138 lines
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138 lines
10 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.15.3084" ID-PMC="PMC3492929" ID-Pensoft-Pub="1314-2003-15-1" ID-Pensoft-UUID="FF9AC356FFDAFB26FF95FFE3FFA1520C" ID-PubMed="23185125" ID-Zenodo-Dep="576134" ModsDocID="1314-2003-15-1" checkinTime="1451251993896" checkinUser="pensoft" docAuthor="Soreng, Robert J. & Peterson, Paul M." docDate="2012" docId="333FDBBA3F565818BD0F4BC1F9B027E2" docLanguage="en" docName="PhytoKeys 15: 1-104" docOrigin="PhytoKeys 15" docPubDate="2012-08-06" docSource="http://dx.doi.org/10.3897/phytokeys.15.3084" docTitle="Poa pratensis subsp. angustifolia (L.) Lej., Comp. Fl. Belg. 82. 1828." docType="treatment" docVersion="3" id="FF9AC356FFDAFB26FF95FFE3FFA1520C" lastPageNumber="48" masterDocId="FF9AC356FFDAFB26FF95FFE3FFA1520C" masterDocTitle="Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii" masterLastPageNumber="104" masterPageNumber="1" pageNumber="47" updateTime="1668139833991" 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>Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii</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>Soreng, Robert J.</mods:namePart>
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<mods:affiliation>Department of Botany, National Museum of Natural History, Smithsonian Institution Washington, DC, 20013 - 7012, USA</mods:affiliation>
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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>Peterson, Paul M.</mods:namePart>
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<mods:affiliation>Department of Botany, National Museum of Natural History, Smithsonian Institution Washington, DC, 20013 - 7012, USA</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>2012-08-06</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>15</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>104</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.15.3084</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.15.3084</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-15-1</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FF9AC356FFDAFB26FF95FFE3FFA1520C</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576134</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="182229305" LSID="urn:lsid:plazi:treatment:333FDBBA3F565818BD0F4BC1F9B027E2" httpUri="http://treatment.plazi.org/id/333FDBBA3F565818BD0F4BC1F9B027E2" lastPageId="47" lastPageNumber="48" pageId="46" pageNumber="47">
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<subSubSection pageId="46" pageNumber="47" type="nomenclature">
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<paragraph pageId="46" pageNumber="47">
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16c.
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<taxonomicName LSID="333FDBBA-3F56-5818-BD0F-4BC1F9B027E2" authority="(L.) Lej., Comp. Fl. Belg. 82. 1828." authorityName="(L.) Lej., Comp. Fl. Belg. 82. 1828." class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa pratensis subsp. angustifolia" order="Poales" pageId="46" pageNumber="47" phylum="Tracheophyta" rank="subSpecies" species="pratensis" subSpecies="angustifolia">Poa pratensis angustifolia (L.) Lej., Comp. Fl. Belg. 82. 1828.</taxonomicName>
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<figureCitation captionStart="Figure 17" captionStartId="F17" captionText="Figure 17. Poa pratensis L. A-C Poa pratensis subsp. agassizensis (B. Boivin & D. Loeve) Roy L. Taylor & MacBryde A habit B sheath, ligule, blade lateral view C branch segment with spikelets D-G subsp. alpigena (Lindm.) Hiitonen D habit E inflorescence F branch segment with spikelets G palea H, I subsp. angustifolia (L.) Lej. H habit I branch segment with spikelets. Drawings from Soreng (2007)." httpUri="https://binary.pensoft.net/fig/10152" pageId="46" pageNumber="47">Fig. 17 H, I</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="46" pageNumber="47" type="reference_group">
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<paragraph pageId="46" pageNumber="47">
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Poales" pageId="46" pageNumber="47" phylum="Tracheophyta" rank="species" species="angustifolia">Poa angustifolia</taxonomicName>
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L., Sp. Pl. 1: 67. 1753. (lectotype: LINN-87.12!, excluding second culm from the left, designated by
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<bibRefCitation author="Soreng, RJ" journalOrPublisher="Taxon" pageId="69" pageNumber="70" pagination="239 - 260" refId="B47" refString="Soreng, RJ, 2000. Poa lectotypifications In: Cafferty S, Jarvis CE, Turland NJ. Typification of Linnaean plant names in the Poaceae (Gramineae). Taxon 49 (2): 239 - 260" title="Poa lectotypifications In: Cafferty S, Jarvis CE, Turland NJ. Typification of Linnaean plant names in the Poaceae (Gramineae)." volume="49" year="2000">Soreng 2000</bibRefCitation>
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: 254).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="46" pageNumber="47" type="description">
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<paragraph pageId="46" pageNumber="47">Description.</paragraph>
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<paragraph pageId="46" pageNumber="47">
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Tufts sparse to dense, some shoots clustered; pale green or bluish-gray-green; tillers intra- and extravaginal.
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<emphasis bold="true" pageId="46" pageNumber="47">Culms</emphasis>
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25-80 cm tall.
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<emphasis bold="true" pageId="46" pageNumber="47">Ligules</emphasis>
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of lower culm and tiller leaves commonly glabrous abaxially; blades of cauline leaves flag leaf blades folded or involute, with involute margins, moderately thick or thin, moderately thin or soft; sterile shoot blades 10-45 cm long, 0.4-1 mm wide, all involute, like or often distinctly narrower than cauline blades, sparsely pubescent adaxially.
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<emphasis bold="true" pageId="46" pageNumber="47">Panicles</emphasis>
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8-18 cm long, loosely contracted, or open and narrowly pyramidal; rachis with 3-6 branches per node; primary branches ascending to spreading, smooth, or sparsely to densely scabrous; spikelets several to many per branch.
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<emphasis bold="true" pageId="46" pageNumber="47">Spikelets</emphasis>
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narrowly lanceolate, not bulbiferous; glumes unequal, infrequently glaucous; lower glumes 1(-3)-veined; upper glumes shorter than or subequaling the lowest lemma; lemmas 2.5-3.5 mm long, finely muriculate, intermediate veins glabrous; paleas scabrous, medially glabrous over the keels, intercostal region glabrous. 2
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<emphasis italics="true" pageId="46" pageNumber="47">n</emphasis>
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= 28, 46, 48, 49-54, 56, 57, 59-66, 72.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="46" pageNumber="47" type="distribution">
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<paragraph pageId="46" pageNumber="47">Distribution.</paragraph>
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<paragraph pageId="46" pageNumber="47">
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This subspecies is native to Eurasia. It is introduced in North America where it is known from Canada, USA, and in Mexico (San Luis
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<normalizedToken originalValue="Potosí">Potosi</normalizedToken>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="46" pageNumber="47" type="ecology">
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<paragraph pageId="46" pageNumber="47">Ecology.</paragraph>
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<paragraph pageId="46" pageNumber="47">
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The subspecies isintroduced and sometimes is included in pasture grass seed mixes, it tolerates drought better than other subspecies except perhaps subsp.
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<emphasis italics="true" pageId="46" pageNumber="47">agassizensis</emphasis>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="46" pageNumber="47" type="specimens examined">
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<paragraph pageId="46" pageNumber="47">Specimens examined.</paragraph>
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<paragraph pageId="46" pageNumber="47">
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Mexico.
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<emphasis bold="true" pageId="46" pageNumber="47">
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San Luis
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<normalizedToken originalValue="Potosí">Potosi</normalizedToken>
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:
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</emphasis>
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25 mi E of San Luis
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<normalizedToken originalValue="Potosí">Potosi</normalizedToken>
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on highway 70, 27 May 1979, F.W.Gould 15603 (TAES).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="47" pageNumber="48" type="discussion">
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<paragraph pageId="47" pageNumber="48">
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<pageBreakToken pageId="47" pageNumber="48" start="start">Discussion</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="47" pageNumber="48">
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This
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<taxonomicName authorityName="L., Sp. Pl. 1: 67 - 68" authorityYear="1753" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Poales" pageId="47" pageNumber="48" phylum="Tracheophyta" rank="species" species="pratensis">
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<emphasis italics="true" pageId="47" pageNumber="48">Poa pratensis</emphasis>
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</taxonomicName>
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subspecies is more drought tolerant than the others, except perhaps subsp.
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<emphasis italics="true" pageId="47" pageNumber="48">agassizensis</emphasis>
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. It is most easily recognized by its very fine, relatively firm, involute leaf blades that are adaxially pubescent. This subspecies name is often applied to collections of subsp.
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<emphasis italics="true" pageId="47" pageNumber="48">pratensis</emphasis>
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. The latter often has narrow intravaginal leaves but those are softer and adaxially glabrous. According to
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<normalizedToken originalValue="Stoneberg-Holt’s">Stoneberg-Holt's</normalizedToken>
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(
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<bibRefCitation author="Stoneberg-Holt, SD" journalOrPublisher="Madrono" pageId="69" pageNumber="70" refId="B61" refString="Stoneberg-Holt, SD, 2004. The trnL-F plastid DNA region and its application to phylogeographic analysis in Poa pratensis agg. Dissertation, Masaryk University, Czech Republic." title="The trnL-F plastid DNA region and its application to phylogeographic analysis in Poa pratensis agg. Dissertation, Masaryk University, Czech Republic." year="2004">2004</bibRefCitation>
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) results, subsp.
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<emphasis italics="true" pageId="47" pageNumber="48">angustifolia</emphasis>
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is lower polyploid, and many of the higher counts reported in the literature for this taxon (at least those above 2
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<emphasis italics="true" pageId="47" pageNumber="48">n</emphasis>
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= 56) are possibly referable to subsp.
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<emphasis italics="true" pageId="47" pageNumber="48">pratensis</emphasis>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |