194 lines
16 KiB
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194 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.91.21340" ID-GBIF-Dataset="b2f4c8d9-09a5-4bee-9ac6-b264ba0e3eed" ID-PMC="PMC5769713" ID-Pensoft-Pub="1314-2003-91-105" ID-Pensoft-UUID="957354088108FFA2FFB72519DE2E8D07" ID-PubMed="29362548" ID-Zenodo-Dep="1138363" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1314-2003-91-105" ModsDocOrigin="PhytoKeys 91" ModsDocTitle="Nahuatlea: a new genus of compositae (Gochnatieae) from North America" checkinTime="1513622630636" checkinUser="pensoft" docAuthor="Funk, Vicki A., Sancho, Gisela & Roque, Nadia" docDate="2017" docId="5EAAEF43924DB62B0FD885FD189CEE6A" docLanguage="en" docName="PhytoKeys 91: 105-124" docOrigin="PhytoKeys 91" docSource="http://dx.doi.org/10.3897/phytokeys.91.21340" docTitle="Nahuatlea obtusata V. A. Funk 2017, comb. nov." docType="treatment" docVersion="6" id="957354088108FFA2FFB72519DE2E8D07" lastPageNumber="116" masterDocId="957354088108FFA2FFB72519DE2E8D07" masterDocTitle="Nahuatlea: a new genus of compositae (Gochnatieae) from North America" masterLastPageNumber="124" masterPageNumber="105" pageNumber="115" updateTime="1668142139019" 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>Nahuatlea: a new genus of compositae (Gochnatieae) from North America</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>Funk, Vicki A.</mods:namePart>
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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>Sancho, Gisela</mods:namePart>
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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>Roque, Nadia</mods:namePart>
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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>2017</mods:date>
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<mods:detail type="volume">
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<mods:number>91</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>105</mods:start>
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<mods:end>124</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.91.21340</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.91.21340</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-91-105</mods:identifier>
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<mods:identifier type="Pensoft-UUID">957354088108FFA2FFB72519DE2E8D07</mods:identifier>
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<mods:identifier type="Zenodo-Dep">1138363</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="139337058" LSID="urn:lsid:plazi:treatment:5EAAEF43924DB62B0FD885FD189CEE6A" httpUri="http://treatment.plazi.org/id/5EAAEF43924DB62B0FD885FD189CEE6A" lastPageId="13" lastPageNumber="116" pageId="10" pageNumber="115">
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<subSubSection pageId="10" pageNumber="115" type="nomenclature">
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<paragraph pageId="10" pageNumber="115">
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5.
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<taxonomicName LSID="00AA1569-48CD-50FA-8646-ABEBEEE1BC64" authority="(S. F. Blake) V. A. Funk" authorityName="V. A. Funk" authorityYear="2017" baseAuthorityName="S. F. Blake" baseAuthorityYear="2017" class="Magnoliopsida" family="Compositae" genus="Nahuatlea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Nahuatlea obtusata" order="Asterales" pageId="10" pageNumber="115" phylum="Tracheophyta" rank="species" species="obtusata" status="comb. nov.">Nahuatlea obtusata (S.F. Blake) V.A.Funk</taxonomicName>
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<taxonomicNameLabel pageId="10" pageNumber="115">comb. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Images of four type specimens: A Nahuatlea arborescens (UC holotype) B N. smithii (K lectotype) C N. obtusata (US holotype) D N. hypoleuca (G holotype). [Furnished by the respective herbaria.]" figureDoi="10.3897/phytokeys.91.21340.figure3" httpUri="https://binary.pensoft.net/fig/174646" pageId="10" pageNumber="115">Figs 3D</figureCitation>
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Cabrera's drawing of Nahuatlea hypoleuca. A Habit B Head C Floret D Style E Anther F Pubescence. [Modified from Cabrera 1971.]" figureDoi="10.3897/phytokeys.91.21340.figure7" httpUri="https://binary.pensoft.net/fig/174650" pageId="10" pageNumber="115">, 7</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="116" type="reference_group">
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<paragraph pageId="11" pageNumber="116">
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<taxonomicName authorityName="S. F. Blake" authorityYear="1924" class="Magnoliopsida" family="Compositae" genus="Gochnatia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Gochnatia obtusata" order="Asterales" pageId="11" pageNumber="116" phylum="Tracheophyta" rank="species" species="obtusata">
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<pageBreakToken pageId="11" pageNumber="116" start="start">Gochnatia</pageBreakToken>
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obtusata
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</taxonomicName>
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S.F. Blake, Contributions from the United States National Herbarium 22: 652. 1924.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="116" type="materials_examined">
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<paragraph pageId="11" pageNumber="116">Type.</paragraph>
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<paragraph pageId="11" pageNumber="116">
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Mexico. Puebla: dry limestone hills at Tehuacan, 20 Dec 1895,
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<emphasis italics="true" pageId="11" pageNumber="116">C.G. Pringle 6253</emphasis>
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(Holotype: US 00119530 [254705]; Isotypes: A 00008380, BM 000947903, BR 0000005318124, CM 2403, E 00413002, JE 00000693, K 000502539, GH 00008381, MEXU 01220107, MO 1544305, NDG 63791, NY 00169557, P 00703351, P 00703352, PH 00025961, S 10-11705, TEX 00000454, US 01100608). [
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<bibRefCitation author="Cabrera, A" journalOrPublisher="Revista del Museo de la Plata, Seccion Botanica" pageId="16" pageNumber="121" pagination="1 - 160" refId="B4" refString="Cabrera, A, 1971. Revision del Genero Gochnatia. Revista del Museo de la Plata, Seccion Botanica 12 (66): 1 - 160" title="Revision del Genero Gochnatia." volume="12" year="1971">Cabrera (1971)</bibRefCitation>
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mentions additional specimens at F, G, M, UC, and W but these were not found in JSTOR-GP.]
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="116" type="description">
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<paragraph pageId="11" pageNumber="116">Description.</paragraph>
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<paragraph pageId="11" pageNumber="116">
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<emphasis italics="true" pageId="11" pageNumber="116">Shrub</emphasis>
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1.0
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<normalizedToken originalValue="–1.5(–">-1.5(-</normalizedToken>
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2.6) m tall;
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<emphasis italics="true" pageId="11" pageNumber="116">leaves</emphasis>
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coriaceous, (4.5)5-8(20)
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<normalizedToken originalValue="×">x</normalizedToken>
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3-5 mm, broadly elliptic, apex rounded to obtuse, rounded at base, glabrous adaxially, cinereous-tomentose abaxially; heads short-pedunculate (ca. 2 mm long), in clusters of 10-20 heads, at apices of branches;
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<emphasis italics="true" pageId="11" pageNumber="116">involucre</emphasis>
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narrowly obconic, 6-8 mm tall
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<normalizedToken originalValue="×">x</normalizedToken>
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2.8-3.2 mm wide, bracts in ca. 5 series, glabrous;
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<emphasis italics="true" pageId="11" pageNumber="116">flowers</emphasis>
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5-6 per head; corollas white, 6.5-7.5 mm long;
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<emphasis italics="true" pageId="11" pageNumber="116">anther</emphasis>
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base caudate, tails ca. 2 mm long, fimbrillate;
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<emphasis italics="true" pageId="11" pageNumber="116">pappus</emphasis>
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6.0-7.5 mm long, bristles biseriate, broadening slightly at the tips.
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</paragraph>
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<paragraph pageId="11" pageNumber="116">
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<bibRefCitation author="Jervis, RN" journalOrPublisher="8. Eudicots-Asterales. Springer-Verlag, Berlin, Heidelberg" pageId="16" pageNumber="121" refId="B12" refString="Jervis, RN, 1954. A summary of the genus Gochnatia including a revision of the West Indian species which comprise the Section Anastraphioides. University of Michigan: unpublished thesis." title="A summary of the genus Gochnatia including a revision of the West Indian species which comprise the Section Anastraphioides. University of Michigan: unpublished thesis." year="1954">Jervis (1954)</bibRefCitation>
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said that the leaf length is "rarely up to 2 cm" and the width is "less than 1 cm" and
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<bibRefCitation author="Cabrera, A" journalOrPublisher="Revista del Museo de la Plata, Seccion Botanica" pageId="16" pageNumber="121" pagination="1 - 160" refId="B4" refString="Cabrera, A, 1971. Revision del Genero Gochnatia. Revista del Museo de la Plata, Seccion Botanica 12 (66): 1 - 160" title="Revision del Genero Gochnatia." volume="12" year="1971">Cabrera (1971)</bibRefCitation>
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lists the length as 4-20
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<normalizedToken originalValue="×">x</normalizedToken>
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3-13 mm. Both seem to be correct; we found only one specimen that had leaves 20 mm long and all but two were less than 1 cm.
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</paragraph>
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<caption ID-Zenodo-Dep="1138377" doi="10.3897/phytokeys.91.21340.figure7" httpUri="https://binary.pensoft.net/fig/174650" pageId="11" pageNumber="116" start="Figure 7" startId="F7">
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<paragraph pageId="11" pageNumber="116">
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<emphasis bold="true" pageId="11" pageNumber="116">Figure 7.</emphasis>
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<normalizedToken originalValue="Cabrera’s">Cabrera's</normalizedToken>
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drawing of
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<taxonomicName authorityName="V. A. Funk" authorityYear="2017" baseAuthorityName="V. A. Funk" baseAuthorityYear="2017" class="Magnoliopsida" family="Compositae" genus="Nahuatlea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Nahuatlea hypoleuca" order="Asterales" pageId="11" pageNumber="116" phylum="Tracheophyta" rank="species" species="hypoleuca">
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<emphasis italics="true" pageId="11" pageNumber="116">Nahuatlea hypoleuca</emphasis>
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</taxonomicName>
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.
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<emphasis bold="true" pageId="11" pageNumber="116">A</emphasis>
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Habit
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<emphasis bold="true" pageId="11" pageNumber="116">B</emphasis>
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Head
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<emphasis bold="true" pageId="11" pageNumber="116">C</emphasis>
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Floret
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<emphasis bold="true" pageId="11" pageNumber="116">D</emphasis>
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Style
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<emphasis bold="true" pageId="11" pageNumber="116">E</emphasis>
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Anther
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<emphasis bold="true" pageId="11" pageNumber="116">F</emphasis>
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Pubescence. [Modified from
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<bibRefCitation author="Cabrera, A" journalOrPublisher="Revista del Museo de la Plata, Seccion Botanica" pageId="16" pageNumber="121" pagination="1 - 160" refId="B4" refString="Cabrera, A, 1971. Revision del Genero Gochnatia. Revista del Museo de la Plata, Seccion Botanica 12 (66): 1 - 160" title="Revision del Genero Gochnatia." volume="12" year="1971">Cabrera 1971</bibRefCitation>
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.]
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="116" type="distribution">
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<paragraph pageId="11" pageNumber="116">Distribution.</paragraph>
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<paragraph pageId="11" pageNumber="116">Mexico: Puebla and Oaxaca.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="13" lastPageNumber="118" pageId="11" pageNumber="116" type="remarks">
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<paragraph pageId="11" pageNumber="116">Remarks.</paragraph>
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<paragraph lastPageId="13" lastPageNumber="118" pageId="11" pageNumber="116">
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<taxonomicName authorityName="S. F. Blake" authorityYear="1924" class="Magnoliopsida" family="Asteraceae" genus="Gochnatia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Gochnatia obtusata" order="Asterales" pageId="11" pageNumber="116" phylum="Tracheophyta" rank="species" species="obtusata">
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<emphasis italics="true" pageId="11" pageNumber="116">Gochnatia obtusata</emphasis>
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</taxonomicName>
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was described by S. F.
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<bibRefCitation author="Blake, SF" journalOrPublisher="Contributions from the United States National Herbarium" pageId="16" pageNumber="121" pagination="587 - 661" publicationUrl="https://biodiversitylibrary.org/page/381906" refId="B1" refString="Blake, SF, 1924. New American Asteraceae. Contributions from the United States National Herbarium 22 (8): 587 - 661, https://biodiversitylibrary.org/page/381906" title="New American Asteraceae." url="https://biodiversitylibrary.org/page/381906" volume="22" year="1924">Blake (1924)</bibRefCitation>
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and accepted as a good species by
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<bibRefCitation author="Jervis, RN" journalOrPublisher="8. Eudicots-Asterales. Springer-Verlag, Berlin, Heidelberg" pageId="16" pageNumber="121" refId="B12" refString="Jervis, RN, 1954. A summary of the genus Gochnatia including a revision of the West Indian species which comprise the Section Anastraphioides. University of Michigan: unpublished thesis." title="A summary of the genus Gochnatia including a revision of the West Indian species which comprise the Section Anastraphioides. University of Michigan: unpublished thesis." year="1954">Jervis (1954)</bibRefCitation>
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. Cabrera placed it as a subspecies of
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<taxonomicName lsidName="G. hypoleuca" pageId="11" pageNumber="116" rank="species" species="hypoleuca">
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<emphasis italics="true" pageId="11" pageNumber="116">G. hypoleuca</emphasis>
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</taxonomicName>
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as did
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<bibRefCitation DOI="https://doi.org/10.2307/3298594" author="Freire, SE" journalOrPublisher="Annals of the Missouri Botanical Garden" pageId="16" pageNumber="121" pagination="525 - 550" refId="B7" refString="Freire, SE, Katinas, L, Sancho, G, 2002. Gochnatia (Asteraceae: Mutisieae) and the Gochnatia complex: taxonomic implications from morphology. Annals of the Missouri Botanical Garden 89 (4): 525 - 550, DOI: https://doi.org/10.2307/3298594" title="Gochnatia (Asteraceae: Mutisieae) and the Gochnatia complex: taxonomic implications from morphology." url="https://doi.org/10.2307/3298594" volume="89" year="2002">Freire et al. (2002)</bibRefCitation>
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. The difference of opinion is based on the importance one gives to the characters that separate the two entities. Blake stated that
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<taxonomicName lsidName="G. hypoleuca" pageId="11" pageNumber="116" rank="species" species="hypoleuca">
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<emphasis italics="true" pageId="11" pageNumber="116">G. hypoleuca</emphasis>
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</taxonomicName>
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could be separated from
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<taxonomicName lsidName="G. obtusata" pageId="11" pageNumber="116" rank="species" species="obtusata">
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<emphasis italics="true" pageId="11" pageNumber="116">G. obtusata</emphasis>
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</taxonomicName>
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by the following characters: leaves chiefly elliptic, apex acute or acutish and mucronate, 20-50 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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8-15 mm; involucre 5-6 mm tall, phyllaries obtuse to acute or obtusely acuminate. We have added some additional characters: shrub or small tree 3-7 m; heads arranged in short clusters or panicles; involucre with
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<pageBreakToken pageId="12" pageNumber="117" start="start">bracts</pageBreakToken>
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in 3-5 series; corolla 10-12 mm long; style branches 0.7-1 mm long; pappus up to 6.5 mm. In contrast,
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<taxonomicName lsidName="G. obtusata" pageId="12" pageNumber="117" rank="species" species="obtusata">
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<emphasis italics="true" pageId="12" pageNumber="117">G. obtusata</emphasis>
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</taxonomicName>
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has the following: leaves broadly elliptic, apex broadly rounded to obtuse, not mucronate, 4.5-20 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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3-13 mm; involucre 6.5-7.5 mm tall, involucral bracts acute to sharply acuminate; style branches 0.5-0.7 mm long. Additional characters for
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<taxonomicName lsidName="G. obtusata" pageId="12" pageNumber="117" rank="species" species="obtusata">
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<emphasis italics="true" pageId="12" pageNumber="117">G. obtusata</emphasis>
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</taxonomicName>
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include: shrub of 1.0-2.6 m; heads glomerate at tips of branches and in clusters of 1-several in the subterminal axils; involucre with bracts in 5-6 series; corollas 6.5-7.5 mm long; pappus up to 7.5 mm long. In the field
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<pageBreakToken pageId="13" pageNumber="118" start="start">the</pageBreakToken>
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difference is striking with the larger more robust
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<taxonomicName lsidName="G. hypoleuca" pageId="13" pageNumber="118" rank="species" species="hypoleuca">
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<emphasis italics="true" pageId="13" pageNumber="118">G. hypoleuca</emphasis>
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</taxonomicName>
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contrasting with the smaller, more compact
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<taxonomicName lsidName="G. obtusata" pageId="13" pageNumber="118" rank="species" species="obtusata">
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<emphasis italics="true" pageId="13" pageNumber="118">G. obtusata</emphasis>
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</taxonomicName>
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. Therefore we have chosen to recognize
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<taxonomicName lsidName="G. obtusata" pageId="13" pageNumber="118" rank="species" species="obtusata">
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<emphasis italics="true" pageId="13" pageNumber="118">G. obtusata</emphasis>
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</taxonomicName>
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as a separate species.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |