194 lines
18 KiB
XML
194 lines
18 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.17.3485" ID-PMC="PMC3519352" ID-Pensoft-Pub="1314-2003-17-27" ID-Pensoft-UUID="13085151FF8A1166AA41FFE7FFEC1914" ID-PubMed="23233816" ID-Zenodo-Dep="576141" ModsDocID="1314-2003-17-27" checkinTime="1451251973990" checkinUser="pensoft" docAuthor="Krings, Alexander & Morillo, Gilberto" docDate="2012" docId="0CF13D8BBE53921F34403E57B0B5E4BD" docLanguage="en" docName="PhytoKeys 17: 27-39" docOrigin="PhytoKeys 17" docPubDate="2012-09-26" docSource="http://dx.doi.org/10.3897/phytokeys.17.3485" docTitle="Matelea trichopedicellata Krings & Morillo 2012, sp. nov." docType="treatment" docVersion="6" id="13085151FF8A1166AA41FFE7FFEC1914" lastPageNumber="32" masterDocId="13085151FF8A1166AA41FFE7FFEC1914" masterDocTitle="Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) from the Guiana Shield and Amazonian Brazil" masterLastPageNumber="39" masterPageNumber="27" pageNumber="31" updateTime="1668140227011" 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>Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) from the Guiana Shield and Amazonian Brazil</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>Krings, Alexander</mods:namePart>
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<mods:affiliation>Herbarium, Department of Plant Biology, North Carolina State University, Raleigh, NC 27695 - 7612, USA</mods:affiliation>
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<mods:nameIdentifier type="email">alexander_krings@ncsu.edu</mods:nameIdentifier>
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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>Morillo, Gilberto</mods:namePart>
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<mods:affiliation>Herbario Carlos Liscano, Facultad de Ciencias Forestales y Ambientales, Universidad de Los Andes, Merida 5101 - A, Venezuela</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>2012-09-26</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>27</mods:start>
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<mods:end>39</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.17.3485</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.17.3485</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-17-27</mods:identifier>
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<mods:identifier type="Pensoft-UUID">13085151FF8A1166AA41FFE7FFEC1914</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576141</mods:identifier>
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</mods:mods>
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<subSection lastPageId="6" lastPageNumber="33" pageId="4" pageNumber="31" type="multiple">
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<treatment ID-GBIF-Taxon="152024397" LSID="urn:lsid:plazi:treatment:0CF13D8BBE53921F34403E57B0B5E4BD" httpUri="http://treatment.plazi.org/id/0CF13D8BBE53921F34403E57B0B5E4BD" lastPageId="6" lastPageNumber="32" pageId="4" pageNumber="31">
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<subSubSection pageId="4" pageNumber="31" type="nomenclature">
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<paragraph pageId="4" pageNumber="31">
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<taxonomicName LSID="0CF13D8B-BE53-921F-3440-3E57B0B5E4BD" authority="Krings & Morillo" authorityName="Krings & Morillo" authorityYear="2012" class="Magnoliopsida" family="Apocynaceae" genus="Matelea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Matelea trichopedicellata" order="Gentianales" pageId="4" pageNumber="31" phylum="Magnoliophyta" rank="species" species="trichopedicellata" status="sp. nov.">Matelea trichopedicellata Krings & Morillo</taxonomicName>
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<taxonomicNameLabel pageId="4" pageNumber="31">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Abaxial corolla surface in the adaxially-pubescent-flowered members of the Matelea stenopetala complex. A Matelea trichopedicellata (based on Daly et al. 1619, US) B Matelea hildegardiana (based on Liesner 23469, U) C Matelea pakaraimensis (based on Mutchnik 122, US) D Matelea brevistipitata (based on Boom 9318, VEN) E Matelea stenopetala (based on Ek et al. 881, U) F Matelea stenopetala (based on Mori et al. 24547, US); Note difference in pubescence type between A-B (eglandular trichomes shown at arrows) and C-F (glandular capitate trichomes shown at arrows)." httpUri="https://binary.pensoft.net/fig/10179" pageId="4" pageNumber="31">Figures 1A</figureCitation>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Gynostegial variation in the adaxially-pubescent-flowered members of the Matelea stenopetala complex. A Matelea trichopedicellata: i, flower, ii, coarsely pubescent pedicel, trichomes ca. 0.3 mm long (based on Daly et al. 1619, US) B Matelea hildegardiana (based on Davidse 4903, U) C Matelea pakaraimensis (based on Mutchnik 122, US) D Matelea brevistipitata (based on Boom 