<documentID-CLB-Dataset="6023"ID-DOI="http://dx.doi.org/10.3897/phytokeys.179.62514"ID-GBIF-Dataset="e5aa5473-472f-4b91-8500-cedbf2d258d7"ID-PMC="PMC8225607"ID-Pensoft-Pub="1314-2003-179-35"ID-Pensoft-UUID="8A717F353A1955EA970F44D4B50B2888"ID-PubMed="34220211"ModsDocID="1314-2003-179-35"checkinTime="1623961752461"checkinUser="pensoft"docAuthor="Shah, Sayed Afzal, Sultan, Amir, Wen, Jun, Ullah, Zahid, Nisa, Surat Un, Ren, Zhumei, Alam, Muhammad Maqsood, Iqbal, Javed & Mumtaz, Abdul Samad"docDate="2021"docId="97294066A90152FC802E8D87DEA92572"docLanguage="en"docName="PhytoKeys 179: 35-73"docOrigin="PhytoKeys 179"docPubDate="2021-06-17"docSource="http://dx.doi.org/10.3897/phytokeys.179.62514"docTitle="Vincetoxicum stewartianum S. A. Shah 2021, sp. nov."docType="treatment"docVersion="6"id="8A717F353A1955EA970F44D4B50B2888"lastPageNumber="35"masterDocId="8A717F353A1955EA970F44D4B50B2888"masterDocTitle="Taxonomy of Vincetoxicum s. str. (Asclepiadoideae, Apocynaceae) from southern Asia including three new species and resurrected names"masterLastPageNumber="73"masterPageNumber="35"pageNumber="35"updateTime="1732743090235"updateUser="ExternalLinkService">
<mods:titleid="0A33D84263C7B32A26556CFF85C23B0F">Taxonomy of Vincetoxicum s. str. (Asclepiadoideae, Apocynaceae) from southern Asia including three new species and resurrected names</mods:title>
<mods:affiliationid="990E733BE37961C3EB46A219E13A0876">Department of Plant Sciences, Quaid-i-Azam University, Nurpur Road, Islamabad 45320, Pakistan & Department of Biological Sciences, National University of Medical Sciences, The Mall, Abid Majeed Road, Rawalpindi, Punjab 46000, Pakistan</mods:affiliation>
<mods:affiliationid="10D6FE75C59B9020E791ADCCDB950759">National Herbarium, National Agriculture Research Centre (NARC), Park Road, Islamabad, Pakistan</mods:affiliation>
<mods:affiliationid="FC0C76D1D2CDA0B6DFCF047C6F719AE3">Department of Botany, National Museum of Natural History, MRC- 166, Smithsonian Institution, Washington DC 20013 - 7012, USA</mods:affiliation>
<mods:affiliationid="073C7525F3A45062493020AB08E1E0AF">Center for Plant Sciences and Biodiversity, University of Swat, Kanju Township, Swat, Pakistan</mods:affiliation>
<mods:affiliationid="0EA42962C20F472AA68B5BF8E9407752">Center for Plant Sciences and Biodiversity, University of Swat, Kanju Township, Swat, Pakistan</mods:affiliation>
<taxonomicNameid="9499D4F48FE7420DEF681ED1A3CD3E77"ID-CoL="8MP66"LSID="97294066-A901-52FC-802E-8D87DEA92572"authority="S. A. Shah"authorityName="S. A. Shah"authorityYear="2021"class="Magnoliopsida"family="Apocynaceae"genus="Vincetoxicum"higherTaxonomySource="CoL"kingdom="Plantae"lsidName="Vincetoxicum stewartianum"order="Gentianales"pageId="0"pageNumber="35"phylum="Tracheophyta"rank="species"species="stewartianum"status="sp. nov.">Vincetoxicum stewartianum S.A. Shah</taxonomicName>
<figureCitationid="CB1BC952B122427D53B60C58111487DD"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Outlines of leaves of southern Asian Vincetoxicum. All illustrated specimens are housed at RAW. The first image in each pair corresponds to the adaxial surface and the second to the abaxial surface. All leaves have been taken from the middle of the stem A, B Vincetoxicum sp. aff. arnottianum from S. A. Shah SAS- 9 C, D Vincetoxicum sp. aff. arnottianum from S. A. Shah SAS- 46 E, F Vincetoxicum sp. aff. arnottianum from R. Khan SAS- 41 G, H V. arnottianum from S. A. Shah & F. Rahman SAS- 3 I, J V. arnottianum from S. A. Shah & B. Ali SAS- 4 K, L V. cabulicum from D. Podlech 15814 M, N V. cardiostephanum from S. A. Shah, M. Turi et al. SAS- 40 O, P V. kenouriense from S. A. Shah & L. Ahmad SAS- 37 Q, R V. lenifolium from S. A. Shah SAS- 44 S, T V. luridum from S. A. Shah & I. Ahmad SAS- 23 U, V V. lenifolium from N. Ali 1029 W, X V. sakesarense from I. Ahmad 27821 Y, Z V. stewartianum from R. R. Stewart 16709 AA, AB V. stocksii from B. Gul, N. Khan et al. SAS- 21 AC, AD V. subcanescens from A. Sultan, Z. Saqib et al. SAS- 52 AE, AF V. subcanescens from S. A. Shah & A. Ullah SAS- 8. Drawing by M. Saleem and S. A. Shah."figureDoi="10.3897/phytokeys.179.62514.figure2"httpUri="https://binary.pensoft.net/fig/556582"pageId="0"pageNumber="35">Figs 2Y, Z</figureCitation>
<figureCitationid="3EB6E474BE74B726E093F74030E9C733"captionStart="Figure 3"captionStartId="F3"captionText="Figure 3. Illustration of corona types observed in southern Asian Vincetoxicum. The dark coloured shapes show corona lobes A Vincetoxicum arnottianum from S. A. Shah & B. Ali SAS- 4 (RAW) B V. cabulicum from W. Koelz 11764 (US) C V. cardiostephanum from S. A. Shah, M. Turi et al. SAS- 40 (RAW) D V. glaucum from W. Dudeeon & L. A. Kenoyer 56 (MO) E V. kenouriense from S. A. Shah & L. Ahmad SAS- 37 (RAW) F V. lenifolium from S. A. Shah SAS- 44 (RAW) G V. luridum from S. A. Shah & I. Ahmad SAS- 23 (RAW) H A variable specimen of V. lenifolium from N. Ali 1029 (RAW) I V. sakesarense from I. Ahmad 27821 (RAW) J V. stewartianum from R. R. Stewart 16709 (RAW) K V. stocksii from J. F. Duthie 18918 (RAW) L V. subcanescens from S. A. Shah & A. Ullah SAS- 8 (RAW). Drawing by M. Saleem and S. A. Shah."figureDoi="10.3897/phytokeys.179.62514.figure3"httpUri="https://binary.pensoft.net/fig/556583"pageId="0"pageNumber="35">, 3J</figureCitation>
<figureCitationid="F5CBDBD502740E7DB796837F2C0A5DB6"captionStart="Figure 4"captionStartId="F4"captionText="Figure 4. Pollinaria of southern Asian Vincetoxicum A, B V. arnottianum C V. cabulicum D, E V. cardiostephanum F V. glaucum G, H V. kenouriense I, J V. lenifolium K, L V. luridum M V. lenifolium N, O V. sakesarense P V. stewartianum Q, R V. stocksii S, T V. subcanescens."figureDoi="10.3897/phytokeys.179.62514.figure4"httpUri="https://binary.pensoft.net/fig/556584"pageId="0"pageNumber="35">, 4P</figureCitation>
<figureCitationid="B894AE1D4FC58C4DAC34B985722BDA71"captionStart="Figure 6"captionStartId="F6"captionText="Figure 6. Geographic distribution of southern Asian Vincetoxicum. The colour of the symbols corresponds to the colour of the corolla."figureDoi="10.3897/phytokeys.179.62514.figure6"httpUri="https://binary.pensoft.net/fig/556586"pageId="0"pageNumber="35">, 6</figureCitation>
<figureCitationid="022A737582D557A23873D57C40CBA684"captionStart="Figure 14"captionStartId="F14"captionText="Figure 14. Vincetoxicum stewartianum illustrated by M. Saleem from R. R. Stewart 16709 (RAW) A plant B adaxial surface of leaf C abaxial surface of leaf D corona."figureDoi="10.3897/phytokeys.179.62514.figure14"httpUri="https://binary.pensoft.net/fig/556594"pageId="0"pageNumber="35">, 14</figureCitation>
, the indumentum is extrorse on the stems, leaves are mostly narrowly ovate or lanceolate-ovate, flowers dark purple, and corona lobes are deltoid-rhomboid and do not exceed the gynostegium in length.
<materialsCitationid="36962F3C84078C1A1F31BE7FEE8731A8"collectingDate="1938-08-08"collectorName="R. R. Stewart"country="India"elevation="1068"location="Mussoorie"municipality="Landour"specimenCount="1"stateProvince="Uttarakhand"typeStatus="Holotype">
; apex acute to obtuse sometimes mucronulate; base obtuse to sub-obtuse; veins visible on both sides, secondary veins 8-14 on each side of midrib, both adaxial and abaxial surfaces of lamina glabrous to sometimes sub-glabrous, veins on both surfaces and margins pubescent. Inflorescences sessile; pedicels
<paragraphid="B87C9214C989CB80720481206CCE1FF7"pageId="0"pageNumber="35">Distribution and habitat.</paragraph>
<paragraphid="3169B992BC2A818BBFE3A183A4E121E7"pageId="0"pageNumber="35">Endemic to eastern Himalayan Mountains of India. The elevation range is 6000 to 7000 m. The limited herbarium materials do not provide more information.</paragraph>
<taxonomicNameid="932E2CB9B6C6950F24FD31F1A3CBC497"authorityName="S. A. Shah"authorityYear="2021"class="Magnoliopsida"family="Asclepiadaceae"genus="Vincetoxicum"higherTaxonomySource="CoL"kingdom="Plantae"lsidName="Vincetoxicum stewartianum"order="Gentianales"pageId="0"pageNumber="35"phylum="Tracheophyta"rank="species"species="stewartianum">
<tableCitationid="6C3C6771D8C554C13A1A7457D156BE86"captionStart="Table 1"captionStartId="T1"captionText="Table 1. Provisional conservation assessment and areas of endemism of southern Asian Vincetoxicum."httpUri="http://table.plazi.org/id/DC470DF7FB00AE34C43220E5083E5CEB"pageId="0"pageNumber="35"tableUuid="DC470DF7FB00AE34C43220E5083E5CEB">1</tableCitation>
<taxonomicNameid="17DE4381BB4ECF2E0C9136D2F324AB3D"authorityName="S. A. Shah"authorityYear="2021"class="Magnoliopsida"family="Asclepiadaceae"genus="Vincetoxicum"higherTaxonomySource="CoL"kingdom="Plantae"lsidName="Vincetoxicum stewartianum"order="Gentianales"pageId="0"pageNumber="35"phylum="Tracheophyta"rank="species"species="stewartianum">
is gathered from only the type locality. Besides label data on gatherings from the type locality, information is lacking about its present occurrence. A survey on its occurrence and ecology is recommended.
<taxonomicNameid="97D5C45D0BEE869F935C6B769A02B9DE"authorityName="S. A. Shah"authorityYear="2021"class="Magnoliopsida"family="Asclepiadaceae"genus="Vincetoxicum"higherTaxonomySource="CoL"kingdom="Plantae"lsidName="Vincetoxicum lenifolium"order="Gentianales"pageId="0"pageNumber="35"phylum="Tracheophyta"rank="species"species="lenifolium">
