116 lines
9.7 KiB
XML
116 lines
9.7 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.126.34096" ID-PMC="PMC6650443" ID-Pensoft-Pub="1314-2003-126-89" ID-Pensoft-UUID="FFC2D06D486FF317CE32972BDE2BFF93" ID-PubMed="31360096" ID-Zenodo-Dep="3348547" ModsDocID="1314-2003-126-89" checkinTime="1563287727035" checkinUser="pensoft" docAuthor="Peterson, Paul M., Romaschenko, Konstantin, Soreng, Robert J. & Reyna, Jesus Valdes" docDate="2019" docId="599B2E07A5B0564B9FBDC962B0C71A02" docLanguage="en" docName="PhytoKeys 126: 89-125" docOrigin="PhytoKeys 126" docPubDate="2019-07-16" docSource="http://dx.doi.org/10.3897/phytokeys.126.34096" docTitle="Ptilagrostiella Romasch., P. M. Peterson & Soreng, gen. nov." docType="treatment" docVersion="3" id="FFC2D06D486FF317CE32972BDE2BFF93" lastPageNumber="103" masterDocId="FFC2D06D486FF317CE32972BDE2BFF93" masterDocTitle="A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of Eriocoma, Neotrinia, Oloptum, and five new genera: Barkworthia, x Eriosella, Pseudoeriocoma, Ptilagrostiella, and Thorneochloa" masterLastPageNumber="125" masterPageNumber="89" pageNumber="102" updateTime="1668139369136" 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>A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of Eriocoma, Neotrinia, Oloptum, and five new genera: Barkworthia, x Eriosella, Pseudoeriocoma, Ptilagrostiella, and Thorneochloa</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>Peterson, Paul M.</mods:namePart>
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<mods:affiliation>Department of Botany MRC- 166, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013 - 7012, USA</mods:affiliation>
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<mods:nameIdentifier type="email">peterson@si.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>Romaschenko, Konstantin</mods:namePart>
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<mods:affiliation>Department of Botany MRC- 166, 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>Soreng, Robert J.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8358-4915</mods:nameIdentifier>
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<mods:affiliation>Department of Botany MRC- 166, 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>Reyna, Jesus Valdes</mods:namePart>
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<mods:affiliation>Departamento de Botanica, Universidad Autonoma Agraria Antonio Narro, Saltillo, C. P. 25315, Mexico</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>2019</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2019-07-16</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>126</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>89</mods:start>
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<mods:end>125</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.126.34096</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.126.34096</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-126-89</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FFC2D06D486FF317CE32972BDE2BFF93</mods:identifier>
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<mods:identifier type="Zenodo-Dep">3348547</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="182224874" LSID="urn:lsid:plazi:treatment:599B2E07A5B0564B9FBDC962B0C71A02" httpUri="http://treatment.plazi.org/id/599B2E07A5B0564B9FBDC962B0C71A02" lastPageId="14" lastPageNumber="103" pageId="13" pageNumber="102">
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<subSubSection pageId="13" pageNumber="102" type="nomenclature">
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<paragraph pageId="13" pageNumber="102">
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<taxonomicName LSID="599B2E07-A5B0-564B-9FBD-C962B0C71A02" authority="Romasch., P. M. Peterson & Soreng, gen. nov." authorityName="Romasch., P. M. Peterson & Soreng, gen. nov." class="Liliopsida" family="Poaceae" genus="Ptilagrostiella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ptilagrostiella" order="Poales" pageId="13" pageNumber="102" phylum="Tracheophyta" rank="genus">Ptilagrostiella Romasch., P.M.Peterson & Soreng, gen. nov.</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="13" pageNumber="102" type="materials_examined">
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<paragraph pageId="13" pageNumber="102">
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<typeStatus>Type</typeStatus>
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.
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</paragraph>
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<paragraph pageId="13" pageNumber="102">
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Ptilagrostiella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ptilagrostiella kingii" order="Poales" pageId="13" pageNumber="102" phylum="Tracheophyta" rank="species" species="kingii">
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<emphasis italics="true" pageId="13" pageNumber="102">Ptilagrostiella kingii</emphasis>
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</taxonomicName>
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(Bol.) Romasch. (≡
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Stipa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Stipa kingii" order="Poales" pageId="13" pageNumber="102" phylum="Tracheophyta" rank="species" species="kingii">
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<emphasis italics="true" pageId="13" pageNumber="102">Stipa kingii</emphasis>
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</taxonomicName>
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Bol.).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="14" lastPageNumber="103" pageId="13" pageNumber="102" type="diagnosis">
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<paragraph pageId="13" pageNumber="102">Diagnosis.</paragraph>
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<paragraph lastPageId="14" lastPageNumber="103" pageId="13" pageNumber="102">
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Ptilagrostiella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ptilagrostiella" order="Poales" pageId="13" pageNumber="102" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="13" pageNumber="102">Ptilagrostiella</emphasis>
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</taxonomicName>
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differs from
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Piptatheropsis" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Piptatheropsis" order="Poales" pageId="13" pageNumber="102" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="13" pageNumber="102">Piptatheropsis</emphasis>
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</taxonomicName>
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Romasch., P.M. Peterson & Soreng in having glumes without veins with obtuse apices, a sharp callus, and laterally compressed florets with lemma margins overlapping most of the palea at maturity; and
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<pageBreakToken pageId="14" pageNumber="103" start="start">differs</pageBreakToken>
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from
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<taxonomicName class="Liliopsida" family="Gramineae" genus="Ptilagrostis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Ptilagrostis" order="Poales" pageId="14" pageNumber="103" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="14" pageNumber="103">Ptilagrostis</emphasis>
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</taxonomicName>
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Griseb. in having a sharp-pointed callus and lemmatal awns with very short hairs.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="14" pageNumber="103" type="description">
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<paragraph pageId="14" pageNumber="103">Description.</paragraph>
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<paragraph pageId="14" pageNumber="103">
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Plants perennial, cespitose, not rhizomatous with intravaginal branching. Culms 15-40 cm tall, 0.4-0.8 mm in diameter, erect, glabrous, not branching above. Leaf sheaths open, glabrous to scaberulous; ligules 1-2.5 mm long, membranous, apex obtuse to acute; blades 3-15 cm long, 0.3-0.5 mm wide, convolute, filiform, flexuous. Panicles 4-10 cm long, loosely contracted; branches ascending and usually appressed. Spikelets 3-4.5 mm long, lanceolate with one fertile floret without rachilla extension; disarticulation above the glumes; glumes 3-4.5 mm long, usually longer than the florets, hyaline, without veins, apex obtuse; florets 2.8-4.2 mm long, laterally compressed; calluses 0.3-0.7 mm long, sharp, hairy; lemmas 2.8-4.2 mm long, membranous to chartaceous, evenly pubescent throughout, the hairs 0.3-0.5 mm long, margins overlapping most of the palea at maturity, apex 2-lobed, the lobes 0.1-0.4 mm long, awned; lemma epidermal pattern saw-like; fundamental cells of variable length with sinuous sidewalls 2-8 times longer than silica cells irregularly alternating; silica bodies elongated-rectangular, sometimes paired with square-shaped cork cells; lemmatal awns 10-14 mm long, strigillose in lower part; 1- or 2-geniculate, persistent; paleas 2.6-3.2 mm long, shorter to about as long as the lemma, chartaceous, 2-veined; stamens 3, anthers 0.5-1.5 mm long, penicillate; lodicules 3, membranous; stigmas 2; ovary glabrous. Caryopses 1.5-2.3 mm long, fusiform, pericarp adherent. Chromosome number 2
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<emphasis italics="true" pageId="14" pageNumber="103">n</emphasis>
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= 22 (
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<bibRefCitation DOI="https://doi.org/10.1002/j.1537-2197.1945.tb05164.x" author="Johnson, BL" journalOrPublisher="Smithsonian Contributions to Botany" pageId="21" pageNumber="110" refId="B18" refString="Johnson, BL, 1945. Natural hybrids between Oryzopsis hymenoides and several species of Stipa. American Journal of Botany 32(9): 599-608. https://doi.org/10.1002/j.1537-2197.1945.tb05164.x" title="Natural hybrids between Oryzopsis hymenoides and several species of Stipa. American Journal of Botany 32 (9): 599 - 608." url="https://doi.org/10.1002/j.1537-2197.1945.tb05164.x" year="1945">Johnson 1945</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |