167 lines
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167 lines
15 KiB
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<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="6BF314E2F87F568ABF4A96B1F47B5D5F" 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="Pseudoeriocoma Romasch., P. M. Peterson & Soreng, gen. nov." docType="treatment" docVersion="3" id="FFC2D06D486FF317CE32972BDE2BFF93" lastPageNumber="101" 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="100" 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="182224867" LSID="urn:lsid:plazi:treatment:6BF314E2F87F568ABF4A96B1F47B5D5F" httpUri="http://treatment.plazi.org/id/6BF314E2F87F568ABF4A96B1F47B5D5F" lastPageId="12" lastPageNumber="101" pageId="11" pageNumber="100">
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<subSubSection pageId="11" pageNumber="100" type="nomenclature">
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<paragraph pageId="11" pageNumber="100">
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<taxonomicName LSID="6BF314E2-F87F-568A-BF4A-96B1F47B5D5F" authority="Romasch., P. M. Peterson & Soreng, gen. nov." authorityName="Romasch., P. M. Peterson & Soreng, gen. nov." class="Liliopsida" family="Poaceae" genus="Pseudoeriocoma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pseudoeriocoma" order="Poales" pageId="11" pageNumber="100" phylum="Tracheophyta" rank="genus">Pseudoeriocoma Romasch., P.M.Peterson & Soreng, gen. nov.</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="100" type="materials_examined">
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<paragraph pageId="11" pageNumber="100">
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<typeStatus>Type</typeStatus>
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.
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</paragraph>
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<paragraph pageId="11" pageNumber="100">
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Pseudoeriocoma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pseudoeriocoma eminens" order="Poales" pageId="11" pageNumber="100" phylum="Tracheophyta" rank="species" species="eminens">
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<emphasis italics="true" pageId="11" pageNumber="100">Pseudoeriocoma eminens</emphasis>
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</taxonomicName>
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(Cav.) Romasch. (≡
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Stipa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Stipa eminens" order="Poales" pageId="11" pageNumber="100" phylum="Tracheophyta" rank="species" species="eminens">
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<emphasis italics="true" pageId="11" pageNumber="100">Stipa eminens</emphasis>
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</taxonomicName>
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Cav.)
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="100" type="diagnosis">
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<paragraph pageId="11" pageNumber="100">Diagnosis.</paragraph>
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<paragraph pageId="11" pageNumber="100">
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Pseudoeriocoma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pseudoeriocoma" order="Poales" pageId="11" pageNumber="100" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="11" pageNumber="100">Pseudoeriocoma</emphasis>
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</taxonomicName>
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differs from
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Eriocoma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Eriocoma" order="Poales" pageId="11" pageNumber="100" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="11" pageNumber="100">Eriocoma</emphasis>
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</taxonomicName>
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Nutt. in having bamboo-like culms commonly with up to 13 nodes, 3-6 mm thick below, with ramified branching at the middle and upper nodes.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="100" type="description">
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<paragraph pageId="11" pageNumber="100">Description.</paragraph>
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<paragraph pageId="11" pageNumber="100">
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Plants perennial, cespitose, usually short rhizomatous from a knotty base. Culms 30-230 (often over 100) cm tall, erect or ascending, often geniculate, 3-6 mm thick and often woody and bamboo-like below with ramified and branching at the middle and upper nodes, with (2) 3-13 nodes, internodes glabrous or hairy. Leaf sheaths shorter than the internodes above to shorter or longer below, glabrous, pubescent or hirsute, sometimes ciliate on the margins and summit; collars glabrous or with a tuft of hairs; ligules 0.5-8 mm long, hyaline to membranous, apex truncate to acute or obtuse, often lacerate; blades (1.5-) 5-40 cm long, 1-4 mm wide, flat to tightly involute or convolute, glabrous or pubescent, usually scabrous. Panicles 8-45 (-55) cm long, usually rather narrow and less than 8.5 cm wide, loosely or densely flowered, branches ascending to spreading and naked near base; pedicles longer than the spikelets. Spikelets 8-15 mm long, lanceolate with one fertile floret without rachilla extension; disarticulation above the glumes; glumes (4-) 6-15 mm long, longer than the florets, subequal or unequal, hyaline to membranous, 1-7-veined, glabrous, acuminate; florets 4-7 mm long, usually fusiform; calluses 0.2-2 long, sharp, hairy; lemmas 4-7 mm long, fusiform, coriaceous, evenly hairy, the hairs 0.4-2 mm long, margins enveloping most of the palea, apex entire and awned; lemma epidermal pattern maize-like; fundamental cells squared, longitudinally compressed with straight thin sidewalls subequal to silica cells (silica bodies) or shorter, regularly alternating; cork cells absent; lemmatal awns 20-80 mm long, 2-geniculate, flexuous, the segments scabrous or pubescent; paleas 1-4.6 mm long, 1/3 to
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<normalizedToken originalValue="¾">3/4</normalizedToken>
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as long as the lemmas, 2-veined, veins not prolonged, hairy; anthers 2.5-4 mm long, penicillate or not, 3 in number, lodicules 2 or 3; stigmas 2. Caryopses 3-4 mm long, fusiform, pericarp adherent, hilum linear.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="100" type="distribution">
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<paragraph pageId="11" pageNumber="100">Distribution and habitat.</paragraph>
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<paragraph pageId="11" pageNumber="100">
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There are six species of
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Pseudoeriocoma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pseudoeriocoma" order="Poales" pageId="11" pageNumber="100" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="11" pageNumber="100">Pseudoeriocoma</emphasis>
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</taxonomicName>
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occurring in southwestern North America (Mexico and USA). These species generally occur on steep rock outcrops in xerophytic vegetation; pinyon, pine, pine-oak woodlands, and spruce-fir forests; 600-3000 m (
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<bibRefCitation author="Barkworth, ME" editor="Barkworth, ME" journalOrPublisher="Oxford Universtiy Press, New York" pageId="20" pageNumber="109" pagination="109 - 186" refId="B3" refString="Barkworth, ME, 2007. 10. Stipeae Dumort. In: Barkworth, ME, Capels, KM, Long, S, Anderton, LK, Piep, MB, Eds., Magnoliophyta: Commelinidae (in part): Poaceae, part 1. Oxford Universtiy Press, New York: 109 - 186" title="10. Stipeae Dumort." volumeTitle="Magnoliophyta: Commelinidae (in part): Poaceae, part 1." year="2007">Barkworth 2007</bibRefCitation>
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;
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<bibRefCitation author="Valdes Reyna, J" journalOrPublisher="Comision Nacional para el Conocimiento y Uso de la Biodiversidad, Mexico" pageId="23" pageNumber="112" refId="B42" refString="Valdes Reyna, J, 2015. Gramineas de Coahuila. Comision Nacional para el Conocimiento y Uso de la Biodiversidad, Mexico" title="Gramineas de Coahuila." year="2015">
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<normalizedToken originalValue="Valdés">Valdes</normalizedToken>
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Reyna 2015
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</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="12" pageNumber="101" type="comments">
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<paragraph pageId="12" pageNumber="101">
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<pageBreakToken pageId="12" pageNumber="101" start="start">Comments</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="12" pageNumber="101">
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Within our preliminary molecular analyses of
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Pseudoeriocoma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pseudoeriocoma" order="Poales" pageId="12" pageNumber="101" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="12" pageNumber="101">Pseudoeriocoma</emphasis>
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</taxonomicName>
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there are two clades each of
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<taxonomicName lsidName="P. constricta" pageId="12" pageNumber="101" rank="species" species="constricta">
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<emphasis italics="true" pageId="12" pageNumber="101">P. constricta</emphasis>
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</taxonomicName>
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,
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<taxonomicName lsidName="P. eminens" pageId="12" pageNumber="101" rank="species" species="eminens">
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<emphasis italics="true" pageId="12" pageNumber="101">P. eminens</emphasis>
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</taxonomicName>
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, and
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<taxonomicName lsidName="P. multinodis" pageId="12" pageNumber="101" rank="species" species="multinodis">
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<emphasis italics="true" pageId="12" pageNumber="101">P. multinodis</emphasis>
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</taxonomicName>
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that require further study, and at least three species currently placed in
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Jarava" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Jarava" order="Poales" pageId="12" pageNumber="101" phylum="Magnoliophyta" rank="genus">
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<emphasis italics="true" pageId="12" pageNumber="101">Jarava</emphasis>
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</taxonomicName>
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from South America that align within
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<taxonomicName class="Liliopsida" family="Poaceae" genus="Pseudoeriocoma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pseudoeriocoma" order="Poales" pageId="12" pageNumber="101" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="12" pageNumber="101">Pseudoeriocoma</emphasis>
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</taxonomicName>
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(
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<bibRefCitation DOI="https://doi.org/10.1002/tax.611002" author="Romaschenko, K" journalOrPublisher="Taxon" pageId="22" pageNumber="111" pagination="18 - 44" refId="B26" refString="Romaschenko, K, Peterson, PM, Soreng, RJ, Garcia-Jacas, N, Futorna, O, Susanna, A, 2012. Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology. Taxon 61 (1): 18 - 44, DOI: https://doi.org/10.1002/tax.611002" title="Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology." url="https://doi.org/10.1002/tax.611002" volume="61" year="2012">Romaschenko et al. 2012</bibRefCitation>
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,
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<bibRefCitation author="Romaschenko, K" journalOrPublisher="Taxon" pageId="22" pageNumber="111" publicationUrl="http://2014.botanyconference.org/engine/search/index.php?func=detail&aid=233" refId="B27" refString="Romaschenko, K, Peterson, PM, Soreng, RJ, Valdes Reyna, J, 2014. A molecular phylogeny and classification of Eriocoma and Ptilostipa (Poaceae: Stipeae). Botany2014, New Frontiers in Botany, Systematics Section, held at the Boise Convention Centre, Boise, Idaho (Abstract 26-31 July 2014) http://2014.botanyconference.org/engine/search/index.php?func=detail&aid=233" title="A molecular phylogeny and classification of Eriocoma and Ptilostipa (Poaceae: Stipeae). Botany 2014, New Frontiers in Botany, Systematics Section, held at the Boise Convention Centre, Boise, Idaho (Abstract 26 - 31 July 2014)" url="http://2014.botanyconference.org/engine/search/index.php?func=detail&aid=233" year="2014">2014</bibRefCitation>
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;
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<bibRefCitation author="Valdes Reyna, J" journalOrPublisher="Comision Nacional para el Conocimiento y Uso de la Biodiversidad, Mexico" pageId="23" pageNumber="112" publicationUrl="https://www.regonline.com/builder/site/Default.aspx?EventID=1060172" refId="B43" refString="Valdes Reyna, J, Romaschenko, K, Peterson, PM, Soreng, RJ, 2013. A molecular phylogeny and classification of Eriocoma and Pseudoeriocoma (Poaceae: Stipeae). Monocots V, 5th International Conference on Comparative Biology of Monocotyledons, New York, held at Fordham University Campus, Keating Hall Auditorium (Abstract 8 July 2013). https://www.regonline.com/builder/site/Default.aspx?EventID=1060172" title="A molecular phylogeny and classification of Eriocoma and Pseudoeriocoma (Poaceae: Stipeae). Monocots V, 5 th International Conference on Comparative Biology of Monocotyledons, New York, held at Fordham University Campus, Keating Hall Auditorium (Abstract 8 July 2013)." url="https://www.regonline.com/builder/site/Default.aspx?EventID=1060172" year="2013">
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<normalizedToken originalValue="Valdés">Valdes</normalizedToken>
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Reyna et al. 2013
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</bibRefCitation>
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; Romaschenko et al. in prep.).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |