & Vlok, Jan" docDate="2012" docId="0416C030751D5DABA34A3021008BAF06" docLanguage="en" docName="PhytoKeys 17: 19-23" docOrigin="PhytoKeys 17" docPubDate="2012-09-12" docSource="http://dx.doi.org/10.3897/phytokeys.17.3672" docTitle="Psoralea karooensis C. H. Stirt., Muasya & Vlok 2012, sp. nov." docType="treatment" docVersion="5" id="FFE7FFFBFF95FFB3FFAEFFE6FFFCAD14" lastPageNumber="21" masterDocId="FFE7FFFBFF95FFB3FFAEFFE6FFFCAD14" masterDocTitle="Psoralea karooensis (Psoraleeae, Fabaceae): a new species from the Klein Karoo region of South Africa" masterLastPageNumber="23" masterPageNumber="19" pageNumber="19" updateTime="1668140203407" updateUser="ExternalLinkService">
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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>Psoralea karooensis (Psoraleeae, Fabaceae): a new species from the Klein Karoo region of 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>Stirton, Charles H.</mods:namePart>
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<mods:affiliation>Bolus Herbarium, Botany Department, University of Cape Town, Private Bag X 3, Rondebosch 7700, South Africa</mods:affiliation>
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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>Muasya, A. Muthama</mods:namePart>
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<mods:affiliation>Bolus Herbarium, Botany Department, University of Cape Town, Private Bag X 3, Rondebosch 7700, South Africa</mods:affiliation>
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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>Vlok, Jan</mods:namePart>
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<mods:affiliation>Regalis, 102 Hope Street, Oudtshoorn 6620, South Africa</mods:affiliation>
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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>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2012</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2012-09-12</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>17</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>19</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/10.3897/phytokeys.17.3672</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">http://dx.doi.org/10.3897/phytokeys.17.3672</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-17-19</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FFE7FFFBFF95FFB3FFAEFFE6FFFCAD14</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576143</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="182229255" LSID="urn:lsid:plazi:treatment:0416C030751D5DABA34A3021008BAF06" httpUri="http://treatment.plazi.org/id/0416C030751D5DABA34A3021008BAF06" lastPageId="2" lastPageNumber="21" pageId="0" pageNumber="19">
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<subSubSection pageId="0" pageNumber="19" type="nomenclature">
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<paragraph pageId="0" pageNumber="19">
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<taxonomicName LSID="0416C030-751D-5DAB-A34A-3021008BAF06" authority="C. H. Stirt., Muasya & Vlok" authorityName="C. H. Stirt., Muasya & Vlok" authorityYear="2012" class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Psoralea karooensis" order="Fabales" pageId="0" pageNumber="19" phylum="Angiospermae" rank="species" species="karooensis" status="sp. nov.">Psoralea karooensis C.H. Stirt., Muasya & Vlok</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="19">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Plate 1" captionStartId="F1" captionText="Plate 1. Psoralea karooensis C. H. Stirt., Muasya & Vlok A overseasonal shoots B seasonal shoots C fused stipules and base of leaflet D flower E bark F lateral view of flower, note small cupulum at base of calyx G persistent calyces after fruit and seed shed H flower bud and 1 - foliolate leaf I fruiting branch. All photographs taken by CH Stirton. Voucher: Muasya, Chimphango, & Stirton 5927 (BOL)." httpUri="https://binary.pensoft.net/fig/10185" pageId="0" pageNumber="19">Plates 1</figureCitation>
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<figureCitation captionStart="Plate 2" captionStartId="F2" captionText="Plate 2. Habit and habitat of Psoralea karooensis C. H. Stirt., Muasya & Vlok A Mature plant B Young coppicing plant C typical dry gulley habitat. All photographs taken by CH Stirton. Vouchers: (A) Stirton, Muasya & Chimphango 13245 (BOL); (B-C) Muasya, Chimphango & Stirton 5927 (BOL)." httpUri="https://binary.pensoft.net/fig/10186" pageId="0" pageNumber="19">, 2</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="19" type="latin">
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<paragraph pageId="0" pageNumber="19">Latin.</paragraph>
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<paragraph pageId="0" pageNumber="19">
