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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.63.8198" ID-GBIF-Dataset="bf51ef6c-3446-4fd4-bb71-fdddcf1f773b" ID-PMC="PMC4956932" ID-Pensoft-Pub="1314-2003-63-107" ID-Pensoft-UUID="FF82FFF8E373BE6BFFF3FF84BF08EE20" ID-PubMed="27489482" ID-Zenodo-Dep="121162" ModsDocAuthor="" ModsDocDate="2016" ModsDocID="1314-2003-63-107" ModsDocOrigin="PhytoKeys 63" ModsDocTitle="A revision of PoasubsectionAphanelytrum (Poaceae, Pooideae, Poaeae, Poinae); and a new species, Poaauriculata" checkinTime="1465304805122" checkinUser="pensoft" docAuthor="Peterson, Paul M. &amp; Soreng, Robert J." docDate="2016" docId="DA1767DB08F835795FE0D749380A0D72" docLanguage="en" docName="PhytoKeys 63: 107-125" docOrigin="PhytoKeys 63" docSource="http://dx.doi.org/10.3897/phytokeys.63.8198" docTitle="Poa reclinata Soreng &amp; P. M. Peterson 2016, comb. nov." docType="treatment" docVersion="6" id="FF82FFF8E373BE6BFFF3FF84BF08EE20" lastPageNumber="114" masterDocId="FF82FFF8E373BE6BFFF3FF84BF08EE20" masterDocTitle="A revision of Poa subsection Aphanelytrum (Poaceae, Pooideae, Poaeae, Poinae); and a new species, Poa auriculata" masterLastPageNumber="125" masterPageNumber="107" pageNumber="112" updateTime="1668141686291" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>A revision of Poa subsection Aphanelytrum (Poaceae, Pooideae, Poaeae, Poinae); and a new species, Poa auriculata</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Peterson, Paul M.</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Soreng, Robert J.</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>PhytoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2016</mods:date>
<mods:detail type="volume">
<mods:number>63</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>107</mods:start>
<mods:end>125</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/phytokeys.63.8198</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.63.8198</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-63-107</mods:identifier>
<mods:identifier type="Pensoft-UUID">FF82FFF8E373BE6BFFF3FF84BF08EE20</mods:identifier>
<mods:identifier type="Zenodo-Dep">121162</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="161677315" LSID="urn:lsid:plazi:treatment:DA1767DB08F835795FE0D749380A0D72" httpUri="http://treatment.plazi.org/id/DA1767DB08F835795FE0D749380A0D72" lastPageId="7" lastPageNumber="114" pageId="5" pageNumber="112">
<subSubSection pageId="5" pageNumber="112" type="nomenclature">
<paragraph pageId="5" pageNumber="112">
<taxonomicName LSID="7571A97E-2C6A-58AA-AB0D-93F8F15D1143" authority="(Swallen) Soreng &amp; P. M. Peterson" authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa reclinata" order="Poales" pageId="5" pageNumber="112" phylum="Tracheophyta" rank="species" species="reclinata" status="comb. nov.">
<pageBreakToken pageId="5" pageNumber="112" start="start">Poa</pageBreakToken>
reclinata (Swallen) Soreng &amp; P.M. Peterson
</taxonomicName>
<taxonomicNameLabel pageId="5" pageNumber="112">comb. nov.</taxonomicNameLabel>
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Poa reclinata: A Habit B Sheath, ligule, and blade C Spikelet D Lower floret E Upper glumes F Lower glume G Lemma H Palea and rachilla, lateral view I Stamens with palea J Lodicules and with pistil. (Cuatrecasas 9970 &amp; Garcua Barriga, US- 1798714)." figureDoi="10.3897/phytokeys.63.8198.figure3" httpUri="https://binary.pensoft.net/fig/91499" pageId="5" pageNumber="112">Fig. 3</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="reference_group">
<paragraph pageId="6" pageNumber="113">
<taxonomicName class="Liliopsida" family="Poaceae" genus="Festuca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Festuca reclinata" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="reclinata">
<pageBreakToken pageId="6" pageNumber="113" start="start">Festuca</pageBreakToken>
reclinata
</taxonomicName>
Swallen, Contr. U.S. Natl. Herb. 26(6): 254. 1949.
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="materials_examined">
<paragraph pageId="6" pageNumber="113">Type.</paragraph>
<paragraph pageId="6" pageNumber="113">
COLOMBIA. Departamento Santander, Cordillera Oriental, Paramo de Almorzadero, 3500-3700 m, 20 Jun 1940,
<emphasis italics="true" pageId="6" pageNumber="113">J. Cuatrecasas &amp; H. Garcia Barriga 9970</emphasis>
(holotype: US-1798714!; isotypes: BC-635144 seen digitally!; COL-34839 seen digitally!).
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="description">
<paragraph pageId="6" pageNumber="113">Description.</paragraph>
<paragraph pageId="6" pageNumber="113">
Stooling perennials forming small tussocks with intravaginal innovations. Culms 30-40 cm tall, decumbent to erect, often weak, spreading to prostrate, culm bases continuously branch and often root at low to mid-culm nodes, glabrous; nodes 2 or 3 in distal half; internodes 1.4-8.0 cm long. Leaf sheaths about 2/3 as long as the internodes, membranous, greenish-white, scabrous, upper sheaths open 1/2 the length, collars flared; ligules 1-2.5 mm long, membranous, apex acute, ephemeral; blades 5-15 cm
<normalizedToken originalValue="×">x</normalizedToken>
0.3-0.5 mm, flat, thin, lax, green, abaxially scabrous. Panicles 9-10
<normalizedToken originalValue="×">x</normalizedToken>
2-3 cm, few-flowered with 5-8 spikelets, flexuous, ovate, branched; branches glabrous. Spikelets 10-13 mm long, 4-flowered, glabrous; obovate; rachilla 1.2-2.4 mm long, minutely scabrous; glumes 1.3-3.6 mm long, membranous, lanceolate, green, glabrous, upper margins hairy; lower glumes 1.3-2 mm long, 1-nerved, apex acute; upper glumes 3-3.5 mm long, less than
<normalizedToken originalValue="½">1/2</normalizedToken>
as long as the florets, 3-veined, apex acuminate; lemmas 6.6-8 mm long, 5-veined, lanceolate, membranous, green, scabrous, apex bifid, two-dentate, awned between the teeth, the awn 1-2 mm long; paleas 4.6-5.2 mm long, membranous, keels scabrous, apex bifid; lodicules 0.6-0.8 mm long, lanceolate; anthers 2.7-3.3 mm long; ovaries glabrous. Caryopses not seen.
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="description">
<paragraph pageId="6" pageNumber="113">Leaf anatomy.</paragraph>
<paragraph pageId="6" pageNumber="113">
The leaf anatomy of
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa reclinata" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="6" pageNumber="113">Poa reclinata</emphasis>
</taxonomicName>
is C3, XyMS+ and the transverse sections have many widely spaced vascular bundles with small ribs; sclerenchyma is under both abaxial and adaxial epidermis, discontinuous, small, extending to the vascular bundles forming girders; bulliform cells are absent; epidermis is sparsely hairy. An anatomical description of
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa reclinata" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="6" pageNumber="113">Poa reclinata</emphasis>
</taxonomicName>
is also found in
<bibRefCitation author="Watson, L" journalOrPublisher="C. A. B. International, Wallingford" pageId="11" pageNumber="118" refId="B38" refString="Watson, L, Dallwitz, M, 1992. The Grass Genera of the World. C.A.B. International, Wallingford" title="The Grass Genera of the World" year="1992">Watson and Dallwitz (1992)</bibRefCitation>
and
<bibRefCitation author="Stancik, D" journalOrPublisher="Contributions from the United States National Herbarium" pageId="11" pageNumber="118" pagination="1 - 184" refId="B33" refString="Stancik, D, Peterson, PM, 2007. A revision of Festuca (Poaceae: Loliinae) in South American Paramos. Contributions from the United States National Herbarium 56: 1 - 184" title="A revision of Festuca (Poaceae: Loliinae) in South American Paramos." volume="56" year="2007">
<normalizedToken originalValue="Stančík">Stancik</normalizedToken>
and Peterson (2007
</bibRefCitation>
, figs 13g, 77
<normalizedToken originalValue="c–f">c-f</normalizedToken>
).
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="phenology">
<paragraph pageId="6" pageNumber="113">Phenology.</paragraph>
<paragraph pageId="6" pageNumber="113">Flowering in July.</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="distribution">
<paragraph pageId="6" pageNumber="113">Distribution.</paragraph>
<paragraph pageId="6" pageNumber="113">
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa reclinata" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="6" pageNumber="113">Poa reclinata</emphasis>
</taxonomicName>
is known only from the type locality, the paramo of the Colombian Cordillera Oriental, Dept. Santander (
<bibRefCitation author="Stancik, D" journalOrPublisher="Contributions from the United States National Herbarium" pageId="11" pageNumber="118" pagination="1 - 184" refId="B33" refString="Stancik, D, Peterson, PM, 2007. A revision of Festuca (Poaceae: Loliinae) in South American Paramos. Contributions from the United States National Herbarium 56: 1 - 184" title="A revision of Festuca (Poaceae: Loliinae) in South American Paramos." volume="56" year="2007">
<normalizedToken originalValue="Stančík">Stancik</normalizedToken>
and Peterson 2007
</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="conservation status">
<paragraph pageId="6" pageNumber="113">Conservation status.</paragraph>
<paragraph pageId="6" pageNumber="113">
The species is rare and its conservation status is data deficient (
<bibRefCitation author="IUCN" journalOrPublisher="US Department of Agriculture Miscellaneous Publication" pageId="11" pageNumber="118" refId="B13" refString="IUCN, 2010. IUCN Red List of Threatened Species. Version 2010.3." title="IUCN Red List of Threatened Species. Version 2010.3" year="2010">IUCN 2010</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="113" type="etymology">
<paragraph pageId="6" pageNumber="113">Etymology.</paragraph>
<paragraph pageId="6" pageNumber="113">
The specific epithet is probably in reference to the decumbent, spreading or prostrate culms, a frequent characteristic of the species in this subsection of
<taxonomicName class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="genus">
<emphasis italics="true" pageId="6" pageNumber="113">Poa</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection lastPageId="7" lastPageNumber="114" pageId="6" pageNumber="113" type="comments">
<paragraph pageId="6" pageNumber="113">Comments.</paragraph>
<paragraph lastPageId="7" lastPageNumber="114" pageId="6" pageNumber="113">
<bibRefCitation author="Stancik, D" journalOrPublisher="Contributions from the United States National Herbarium" pageId="11" pageNumber="118" pagination="1 - 184" refId="B33" refString="Stancik, D, Peterson, PM, 2007. A revision of Festuca (Poaceae: Loliinae) in South American Paramos. Contributions from the United States National Herbarium 56: 1 - 184" title="A revision of Festuca (Poaceae: Loliinae) in South American Paramos." volume="56" year="2007">
<normalizedToken originalValue="Stančík">Stancik</normalizedToken>
and Peterson (2007)
</bibRefCitation>
mentioned that the spikelets and panicles of
<taxonomicName class="Liliopsida" family="Poaceae" genus="Festuca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Festuca" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="genus">
<emphasis italics="true" pageId="6" pageNumber="113">Festuca</emphasis>
</taxonomicName>
[
<taxonomicName class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="genus">
<emphasis italics="true" pageId="6" pageNumber="113">Poa</emphasis>
</taxonomicName>
]
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="reclinata" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="6" pageNumber="113">reclinata</emphasis>
</taxonomicName>
were similar to
<taxonomicName class="Liliopsida" family="Poaceae" genus="Aphanelytrum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aphanelytrum procumbens" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="procumbens">
<emphasis italics="true" pageId="6" pageNumber="113">Aphanelytrum procumbens</emphasis>
</taxonomicName>
[
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa hitchcockiana" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="hitchcockiana">
<emphasis italics="true" pageId="6" pageNumber="113">Poa hitchcockiana</emphasis>
</taxonomicName>
], but the glumes in the former are veined. They provisionally placed
<taxonomicName class="Liliopsida" family="Poaceae" genus="Festuca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Festuca reclinata" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="6" pageNumber="113">Festuca reclinata</emphasis>
</taxonomicName>
in
<taxonomicName authority="E.B. Alexeev" basionym-authority="(Tzvelev)" class="Liliopsida" family="Poaceae" genus="Festuca" higherTaxonomySource="CoL" infraspecific-rank="sect." kingdom="Plantae" lsidName="Festuca" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="section" section="Glabricarpae" subGenus="Subulatae">Festuca subg. Subulatae (Tzvelev) E.B. Alexeev sect. Glabricarpae</taxonomicName>
E.B. Alexeev, as suggested by Aleexev (1986), along with
<taxonomicName class="Liliopsida" family="Poaceae" genus="Festuca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Festuca caldasii" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="caldasii">
<emphasis italics="true" pageId="6" pageNumber="113">Festuca caldasii</emphasis>
</taxonomicName>
(Kunth) Kunth and
<taxonomicName class="Liliopsida" family="Poaceae" genus="Festuca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Festuca woodii" order="Poales" pageId="6" pageNumber="113" phylum="Tracheophyta" rank="species" species="woodii">
<emphasis italics="true" pageId="6" pageNumber="113">Festuca woodii</emphasis>
</taxonomicName>
<normalizedToken originalValue="Stančík">Stancik</normalizedToken>
.
<pageBreakToken pageId="7" pageNumber="114" start="start">The</pageBreakToken>
latter two species of
<taxonomicName class="Liliopsida" family="Poaceae" genus="Festuca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Festuca" order="Poales" pageId="7" pageNumber="114" phylum="Tracheophyta" rank="genus">
<emphasis italics="true" pageId="7" pageNumber="114">Festuca</emphasis>
</taxonomicName>
have open sheaths, flattened and hairy (hispid?) rachillas, and lemmas with rounded keels and annulate calluses, whereas
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa reclinata" order="Poales" pageId="7" pageNumber="114" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="7" pageNumber="114">Poa reclinata</emphasis>
</taxonomicName>
has fused sheaths
<normalizedToken originalValue="½">1/2</normalizedToken>
their length, terete rachillas that are minutely scabrous, and lemmas with compressed keels and smooth transitions from callus to lemma. We hope to confirm the placement of
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa reclinata" order="Poales" pageId="7" pageNumber="114" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="7" pageNumber="114">Poa reclinata</emphasis>
</taxonomicName>
in
<taxonomicName authority="subsect. Aphanelytrum" authorityName="subsect. Aphanelytrum (Hack.) Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="subsect. Tovarochloa (Macfarl. &amp; P. But) Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" infraspecific-rank="subsect." kingdom="Plantae" lsidName="Poa" order="Poales" pageId="7" pageNumber="114" phylum="Tracheophyta" rank="genus" subsection="Aphanelytrum">Poa subsect. Aphanelytrum</taxonomicName>
in future DNA studies.
</paragraph>
<caption ID-Zenodo-Dep="979685" doi="10.3897/phytokeys.63.8198.figure3" httpUri="https://binary.pensoft.net/fig/91499" pageId="7" pageNumber="114" start="Figure 3" startId="F3">
<paragraph pageId="7" pageNumber="114">
<emphasis bold="true" pageId="7" pageNumber="114">Figure 3.</emphasis>
<taxonomicName authorityName="Soreng &amp; P. M. Peterson" authorityYear="2016" baseAuthorityName="Soreng &amp; P. M. Peterson" baseAuthorityYear="2016" class="Liliopsida" family="Poaceae" genus="Poa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Poa reclinata" order="Poales" pageId="7" pageNumber="114" phylum="Tracheophyta" rank="species" species="reclinata">
<emphasis italics="true" pageId="7" pageNumber="114">Poa reclinata</emphasis>
</taxonomicName>
:
<emphasis bold="true" pageId="7" pageNumber="114">A</emphasis>
Habit
<emphasis bold="true" pageId="7" pageNumber="114">B</emphasis>
Sheath, ligule, and blade
<emphasis bold="true" pageId="7" pageNumber="114">C</emphasis>
Spikelet
<emphasis bold="true" pageId="7" pageNumber="114">D</emphasis>
Lower floret
<emphasis bold="true" pageId="7" pageNumber="114">E</emphasis>
Upper glumes
<emphasis bold="true" pageId="7" pageNumber="114">F</emphasis>
Lower glume
<emphasis bold="true" pageId="7" pageNumber="114">G</emphasis>
Lemma
<emphasis bold="true" pageId="7" pageNumber="114">H</emphasis>
Palea and rachilla, lateral view
<emphasis bold="true" pageId="7" pageNumber="114">I</emphasis>
Stamens with palea
<emphasis bold="true" pageId="7" pageNumber="114">J</emphasis>
Lodicules and with pistil. (
<emphasis italics="true" pageId="7" pageNumber="114">Cuatrecasas 9970 &amp; Garcua Barriga</emphasis>
, US-1798714).
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>
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