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<document id="B313ACB5DC9DCF4B71F38A3F64AB0274" ID-CLB-Dataset="303950" ID-DOI="10.11646/phytotaxa.441.2.6" ID-GBIF-Dataset="c0e268e7-9b0c-4b44-8bb8-49abc9ec743c" ID-ISSN="1179-3163" ID-Zenodo-Dep="13872670" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1727812871314" checkinUser="felipe" docAuthor="Bruyns, Peter V., Klak, Cornelia, Mazuch, Tomáš, Gelle, Faysal Jama, Elmi, Hassan Sh Abdirahman &amp; Hanáček, Pavel" docDate="2020" docId="03C1501A9D1C284CFF25FEECFAD7FE8D" docLanguage="en" docName="phytotaxa.441.2.6.pdf" docOrigin="Phytotaxa 441 (2)" docSource="http://dx.doi.org/10.11646/phytotaxa.441.2.6" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Ceropegia marronina Bruyns &amp; Hanacek 2020, spec. nov." docType="treatment" docVersion="2" lastPageNumber="199" masterDocId="FFF828629D1F2848FFADFF9AFF9BFFC4" masterDocTitle="New species of Ceropegia (Apocynaceae) from the Horn of Africa" masterLastPageNumber="202" masterPageNumber="195" pageNumber="198" updateTime="1727814525772" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="A1AA5A97C8E30FC0CDE7DBC893125E67">New species of Ceropegia (Apocynaceae) from the Horn of Africa</mods:title>
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<mods:namePart id="F50C90B7F120F2021C276DED025EFACD">Bruyns, Peter V.</mods:namePart>
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<mods:namePart id="F6C6036B4DC5CA5F3697FB13DE002D17">Klak, Cornelia</mods:namePart>
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<mods:namePart id="28A0F916EB39C4563716C5F07BA09101">Mazuch, Tomáš</mods:namePart>
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<mods:affiliation id="8A6507AA1135D15F59D1E480D006A5BF">Dřiteč 65, 53305, Czechia</mods:affiliation>
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<mods:namePart id="ADE0A103E2438237ADA4EDAD9901BC9F">Gelle, Faysal Jama</mods:namePart>
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<mods:affiliation id="6D0EE28F82F6EB3DEB2899B52893ACFA">Biodiversity Museum, University of Hargeisa, Hargeisa, Somaliland</mods:affiliation>
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<mods:namePart id="B505D89600386A8832F00703800C3763">Elmi, Hassan Sh Abdirahman</mods:namePart>
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<mods:affiliation id="217AADB885A939D4FF01BE7659B03DDE">Amoud University, Borama, Somaliland</mods:affiliation>
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<mods:namePart id="1434FABDD1DBB816D3A65A3A47627EF6">Hanáček, Pavel</mods:namePart>
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<mods:affiliation id="800692452481CD15D3DD9629C9501E8A">Department of Plant Biology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czechia</mods:affiliation>
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<taxonomicName id="4C689A8F9D1C284BFF25FEECFDC4FE54" ID-CoL="7TMNC" authority="Bruyns &amp; Hanacek" authorityName="Bruyns &amp; Hanacek" authorityYear="2020" box="[136,607,374,401]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="marronina" status="sp. nov.">
<emphasis id="B91C3D1E9D1C284BFF25FEECFE1AFE54" bold="true" box="[136,385,374,400]" italics="true" pageId="3" pageNumber="198">Ceropegia marronina</emphasis>
Bruyns &amp; Hanáček
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,
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<emphasis id="B91C3D1E9D1C284BFDC0FEEDFD4EFE54" box="[621,725,375,400]" italics="true" pageId="3" pageNumber="198">spec. nov</emphasis>
.
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<emphasis id="B91C3D1E9D1C284BFF25FE58FF21FE13" bold="true" box="[136,186,450,471]" pageId="3" pageNumber="198">Type</emphasis>
:—
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.
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,
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east of Agula,
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,
<date id="FFD6C7CC9D1C284BFCA1FE58FCEAFE13" box="[780,881,450,471]" pageId="3" pageNumber="198" value="2017-11">Nov. 2017</date>
,
<emphasis id="B91C3D1E9D1C284BFCD6FE58FB9AFE13" box="[891,1025,450,471]" italics="true" pageId="3" pageNumber="198">Bruyns 13247</emphasis>
(
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BOL!,
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!).
<figureCitation id="1353FD899D1C284BFAEEFE58FAE4FE13" box="[1347,1407,450,472]" captionStart="FIGURE 1" captionStartId="2.[136,229,1343,1365]" captionTargetBox="[165,1424,469,1302]" captionTargetId="figure-171@2.[151,1436,458,1315]" captionTargetPageId="2" captionText="FIGURE 1. A, B, Ceropegia buraoensis. A, branch with flower. The rearward-pointing bases of the leaf-rudiments can clearly be seen here. B, branch showing rear of corolla. C, Ceropegia marronina, Bruyns 13247 (BOL), D, Ceropegia pseudorhynchantha, Bruyns 11584 (BOL, E. MO). Photographs by:A, B, T. Masuch. C, D, P.V. Bruyns." figureDoi="http://doi.org/10.5281/zenodo.13872672" httpUri="https://zenodo.org/record/13872672/files/figure.png" pageId="3" pageNumber="198">Figs 1</figureCitation>
,
<figureCitation id="1353FD899D1C284BFA26FE58FA02FE13" box="[1419,1433,450,471]" captionStart="FIGURE 3" captionStartId="4.[136,229,1168,1190]" captionTargetBox="[167,1424,359,1134]" captionTargetId="figure-120@4.[151,1436,353,1143]" captionTargetPageId="4" captionText="FIGURE 3. Ceropegia marronina. A, branch (scale 4 mm). B, side view of dissected corolla (scale 3 mm). C, face view of gynostegium (scale 2 mm). D, pollinarium (scale 0.25 mm). Drawn from Bruyns 13247 (BOL, ETH) by P.V. Bruyns." figureDoi="http://doi.org/10.5281/zenodo.13872676" httpUri="https://zenodo.org/record/13872676/files/figure.png" pageId="3" pageNumber="198">3</figureCitation>
.
</paragraph>
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This new species differs from
<taxonomicName id="4C689A8F9D1C284BFE41FD9DFC2DFDE5" authority="(Gilbert 1978: 46) Bruyns" authorityName="Bruyns" baseAuthorityName="Gilbert" baseAuthorityPageNumber="46" baseAuthorityYear="1978" box="[492,950,518,545]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFE41FD9DFDE5FDE4" box="[492,638,518,545]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
(
<bibRefCitation id="EFF99CFD9D1C284BFD3DFD9CFCC9FDE4" author="Gilbert, M. G." box="[656,850,518,544]" pageId="3" pageNumber="198" pagination="39 - 50" refId="ref5602" refString="Gilbert, M. G. (1978) The ' Ango group' of Caralluma in Ethiopia. The Cactus and Succulent Journal of Great Britain 40: 39 - 50." type="journal article" year="1978">Gilbert 1978: 46</bibRefCitation>
) Bruyns
</taxonomicName>
in
<bibRefCitation id="EFF99CFD9D1C284BFC4DFD9DFA93FDE4" author="Bruyns, PV &amp; Klak, C. &amp; Hanacek, P." box="[992,1288,518,545]" pageId="3" pageNumber="198" pagination="399 - 436" refId="ref5319" refString="Bruyns, PV., Klak, C. &amp; Hanacek, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae). South African Journal of Botany 112: 399 - 436. https: // doi. org / 10.1016 / j. sajb. 2017.06.021" type="journal article" year="2017">
Bruyns
<emphasis id="B91C3D1E9D1C284BFB96FD9DFBEBFDE4" box="[1083,1136,518,544]" italics="true" pageId="3" pageNumber="198">et al</emphasis>
. (2017: 426)
</bibRefCitation>
by the larger, deep maroon, bowl-shaped corolla with a tube that contains ± all of the gynostegium (in
<taxonomicName id="4C689A8F9D1C284BFBDEFDB1FA99FD80" authorityName="Bruyns" baseAuthorityName="Gilbert" baseAuthorityYear="1978" box="[1139,1282,554,581]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFBDEFDB1FA99FD80" box="[1139,1282,554,581]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
</taxonomicName>
the tube is ±
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long and the gynostegium projects some distance above the rotate corolla). The gynostegium differs in being ± uniformly broad to its base (it becomes narrower towards the base in
<taxonomicName id="4C689A8F9D1C284BFC3FFDE9FBBAFD48" authorityName="Bruyns" baseAuthorityName="Gilbert" baseAuthorityYear="1978" box="[914,1057,626,653]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFC3FFDE9FBBAFD48" box="[914,1057,626,653]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
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) with much longer inner lobes that exceed the anthers and are gathered into a small column in the centre above the style-head.
</paragraph>
<paragraph id="8BD7E10C9D1C284BFF10FD20FD35FB08" blockId="3.[136,1452,518,2093]" pageId="3" pageNumber="198">
Small loosely mat-forming non-rhizomatous succulent perennial 80300 ×
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.
<emphasis id="B91C3D1E9D1C284BFB0EFD20FA96FD10" box="[1187,1293,698,724]" italics="true" pageId="3" pageNumber="198">Branches</emphasis>
many, fleshy, decumbent, 3080 ×
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(excluding teeth), glabrous, greyish green with irregular purple blotches, tubercles
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long, spreading, deltoid, slightly laterally flattened and joined into 4 angles along branch, with slight grooves between angles, tapering into short caducous teeth.
<emphasis id="B91C3D1E9D1C284BFD75FCBCFCF5FC84" box="[728,878,806,832]" italics="true" pageId="3" pageNumber="198">Inflorescence</emphasis>
usually 1 per branch near tip, with 1 to 2 flowers developing in gradual succession from alongside leaf-axil, with 12 narrowly attenuate bracts
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long at base;
<emphasis id="B91C3D1E9D1C284BFF25FCF4FF4AFC4C" box="[136,209,878,904]" italics="true" pageId="3" pageNumber="198">pedice</emphasis>
l 24 ×
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, ascending and holding flower facing slightly upwards, grey-green;
<emphasis id="B91C3D1E9D1C284BFB2CFCF4FB5CFC4C" box="[1153,1223,878,904]" italics="true" pageId="3" pageNumber="198">sepals</emphasis>
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long,
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broad at base, ovate-lanceolate.
<emphasis id="B91C3D1E9D1C284BFD82FC08FD1EFC68" box="[559,645,914,940]" italics="true" pageId="3" pageNumber="198">Corolla</emphasis>
± rotate with slightly reflexed lobes,
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diam., emitting faint bad odour; outside pale green with brownish stripes, glabrous and smooth; inside dull deep maroon (white near base of tube), glabrous (though covered with minute bristle-like papillae), faintly radially rugulose;
<emphasis id="B91C3D1E9D1C284BFB1BFC40FB7DFC30" box="[1206,1254,986,1012]" italics="true" pageId="3" pageNumber="198">tube</emphasis>
conical,
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deep and
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diam. at mouth;
<emphasis id="B91C3D1E9D1C284BFDB5FC64FDC8FBDC" box="[536,595,1022,1048]" italics="true" pageId="3" pageNumber="198">lobes</emphasis>
broadly ovate-deltate,
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long,
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broad at base, acute, convex inside with margins reflexed.
<emphasis id="B91C3D1E9D1C284BFE7FFBB9FDBCFBF9" box="[466,551,1059,1085]" italics="true" pageId="3" pageNumber="198">Corona</emphasis>
56 ×
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, somewhat cupular in outline, glabrous, without basal stipe; outer lobes ascending, forming broad bays opposite guide-rails and between inner lobes, ±
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long, dark chocolatebrown, shiny, emarginate in middle; inner lobes adpressed to backs of anthers and exceeding them to meet in centre and rising there in short column, ±
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long, paler brown than outer lobes, dorsiventrally flattened, linear, obtuse or slightly emarginate.
<emphasis id="B91C3D1E9D1C284BFEC0FB28FE54FB08" box="[365,463,1202,1228]" italics="true" pageId="3" pageNumber="198">Follicles</emphasis>
and
<emphasis id="B91C3D1E9D1C284BFDA8FB28FDACFB08" box="[517,567,1202,1228]" italics="true" pageId="3" pageNumber="198">seed</emphasis>
unknown.
</paragraph>
</subSubSection>
<subSubSection id="C372B2879D1C284BFF10FB4CFE9EFA29" pageId="3" pageNumber="198" type="distribution">
<paragraph id="8BD7E10C9D1C284BFF10FB4CFE9EFA29" blockId="3.[136,1452,518,2093]" pageId="3" pageNumber="198">
<emphasis id="B91C3D1E9D1C284BFF10FB4CFE4AFB34" bold="true" box="[189,465,1238,1264]" pageId="3" pageNumber="198">Distribution &amp; Habitat</emphasis>
:—Only known in northern
<collectingCountry id="F37FA19C9D1C284BFCA4FB4CFCF3FB34" box="[777,872,1238,1264]" name="Ethiopia" pageId="3" pageNumber="198">Ethiopia</collectingCountry>
on the steep slopes of the Rift Valley descending to the
<collectingRegion id="49AC2FEE9D1C284BFF02FB60FEA7FAD0" box="[175,316,1274,1300]" country="Ethiopia" name="Afar" pageId="3" pageNumber="198">Afar Region</collectingRegion>
, this new species is found on flattish places on stony, east-facing schistose slopes at around
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. Here it occurs under low bushes, with a wealth of other stapeliads such as
<taxonomicName id="4C689A8F9D1C284BFBABFA85FEC1FA99" authority="(A. C. White &amp; B. Sloane 1937: 268) Bruyns" authorityName="Bruyns" baseAuthorityName="A. C. White &amp; B. Sloane" baseAuthorityPageNumber="268" baseAuthorityYear="1937" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="baldratii">
<emphasis id="B91C3D1E9D1C284BFBABFA85FB11FAFC" box="[1030,1162,1310,1337]" italics="true" pageId="3" pageNumber="198">C. baldratii</emphasis>
(A.C.White &amp; B. Sloane 1937: 268) Bruyns
</taxonomicName>
in
<bibRefCitation id="EFF99CFD9D1C284BFED3FAD9FD00FA98" author="Bruyns, PV &amp; Klak, C. &amp; Hanacek, P." box="[382,667,1346,1373]" pageId="3" pageNumber="198" pagination="399 - 436" refId="ref5319" refString="Bruyns, PV., Klak, C. &amp; Hanacek, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae). South African Journal of Botany 112: 399 - 436. https: // doi. org / 10.1016 / j. sajb. 2017.06.021" type="journal article" year="2017">
Bruyns
<emphasis id="B91C3D1E9D1C284BFE7BFAD9FD9CFA98" box="[470,519,1346,1372]" italics="true" pageId="3" pageNumber="198">et al</emphasis>
. (2017: 426)
</bibRefCitation>
,
<taxonomicName id="4C689A8F9D1C284BFD0AFAD9FCDDFA98" box="[679,838,1346,1373]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="cereiformis">
<emphasis id="B91C3D1E9D1C284BFD0AFAD9FCDDFA98" box="[679,838,1346,1373]" italics="true" pageId="3" pageNumber="198">C. cereiformis</emphasis>
</taxonomicName>
(
<bibRefCitation id="EFF99CFD9D1C284BFCF9FAD8FC76FA98" author="Hooker, J. D." box="[852,1005,1346,1372]" pageId="3" pageNumber="198" refId="ref5765" refString="Hooker, J. D. (1871) Echidnopsis. Curtis' Botanical Magazine 97: t. 5930." type="journal volume" year="1871">Hooker 1871</bibRefCitation>
: t. 5930) Bruyns in
<bibRefCitation id="EFF99CFD9D1C284BFB66FAD9FF25FA44" author="Bruyns, PV &amp; Klak, C. &amp; Hanacek, P." pageId="3" pageNumber="198" pagination="399 - 436" refId="ref5319" refString="Bruyns, PV., Klak, C. &amp; Hanacek, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae). South African Journal of Botany 112: 399 - 436. https: // doi. org / 10.1016 / j. sajb. 2017.06.021" type="journal article" year="2017">
Bruyns
<emphasis id="B91C3D1E9D1C284BFA8EFAD9FACFFA98" box="[1315,1364,1346,1372]" italics="true" pageId="3" pageNumber="198">et al</emphasis>
. (2017: 417)
</bibRefCitation>
,
<taxonomicName id="4C689A8F9D1C284BFF67FAFDFD19FA45" authority="(Bally 1956: 109) Bruyns" authorityName="Bruyns" baseAuthorityName="Bally" baseAuthorityPageNumber="109" baseAuthorityYear="1956" box="[202,642,1382,1409]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="planiflora">
<emphasis id="B91C3D1E9D1C284BFF67FAFDFEC0FA44" box="[202,347,1382,1409]" italics="true" pageId="3" pageNumber="198">C. planiflora</emphasis>
(
<bibRefCitation id="EFF99CFD9D1C284BFEC7FAFCFDB9FA44" author="Bally, P. R. O." box="[362,546,1382,1409]" pageId="3" pageNumber="198" pagination="107 - 109" refId="ref5004" refString="Bally, P. R. O. (1956) The genus Echidnopsis in tropical east Africa. The Cactus and Succulent Journal of Great Britain 18: 107 - 109." type="journal article" year="1956">Bally 1956: 109</bibRefCitation>
) Bruyns
</taxonomicName>
in
<bibRefCitation id="EFF99CFD9D1C284BFD0AFAFDFC58FA44" author="Bruyns, PV &amp; Klak, C. &amp; Hanacek, P." box="[679,963,1382,1409]" pageId="3" pageNumber="198" pagination="399 - 436" refId="ref5319" refString="Bruyns, PV., Klak, C. &amp; Hanacek, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae). South African Journal of Botany 112: 399 - 436. https: // doi. org / 10.1016 / j. sajb. 2017.06.021" type="journal article" year="2017">
Bruyns
<emphasis id="B91C3D1E9D1C284BFD52FAFDFCAAFA44" box="[767,817,1382,1408]" italics="true" pageId="3" pageNumber="198">et al</emphasis>
. (2017: 418)
</bibRefCitation>
and the much larger shrubby
<taxonomicName id="4C689A8F9D1C284BFABEFAFDFE20FA61" authority="(Deflers 1889: 169) Bruyns" authorityName="Bruyns" baseAuthorityName="Deflers" baseAuthorityPageNumber="169" baseAuthorityYear="1889" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="penicillata">
<emphasis id="B91C3D1E9D1C284BFABEFAFDFA37FA44" box="[1299,1452,1382,1409]" italics="true" pageId="3" pageNumber="198">C. penicillata</emphasis>
(
<bibRefCitation id="EFF99CFD9D1C284BFF22FA10FEC0FA60" author="Deflers, A." box="[143,347,1418,1444]" pageId="3" pageNumber="198" refId="ref5518" refString="Deflers, A. (1889) Voyage au Yemen. Paris, P. Klincksieck, 246 pp." type="book" year="1889">Deflers 1889: 169</bibRefCitation>
) Bruyns
</taxonomicName>
in
<bibRefCitation id="EFF99CFD9D1C284BFE73FA11FD62FA60" author="Bruyns, PV &amp; Klak, C. &amp; Hanacek, P." box="[478,761,1418,1445]" pageId="3" pageNumber="198" pagination="399 - 436" refId="ref5319" refString="Bruyns, PV., Klak, C. &amp; Hanacek, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae). South African Journal of Botany 112: 399 - 436. https: // doi. org / 10.1016 / j. sajb. 2017.06.021" type="journal article" year="2017">
Bruyns
<emphasis id="B91C3D1E9D1C284BFD98FA11FDFDFA60" box="[565,614,1418,1444]" italics="true" pageId="3" pageNumber="198">et al</emphasis>
. (2017: 413)
</bibRefCitation>
. Rainfall in these areas is unknown, but will be less than the ±
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recorded as the annual average at Mekele on the top of the plateau above these slopes. Rain falls here mainly in summer.
</paragraph>
</subSubSection>
<subSubSection id="C372B2879D1C284CFF10FA6CFAD7FE8D" lastPageId="4" lastPageNumber="199" pageId="3" pageNumber="198" type="discussion">
<paragraph id="8BD7E10C9D1C284CFF10FA6CFAA4FEE0" blockId="3.[136,1452,518,2093]" lastBlockId="4.[136,1452,158,329]" lastPageId="4" lastPageNumber="199" pageId="3" pageNumber="198">
<emphasis id="B91C3D1E9D1C284BFF10FA6CFEA0F9D4" bold="true" box="[189,315,1526,1552]" pageId="3" pageNumber="198">Discussion</emphasis>
:—This species, with its grey-green branches mottled with purple, with relatively long tubercles that taper into a slender, soft tooth, clearly belongs to sect.
<taxonomicName id="4C689A8F9D1C284BFD4BF980FBF2F9F1" authority="(Haworth 1812: 37) Bruyns" authorityName="Bruyns" baseAuthorityName="Haworth" baseAuthorityPageNumber="37" baseAuthorityYear="1812" box="[742,1129,1562,1589]" class="Magnoliopsida" family="Apocynaceae" genus="Orbea" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="genus">
<emphasis id="B91C3D1E9D1C284BFD4BF980FCB5F9F0" box="[742,814,1562,1588]" italics="true" pageId="3" pageNumber="198">Orbea</emphasis>
(
<bibRefCitation id="EFF99CFD9D1C284BFC91F980FB92F9F0" author="Haworth, A. H." box="[828,1033,1562,1588]" pageId="3" pageNumber="198" refId="ref5743" refString="Haworth, A. H. (1812) Synopsis plantarum succulentarum. R. Taylor, London, 207 pp." type="book" year="1812">Haworth 1812: 37</bibRefCitation>
) Bruyns
</taxonomicName>
in
<bibRefCitation id="EFF99CFD9D1C284BFB21F981FA33F9F0" author="Bruyns, PV &amp; Klak, C. &amp; Hanacek, P." box="[1164,1448,1562,1589]" pageId="3" pageNumber="198" pagination="399 - 436" refId="ref5319" refString="Bruyns, PV., Klak, C. &amp; Hanacek, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae). South African Journal of Botany 112: 399 - 436. https: // doi. org / 10.1016 / j. sajb. 2017.06.021" type="journal article" year="2017">
Bruyns
<emphasis id="B91C3D1E9D1C284BFB4EF981FA8FF9F0" box="[1251,1300,1562,1588]" italics="true" pageId="3" pageNumber="198">et al</emphasis>
. (2017: 426)
</bibRefCitation>
. It is the first new species of this section to be discovered in
<collectingCountry id="F37FA19C9D1C284BFC9BF9A4FC0EF99C" box="[822,917,1598,1624]" name="Ethiopia" pageId="3" pageNumber="198">Ethiopia</collectingCountry>
since the pioneering work of
<bibRefCitation id="EFF99CFD9D1C284BFB46F9A4FA16F99C" author="Gilbert, M. G." box="[1259,1421,1598,1624]" pageId="3" pageNumber="198" pagination="39 - 50" refId="ref5602" refString="Gilbert, M. G. (1978) The ' Ango group' of Caralluma in Ethiopia. The Cactus and Succulent Journal of Great Britain 40: 39 - 50." type="journal article" year="1978">Gilbert (1978)</bibRefCitation>
in exploring
<collectingCountry id="F37FA19C9D1C284BFF54F9F8FEC3F9B8" box="[249,344,1634,1660]" name="Ethiopia" pageId="3" pageNumber="198">Ethiopia</collectingCountry>
for members of this section and for stapeliads more generally. Because of its non-rhizomatous habit and relatively short branches, these plants were initially thought to belong to
<taxonomicName id="4C689A8F9D1C284BFC56F91DFB17F964" authorityName="Bruyns" baseAuthorityName="Gilbert" baseAuthorityYear="1978" box="[1019,1164,1670,1697]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFC56F91DFB17F964" box="[1019,1164,1670,1697]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
</taxonomicName>
, though the branches are shorter and their tubercles are longer than they usually are in the eastern forms of
<taxonomicName id="4C689A8F9D1C284BFBA7F931FB0CF900" authorityName="Bruyns" baseAuthorityName="Gilbert" baseAuthorityYear="1978" box="[1034,1175,1706,1733]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFBA7F931FB0CF900" box="[1034,1175,1706,1733]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
</taxonomicName>
that occur on the plateau between Mekele and Wikro. These were at one time known as
<taxonomicName id="4C689A8F9D1C284BFCEBF954FA3DF92C" authority="(Plowes 1994: 116) Bruyns (2002: 46)" authorityName="Bruyns" authorityPageNumber="46" authorityYear="2002" baseAuthorityName="Plowes" baseAuthorityPageNumber="116" baseAuthorityYear="1994" box="[838,1446,1742,1769]" class="Magnoliopsida" family="Apocynaceae" genus="Orbea" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="gilbertii">
<emphasis id="B91C3D1E9D1C284BFCEBF954FC74F92C" box="[838,1007,1742,1768]" italics="true" pageId="3" pageNumber="198">Orbea gilbertii</emphasis>
(
<bibRefCitation id="EFF99CFD9D1C284BFC50F954FB53F92C" author="Plowes, D." box="[1021,1224,1742,1768]" pageId="3" pageNumber="198" pagination="103 - 123" refId="ref5951" refString="Plowes, D. (1994) The taxonomy of the genera Pachycymbium Leach and Angolluma Munster (Stapelieae: Asclepiadaceae). Excelsa 16: 103 - 123." type="journal article" year="1994">Plowes 1994: 116</bibRefCitation>
)
<bibRefCitation id="EFF99CFD9D1C284BFB7AF955FA3DF92C" author="Bruyns, P. V." box="[1239,1446,1742,1769]" pageId="3" pageNumber="198" pagination="1 - 196" refId="ref5119" refString="Bruyns, P. V. (2002) Monograph of Orbea and Ballyanthus (Apocynaceae-Asclepiadoideae-Ceropegieae). Systematic Botany Monographs 63: 1 - 196. https: // doi. org / 10.2307 / 25027899" type="journal article" year="2002">Bruyns (2002: 46)</bibRefCitation>
</taxonomicName>
, but are now treated as synonymous with
<taxonomicName id="4C689A8F9D1C284BFDCFF969FC73F8C8" authority="(Bruyns et al. 2017)" baseAuthorityName="Bruyns" baseAuthorityYear="2017" box="[610,1000,1778,1805]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFDCFF969FD69F8C8" box="[610,754,1778,1805]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
(