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Psoralea glaucescens
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<emphasis italics="true" pageId="0" pageNumber="19">affinis, sed habitu cernuo caulibus nudis rigidis multis, brachyblastis vernalis ab apice fasciculatis; foliis 1-foliolatis; brachyblastis floriferis vernalis ramosis erectis brevibus; floribus viridi-cremeis parvis cupulo trifido parvo apice pedunculi 10-12 mm longi vexilloque macula nectarifera purpurea singula, venis purpurescentibus differt</emphasis>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="19" type="type">
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<paragraph pageId="0" pageNumber="19">Type.</paragraph>
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<paragraph pageId="0" pageNumber="19">
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<emphasis bold="true" pageId="0" pageNumber="19">South Africa:</emphasis>
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Western Cape, Ladismith (3320), Witteberg Private Nature Reserve, Driedamhoek (-AD), at end of jeep track,
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<geoCoordinate degrees="33" direction="south" minutes="20" orientation="latitude" precision="1" seconds="11.7" value="-33.336582">33°20'11.7"S</geoCoordinate>
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,
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<geoCoordinate degrees="20" direction="east" minutes="31" orientation="longitude" precision="1" seconds="57.7" value="20.532694">20°31'57.7"E</geoCoordinate>
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, 20 February 2011, Muasya, Chimphango, & Stirton 5927 (holotype: BOL!; isotypes: BM!, GRA!, K!, MO!, NBG!, NH!, P!, PRE!).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="1" lastPageNumber="20" pageId="0" pageNumber="19" type="description">
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<paragraph pageId="0" pageNumber="19">Description.</paragraph>
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<paragraph lastPageId="1" lastPageNumber="20" pageId="0" pageNumber="19">
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<emphasis italics="true" pageId="0" pageNumber="19">Habit</emphasis>
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erect, willowy, flexuose branched shrub to 3 m tall, reseeder but coppices regularly once established.
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<emphasis italics="true" pageId="0" pageNumber="19">Stems</emphasis>
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1(2), brownish-grey with scattered white lenticels, weakly fissured, bare of leaves except on the seasonal shoots which arise in a characteristic burst-branching; shoots coppice seasonally on old stems, leafy along their entire length, glaucous green with a whitish bloom, glabrous, with small raised crateriform glands.
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<emphasis italics="true" pageId="0" pageNumber="19">Leaves</emphasis>
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1-foliolate, petiolate, stipulate, glandular, glabrous.
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<emphasis italics="true" pageId="0" pageNumber="19">Leaf size</emphasis>
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variable, being larger on water shoots from the rootstock (20-23 mm long, 2-3 mm wide), becoming smaller up the flowering shoots, dull glaucous green; apex rounded to acute; base cuneate; tip arching; petiole 1-2 mm long.
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<emphasis italics="true" pageId="0" pageNumber="19">Stipules</emphasis>
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1-2 mm long, fused at base, rigid, triangular, semi-patent, 1-veined, rapidly senescent on flowering shoots.
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<emphasis italics="true" pageId="0" pageNumber="19">Flowers</emphasis>
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10.0-12.5 mm long, greenish cream, borne in most axils of the upper half of the seasonal shoots, 1-3 per axil; pedicels 2 mm long.
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<emphasis italics="true" pageId="0" pageNumber="19">Peduncles</emphasis>
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10-12 mm long, purple-tinged, terminated by a small tri-toothed cupulum; cupulum teeth equal, broadly triangular, acute, green, <1.0mm long.
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<emphasis italics="true" pageId="0" pageNumber="19">Calyx</emphasis>
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5 mm long, pale green, sometimes flushed with purple, glabrous; teeth triangular, all 2 mm long, carinal tooth broadest, blunt, weakly ribbed, glandular; tube longer than the teeth, accrescent in fruit, persisting after fruits and seeds are shed.
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<emphasis italics="true" pageId="0" pageNumber="19">Standard</emphasis>
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broadly elliptic, 10 mm long, 10-12 mm wide; claw 2 mm long, almost tubular; cream, nectar flash purple rising from above the strongly developed auricles to the apex; inner face of the standard greenish, veins purple; apex emarginate but standard not fully reflexed.
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<emphasis italics="true" pageId="0" pageNumber="19">Wing petals</emphasis>
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10-11 mm long, 4 mm wide; claw 2.5 mm long; locked into keel fold but not fused, slightly longer than the keel, petal sculpturing present, upper basal, comprised of 4-5 transcostal parallel lamellae.
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<emphasis italics="true" pageId="0" pageNumber="19">Keel petals</emphasis>
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10 mm long, 3 mm wide; claw 5 mm long; apex deep purple.
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<emphasis italics="true" pageId="0" pageNumber="19">Androecium</emphasis>
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9 mm long; tenth stamen free; sheath split adaxially, fenestrate.
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<emphasis italics="true" pageId="0" pageNumber="19">Pistil</emphasis>
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9 mm long; ovary 1.5 mm long, sessile, glabrous, thickened before point of flexure, height of curvature 3 mm, erect, penicillate.
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<emphasis italics="true" pageId="0" pageNumber="19">Fruits</emphasis>
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ovate, indehiscent, wall scarious, 3.8-4.1 mm long and
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<pageBreakToken pageId="1" pageNumber="20" start="start">2.2</pageBreakToken>
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-2.5 mm wide at mid length.
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<emphasis italics="true" pageId="1" pageNumber="20">Seed</emphasis>
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3.5-4.0 mm long and 2.1-2.2 mm wide at mid length, dark olive green, smooth, aril present and light olive green.
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</paragraph>
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<caption httpUri="https://binary.pensoft.net/fig/10185" pageId="1" pageNumber="20" start="Plate 1" startId="F1">
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<paragraph pageId="1" pageNumber="20">
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<emphasis bold="true" pageId="1" pageNumber="20">Plate 1.</emphasis>
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<taxonomicName authorityName="C. H. Stirt., Muasya & Vlok" authorityYear="2012" class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Fabales" pageId="1" pageNumber="20" phylum="Angiospermae" rank="species" species="karooensis">
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<emphasis italics="true" pageId="1" pageNumber="20">Psoralea karooensis</emphasis>
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</taxonomicName>
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C.H. Stirt., Muasya & Vlok
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<emphasis bold="true" pageId="1" pageNumber="20">A</emphasis>
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overseasonal shoots
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<emphasis bold="true" pageId="1" pageNumber="20">B</emphasis>
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seasonal shoots
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<emphasis bold="true" pageId="1" pageNumber="20">C</emphasis>
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fused stipules and base of leaflet
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<emphasis bold="true" pageId="1" pageNumber="20">D</emphasis>
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flower
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<emphasis bold="true" pageId="1" pageNumber="20">E</emphasis>
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bark
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<emphasis bold="true" pageId="1" pageNumber="20">F</emphasis>
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lateral view of flower, note small cupulum at base of calyx
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<emphasis bold="true" pageId="1" pageNumber="20">G</emphasis>
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persistent calyces after fruit and seed shed
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<emphasis bold="true" pageId="1" pageNumber="20">H</emphasis>
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flower bud and 1-foliolate leaf
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<emphasis bold="true" pageId="1" pageNumber="20">I</emphasis>
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fruiting branch. All photographs taken by CH Stirton. Voucher: Muasya, Chimphango, & Stirton 5927 (BOL).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection lastPageId="2" lastPageNumber="21" pageId="1" pageNumber="20" type="distribution">
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<paragraph pageId="1" pageNumber="20">Distribution and ecology.</paragraph>
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<paragraph lastPageId="2" lastPageNumber="21" pageId="1" pageNumber="20">
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<taxonomicName authorityName="C. H. Stirt., Muasya & Vlok" authorityYear="2012" class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Fabales" pageId="1" pageNumber="20" phylum="Angiospermae" rank="species" species="karooensis">
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<emphasis italics="true" pageId="1" pageNumber="20">Psoralea karooensis</emphasis>
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</taxonomicName>
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grows in the Klein Karoo mountains, between 1000-1200 m. It is restricted to the Witteberg quartzite fynbos vegeta
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<pageBreakToken pageId="2" pageNumber="21" start="start">tion</pageBreakToken>
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, between the Witteberg and Anysberg Mountains, and occurs mainly in gulleys and along the banks of dry river beds (
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<figureCitation captionStart="Plate 2" captionStartId="F2" captionText="Plate 2. Habit and habitat of Psoralea karooensis C. H. Stirt., Muasya & Vlok A Mature plant B Young coppicing plant C typical dry gulley habitat. All photographs taken by CH Stirton. Vouchers: (A) Stirton, Muasya & Chimphango 13245 (BOL); (B-C) Muasya, Chimphango & Stirton 5927 (BOL)." httpUri="https://binary.pensoft.net/fig/10186" pageId="2" pageNumber="21">Plate 2</figureCitation>
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).
