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<document id="33CD5B94F36CDAF1653B2AF431CFD999" ID-DOI="10.11646/phytotaxa.244.2.3" ID-ISSN="1179-3163" ID-Zenodo-Dep="13678842" 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.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1725411675309" checkinUser="felipe" docAuthor="Steyn, Hester M. &amp; Van Wyk, Abraham E." docDate="2016" docId="FC530A4C25553E0DFF01A097CFADF9FF" docLanguage="en" docName="phytotaxa.244.2.3.pdf" docOrigin="Phytotaxa 244 (2)" docSource="http://dx.doi.org/10.11646/phytotaxa.244.2.3" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Acanthopsis erosa H. M. Steyn 2016, sp. nov." docType="treatment" docVersion="2" lastPageNumber="155" masterDocId="006A7234255F3E07FF89A037CF7CFFEE" masterDocTitle="Taxonomic notes on the shrublet species of Acanthopsis (Acanthaceae, tribe Acantheae), with two new species from South Africa" masterLastPageNumber="160" masterPageNumber="145" pageNumber="155" updateTime="1725431260659" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="B9D42ECE59662997C5EAE6AAE62B9D0D">Taxonomic notes on the shrublet species of Acanthopsis (Acanthaceae, tribe Acantheae), with two new species from South Africa</mods:title>
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<mods:name id="3762044ACB7D5E937271C828B5DCA0B2" type="personal">
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<mods:namePart id="FFFB864709EC917FFBE6724614516180">Steyn, Hester M.</mods:namePart>
<mods:affiliation id="40B83E4A60659282DE2307055C3B07E0">National Herbarium, South African National Biodiversity Institute, Private Bag X 101, Pretoria 0001, South Africa. &amp; H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria 0002, South Africa.</mods:affiliation>
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</mods:role>
<mods:namePart id="7ABB8BB20FE8992E14095BC73FB00FC8">Van Wyk, Abraham E.</mods:namePart>
<mods:affiliation id="58B055D6A9293E71FFB1F4F56462DC18">H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria 0002, South Africa.</mods:affiliation>
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<mods:title id="3A270DC4CCF33404073BCC034B6263A0">Phytotaxa</mods:title>
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<mods:part id="E117440690A7EE1E363ADB5B666215F0">
<mods:date id="CD73143F75438276701D6EB527CA51B0">2016</mods:date>
<mods:detail id="D8AC4BDE97E8F1F03F290C933B74C739" type="pubDate">
<mods:number id="A73FE09D182A3045B953D535DB41EA98">2016-01-18</mods:number>
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<mods:number id="7B796F03A0105A4D7F41525DA0B6B152">244</mods:number>
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<mods:number id="9F678385FB09E267952D2C42DD034AA2">2</mods:number>
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<mods:url id="62D79112890195AF6346613AFD1D4B88">http://dx.doi.org/10.11646/phytotaxa.244.2.3</mods:url>
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<mods:classification id="B4003E683BEF389FACE891E8713DE482">journal article</mods:classification>
<mods:identifier id="5E070CB33FADB3FA95C02D29C0D151FF" type="DOI">10.11646/phytotaxa.244.2.3</mods:identifier>
<mods:identifier id="C32361716C127711BE2E648AA660AE83" type="ISSN">1179-3163</mods:identifier>
<mods:identifier id="77E8AC40B56D5E985E3AC7B7632D213E" type="Zenodo-Dep">13678842</mods:identifier>
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<treatment id="FC530A4C25553E0DFF01A097CFADF9FF" ID-DOI="http://doi.org/10.5281/zenodo.13678816" ID-Zenodo-Dep="13678816" LSID="urn:lsid:plazi:treatment:FC530A4C25553E0DFF01A097CFADF9FF" httpUri="http://treatment.plazi.org/id/FC530A4C25553E0DFF01A097CFADF9FF" lastPageNumber="155" pageId="10" pageNumber="155">
<subSubSection id="3CE0E8D125553E0DFF01A097CC17FF57" box="[136,875,158,185]" pageId="10" pageNumber="155" type="nomenclature">
<paragraph id="7445BB5A25553E0DFF01A097CC17FF57" blockId="10.[136,875,158,185]" box="[136,875,158,185]" pageId="10" pageNumber="155">
<heading id="2F0D0C3625553E0DFF01A097CC17FF57" box="[136,875,158,185]" fontSize="11" level="2" pageId="10" pageNumber="155" reason="4">
<emphasis id="468E674825553E0DFF01A097CFE1FF57" bold="true" box="[136,157,160,185]" pageId="10" pageNumber="155">3.</emphasis>
<taxonomicName id="B3FAC0D925553E0DFF2DA0A9CE87FF57" ID-CoL="8ZL7" authority="H.M.Steyn" authorityName="H. M. Steyn" authorityYear="2016" box="[164,507,158,185]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="species" species="erosa" status="sp. nov.">
<emphasis id="468E674825553E0DFF2DA0A9CE0BFF57" bold="true" box="[164,375,158,185]" italics="true" pageId="10" pageNumber="155">Acanthopsis erosa</emphasis>
H.M.Steyn
</taxonomicName>
,
<emphasis id="468E674825553E0DFD8EA097CD20FF57" box="[519,604,160,185]" italics="true" pageId="10" pageNumber="155">
<taxonomicNameLabel id="5DBDDA3325553E0DFD8EA097CD20FF57" box="[519,604,160,185]" pageId="10" pageNumber="155" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="ECC1A7DF25553E0DFDE3A097CDC4FF57" box="[618,696,160,185]" captionStart="FIGURE 1" captionStartId="2.[136,229,1337,1358]" captionTargetBox="[218,1378,207,1283]" captionTargetId="figure-15@2.[189,1401,187,1312]" captionTargetPageId="2" captionText="FIGURE 1. Known distribution of the shrublet species of Acanthopsis: A. spathularis (○), A. horrida (●), A. erosa (■) and A. dregeana (▲)." figureDoi="http://doi.org/10.5281/zenodo.13678846" httpUri="https://zenodo.org/record/13678846/files/figure.png" pageId="10" pageNumber="155">Figs. 1</figureCitation>
,
<figureCitation id="ECC1A7DF25553E0DFD4FA097CD94FF57" box="[710,744,160,185]" captionStart="FIGURE 3" captionStartId="4.[136,229,1788,1809]" captionTargetBox="[151,1436,389,1763]" captionTargetId="figure-124@4.[151,1436,389,1763]" captionTargetPageId="4" captionText="FIGURE 3. Comparison of floral parts in shrublet species of Acanthopsis (from left to right): bract(s), bracteoles, calyx (4 sepals: dorsal, ventral and 2 lateral ones) and flower. A. A. spathularis, B. A. horrida, C. A. erosa, D. A. dregeana. Note: the bract on the left is from lower down in the same inflorescence. Scale bar = 10 mm. Vouchers:A = Steyn 2135 (PRE), B = Koekemoer 4397 (PRE), C = Steyn 1874 (PRE), D = Steyn 1822 (PRE)." figureDoi="http://doi.org/10.5281/zenodo.13678854" httpUri="https://zenodo.org/record/13678854/files/figure.png" pageId="10" pageNumber="155">3C</figureCitation>
,
<figureCitation id="ECC1A7DF25553E0DFD7DA097CC7EFF57" box="[756,770,160,185]" captionStart="FIGURE 5" captionStartId="9.[136,229,2030,2051]" captionTargetBox="[244,1343,331,2005]" captionTargetId="figure-72@9.[244,1343,317,2005]" captionTargetPageId="9" captionText="FIGURE 5. Scanned image of holotype of Acanthopsis erosa H.M.Steyn (Steyn 1874, PRE)." figureDoi="http://doi.org/10.5281/zenodo.13678862" httpUri="https://zenodo.org/record/13678862/files/figure.png" pageId="10" pageNumber="155">5</figureCitation>
&amp;
<figureCitation id="ECC1A7DF25553E0DFCAFA097CC1EFF57" box="[806,866,160,185]" captionStart="FIGURE 7" captionStartId="12.[136,229,2000,2021]" captionTargetBox="[151,1436,190,1975]" captionTargetId="figure-15@12.[151,1436,190,1975]" captionTargetPageId="12" captionText="FIGURE 7. Habit and flowers of A, A. spathularis, B. A. horrida, C. A. erosa, D. A. dregeana. Photographs: H.M. Steyn (A, a, B), M. Koekemoer (b, C, d), S.P. Bester (c, D)." figureDoi="http://doi.org/10.5281/zenodo.13678868" httpUri="https://zenodo.org/record/13678868/files/figure.png" pageId="10" pageNumber="155">7C, c</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection id="3CE0E8D125553E0DFF01A0DDCE8EFE85" pageId="10" pageNumber="155" type="description">
<paragraph id="7445BB5A25553E0DFF01A0DDCE8EFE85" blockId="10.[136,1452,234,435]" pageId="10" pageNumber="155">
<emphasis id="468E674825553E0DFF01A0DDCE8EFE85" italics="true" pageId="10" pageNumber="155">
<taxonomicName id="B3FAC0D925553E0DFF01A0DDCE00FF11" box="[136,380,234,255]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="subSpecies" species="erosa" subSpecies="differs">Acanthopsis erosa differs</taxonomicName>
from
<taxonomicName id="B3FAC0D925553E0DFE3FA0DDCD57FF11" authorityName="H. M. Steyn" authorityYear="2016" box="[438,555,234,255]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="species" species="dregeana">A. dregeana</taxonomicName>
in having middle to upper floral bracts ending in 5 drawn-out primary spines (vs. ending in 3 ovate, mucronate to spinose lobes) and the corolla throat being white (vs. lemon-yellow) and from all other shrublet members of
<taxonomicName id="B3FAC0D925553E0DFF34A105CE4EFEA9" authorityName=", Clarke" authorityYear="1901" box="[189,306,306,327]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="genus">Acanthopsis</taxonomicName>
in having dentate-spinose to erose leaf margins (vs. coarsely dentate-spinose) and inflorescences 50–80(–100) mm long (vs. (14–)20–60(–70) mm long).
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="3CE0E8D125553E0DFF01A14DCBAEFBD3" pageId="10" pageNumber="155" type="materials_examined">
<paragraph id="7445BB5A25553E0DFF01A14DCD32FE5D" blockId="10.[136,1452,234,435]" pageId="10" pageNumber="155">
<emphasis id="468E674825553E0DFF01A14DCFBEFE61" bold="true" box="[136,194,378,399]" pageId="10" pageNumber="155">Type:</emphasis>
—
<materialsCitation id="C492B10725553E0DFF52A14DCD36FE5D" collectingDate="2011-08-20" collectionCode="KMG" country="South Africa" location="Steyn" municipality="Calvinia District" pageId="10" pageNumber="155" specimenCode="PRE0861469" specimenCount="2" stateProvince="Northern Cape" typeStatus="holotype">
<collectingCountry id="0CEDFBCA25553E0DFF52A14DCEF3FE61" box="[219,399,378,399]" name="South Africa" pageId="10" pageNumber="155">SOUTH AFRICA</collectingCountry>
.
<collectingRegion id="B63E75B825553E0DFE14A14DCD48FE61" box="[413,564,378,399]" country="South Africa" name="Northern Cape" pageId="10" pageNumber="155">Northern Cape</collectingRegion>
:
<collectingMunicipality id="9421212025553E0DFDCBA14DCD95FE61" box="[578,745,378,399]" pageId="10" pageNumber="155">Calvinia District</collectingMunicipality>
,
<locationDeviation id="65F7A27825553E0DFD7EA14DCB74FE61" box="[759,1032,378,399]" location="Kaggakammaskloof" pageId="10" pageNumber="155">SW of Kaggakammaskloof</locationDeviation>
, (3219DA),
<date id="00449D9A25553E0DFB03A14DCA51FE61" box="[1162,1325,378,399]" pageId="10" pageNumber="155" value="2011-08-20">
<collectingDate id="1000647225553E0DFB03A14DCA51FE61" box="[1162,1325,378,399]" pageId="10" pageNumber="155" value="2011-08-20">20 August 2011</collectingDate>
</date>
,
<emphasis id="468E674825553E0DFAB5A14DCAD7FE61" box="[1340,1451,378,399]" italics="true" pageId="10" pageNumber="155">
<location id="7125ED8125553E0DFAB5A14DCA0CFE61" LSID="urn:lsid:plazi:treatment:FC530A4C25553E0DFF01A097CFADF9FF:7125ED8125553E0DFAB5A14DCA0CFE61" box="[1340,1392,378,399]" country="South Africa" municipality="Calvinia District" name="Steyn" pageId="10" pageNumber="155" stateProvince="Northern Cape">Steyn</location>
1874
</emphasis>
(
<typeStatus id="AB4105F825553E0DFF4DA1A9CE66FE5D" box="[196,282,414,435]" pageId="10" pageNumber="155" type="holotype">holotype</typeStatus>
<specimenCode id="245C132125553E0DFE96A1A9CED4FE5D" box="[287,424,414,435]" collectionCode="PRE" country="South Africa" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15547" lsid="urn:lsid:biocol.org:col:15547" name="South African National Biodiversity Institute (SANBI)" pageId="10" pageNumber="155" type="Herbarium">PRE0861469</specimenCode>
!;
<typeStatus id="AB4105F825553E0DFE3DA1A9CE85FE5D" box="[436,505,414,435]" pageId="10" pageNumber="155" type="isotype">isotype</typeStatus>
<collectionCode id="12EB239F25553E0DFE76A1A9CD3CFE5D" box="[511,576,414,435]" country="South Africa" lsid="urn:lsid:biocol.org:col:13561" name="McGregor Museum" pageId="10" pageNumber="155" type="Herbarium">KMG</collectionCode>
!)
</materialsCitation>
.
</paragraph>
<paragraph id="7445BB5A25553E0DFF01A1D3CBAEFBD3" blockId="10.[136,1452,484,1553]" pageId="10" pageNumber="155">
Perennial shrublet,
<quantity id="B30216BF25553E0DFEEAA1D3CEAFFE13" box="[355,467,484,509]" metricMagnitude="-1" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="10" pageNumber="155" unit="cm" value="25.0" valueMax="30.0" valueMin="20.0">20–30 cm</quantity>
tall. Stems brown, ribbed, pubescent with white, spreading hairs; internodes
<quantity id="B30216BF25553E0DFAC9A1D3CAD0FE13" box="[1344,1452,484,509]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" metricValueMax="10.0" metricValueMin="8.0" pageId="10" pageNumber="155" unit="mm" value="9.0" valueMax="10.0" valueMin="8.0">8–10 mm</quantity>
long. Leaves lanceolate, 40–45(–55) ×
<quantity id="B30216BF25553E0DFDC9A23FCDE3FDCF" box="[576,671,520,545]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" metricValueMax="6.0" metricValueMin="4.0" pageId="10" pageNumber="155" unit="mm" value="5.0" valueMax="6.0" valueMin="4.0">4–6 mm</quantity>
, appear glaucous, strigose with densely packed, short hairs, also with scattered subsessile glandular hairs; margin undulate, dentate-spinose to erose, spines fine
<quantity id="B30216BF25553E0DFBF5A21BCBA5FDAB" box="[1148,1241,556,581]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="10" pageNumber="155" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1–2 mm</quantity>
long, yellow; base attenuate, decurrent. Inflorescences cylindrical, subsessile to pedunculate with 2 (or 3) pairs of peduncular bracts; 50– 80(–100) mm long (excluding peduncle),
<quantity id="B30216BF25553E0DFDEAA243CDB3FD63" box="[611,719,628,653]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" metricValueMax="10.0" metricValueMin="8.0" pageId="10" pageNumber="155" unit="mm" value="9.0" valueMax="10.0" valueMin="8.0">8–10 mm</quantity>
in diameter, peduncle (5–)10–15(–20) mm long, pubescent with short, spreading hairs. Bracts wedge-shaped,
<quantity id="B30216BF25553E0DFD0CA2AFCD83FD5F" box="[645,767,664,689]" metricMagnitude="-2" metricUnit="m" metricValue="1.75" metricValueMax="2.0" metricValueMin="1.5" pageId="10" pageNumber="155" unit="mm" value="17.5" valueMax="20.0" valueMin="15.0">15–20 mm</quantity>
long, base
<quantity id="B30216BF25553E0DFCF6A2AFCCA1FD5F" box="[895,989,664,689]" metricMagnitude="-3" metricUnit="m" metricValue="5.5" metricValueMax="7.0" metricValueMin="4.0" pageId="10" pageNumber="155" unit="mm" value="5.5" valueMax="7.0" valueMin="4.0">4–7 mm</quantity>
long; ending in 5 primary spines, central primary spine usually simple, occasionally with 1 (or 2) pairs of marginal secondary spines, lateral spines usually with 1 long, basal secondary spine (usually as long or longer than primary spines) and 1 short, marginal secondary spine; hirsute to velvety with deflexed to spreading short hairs, occasionally also with subsessile glandular hairs. Bracteoles linear,
<quantity id="B30216BF25553E0DFF5DA31FCE4CFCAF" box="[212,304,808,833]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" metricValueMax="9.0" metricValueMin="7.0" pageId="10" pageNumber="155" unit="mm" value="8.0" valueMax="9.0" valueMin="7.0">7–9 mm</quantity>
long, silky hairy. Calyx with dorsal sepal ovate, attenuate,
<quantity id="B30216BF25553E0DFC35A31FCB76FCAF" box="[956,1034,808,833]" metricMagnitude="-2" metricUnit="m" metricValue="1.3" pageId="10" pageNumber="155" unit="mm" value="13.0">13 mm</quantity>
long, silky hairy especially adaxially, often short, spreading hairs abaxially, 7–9-veined from base; ventral sepal ovate,
<quantity id="B30216BF25553E0DFB8FA37BCB01FC8B" box="[1030,1149,844,869]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" metricValueMax="1.2" metricValueMin="1.0" pageId="10" pageNumber="155" unit="mm" value="11.0" valueMax="12.0" valueMin="10.0">10–12 mm</quantity>
long, silky hairy especially adaxially, often with short, spreading hairs abaxially, 5–7-veined from base; lateral sepals lanceolate, ending in spinous tip, broader at base,
<quantity id="B30216BF25553E0DFEFBA3A3CEC9FC43" box="[370,437,916,941]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" pageId="10" pageNumber="155" unit="mm" value="9.0">9 mm</quantity>
long, silky hairy especially along margins. Flowers lilac to purple with darker veins and white throat; corolla 28 ×
<quantity id="B30216BF25553E0DFE3AA38FCD7AFC3F" box="[435,518,952,977]" metricMagnitude="-2" metricUnit="m" metricValue="1.2" pageId="10" pageNumber="155" unit="mm" value="12.0">12 mm</quantity>
, tube
<quantity id="B30216BF25553E0DFDC2A38FCDC4FC3F" box="[587,696,952,977]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" metricValueMax="10.0" metricValueMin="8.0" pageId="10" pageNumber="155" unit="mm" value="9.0" valueMax="10.0" valueMin="8.0">8–10 mm</quantity>
long, pubescent; corolla limb recurved, central lobe usually wider than long, constricted at base, truncate to emarginate. Stamens with purple-black anthers,
<quantity id="B30216BF25553E0DFBF1A3EBCBC5FC1B" box="[1144,1209,988,1013]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="10" pageNumber="155" unit="mm" value="2.0">2 mm</quantity>
long; filaments 7(–8) mm long, glandular, hairy towards the base. Style with patch of glandular hairs at base. Capsules ovate, flattened, glabrous, shiny, 7 ×
<quantity id="B30216BF25553E0DFEE2A413CED2FBD3" box="[363,430,1060,1085]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="10" pageNumber="155" unit="mm" value="4.0">4 mm</quantity>
, 2-seeded. Seeds 4 ×
<quantity id="B30216BF25553E0DFD16A413CD9EFBD3" box="[671,738,1060,1085]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="10" pageNumber="155" unit="mm" value="4.0">4 mm</quantity>
, covered with long white hygroscopic hairs.
</paragraph>
</subSubSection>
<subSubSection id="3CE0E8D125553E0DFF34A47FCD7AFB6B" pageId="10" pageNumber="155" type="etymology">
<paragraph id="7445BB5A25553E0DFF34A47FCD7AFB6B" blockId="10.[136,1452,484,1553]" pageId="10" pageNumber="155">
<emphasis id="468E674825553E0DFF34A47FCE34FB8F" bold="true" box="[189,328,1096,1121]" pageId="10" pageNumber="155">Etymology:</emphasis>
—The specific epithet,
<taxonomicName id="B3FAC0D925553E0DFDC3A47FCDFBFB8F" box="[586,647,1096,1121]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="species" species="erosa">
<emphasis id="468E674825553E0DFDC3A47FCDFBFB8F" box="[586,647,1096,1121]" italics="true" pageId="10" pageNumber="155">erosa</emphasis>
</taxonomicName>
(the Latin meaning “irregularly toothed, appearing as if nibbled”), refers to the leaf margins of this species.
</paragraph>
</subSubSection>
<subSubSection id="3CE0E8D125553E0DFF34A4A7CFADF9FF" pageId="10" pageNumber="155" type="distribution">
<paragraph id="7445BB5A25553E0DFF34A4A7CB88FAB3" blockId="10.[136,1452,484,1553]" pageId="10" pageNumber="155">
<emphasis id="468E674825553E0DFF34A4A7CD01FB47" bold="true" box="[189,637,1168,1193]" pageId="10" pageNumber="155">Distribution, ecology and phenology:</emphasis>
—
<taxonomicName id="B3FAC0D925553E0DFD10A4A7CC15FB47" box="[665,873,1168,1193]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="species" species="erosa">
<emphasis id="468E674825553E0DFD10A4A7CC15FB47" box="[665,873,1168,1193]" italics="true" pageId="10" pageNumber="155">Acanthopsis erosa</emphasis>
</taxonomicName>
is endemic to
<collectingCountry id="0CEDFBCA25553E0DFB9EA4A7CBD7FB47" box="[1047,1195,1168,1193]" name="South Africa" pageId="10" pageNumber="155">South Africa</collectingCountry>
, only known from the
<typeStatus id="AB4105F825553E0DFF01A483CFC4FB23" box="[136,184,1204,1229]" pageId="10" pageNumber="155">type</typeStatus>
locality near the border of the Northern and
<collectingRegion id="B63E75B825553E0DFD42A483CC17FB23" box="[715,875,1204,1229]" country="South Africa" name="Western Cape" pageId="10" pageNumber="155">Western Cape</collectingRegion>
(
<figureCitation id="ECC1A7DF25553E0DFCF4A483CCBDFB23" box="[893,961,1204,1229]" captionStart="FIGURE 1" captionStartId="2.[136,229,1337,1358]" captionTargetBox="[218,1378,207,1283]" captionTargetId="figure-15@2.[189,1401,187,1312]" captionTargetPageId="2" captionText="FIGURE 1. Known distribution of the shrublet species of Acanthopsis: A. spathularis (○), A. horrida (●), A. erosa (■) and A. dregeana (▲)." figureDoi="http://doi.org/10.5281/zenodo.13678846" httpUri="https://zenodo.org/record/13678846/files/figure.png" pageId="10" pageNumber="155">Fig. 1</figureCitation>
). The distribution of
<taxonomicName id="B3FAC0D925553E0DFB36A483CA63FB23" box="[1215,1311,1204,1229]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="species" species="erosa">
<emphasis id="468E674825553E0DFB36A483CA63FB23" box="[1215,1311,1204,1229]" italics="true" pageId="10" pageNumber="155">A. erosa</emphasis>
</taxonomicName>
falls within the Swartruggens Quartzite Karoo (SKv2) vegetation
<typeStatus id="AB4105F825553E0DFD7FA4EFCC5AFB1F" box="[758,806,1240,1265]" pageId="10" pageNumber="155">type</typeStatus>
in the Rainshadow Valley Karoo Bioregion (
<bibRefCitation id="106BC6AB25553E0DFABDA4EFCE3BFAFB" author="Mucina, L. &amp; Rutherford, M. C." pageId="10" pageNumber="155" refId="ref9754" refString="Mucina, L. &amp; Rutherford, M. C. (Eds.) (2006) The vegetation of South Africa, Lesotho and Swaziland. Strelitzia 19. South African National Biodiversity Institute, Pretoria, 807 pp." type="book" year="2006">Mucina &amp; Rutherford 2006</bibRefCitation>
), within the Succulent Karoo Biome (
<bibRefCitation id="106BC6AB25553E0DFD7AA4CBCB49FAFB" author="Rutherford, M. C. &amp; Westfall, R. H." box="[755,1077,1276,1301]" pageId="10" pageNumber="155" refId="ref9874" refString="Rutherford, M. C. &amp; Westfall, R. H. (1994) Biomes of southern Africa: an objective categorization. Memoir 63. National Botanical Institute, Pretoria, 94 pp." type="book" year="1994">Rutherford &amp; Westfall 1994</bibRefCitation>
,
<bibRefCitation id="106BC6AB25553E0DFBC8A4CBCA50FAFB" author="Low, A. B. &amp; Rebelo, A. G." box="[1089,1324,1276,1301]" pageId="10" pageNumber="155" refId="ref9645" refString="Low, A. B. &amp; Rebelo, A. G. (Eds.) (1996) Vegetation of South Africa, Lesotho and Swaziland. Department of Environmental Affairs &amp; Tourism, Pretoria, 85 pp." type="book" year="1996">Low &amp; Rebelo 1996</bibRefCitation>
,
<bibRefCitation id="106BC6AB25553E0DFAB1A4CBCE3BFAD7" author="Mucina, L. &amp; Rutherford, M. C." pageId="10" pageNumber="155" refId="ref9754" refString="Mucina, L. &amp; Rutherford, M. C. (Eds.) (2006) The vegetation of South Africa, Lesotho and Swaziland. Strelitzia 19. South African National Biodiversity Institute, Pretoria, 807 pp." type="book" year="2006">Mucina &amp; Rutherford 2006</bibRefCitation>
). This species is found at an elevation of
<quantity id="B30216BF25553E0DFC9AA517CC26FAD7" box="[787,858,1312,1337]" metricMagnitude="2" metricUnit="m" metricValue="5.0" pageId="10" pageNumber="155" unit="m" value="500.0">500 m</quantity>
and is associated with deep sandy soils and grows in an area receiving a mean annual rainfall (mainly in winter) of
<quantity id="B30216BF25553E0DFCC9A573CCA4FAB3" box="[832,984,1348,1373]" metricMagnitude="-1" metricUnit="m" metricValue="1.25" metricValueMax="1.5" metricValueMin="1.0" pageId="10" pageNumber="155" unit="mm" value="125.0" valueMax="150.0" valueMin="100.0">100–150 mm</quantity>
. Flowering time: August.
</paragraph>
<paragraph id="7445BB5A25553E0DFF34A55FCFADF9FF" blockId="10.[136,1452,484,1553]" pageId="10" pageNumber="155">
<emphasis id="468E674825553E0DFF34A55FCEC5FA6F" bold="true" box="[189,441,1384,1409]" pageId="10" pageNumber="155">Conservation status:</emphasis>
—
<taxonomicName id="B3FAC0D925553E0DFE5CA55FCDDAFA6F" box="[469,678,1384,1409]" class="Magnoliopsida" family="Acanthaceae" genus="Acanthopsis" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="155" phylum="Tracheophyta" rank="species" species="erosa">
<emphasis id="468E674825553E0DFE5CA55FCDDAFA6F" box="[469,678,1384,1409]" italics="true" pageId="10" pageNumber="155">Acanthopsis erosa</emphasis>
</taxonomicName>
is currently only known from the
<typeStatus id="AB4105F825553E0DFBCEA55FCB0BFA6F" box="[1095,1143,1384,1409]" pageId="10" pageNumber="155">type</typeStatus>
locality and is possibly a Swartruggens Quartzite Karoo endemic with a limited distribution range. However, this area is botanically underexplored and more populations can be expected in suitable habitats. As the population is currently not exposed to any potential threat, a preliminary status of Rare (
<bibRefCitation id="106BC6AB25553E0DFDA1A5E3CC59FA03" author="Raimondo, D. &amp; Von Staden, L. &amp; Foden, W. &amp; Victor, J. E. &amp; Helme, N. A. &amp; Turner, R. C. &amp; Kamundi, D. A. &amp; Manyama, P. A." box="[552,805,1492,1517]" pageId="10" pageNumber="155" refId="ref9796" refString="Raimondo, D., Von Staden, L., Foden, W., Victor, J. E., Helme, N. A., Turner, R. C., Kamundi, D. A. &amp; Manyama, P. A. (Eds.) (2009) Red List of South African plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria, 668 pp." type="book" year="2009">
Raimondo
<emphasis id="468E674825553E0DFD21A5E3CDA7FA03" box="[680,731,1492,1517]" italics="true" pageId="10" pageNumber="155">et al</emphasis>
. 2009
</bibRefCitation>
) is assigned to this species (L. von Staden, pers. comm. 2015).
</paragraph>
</subSubSection>
</treatment>
</document>
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