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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.51.7104" ID-PMC="PMC4489078" ID-Pensoft-Pub="1314-2003-51-1" ID-Pensoft-UUID="E76E3938E216FF804849B803C469FE14" ID-PubMed="26140023" ID-Zenodo-Dep="576310" ModsDocID="1314-2003-51-1" checkinTime="1451251513006" checkinUser="pensoft" docAuthor="Wood, John R. I., Williams, Bethany R. M., Mitchell, Thomas C., Carine, Mark A., Harris, David J. &amp; Scotland, Robert W." docDate="2015" docId="A8C8EE48CCA6535585869E9FC88ADC3C" docLanguage="en" docName="PhytoKeys 51: 1-282" docOrigin="PhytoKeys 51" docPubDate="2015-06-18" docSource="http://dx.doi.org/10.3897/phytokeys.51.7104" docTitle="Convolvulus thomsonii Baker, Bull Misc. Inform. Kew 1894: 67. 1894. (Baker 1894" docType="treatment" docVersion="3" id="E76E3938E216FF804849B803C469FE14" lastPageNumber="82" masterDocId="E76E3938E216FF804849B803C469FE14" masterDocTitle="A foundation monograph of Convolvulus L. (Convolvulaceae)" masterLastPageNumber="282" masterPageNumber="1" pageNumber="81" updateTime="1668141381863" updateUser="ExternalLinkService">
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<mods:title>A foundation monograph of Convolvulus L. (Convolvulaceae)</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wood, John R. I.</mods:namePart>
<mods:affiliation>Department of Plant Sciences, South Parks Road, University of Oxford, OX 1 3 RB, UK &amp; Honorary Research Associate, Royal Botanic Gardens, Kew</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Williams, Bethany R. M.</mods:namePart>
<mods:affiliation>Department of Plant Sciences, South Parks Road, University of Oxford, OX 1 3 RB, UK &amp; Department of Life Sciences, Natural History Museum, Cromwell Road, London SW 7 5 BD, UK</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Mitchell, Thomas C.</mods:namePart>
<mods:affiliation>Plant Biodiversity Research, Technische Universitaet Muenchen, Maximus-von-Imhof Forum 2, 85354 Freising, Germany</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Carine, Mark A.</mods:namePart>
<mods:affiliation>Department of Life Sciences, Natural History Museum, Cromwell Road, London SW 7 5 BD, UK</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Harris, David J.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6801-2484</mods:nameIdentifier>
<mods:affiliation>Royal Botanic Garden Edinburgh, 20 A Inverleith Row, Edinburgh EH 3 5 LR, UK</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Scotland, Robert W.</mods:namePart>
<mods:affiliation>Department of Plant Sciences, South Parks Road, University of Oxford, OX 1 3 RB, UK</mods:affiliation>
<mods:nameIdentifier type="email">robert.scotland@plants.ox.ac.uk</mods:nameIdentifier>
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<mods:date>2015</mods:date>
<mods:detail type="pubDate">
<mods:number>2015-06-18</mods:number>
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<mods:detail type="volume">
<mods:number>51</mods:number>
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<mods:start>1</mods:start>
<mods:end>282</mods:end>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.51.7104</mods:url>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.51.7104</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576310</mods:identifier>
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<treatment ID-GBIF-Taxon="182228040" LSID="urn:lsid:plazi:treatment:A8C8EE48CCA6535585869E9FC88ADC3C" httpUri="http://treatment.plazi.org/id/A8C8EE48CCA6535585869E9FC88ADC3C" lastPageId="81" lastPageNumber="82" pageId="80" pageNumber="81">
<subSubSection pageId="80" pageNumber="81" type="nomenclature">
<paragraph pageId="80" pageNumber="81">
38.
<taxonomicName LSID="A8C8EE48-CCA6-5355-8586-9E9FC88ADC3C" authority="Baker, Bull Misc. Inform. Kew 1894: 67. 1894. (Baker 1894: 67)." authorityName="Baker, Bull Misc. Inform. Kew 1894: 67. 1894. (Baker" authorityYear="1894" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus thomsonii" order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="species" species="thomsonii">Convolvulus thomsonii Baker, Bull Misc. Inform. Kew 1894: 67. 1894. (Baker 1894: 67).</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection pageId="80" pageNumber="81" type="reference_group">
<paragraph pageId="80" pageNumber="81">
<taxonomicName class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus sagittatus subsp. subvar." order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="subVariety" species="sagittatus" subSpecies="subvar." subVariety="villosus">Convolvulus sagittatus subvar. villosus</taxonomicName>
Hallier f., Bull. Herb. Boissier 6: 533. 1898, as &quot;
<taxonomicName class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus sagittatus subsp. subvar. var. parviflorus" order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="subVariety" species="sagittatus" subSpecies="subvar." subVariety="villosus" variety="parviflorus">Convolvulus sagittatus var. parviflorus Hallier f. subvar. villosus</taxonomicName>
Hallier f.&quot; (
<bibRefCitation author="Hallier, H" editor="Schinz, H" journalOrPublisher="Bulletin de L'Herbier Boissier" pageId="203" pageNumber="204" pagination="529 - 548" refId="B146" refString="Hallier, H, 1898a. Convolvulaceae. In: Schinz, H, Ed., Beitrage zur Kenntnis der Afrikanische Flora VII. Bulletin de L'Herbier Boissier 6: 529 - 548" title="Convolvulaceae." volume="6" volumeTitle="Beitrage zur Kenntnis der Afrikanische Flora VII." year="1898 a">Hallier 1898a</bibRefCitation>
: 533). Type. Based on
<taxonomicName authorityName="Baker, Bull Misc. Inform. Kew 1894: 67. 1894. (Baker" authorityYear="1894" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus thomsonii" order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="species" species="thomsonii">
<emphasis italics="true" pageId="80" pageNumber="81">Convolvulus thomsonii</emphasis>
</taxonomicName>
Baker
</paragraph>
<paragraph pageId="80" pageNumber="81">
<taxonomicName class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus sagittatus subsp. var. var. villosus" order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="variety" species="sagittatus" subSpecies="var." variety="villosus">Convolvulus sagittatus var. villosus</taxonomicName>
(Hallier f.) Rendle, Fl. Trop. Africa (Oliver et al.) 4(2): 96. 1905. (
<bibRefCitation author="Baker, JG" journalOrPublisher="Lovell Reeve &amp; Co., London" pageId="198" pageNumber="199" pagination="62 - 206" refId="B19" refString="Baker, JG, Rendle, AB, 1905. Flora of Tropical Africa volume 4: Hydrophyllaceae to Pedalineae. Lovell Reeve &amp; Co., London: 62 - 206" title="Flora of Tropical Africa volume 4: Hydrophyllaceae to Pedalineae" year="1905">Baker and Rendle 1905</bibRefCitation>
: 96). Type. Based on
<taxonomicName class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus subsp. subvar." order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="subVariety" species="sagittatus" subSpecies="subvar." subVariety="villosus">Convolvulus subvar. villosus</taxonomicName>
Hallier f.
</paragraph>
<paragraph pageId="80" pageNumber="81">
<taxonomicName authorityName="Pilger" authorityYear="1908" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus bussei" order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="species" species="bussei">Convolvulus bussei</taxonomicName>
Pilg., Bot. Jahrb. Syst. 41: 295. 1908. (
<bibRefCitation author="Pilger, R" journalOrPublisher="Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie" pageId="209" pageNumber="210" pagination="293 - 297" refId="B270" refString="Pilger, R, 1908. Convolvulaceae africanae. Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 41: 293 - 297" title="Convolvulaceae africanae." volume="41" year="1908">Pilger 1908</bibRefCitation>
: 295). Type. TANZANIA, Songea District,
<emphasis italics="true" pageId="80" pageNumber="81">Busse</emphasis>
938 (holotype B†; isotype EA).
</paragraph>
<paragraph pageId="80" pageNumber="81">
<taxonomicName authorityName="Schulze-Menz" authorityYear="1939" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus hallierianus" order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="species" species="hallierianus">Convolvulus hallierianus</taxonomicName>
Schulze-Menz, Notizbl. Bot. Gart. Berlin-Dahlem 14: 377. 1939. (
<bibRefCitation author="Schulze-Menz, GK" editor="Mildbraed, J" journalOrPublisher="Notizblatt des Botanischen Gartens und Museums zu Berlin" pageId="211" pageNumber="212" pagination="377 - 378" refId="B323" refString="Schulze-Menz, GK, 1939. Convolvulaceae. In: Mildbraed, J, Ed., Neue Arten aus dem Mantengo-Hochland, sudwestliches Tanganyika-Territ, leg. H Zerny II. Notizblatt des Botanischen Gartens und Museums zu Berlin 14: 377 - 378" title="Convolvulaceae." volume="14" volumeTitle="Neue Arten aus dem Mantengo-Hochland, sudwestliches Tanganyika-Territ, leg. H Zerny II." year="1939">Schulze-Menz 1939</bibRefCitation>
: 377). Type. TANZANIA, Matengo hills,
<emphasis italics="true" pageId="80" pageNumber="81">Zerny</emphasis>
17 (holotype W!).
</paragraph>
<paragraph pageId="80" pageNumber="81">
<taxonomicName authorityName="Schulze-Menz" authorityYear="1939" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus zernyi" order="Solanales" pageId="80" pageNumber="81" phylum="Tracheophyta" rank="species" species="zernyi">Convolvulus zernyi</taxonomicName>
Schulze-Menz, Notizbl. Bot. Gart. Berlin-Dahlem 14: 377. 1939. (
<bibRefCitation author="Schulze-Menz, GK" editor="Mildbraed, J" journalOrPublisher="Notizblatt des Botanischen Gartens und Museums zu Berlin" pageId="211" pageNumber="212" pagination="377 - 378" refId="B323" refString="Schulze-Menz, GK, 1939. Convolvulaceae. In: Mildbraed, J, Ed., Neue Arten aus dem Mantengo-Hochland, sudwestliches Tanganyika-Territ, leg. H Zerny II. Notizblatt des Botanischen Gartens und Museums zu Berlin 14: 377 - 378" title="Convolvulaceae." volume="14" volumeTitle="Neue Arten aus dem Mantengo-Hochland, sudwestliches Tanganyika-Territ, leg. H Zerny II." year="1939">Schulze-Menz 1939</bibRefCitation>
: 377). Type. TANZANIA, Matengo hills,
<emphasis italics="true" pageId="80" pageNumber="81">Zerny</emphasis>
370 (holotype W!).
</paragraph>
</subSubSection>
<subSubSection pageId="80" pageNumber="81" type="type">
<paragraph pageId="80" pageNumber="81">Type.</paragraph>
<paragraph pageId="80" pageNumber="81">
TANZANIA, N. of Lake Nyasa,
<emphasis italics="true" pageId="80" pageNumber="81">Thomson</emphasis>
s.n. (holotype K!).
</paragraph>
</subSubSection>
<subSubSection lastPageId="81" lastPageNumber="82" pageId="80" pageNumber="81" type="description">
<paragraph pageId="80" pageNumber="81">Description.</paragraph>
<paragraph lastPageId="81" lastPageNumber="82" pageId="80" pageNumber="81">
Prostrate perennial herb, densely tomentose on all vegetative parts, often brownish when dry. Leaves petiolate, 1.2-5
<normalizedToken originalValue="×">x</normalizedToken>
0.5-2.5 cm, variable in shape, ovate, lanceolate-deltoid or, most commonly oblong, margin undulate to crenate, base hastate to sagittate; petioles 3-6 (-20) mm. Flowers solitary, axillary, pedunculate; peduncles solitary or, occasionally, paired, 1.5-4 cm, often arching; bracteoles 5-7
<pageBreakToken pageId="81" pageNumber="82" start="start">mm</pageBreakToken>
, linear; pedicels 3-8 (-15) mm; outer sepals 9-11
<normalizedToken originalValue="×">x</normalizedToken>
5 mm, ovate, acute to shortly acuminate, densely hairy; corolla (1.3-)1.5-1.8 cm long, white, unlobed, midpetaline bands pubescent, terminating in a tooth; ovary glabrous. Capsule glabrous; seeds glabrous, nearly smooth but somewhat rugose on the angles. [
<bibRefCitation author="Verdcourt, B" editor="Hubbard, CE" journalOrPublisher="HMSO, London" pageId="213" pageNumber="214" pagination="1 - 161" refId="B373" refString="Verdcourt, B, 1963. Convolvulaceae. In: Hubbard, CE, Milne-Redhead, E, Eds., Flora of Tropical East Africa. HMSO, London: 1 - 161" title="Convolvulaceae." volumeTitle="Flora of Tropical East Africa." year="1963">Verdcourt 1963</bibRefCitation>
: 42 (as
<taxonomicName authorityName="Schulze-Menz" authorityYear="1939" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus zernyi" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="zernyi">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus zernyi</emphasis>
</taxonomicName>
)]
</paragraph>
</subSubSection>
<subSubSection pageId="81" pageNumber="82" type="distribution">
<paragraph pageId="81" pageNumber="82">Distribution.</paragraph>
<paragraph pageId="81" pageNumber="82">
Malawi (
<emphasis italics="true" pageId="81" pageNumber="82">Synge</emphasis>
WC 251,
<emphasis italics="true" pageId="81" pageNumber="82">Pawek</emphasis>
13111,
<emphasis italics="true" pageId="81" pageNumber="82">Richards</emphasis>
20646); Tanzania (
<emphasis italics="true" pageId="81" pageNumber="82">Lovett et al.</emphasis>
2089,
<emphasis italics="true" pageId="81" pageNumber="82">Mgaza</emphasis>
121). 1800-2100 m.
</paragraph>
</subSubSection>
<subSubSection pageId="81" pageNumber="82" type="notes">
<paragraph pageId="81" pageNumber="82">Notes.</paragraph>
<paragraph pageId="81" pageNumber="82">
We have widened the concept of this species from that of
<bibRefCitation author="Verdcourt, B" editor="Hubbard, CE" journalOrPublisher="HMSO, London" pageId="213" pageNumber="214" pagination="1 - 161" refId="B373" refString="Verdcourt, B, 1963. Convolvulaceae. In: Hubbard, CE, Milne-Redhead, E, Eds., Flora of Tropical East Africa. HMSO, London: 1 - 161" title="Convolvulaceae." volumeTitle="Flora of Tropical East Africa." year="1963">Verdcourt (1963)</bibRefCitation>
to include plants with a somewhat smaller corolla and calyx, including the type of
<taxonomicName authorityName="Baker, Bull Misc. Inform. Kew 1894: 67. 1894. (Baker" authorityYear="1894" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus thomsonii" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="thomsonii">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus thomsonii</emphasis>
</taxonomicName>
, which is atypical in its relatively short calyx and corolla but is clearly an immature specimen of this taxon. This species appears to be frequent in the highlands of northern Malawi and southern Tanzania. It is very close to
<taxonomicName class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus sagittatus" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="sagittatus">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus sagittatus</emphasis>
</taxonomicName>
but differs in the larger sepals, 9-11 mm in length and the tomentose indumentum, which dries brown. The rather long, often arching peduncles are also very characteristic. An unusual feature is the occasional presence of paired peduncles. It can be distinguished from
<taxonomicName authorityName="Engl., Abh. Koenigl. Akad. Wiss. Berlin 2: 349. 1892. (Engler" authorityYear="1892" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus aschersonii" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="aschersonii">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus aschersonii</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="J. R. I. Wood &amp; R. W. Scotland" authorityYear="2015" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus austroafricanus" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="austroafricanus">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus austroafricanus</emphasis>
</taxonomicName>
by the larger solitary flowers as well as the tomentose indumentum. It is also close to
<taxonomicName authorityName="C. H. Wright, Fl. Cap. (Harvey) 4 (2): 75. 1904. (Baker and Wright" authorityYear="1904" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus galpinii" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="galpinii">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus galpinii</emphasis>
</taxonomicName>
differing principally in the longer, gradually narrowed sepals.
</paragraph>
<paragraph pageId="81" pageNumber="82">
As with many other African species, intermediates with other species are found. These have the same indumentum, relatively large corollas and sepals of
<taxonomicName authorityName="Baker, Bull Misc. Inform. Kew 1894: 67. 1894. (Baker" authorityYear="1894" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus thomsonii" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="thomsonii">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus thomsonii</emphasis>
</taxonomicName>
but inflorescences of 2-3 flowers.
<emphasis italics="true" pageId="81" pageNumber="82">Phillips</emphasis>
2738 and 3920 from northern Malawi and
<emphasis italics="true" pageId="81" pageNumber="82">Richards</emphasis>
6071 from Zambia appear to be intermediate with
<taxonomicName authorityName="J. R. I. Wood &amp; R. W. Scotland" authorityYear="2015" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus austroafricanus" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="austroafricanus">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus austroafricanus</emphasis>
</taxonomicName>
or possibly
<taxonomicName authorityName="Engl., Abh. Koenigl. Akad. Wiss. Berlin 2: 349. 1892. (Engler" authorityYear="1892" class="Magnoliopsida" family="Convolvulaceae" genus="Convolvulus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Convolvulus aschersonii" order="Solanales" pageId="81" pageNumber="82" phylum="Tracheophyta" rank="species" species="aschersonii">
<emphasis italics="true" pageId="81" pageNumber="82">Convolvulus aschersonii</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>