9318, VEN) E Matelea stenopetala (based on Ek et al. 881, U) F Matelea stenopetala (based on Mori et al. 24547, US). Note coronas at base of gynostegial columns sessile in A-C and raised off the surface of the corolla by a subtending stipe in D-F." httpUri="https://binary.pensoft.net/fig/10180" pageId="4" pageNumber="31">2A</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Foliar variation in some adaxially-pubescent-flowered members of the Matelea stenopetala complex. A Matelea trichopedicellata (based on Daly et al. 1619, US) B Matelea hildegardiana (based on Davidse 4903, US) C Matelea brevistipitata (based on Boom 9318, VEN) D Matelea stenopetala (based on Ek et al. 881, U)." httpUri="https://binary.pensoft.net/fig/10181" pageId="4" pageNumber="31">3A</figureCitation>
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Illustration of the leaves, inflorescences, and flowers of Matelea brevistipitata and Matelea trichopedicellata. A Matelea brevistipitata (based on B. Stergios 12315, NY) B Matelea trichopedicellata (based on Daly et al. 1619, US). Scale bars are 4 cm (Ai & Bi) and 0.4 mm (Aii & Bii)." httpUri="https://binary.pensoft.net/fig/10182" pageId="4" pageNumber="31">4B</figureCitation>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Holotype of Matelea trichopedicellata (Daly et al. 1619, NY). Courtesy of the New York Botanical Garden." httpUri="https://binary.pensoft.net/fig/10184" pageId="4" pageNumber="31">6</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="31" type="latin">
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<paragraph pageId="4" pageNumber="31">Latin.</paragraph>
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<paragraph pageId="4" pageNumber="31">
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<emphasis italics="true" pageId="4" pageNumber="31">A new species in the Matelea stenopetala complex, most similar to M. hildegardiana, but differing in part by leaf bases broadly cuneate to rounded (vs. attenuate to narrowly cuneate in M. hildegardiana), pedicels coarsely pubescent, with only glandular capitate trichomes ubiquitous, eglandular trichomes not ubiquitous, rather in two lines, ca. 0.3 mm long (vs. both glandular capitate and eglandular trichomes ubiquitous, eglandular trichomes to 0.07 mm long in M. hildegardiana), and corollas rose, lobes 4.1-4.2 mm long (vs. corolla green, lobes 4.9-5.5 mm long in M. hildegardiana)</emphasis>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="31" type="type">
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<paragraph pageId="4" pageNumber="31">Type.</paragraph>
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<paragraph pageId="4" pageNumber="31">
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<emphasis bold="true" pageId="4" pageNumber="31">BRAZIL</emphasis>
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.
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<normalizedToken originalValue="PARÁ">PARA</normalizedToken>
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: Rio Tocantins near
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<normalizedToken originalValue="Igarapé">Igarape</normalizedToken>
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Cajazeirinha, approx. 30 km N of Itupiranga,
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<geoCoordinate degrees="4" direction="south" minutes="1" orientation="latitude" precision="925" value="-4.016667">4°1'S</geoCoordinate>
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,
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<geoCoordinate degrees="49" direction="west" minutes="21" orientation="longitude" precision="925" value="-49.35">49°21W</geoCoordinate>
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, 1 Dec 1981 (fl & fr),
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<emphasis italics="true" pageId="4" pageNumber="31">D.C. Daly, R. Callejas, M.G. da Silva, E.L. Taylor, C. Rosario, & M.R. dos Santos 1619</emphasis>
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(Holotype: NY!; Isotype: US!, MG, n.v., MO, n.v.).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="32" pageId="4" pageNumber="31" type="description">
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<paragraph pageId="4" pageNumber="31">Description.</paragraph>
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<paragraph lastPageId="5" lastPageNumber="32" pageId="4" pageNumber="31">
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<emphasis italics="true" pageId="4" pageNumber="31">Slender, woody vine</emphasis>
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.
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<emphasis italics="true" pageId="4" pageNumber="31">Stems</emphasis>
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moderately to densely pubescent, pubescence in two lines, eglandular trichomes coarse, retrorse, ca. 0. 4 mm long, glandular capitate trichomes sparse, spreading, ca. 0.05 mm long.
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<emphasis italics="true" pageId="4" pageNumber="31">Leaf</emphasis>
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blades narrowly to broadly elliptic, 5.7-7.8
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<normalizedToken originalValue="×">x</normalizedToken>
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2.0-4.5 cm, with 5-8 pairs of lateral veins, adaxial surface
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<pageBreakToken pageId="5" pageNumber="32" start="start">glabrous</pageBreakToken>
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, midvein glabrous or pubescent, eglandular trichomes antrorse or spreading, ca. 0.3 mm long, glandular capitate trichomes spreading, ca. 0.05-0.07 mm long, abaxial surface glabrous, midvein glabrous or pubescent, eglandular trichomes antrorse or spreading, ca. 0.3 mm long, glandular capitate trichomes spreading, ca. 0.05-0.07 mm long, apices acuminate, bases broadly cuneate to rounded, margins entire, colleters 2-4, lanceolate, 0.3-0.4 mm long; petioles 0.9-1.3 cm long, moderately pubescent, pubescence ubiquitous, eglandular trichomes mostly restricted to the adaxial ridge, spreading to antrorse-spreading, ca. 0.4 mm long, glandular capitate trichomes spreading, 0.05-0.07 mm long.
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<emphasis italics="true" pageId="5" pageNumber="32">Inflorescence</emphasis>
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racemiform, apparently 1-2-flowered (1 flower open at a time); peduncles to 2.4 mm long, moderately pubescent, pubescence ubiquitous, eglandular trichomes antrorse or spreading, 0.2-0.25 mm long, glandular capitate trichomes spreading, 0.05-0.07 mm long; pedicels 4.4-5.2 mm long, moderately to densely pubescent, eglandular trichomes in two lines, spreading, ca. 0.3 mm long, glandular capitate trichomes ubiquitous, spreading, ca. 0.05-0.07 mm long.
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<emphasis italics="true" pageId="5" pageNumber="32">Calyx</emphasis>
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lobes lanceolate, reflexed or spreading, 1.4-1.7
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<normalizedToken originalValue="×">x</normalizedToken>
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0.4-0.6 mm, adaxial surface glabrous, abaxial surface moderately to densely pubescent, eglandular trichomes antrorse or spreading, ca. 0.18 mm long, glandular capitate trichomes absent or very sparse, spreading when present, ca. 0.06 mm long, apices obtuse, margins entire; colleters 1 per sinus, lanceolate, ca. 0.18 mm tall.
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<emphasis italics="true" pageId="5" pageNumber="32">Corolla</emphasis>
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rose (fide collectoris), subcampanulate at base, tube ca. 0.9
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<normalizedToken originalValue="×">x</normalizedToken>
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0.9 mm, lobes imbricate in bud, linear-lanceolate to oblong, spreading, 4.1-4.2
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<normalizedToken originalValue="×">x</normalizedToken>
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1.9-2.0 mm, not ocellate, marginally or laterally recurved, adaxial surface pubescent, eglandular trichomes spreading, ca. 0.06-0.08 mm long, glandular-capitate trichomes absent, abaxial surface moderately pubescent, eglandular trichomes antrorse, 0.15-0.18 mm long, glandular capitate trichomes absent or very sparse, spreading when present, 0.03-0.04 mm long, apices obtuse, margins entire.
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<emphasis italics="true" pageId="5" pageNumber="32">Faucal annulus</emphasis>
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(corolline corona or Ca) absent.
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<emphasis italics="true" pageId="5" pageNumber="32">Gynostegial corona</emphasis>
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of fused staminal (Cs) and interstaminal (Ci) parts, C(is) on the surface of the corolla lobes, not subtended by a stipe, margin crenulate-lobate, Cs rising to meet the lower portion of the anther, rising segment more or less perpendicular relative to the base, ca. 0.4 mm tall, margin entire, base somewhat swollen, crenulate-lobate, ligule an apical ridge, not free, Ci unlobed, not ligulate.
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<emphasis italics="true" pageId="5" pageNumber="32">Style-head</emphasis>
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1.6-1.7 mm diam, stipe 0.45-0.65 mm tall, terminal style-head appendage absent.
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<emphasis italics="true" pageId="5" pageNumber="32">Pollinarium</emphasis>
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: corpuscula ca. 0.18 mm long, caudicles present, pollinia narrowly ovoid, ca. 0.45
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<normalizedToken originalValue="×">x</normalizedToken>
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0.2 mm.
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<emphasis italics="true" pageId="5" pageNumber="32">Follicles</emphasis>
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ovoid-fusiform (imm), ca. 6 x 1.3 cm.
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<emphasis italics="true" pageId="5" pageNumber="32">Seeds</emphasis>
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unknown.
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</paragraph>
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<caption httpUri="https://binary.pensoft.net/fig/10184" pageId="5" pageNumber="32" start="Figure 6" startId="F6">
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<paragraph pageId="5" pageNumber="32">
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<emphasis bold="true" pageId="5" pageNumber="32">Figure 6.</emphasis>
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Holotype of
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<taxonomicName authorityName="Krings & Morillo" authorityYear="2012" class="Magnoliopsida" family="Apocynaceae" genus="Matelea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Gentianales" pageId="5" pageNumber="32" phylum="Magnoliophyta" rank="species" species="trichopedicellata">
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<emphasis italics="true" pageId="5" pageNumber="32">Matelea trichopedicellata</emphasis>
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</taxonomicName>
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(
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<emphasis italics="true" pageId="5" pageNumber="32">Daly et al. 1619</emphasis>
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, NY). Courtesy of the New York Botanical Garden.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="32" type="distribution">
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<paragraph pageId="5" pageNumber="32">Distribution.</paragraph>
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<paragraph pageId="5" pageNumber="32">
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Known only from the type, collected in the Brazilian Amazon, near
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<normalizedToken originalValue="Igarapé">Igarape</normalizedToken>
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Cajazeirinha.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="32" type="ecology">
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<paragraph pageId="5" pageNumber="32">Ecology.</paragraph>
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<paragraph pageId="5" pageNumber="32">Currently known only from terra firme forest.</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="32" type="phenology">
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<paragraph pageId="5" pageNumber="32">Phenology.</paragraph>
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<paragraph pageId="5" pageNumber="32">Collected in flower and fruit (imm) in December.</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="32" type="etymology">
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<paragraph pageId="5" pageNumber="32">Etymology.</paragraph>
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<paragraph pageId="5" pageNumber="32">The specific epithet refers to the conspicuously pubescent pedicels.</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="32" type="conservation status">
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<paragraph pageId="5" pageNumber="32">Conservation status.</paragraph>
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<paragraph pageId="5" pageNumber="32">Currently, very little is known regarding the status of this species.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="33" pageId="5" pageNumber="32" type="discussion">
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<paragraph pageId="5" pageNumber="32">Discussion.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="33" pageId="5" pageNumber="32">
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<taxonomicName authorityName="Krings & Morillo" authorityYear="2012" class="Magnoliopsida" family="Apocynaceae" genus="Matelea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Gentianales" pageId="5" pageNumber="32" phylum="Magnoliophyta" rank="species" species="trichopedicellata">
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<emphasis italics="true" pageId="5" pageNumber="32">Matelea trichopedicellata</emphasis>
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</taxonomicName>
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shares with
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<taxonomicName authorityName="G. Morillo" authorityYear="1988" class="Magnoliopsida" family="Apocynaceae" genus="Matelea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Gentianales" pageId="5" pageNumber="32" phylum="Magnoliophyta" rank="species" species="hildegardiana">
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<emphasis italics="true" pageId="5" pageNumber="32">Matelea hildegardiana</emphasis>
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</taxonomicName>
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(apparently endemic to the Gran Sabana,
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<normalizedToken originalValue="Bolívar">Bolivar</normalizedToken>
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, Venezuela), pubescent abaxial and adaxial corolla surfaces, but differs from it in part by leaf bases broadly cuneate to rounded and coroll
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<pageBreakToken pageId="6" pageNumber="33" start="start">a</pageBreakToken>
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lobes rose, 4.1-4.2 mm long (leaf bases attenuate to narrowly cuneate, and corolla lobes green, 4.9-5.5 mm long in
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<taxonomicName authorityName="G. Morillo" authorityYear="1988" class="Magnoliopsida" family="Apocynaceae" genus="Matelea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Gentianales" pageId="6" pageNumber="33" phylum="Magnoliophyta" rank="species" species="hildegardiana">
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<emphasis italics="true" pageId="6" pageNumber="33">Matelea hildegardiana</emphasis>
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</taxonomicName>
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).
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<taxonomicName authorityName="Krings & Morillo" authorityYear="2012" class="Magnoliopsida" family="Apocynaceae" genus="Matelea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Gentianales" pageId="6" pageNumber="33" phylum="Magnoliophyta" rank="species" species="trichopedicellata">
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<emphasis italics="true" pageId="6" pageNumber="33">Matelea trichopedicellata</emphasis>
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</taxonomicName>
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and
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<taxonomicName authorityName="G. Morillo" authorityYear="1988" class="Magnoliopsida" family="Apocynaceae" genus="Matelea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Gentianales" pageId="6" pageNumber="33" phylum="Magnoliophyta" rank="species" species="hildegardiana">
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<emphasis italics="true" pageId="6" pageNumber="33">Matelea hildegardiana</emphasis>
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</taxonomicName>
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both exhibit eglandular trichomes on the abaxial corolla lobe surface in which the lowest cell is usually filled with a green or dark substance. The upper cells of the trichomes are usually translucent.
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</paragraph>
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</subSubSection>
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</treatment>
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</subSection>
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</document> |