<bibRefCitation id="EFF99CFD9D1C284BFCA9F968FC7BF8C8" author="Bruyns, PV &amp; Klak, C. &amp; Hanacek, P." box="[772,992,1778,1805]" pageId="3" pageNumber="198" pagination="399 - 436" refId="ref5319" refString="Bruyns, PV., Klak, C. &amp; Hanacek, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae). South African Journal of Botany 112: 399 - 436. https: // doi. org / 10.1016 / j. sajb. 2017.06.021" type="journal article" year="2017">
Bruyns
<emphasis id="B91C3D1E9D1C284BFCF2F969FC08F8C8" box="[863,915,1778,1804]" italics="true" pageId="3" pageNumber="198">et al</emphasis>
. 2017
</bibRefCitation>
)
</taxonomicName>
. The quite broad, deep maroon corolla, where the corona is almost wholly contained in the obvious, bowl-shaped tube is unlike any other known species, since, in most of those with a prominent tube, the tube is much deeper. In
<taxonomicName id="4C689A8F9D1C284BFC61F8A1FBC7F890" box="[972,1116,1850,1877]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFC61F8A1FBC7F890" box="[972,1116,1850,1877]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
</taxonomicName>
the corolla faces horizontally and is similar in size (
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diam.), it is more or less flat with a very short tube about
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long in the centre. In this case the tube is so short that it only contains the base of the quite large corona (which is up to
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tall), which then projects far beyond the tube (
<bibRefCitation id="EFF99CFD9D1C284BFDB9F83CFD37F804" author="Bruyns, P. V." box="[532,684,1958,1984]" pageId="3" pageNumber="198" pagination="1 - 196" refId="ref5119" refString="Bruyns, P. V. (2002) Monograph of Orbea and Ballyanthus (Apocynaceae-Asclepiadoideae-Ceropegieae). Systematic Botany Monographs 63: 1 - 196. https: // doi. org / 10.2307 / 25027899" type="journal article" year="2002">Bruyns 2002</bibRefCitation>
: fig. 17). Other unique features of
<taxonomicName id="4C689A8F9D1C284BFB92F83DFB43F804" authorityName="Bruyns &amp; Hanacek" authorityYear="2020" box="[1087,1240,1959,1985]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="marronina">
<emphasis id="B91C3D1E9D1C284BFB92F83DFB43F804" box="[1087,1240,1959,1985]" italics="true" pageId="3" pageNumber="198">C. marronina</emphasis>
</taxonomicName>
are the manner in which the gynostegium remains more or less equally broad towards its base and the slender, comparatively long inner coronal lobes that rise in the centre in a short column (in
<taxonomicName id="4C689A8F9D1C284BFCAAF875FC0DF7CC" box="[775,918,2030,2057]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="abayensis">
<emphasis id="B91C3D1E9D1C284BFCAAF875FC0DF7CC" box="[775,918,2030,2057]" italics="true" pageId="3" pageNumber="198">C. abayensis</emphasis>
</taxonomicName>
they are deltate and do not exceed the anthers). The only species of sect.
<taxonomicName id="4C689A8F9D1C284BFE07F788FE69F7E8" authorityName="Bruyns" baseAuthorityName="Haworth" baseAuthorityYear="1812" box="[426,498,2066,2092]" class="Magnoliopsida" family="Apocynaceae" genus="Orbea" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="genus">
<emphasis id="B91C3D1E9D1C284BFE07F788FE69F7E8" box="[426,498,2066,2092]" italics="true" pageId="3" pageNumber="198">Orbea</emphasis>
</taxonomicName>
that occurs together with
<taxonomicName id="4C689A8F9D1C284BFCB1F789FC2EF7E8" authorityName="Bruyns &amp; Hanacek" authorityYear="2020" box="[796,949,2067,2093]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="marronina">
<emphasis id="B91C3D1E9D1C284BFCB1F789FC2EF7E8" box="[796,949,2067,2093]" italics="true" pageId="3" pageNumber="198">C. marronina</emphasis>
</taxonomicName>
is
<taxonomicName id="4C689A8F9D1C284BFC75F789FBC7F7E8" authorityName="Bruyns" baseAuthorityName="A. C. White &amp; B. Sloane" baseAuthorityYear="1937" box="[984,1116,2066,2093]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="baldratii">
<emphasis id="B91C3D1E9D1C284BFC75F789FBC7F7E8" box="[984,1116,2066,2093]" italics="true" pageId="3" pageNumber="198">C. baldratii</emphasis>
</taxonomicName>
.
<taxonomicName id="4C689A8F9D1C284BFBC1F789FAD0F7E8" authorityName="Bruyns" baseAuthorityName="A. C. White &amp; B. Sloane" baseAuthorityYear="1937" box="[1132,1355,2066,2093]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="3" pageNumber="198" phylum="Tracheophyta" rank="species" species="baldratii">
<emphasis id="B91C3D1E9D1C284BFBC1F789FAD0F7E8" box="[1132,1355,2066,2093]" italics="true" pageId="3" pageNumber="198">Ceropegia baldratii</emphasis>
</taxonomicName>
was not previously recorded from
<collectingCountry id="F37FA19C9D1B284CFE1EFF04FD89FF7C" box="[435,530,158,184]" name="Ethiopia" pageId="4" pageNumber="199">Ethiopia</collectingCountry>
and was believed to be endemic to
<collectingCountry id="F37FA19C9D1B284CFC1AFF04FB98FF7C" box="[951,1027,158,184]" name="Eritrea" pageId="4" pageNumber="199">Eritrea</collectingCountry>
(
<bibRefCitation id="EFF99CFD9D1B284CFBB9FF04FB31FF7C" author="Gilbert, M. G." box="[1044,1194,158,184]" pageId="4" pageNumber="199" pagination="39 - 50" refId="ref5602" refString="Gilbert, M. G. (1978) The ' Ango group' of Caralluma in Ethiopia. The Cactus and Succulent Journal of Great Britain 40: 39 - 50." type="journal article" year="1978">Gilbert 1978</bibRefCitation>
;
<bibRefCitation id="EFF99CFD9D1B284CFB15FF05FAD4FF7C" author="Bruyns, P. V." box="[1208,1359,158,185]" pageId="4" pageNumber="199" pagination="1 - 196" refId="ref5119" refString="Bruyns, P. V. (2002) Monograph of Orbea and Ballyanthus (Apocynaceae-Asclepiadoideae-Ceropegieae). Systematic Botany Monographs 63: 1 - 196. https: // doi. org / 10.2307 / 25027899" type="journal article" year="2002">Bruyns 2002</bibRefCitation>
;
<bibRefCitation id="EFF99CFD9D1B284CFAF1FF04FF66FF18" author="Gilbert, M. G." pageId="4" pageNumber="199" refId="ref5634" refString="Gilbert, M. G. (2003) Ceropegia. In: Hedberg, I., Edwards, S. &amp; Nemomissa, S. (Eds.) Flora of Ethiopia and Eritrea 4 (1). EMPDA, Addis Ababa, 352 pp." type="book" year="2003">Gilbert 2003: 187</bibRefCitation>
). This species has strongly rhizomatous branches, which may spread underground for up to
<quantity id="4C904CE99D1B284CFAADFF58FADEFF19" box="[1280,1349,194,221]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="4" pageNumber="199" unit="cm" value="10.0">10 cm</quantity>
or more. Its flowers are also very different to those of the new species, where the corolla is divided nearly to the centre into slender linear lobes and there is more or less no tube in the centre around the corona (
<bibRefCitation id="EFF99CFD9D1B284CFBE8FE90FB40FEE0" author="Bruyns, P. V." box="[1093,1243,266,292]" pageId="4" pageNumber="199" pagination="1 - 196" refId="ref5119" refString="Bruyns, P. V. (2002) Monograph of Orbea and Ballyanthus (Apocynaceae-Asclepiadoideae-Ceropegieae). Systematic Botany Monographs 63: 1 - 196. https: // doi. org / 10.2307 / 25027899" type="journal article" year="2002">Bruyns 2002</bibRefCitation>
: fig. 30).
</paragraph>
<paragraph id="8BD7E10C9D1B284CFF10FEB4FAD7FE8D" blockId="4.[136,1452,158,329]" box="[189,1356,302,329]" pageId="4" pageNumber="199">
The flowers of
<taxonomicName id="4C689A8F9D1B284CFEC4FEB5FD9AFE8C" authorityName="Bruyns &amp; Hanacek" authorityYear="2020" box="[361,513,303,329]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="4" pageNumber="199" phylum="Tracheophyta" rank="species" species="marronina">
<emphasis id="B91C3D1E9D1B284CFEC4FEB5FD9AFE8C" box="[361,513,303,329]" italics="true" pageId="4" pageNumber="199">C. marronina</emphasis>
</taxonomicName>
appear towards the end of summer but usually before those of
<taxonomicName id="4C689A8F9D1B284CFB6EFEB5FADEFE8C" authorityName="Bruyns" baseAuthorityName="A. C. White &amp; B. Sloane" baseAuthorityYear="1937" box="[1219,1349,302,329]" class="Magnoliopsida" family="Apocynaceae" genus="Ceropegia" kingdom="Plantae" order="Gentianales" pageId="4" pageNumber="199" phylum="Tracheophyta" rank="species" species="baldratii">
<emphasis id="B91C3D1E9D1B284CFB6EFEB5FADEFE8C" box="[1219,1349,302,329]" italics="true" pageId="4" pageNumber="199">C. baldratii</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>