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</paragraph>
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<caption httpUri="https://binary.pensoft.net/fig/10186" pageId="2" pageNumber="21" start="Plate 2" startId="F2">
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<paragraph pageId="2" pageNumber="21">
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<emphasis bold="true" pageId="2" pageNumber="21">Plate 2.</emphasis>
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Habit and habitat of
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<taxonomicName authorityName="C. H. Stirt., Muasya & Vlok" authorityYear="2012" class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Fabales" pageId="2" pageNumber="21" phylum="Angiospermae" rank="species" species="karooensis">
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<emphasis italics="true" pageId="2" pageNumber="21">Psoralea karooensis</emphasis>
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</taxonomicName>
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C.H. Stirt., Muasya & Vlok
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<emphasis bold="true" pageId="2" pageNumber="21">A</emphasis>
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Mature plant
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<emphasis bold="true" pageId="2" pageNumber="21">B</emphasis>
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Young coppicing plant
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<emphasis bold="true" pageId="2" pageNumber="21">C</emphasis>
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typical dry gulley habitat. All photographs taken by CH Stirton. Vouchers: (
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<emphasis bold="true" pageId="2" pageNumber="21">A</emphasis>
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) Stirton, Muasya & Chimphango 13245 (BOL); (
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<emphasis bold="true" pageId="2" pageNumber="21">B-C</emphasis>
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) Muasya, Chimphango & Stirton 5927 (BOL).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="21" type="etymology">
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<paragraph pageId="2" pageNumber="21">Etymology.</paragraph>
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<paragraph pageId="2" pageNumber="21">The specific epithet alludes to its known restriction to the Klein Karoo.</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="21" type="conservation status">
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<paragraph pageId="2" pageNumber="21">Conservation status.</paragraph>
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<paragraph pageId="2" pageNumber="21">
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<taxonomicName authorityName="C. H. Stirt., Muasya & Vlok" authorityYear="2012" class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Fabales" pageId="2" pageNumber="21" phylum="Angiospermae" rank="species" species="karooensis">
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<emphasis italics="true" pageId="2" pageNumber="21">Psoralea karooensis</emphasis>
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</taxonomicName>
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is locally common within its range and much of its distribution occurs in protected nature reserves. However, the species is a habitat specialist (fresh water stream beds with intermittent flow) at above 1000 m and is only known from an area less than 500 km2. We therefore assess this species to be Rare under the South African Red list categories and criteria (EOO, AOO;
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<bibRefCitation author="Von Staden, L" editor="Raimondo, D" journalOrPublisher="South African National Biodiversity Institute, Pretoria" pageId="2" pageNumber="21" pagination="6 - 18" refId="B4" refString="Von Staden, L, Raimondo, D, Foden, W, 2009. Approach to Red List Assessments. In: Raimondo, D, Von Staden, L, Foden, W, Victor, JE, Helme, NA, Turner, RC, Kamundi, DA, Manyama, PA, Eds., Red List of South African Plants. South African National Biodiversity Institute, Pretoria: 6 - 18" title="Approach to Red List Assessments." volumeTitle="Red List of South African Plants." year="2009">Von Staden et al. 2009</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="21" type="other specimens examined">
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<paragraph pageId="2" pageNumber="21">Other specimens examined.</paragraph>
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<paragraph pageId="2" pageNumber="21">
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<emphasis bold="true" pageId="2" pageNumber="21">South Africa:</emphasis>
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Western Cape: Laingsburg district (3320 AD), Elandsfontein Farm, on dirt road off N1 - Laingsburg via Witteberg [
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<geoCoordinate degrees="33" direction="south" minutes="18" orientation="latitude" precision="1" seconds="38.41" value="-33.31067">33°18'38.41"S</geoCoordinate>
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,
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<geoCoordinate degrees="20" direction="east" minutes="26" orientation="longitude" precision="1" seconds="46.13" value="20.446146">20°26'46.13"E</geoCoordinate>
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], 20 Feb 2011,
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<emphasis italics="true" pageId="2" pageNumber="21">Stirton, Muasya & Chimphango 13245</emphasis>
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(BOL); Witteberg Kloof, 16 Jul 1923,
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<emphasis italics="true" pageId="2" pageNumber="21">Compton 2592</emphasis>
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(BOL). Witteberg, S. base of the range, 31 Jan 1961,
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<emphasis italics="true" pageId="2" pageNumber="21">Esterhuysen 28844</emphasis>
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(BOL, PRE).
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</paragraph>
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<paragraph pageId="2" pageNumber="21">
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Western Cape: Ladismith district (3320 AD), 9 Aug 1939,
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<emphasis italics="true" pageId="2" pageNumber="21">Levyns 6106</emphasis>
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(BOL).
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</paragraph>
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<paragraph pageId="2" pageNumber="21">
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Western Cape: Laingsburg district, at entrance to Perdekloof Gorge, S. of Matjiesfontein at northern base of Witteberg (3320 BC),
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<emphasis italics="true" pageId="2" pageNumber="21">Helme 2938</emphasis>
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(NBG).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="21" type="discussion">
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<paragraph pageId="2" pageNumber="21">Discussion.</paragraph>
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<paragraph pageId="2" pageNumber="21">
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<taxonomicName authorityName="C. H. Stirt., Muasya & Vlok" authorityYear="2012" class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Fabales" pageId="2" pageNumber="21" phylum="Angiospermae" rank="species" species="karooensis">
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<emphasis italics="true" pageId="2" pageNumber="21">Psoralea karooensis</emphasis>
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</taxonomicName>
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is characterised by its small (<13 mm long) greenish cream flowers with a small (<1.0 mm long) trifid cupulum at the apex of a 10-12 mm long peduncle, standard with single purple flash nectar patch and purplish veins, 1-foliolate leaves, erect multi-branching short seasonal flowering shoots, and flexuose habit of many stiff bare stems with the seasonal shoots arising apically in clusters. It is most similar to
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<taxonomicName class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Rosales" pageId="2" pageNumber="21" phylum="Angiospermae" rank="species" species="glaucescens">
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<emphasis italics="true" pageId="2" pageNumber="21">Psoralea glaucescens</emphasis>
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</taxonomicName>
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Eckl. & Zeyh., a widespread but rare species found in the northwestern Cape. The resprouter
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<taxonomicName class="Dicotyledoneae" family="Fabaceae" genus="Psoralea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Rosales" pageId="2" pageNumber="21" phylum="Angiospermae" rank="species" species="glaucescens">
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<emphasis italics="true" pageId="2" pageNumber="21">Psoralea glaucescens</emphasis>
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</taxonomicName>
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differs in its densely branched mounded habit, grey puckered stems, 3-5-foliolate irregularly sized leaves, greenish yellow flowers, with violet veining and nectar flash, borne 1-5 per axil, and purplish calyces.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |