426 lines
38 KiB
XML
426 lines
38 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.159.55330" ID-GBIF-Dataset="d5277062-3126-470b-8780-f05e487b1c89" ID-PMC="PMC7486311" ID-Pensoft-Pub="1314-2003-159-71" ID-Pensoft-UUID="E9DA9186A78F5770980129A17A54A8F2" ID-PubMed="32973390" ModsDocID="1314-2003-159-71" checkinTime="1599298919024" checkinUser="pensoft" docAuthor="Valdespino, Ivan A." docDate="2020" docId="C006952C10055AD0A03ECDC544AF6E88" docLanguage="en" docName="PhytoKeys 159: 71-113" docOrigin="PhytoKeys 159" docSource="http://dx.doi.org/10.3897/phytokeys.159.55330" docTitle="Selaginella papillosa Valdespino 2020, sp. nov." docType="treatment" docVersion="4" id="E9DA9186A78F5770980129A17A54A8F2" lastPageNumber="71" masterDocId="E9DA9186A78F5770980129A17A54A8F2" masterDocTitle="Taxonomic innovations in South American Selaginella (Selaginellaceae, Lycopodiophyta): description of five new species and an additional range extension" masterLastPageNumber="113" masterPageNumber="71" pageNumber="71" updateTime="1668140019644" 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>Taxonomic innovations in South American Selaginella (Selaginellaceae, Lycopodiophyta): description of five new species and an additional range extension</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>Valdespino, Ivan A.</mods:namePart>
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<mods:affiliation>Departamento de Botanica, Facultad de Ciencias Naturales, Exactas y Tecnologia, Universidad de Panama, Apartado Postal 0824 - 00073, Panama & Sistema Nacional de Investigacion (SNI), SENACYT, Panama</mods:affiliation>
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<mods:nameIdentifier type="orcid">https://orcid.org/0000-0003-1004-8289</mods:nameIdentifier>
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<mods:nameIdentifier type="email">iavaldespino@gmail.com</mods:nameIdentifier>
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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>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>159</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>71</mods:start>
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<mods:end>113</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.159.55330</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.159.55330</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-159-71</mods:identifier>
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<mods:identifier type="Pensoft-UUID">E9DA9186A78F5770980129A17A54A8F2</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="167514797" LSID="urn:lsid:plazi:treatment:C006952C10055AD0A03ECDC544AF6E88" httpUri="http://treatment.plazi.org/id/C006952C10055AD0A03ECDC544AF6E88" lastPageNumber="71" pageId="0" pageNumber="71">
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<subSubSection pageId="0" pageNumber="71" type="nomenclature">
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<paragraph pageId="0" pageNumber="71">
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<taxonomicName LSID="C006952C-1005-5AD0-A03E-CDC544AF6E88" authority="Valdespino" authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa" status="sp. nov.">Selaginella papillosa Valdespino</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="71">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Selaginella papillosa Valdespino. A Section of upper surface of stem showing median and lateral leaves B median leaf, upper surface C distal half of median leaf, upper surface (same leaf shown in B) D proximal half of median leaf, upper surface (same leaf shown in B) E section median leaf inner half, upper surface; note prominent papillae on cells (E 1) F detail of midsection of median leaf, upper surface G lateral leaf and sections of median leaves, upper surface H portion of basiscopic margin of lateral leaf, upper surface; note submarginal stomata (a) I distal half of lateral leaf, upper surface, note short hair on leaf surface (a). A-I taken from the holotype." figureDoi="10.3897/phytokeys.159.55330.figure6" httpUri="https://binary.pensoft.net/fig/449477" pageId="0" pageNumber="71">Figures 6</figureCitation>
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Selaginella papillosa Valdespino. A Section of lower surface of stem showing lateral leaves and axillar leaf B lateral leaf, lower surface C proximal half of lateral leaf, upper surface (same leaf shown in B) D distal half of lateral leaf, upper surface (same leaf shown in B) E detail of lateral leaf, lower surface; note elongate, papillate idioblasts with papillae interconnected (a) F detail of outer half of median leaf, lower surface; note elongate, papillate idioblasts (a) G axillary leaf and portion of lateral leaves, lower surface H portion of proximal half of axillary leaf, lower surface (same leaf shown in G) I distal half of axillary leaf, lower surface (same leaf shown in G). A-I taken from the holotype." figureDoi="10.3897/phytokeys.159.55330.figure7" httpUri="https://binary.pensoft.net/fig/449478" pageId="0" pageNumber="71">, 7</figureCitation>
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Selaginella papillosa Valdespino. A Megaspore, proximal face B detail of megaspore, proximal face C megaspore, distal face D detail of megaspore, distal face. A-D taken from the holotype." figureDoi="10.3897/phytokeys.159.55330.figure8" httpUri="https://binary.pensoft.net/fig/449479" pageId="0" pageNumber="71">, 8</figureCitation>
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<figureCitation captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Distribution of Selaginella papillosa *, S. pubimarginata ◊, S. rostrata ■." figureDoi="10.3897/phytokeys.159.55330.figure9" httpUri="https://binary.pensoft.net/fig/449480" pageId="0" pageNumber="71">, 9</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="71" type="diagnosis">
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<paragraph pageId="0" pageNumber="71">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="71">
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<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
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<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
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</taxonomicName>
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differs from
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<taxonomicName lsidName="S. brevifolia" pageId="0" pageNumber="71" rank="species" species="brevifolia">
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<emphasis italics="true" pageId="0" pageNumber="71">S. brevifolia</emphasis>
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</taxonomicName>
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by its median leaf inner and outer halves equal in width (vs. outer halves typically wider than the inner halves), lateral leaf upper surfaces with midribs not marked and of the same color as the rest of the laminae (vs. well-marked and straw-colored), acroscopic margins long-ciliate along proximal
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<normalizedToken originalValue="¼">1/4</normalizedToken>
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-⅓ or occasionally proximal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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(vs.
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<normalizedToken originalValue="½-¾">1/2-3/4</normalizedToken>
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), and axillary leaf ovate or ovate-lanceolate (vs. ovate-deltate).
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</paragraph>
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<caption doi="10.3897/phytokeys.159.55330.figure6" httpUri="https://binary.pensoft.net/fig/449477" pageId="0" pageNumber="71" start="Figure 6" startId="F6">
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<paragraph pageId="0" pageNumber="71">
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<emphasis bold="true" pageId="0" pageNumber="71">Figure 6.</emphasis>
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<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
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<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
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</taxonomicName>
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Valdespino.
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<emphasis bold="true" pageId="0" pageNumber="71">A</emphasis>
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Section of upper surface of stem showing median and lateral leaves
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<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
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median leaf, upper surface
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<emphasis bold="true" pageId="0" pageNumber="71">C</emphasis>
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distal half of median leaf, upper surface (same leaf shown in
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<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
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)
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<emphasis bold="true" pageId="0" pageNumber="71">D</emphasis>
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proximal half of median leaf, upper surface (same leaf shown in
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<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
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)
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<emphasis bold="true" pageId="0" pageNumber="71">E</emphasis>
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section median leaf inner half, upper surface; note prominent papillae on cells (E1)
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<emphasis bold="true" pageId="0" pageNumber="71">F</emphasis>
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detail of midsection of median leaf, upper surface
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<emphasis bold="true" pageId="0" pageNumber="71">G</emphasis>
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lateral leaf and sections of median leaves, upper surface
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<emphasis bold="true" pageId="0" pageNumber="71">H</emphasis>
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portion of basiscopic margin of lateral leaf, upper surface; note submarginal stomata (a)
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<emphasis bold="true" pageId="0" pageNumber="71">I</emphasis>
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distal half of lateral leaf, upper surface, note short hair on leaf surface (a).
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<emphasis bold="true" pageId="0" pageNumber="71">A-I</emphasis>
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taken from the holotype.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="71" type="materials_examined">
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<paragraph pageId="0" pageNumber="71">Type.</paragraph>
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<paragraph pageId="0" pageNumber="71">
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Venezuela. Amazonas:
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<normalizedToken originalValue="Río">Rio</normalizedToken>
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Negro,
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<normalizedToken originalValue="Río">Rio</normalizedToken>
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Siapa near base of Cerro Aracamuni,
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<geoCoordinate degrees="01" direction="north" minutes="39" orientation="latitude" precision="925" value="1.65">01°39'N</geoCoordinate>
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,
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<geoCoordinate degrees="65" direction="west" minutes="40" orientation="longitude" precision="925" value="-65.666664">65°40'W</geoCoordinate>
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, 250 m, 4 Nov 1987,
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<emphasis italics="true" pageId="0" pageNumber="71">R.L. Liesner & G. Carnevali 22750</emphasis>
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(holotype: NY!; isotypes: MO!, NY!, UC!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="71" type="description">
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<paragraph pageId="0" pageNumber="71">Description.</paragraph>
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<paragraph pageId="0" pageNumber="71">
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<emphasis italics="true" pageId="0" pageNumber="71">Plants</emphasis>
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epipetric, moss-like.
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<emphasis italics="true" pageId="0" pageNumber="71">Stems</emphasis>
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creeping, stramineous, 5.0-15.0 cm long, 0.3-0.5 mm diam., non-articulate, not flagelliform, not stoloniferous, straw-colored, 1 or 2-branched, the branches arising at almost 90° angle.
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<emphasis italics="true" pageId="0" pageNumber="71">Rhizophores</emphasis>
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axillary, axillary-ventral or dorsal, borne throughout the stems, filiform, 0.1-0.2 mm diam.
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<emphasis italics="true" pageId="0" pageNumber="71">Leaves</emphasis>
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heteromorphic throughout, membranaceous, upper surfaces light green, lower surfaces silvery green.
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<emphasis italics="true" pageId="0" pageNumber="71">Lateral leaves</emphasis>
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distant, spreading to slightly ascending or slightly imbricate (at branch tips), ovate, 1.0-2.0
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<normalizedToken originalValue="×">x</normalizedToken>
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0.8-1.6 mm; bases rounded, glabrous, acroscopic bases overlapping stems, basiscopic bases free from stems; margins on upper surfaces greenish and composed of quadrangular to rounded cells, on lower surfaces bordered continuously by a hyaline band comprised of idioblasts, the band 1-3 cells wide, the idioblasts elongate, straight-walled, and papillate, the papillae in a single row over each cell lumen, acroscopic margins long-ciliate along proximal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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-⅔, otherwise dentate distally, basiscopic margins dentate along proximal ⅔, otherwise denticulate distally; apices acute, attenuate to apiculate, apiculae often falling off, tipped by 1 or 2 teeth; upper surfaces mostly glabrous, except for few, distal, teeth-like hairs near apices, comprising rounded to quadrangular, sinuate-walled, papillate cells, each cell lumen with 7-14 papillae, with few (ca. 4) submarginal to marginal stomata near central portion of basiscopic margins, lower surfaces glabrous, comprising elongate, sinuate-walled, laevigate cells and of straight-walled, papillate idioblasts, the papillae 9-15 in one row on each cell lumen, with stomata on 1-3 rows along midribs.
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<emphasis italics="true" pageId="0" pageNumber="71">Median leaves</emphasis>
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distant to slightly imbricate near branch tips, ascending, ovate to broadly ovate to ovate-orbiculate or elliptic with both inner and outer halves equal in width, 0.8-1.2
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<normalizedToken originalValue="×">x</normalizedToken>
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0.5-1.0 mm; bases glabrous, oblique and decurrent, without auricles; inner margins bordered continuously by a narrow hyaline band comprised of idioblasts, the band 1 or 2 cells wide, the idioblasts similar to those in the hyaline marginal bands of the lateral leaves on lower surfaces, except for papillae sometimes interconnecting, long-ciliate along proximal
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<normalizedToken originalValue="¾">3/4</normalizedToken>
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, otherwise short-ciliate to dentate distally, the outer margins bordered by greenish, quadrangular to elongate, glabrous cells along proximal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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and along distal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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by a hyaline band comprised of idioblasts, the band 1-5 cells wide, the idioblast similar to those in the inner margins, dentate throughout; apices aristate, each arista 0.2-0.4 mm long, tipped by 1 or 2 teeth; upper surfaces glabrous, comprising rounded, sinuate-walled, papillate cells, each cell lumen with 4-15 papillae, concentrically arranged, without idioblasts, with stomata in 1 or 2 rows along midribs on distal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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of the leaf lamina and few (1 or 2) marginal to submarginal along proximal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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of outer margins, lower surfaces comprising elongate, sinuate-walled, glabrous cells and submedial to submarginal, sinuate-walled, papillate, idioblasts cells, the papillae similar to those in lower surfaces of lateral leaves, without stomata.
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<emphasis italics="true" pageId="0" pageNumber="71">Axillary leaves</emphasis>
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ovate to ovate-lanceolate, 1.2-1.5
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<normalizedToken originalValue="×">x</normalizedToken>
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0.6-1.0 mm; bases attenuate and covered by idioblasts similar to those in lower surfaces of lateral leaves, except for papillae in 1 or 2 rows on cell lumen; margins on upper and lower surfaces as in lateral leaves, ciliate along proximal
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<normalizedToken originalValue="½-¾">1/2-3/4</normalizedToken>
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; apices acute, attenuate to apiculate, apiculae often falling off; both surfaces as in lateral leaves.
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<emphasis italics="true" pageId="0" pageNumber="71">Strobili</emphasis>
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terminal on branch tips, quadrangular, 0.4-5 mm long.
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<emphasis italics="true" pageId="0" pageNumber="71">Sporophylls</emphasis>
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monomorphic, without a laminar flap, each with a slightly developed keel along midribs, the keel glabrous or with few, short, tooth-like projections distally, ovate-lanceolate, 0.6-1.0
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<normalizedToken originalValue="×">x</normalizedToken>
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0.3-0.5 mm; bases rounded; margins narrowly bordered by a hyaline band, the band 1 or 2 cells wide with the cells elongate, slightly sinuate-walled and glabrous, shortly ciliate along proximal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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, denticulate on distal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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or denticulate throughout; apices attenuate to acuminate, the acumen 0.1-0.3 mm long, tipped by 1 or 2 teeth;
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<emphasis italics="true" pageId="0" pageNumber="71">dorsal sporophylls</emphasis>
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with upper surfaces green and cells as in median leaves, except for the half that overlaps the ventral sporophylls where the surfaces are greenish hyaline to hyaline with elongate and slightly sinuate-walled cells, lower surfaces hyaline and comprising elongate, sinuate-walled cells;
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<emphasis italics="true" pageId="0" pageNumber="71">ventral sporophylls</emphasis>
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with both surfaces, hyaline, comprised of elongate, papillate, sinuate-walled cells.
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<emphasis italics="true" pageId="0" pageNumber="71">Megasporangia</emphasis>
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few and proximal, along two ventral rows;
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<emphasis italics="true" pageId="0" pageNumber="71">megaspores</emphasis>
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yellow, pale yellow to whitish, 270-310
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<normalizedToken originalValue="µm">µm</normalizedToken>
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diam., proximal faces rugulate-reticulate with a well-developed equatorial flange, the microstructure echinate and perforate, distal faces reticulate, the reticulae open (incomplete) to closed, the microstructure echinate and perforate.
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<emphasis italics="true" pageId="0" pageNumber="71">Microsporangia</emphasis>
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in two dorsal rows and distally along two ventral rows;
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<emphasis italics="true" pageId="0" pageNumber="71">microspores</emphasis>
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light orange, not measured or observed in detail.
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</paragraph>
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<caption doi="10.3897/phytokeys.159.55330.figure7" httpUri="https://binary.pensoft.net/fig/449478" pageId="0" pageNumber="71" start="Figure 7" startId="F7">
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<paragraph pageId="0" pageNumber="71">
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<emphasis bold="true" pageId="0" pageNumber="71">Figure 7.</emphasis>
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<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
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<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
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</taxonomicName>
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Valdespino.
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<emphasis bold="true" pageId="0" pageNumber="71">A</emphasis>
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Section of lower surface of stem showing lateral leaves and axillar leaf
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<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
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lateral leaf, lower surface
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<emphasis bold="true" pageId="0" pageNumber="71">C</emphasis>
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proximal half of lateral leaf, upper surface (same leaf shown in
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<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
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)
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<emphasis bold="true" pageId="0" pageNumber="71">D</emphasis>
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distal half of lateral leaf, upper surface (same leaf shown in
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<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
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)
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<emphasis bold="true" pageId="0" pageNumber="71">E</emphasis>
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detail of lateral leaf, lower surface; note elongate, papillate idioblasts with papillae interconnected (a)
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<emphasis bold="true" pageId="0" pageNumber="71">F</emphasis>
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detail of outer half of median leaf, lower surface; note elongate, papillate idioblasts (a)
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<emphasis bold="true" pageId="0" pageNumber="71">G</emphasis>
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axillary leaf and portion of lateral leaves, lower surface
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<emphasis bold="true" pageId="0" pageNumber="71">H</emphasis>
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portion of proximal half of axillary leaf, lower surface (same leaf shown in
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<emphasis bold="true" pageId="0" pageNumber="71">G</emphasis>
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)
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<emphasis bold="true" pageId="0" pageNumber="71">I</emphasis>
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distal half of axillary leaf, lower surface (same leaf shown in
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<emphasis bold="true" pageId="0" pageNumber="71">G</emphasis>
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).
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<emphasis bold="true" pageId="0" pageNumber="71">A-I</emphasis>
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taken from the holotype.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="71" type="habitat">
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<paragraph pageId="0" pageNumber="71">Habitat and distribution.</paragraph>
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<paragraph pageId="0" pageNumber="71">
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<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
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<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
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</taxonomicName>
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grows at 250-1670 m in tropical rainforests at the base of Cerro Aracamuni and near the summit of Cerro Aratitiyope in the state of Amazonas, Venezuela.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="71" type="etymology">
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<paragraph pageId="0" pageNumber="71">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="71">
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The specific epithet derives from the Latin "
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<emphasis italics="true" pageId="0" pageNumber="71">papilla</emphasis>
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," meaning
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<normalizedToken originalValue="“nipple”">"nipple"</normalizedToken>
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, and refers to the abundant and distinctive papillae found on cells lumen in upper, leaf surfaces.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="71" type="conservation status">
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<paragraph pageId="0" pageNumber="71">Conservation status.</paragraph>
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||
<paragraph pageId="0" pageNumber="71">
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
is only known from two collections made at the base of Cerro Aracamuni, a Guiana Highland sandstone tepui, part of the
|
||
<normalizedToken originalValue="Serranía">Serrania</normalizedToken>
|
||
de La Neblina National Park, and near the top of Cerro Aratitiyope, a granitic mountain designated as a Natural Monument, both in the state of Amazonas, Venezuela. Accordingly, the natural populations of this new species may not be threatened. However, as available data is scanty, it does not allow for a reliable conservation assessment. Therefore, the species is considered Data Deficient (DD) based on
|
||
<bibRefCitation author="IUCN" journalOrPublisher="W. Engelmann, Leipzig" pageId="0" pageNumber="71" refId="B5" refString="IUCN, 2012. IUCN Red List Categories and Criteria, Version 3.1. Second edition. Prepared by the IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, United Kingdom." title="IUCN Red List Categories and Criteria, Version 3.1. Second edition. Prepared by the IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, United Kingdom." year="2012">IUCN (2012)</bibRefCitation>
|
||
.
|
||
</paragraph>
|
||
<caption doi="10.3897/phytokeys.159.55330.figure8" httpUri="https://binary.pensoft.net/fig/449479" pageId="0" pageNumber="71" start="Figure 8" startId="F8">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<emphasis bold="true" pageId="0" pageNumber="71">Figure 8.</emphasis>
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
Valdespino.
|
||
<emphasis bold="true" pageId="0" pageNumber="71">A</emphasis>
|
||
Megaspore, proximal face
|
||
<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
|
||
detail of megaspore, proximal face
|
||
<emphasis bold="true" pageId="0" pageNumber="71">C</emphasis>
|
||
megaspore, distal face
|
||
<emphasis bold="true" pageId="0" pageNumber="71">D</emphasis>
|
||
detail of megaspore, distal face.
|
||
<emphasis bold="true" pageId="0" pageNumber="71">A-D</emphasis>
|
||
taken from the holotype.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="materials_examined">
|
||
<paragraph pageId="0" pageNumber="71">Additional specimens examined (paratypes).</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
Venezuela.
|
||
<emphasis bold="true" pageId="0" pageNumber="71">Amazonas</emphasis>
|
||
:
|
||
<normalizedToken originalValue="Río">Rio</normalizedToken>
|
||
Negro, Cerro Aratitiyope, ca. 70 km al SSW de Ocamo,
|
||
<geoCoordinate degrees="02" direction="north" minutes="10" orientation="latitude" precision="925" value="2.1666667">02°10'N</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="65" direction="west" minutes="34" orientation="longitude" precision="925" value="-65.566666">65°34'W</geoCoordinate>
|
||
, 990-1670 m, 24-28 Feb 1984,
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Steyermark et al. 130146</emphasis>
|
||
(MO-2 sheets, UC pp [mixed with some scraps of
|
||
<taxonomicName lsidName="S. tuberculata" pageId="0" pageNumber="71" rank="species" species="tuberculata">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. tuberculata</emphasis>
|
||
</taxonomicName>
|
||
Spruce ex Baker]).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="discussion">
|
||
<paragraph pageId="0" pageNumber="71">Discussion.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
is distinctive by its moss-like habit, lateral leaf with long-ciliate acroscopic margins along proximal
|
||
<normalizedToken originalValue="½">1/2</normalizedToken>
|
||
-⅔ and acute, attenuate to apiculate apices, with apiculae often falling off and tipped by 1 or 2 teeth, the upper surfaces glabrous, except for few, distal, teeth-like hairs near apices, and with few submarginal to marginal stomata near central portion of basiscopic margins. In addition, its leaf upper surfaces are comprised by rounded to quadrangular, sinuate-walled, papillate cells, each cell lumen with many (i.e., 7-14) papillae, and with margins bordered by elongate, straight-walled, papillate idioblasts on lower leaf surfaces. Finally, its median leaf upper surfaces have marginal to submarginal stomata along proximal
|
||
<normalizedToken originalValue="½">1/2</normalizedToken>
|
||
of outer margins.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
is a member of the "
|
||
<taxonomicName class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella deltoides" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="deltoides">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella deltoides</emphasis>
|
||
</taxonomicName>
|
||
group" as defined by
|
||
<bibRefCitation DOI="https://doi.org/10.1111/njb.00954" author="Valdespino, IA" journalOrPublisher="Nordic Journal of Botany" pageId="0" pageNumber="71" pagination="370 - 375" refId="B15" refString="Valdespino, IA, 2016. Selaginella aculeatifolia sp. nov. (Selaginellaceae - Lycopodiophyta) from the foothills of Cerro Neblina, Venezuela. Nordic Journal of Botany 34 (3): 370 - 375, DOI: https://doi.org/10.1111/njb.00954" title="Selaginella aculeatifolia sp. nov. (Selaginellaceae - Lycopodiophyta) from the foothills of Cerro Neblina, Venezuela." url="https://doi.org/10.1111/njb.00954" volume="34" year="2016">Valdespino (2016)</bibRefCitation>
|
||
. Among species in that alliance it is morphologically close (e.g. in habit, leaf, and overall megaspore sculpturing pattern) to
|
||
<taxonomicName lsidName="S. aculeatifolia" pageId="0" pageNumber="71" rank="species" species="aculeatifolia">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. aculeatifolia</emphasis>
|
||
</taxonomicName>
|
||
and the here described
|
||
<taxonomicName lsidName="S. pubimarginata" pageId="0" pageNumber="71" rank="species" species="pubimarginata">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. pubimarginata</emphasis>
|
||
</taxonomicName>
|
||
(see for discussion). These three species might, in addition, be sympatric, as they have been collected in the Guiana Highland region of Venezuela at similar low to mid elevations.
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName lsidName="S. aculeatifolia" pageId="0" pageNumber="71" rank="species" species="aculeatifolia">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. aculeatifolia</emphasis>
|
||
</taxonomicName>
|
||
by its lateral leaf upper surfaces with few (vs. without) submarginal stomata along central, basiscopic portion of the laminae, with 3-5 (vs. many, ca. 50) short hairs or tooth-like projections near distal most portion of apices (vs. along distal
|
||
<normalizedToken originalValue="½">1/2</normalizedToken>
|
||
of basiscopic halves and apices), with midribs inconspicuous (vs. conspicuous, outlined by elongate, straight-walled and papillate idioblasts), and acute to apiculate (vs. long-acuminate) apices. It is further differentiated from the latter by its median leaves broadly ovate to ovate-orbiculate or elliptic (vs. broadly ovate to ovate-elliptic), with oblique and decurrent (vs. oblique or rounded) bases, and stomata present on upper leaf surfaces along distal
|
||
<normalizedToken originalValue="½">1/2</normalizedToken>
|
||
(vs.
|
||
<normalizedToken originalValue="¾">3/4</normalizedToken>
|
||
) and with few (vs. without) stomata submarginally to marginally along proximal
|
||
<normalizedToken originalValue="½">1/2</normalizedToken>
|
||
portion of outer margins. Furthermore, its megaspores proximal and distal faces microstructure consists of long- (vs. short-) echinae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
was confused in the past with
|
||
<taxonomicName lsidName="S. brevifolia" pageId="0" pageNumber="71" rank="species" species="brevifolia">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. brevifolia</emphasis>
|
||
</taxonomicName>
|
||
and, in fact, its type collection was originally identified as the latter species.
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName lsidName="S. brevifolia" pageId="0" pageNumber="71" rank="species" species="brevifolia">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. brevifolia</emphasis>
|
||
</taxonomicName>
|
||
by the characters listed in the diagnosis and by its lateral leaf having only very few, i.e., 4-6 tooth-like short hairs near the apices, whereas the latter species has many of these hairs along the basiscopic halves of the laminae and toward the apices.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
is also set aside from the similar
|
||
<taxonomicName lsidName="S. albolineata" pageId="0" pageNumber="71" rank="species" species="albolineata">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. albolineata</emphasis>
|
||
</taxonomicName>
|
||
by its median and lateral leaves upper surfaces without (with many, elongate) idioblasts and acroscopic margins long-ciliate along proximal
|
||
<normalizedToken originalValue="½">1/2</normalizedToken>
|
||
-⅔, otherwise denticulate distally (vs. entire to scarcely denticulate throughout), and median leaf inner margins long-ciliate (vs. denticulate).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
The paratype specimen of
|
||
<taxonomicName lsidName="S. papillosa" pageId="0" pageNumber="71" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. papillosa</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Steyermark et al. 130146</emphasis>
|
||
at MO) was originally identified as
|
||
<taxonomicName lsidName="S. revoluta" pageId="0" pageNumber="71" rank="species" species="revoluta">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. revoluta</emphasis>
|
||
</taxonomicName>
|
||
Baker, vel aff., a species that is the center of a species group described by
|
||
<bibRefCitation author="Mickel, JT" editor="Mickel, JT" journalOrPublisher="Memoirs of the New York Botanical Garden" pageId="0" pageNumber="71" pagination="550 - 602" refId="B7" refString="Mickel, JT, Smith, AR, Valdespino, IA, 2004. Selaginella. In: Mickel, JT, Smith, AR, Eds., The pteridophytes of Mexico. Memoirs of the New York Botanical Garden 88: 550 - 602" title="Selaginella." volume="88" volumeTitle="The pteridophytes of Mexico." year="2004">Mickel et al. (2004)</bibRefCitation>
|
||
.
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
is a rather more slender species than
|
||
<taxonomicName lsidName="S. revoluta" pageId="0" pageNumber="71" rank="species" species="revoluta">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. revoluta</emphasis>
|
||
</taxonomicName>
|
||
and differs further from the latter by its median leaves ovate to broadly ovate to ovate-orbiculate or elliptic (vs. broadly ovate, ovate orbicular to ovate-rhombic) with oblique to decurrent (vs. subcordate) bases, and apices with rather narrow and needle-like (vs. broad and subulate) long aristae, each without (vs. with tooth-like) hairs on its surfaces. Finally,
|
||
<taxonomicName lsidName="S. papillosa" pageId="0" pageNumber="71" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. papillosa</emphasis>
|
||
</taxonomicName>
|
||
could also be compared to
|
||
<taxonomicName lsidName="S. hirtifolia" pageId="0" pageNumber="71" rank="species" species="hirtifolia">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. hirtifolia</emphasis>
|
||
</taxonomicName>
|
||
Valdespino, which is not morphologically close to it but rather is a member of the
|
||
<taxonomicName lsidName="S. revoluta" pageId="0" pageNumber="71" rank="species" species="revoluta">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. revoluta</emphasis>
|
||
</taxonomicName>
|
||
group.
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
is easily separated from the latter by its lateral leaf upper surfaces almost completely glabrous (vs. with short, teeth-like hairs along the basiscopic, submarginal region and near apices) and long-aristate (vs. acuminate) median leaf apices with the arista hyaline (vs. with the acumen green).
|
||
</paragraph>
|
||
<caption doi="10.3897/phytokeys.159.55330.figure9" httpUri="https://binary.pensoft.net/fig/449480" pageId="0" pageNumber="71" start="Figure 9" startId="F9">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<emphasis bold="true" pageId="0" pageNumber="71">Figure 9.</emphasis>
|
||
Distribution of
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2020" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella papillosa" order="Selaginellales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="papillosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Selaginella papillosa</emphasis>
|
||
</taxonomicName>
|
||
*,
|
||
<taxonomicName lsidName="S. pubimarginata" pageId="0" pageNumber="71" rank="species" species="pubimarginata">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. pubimarginata</emphasis>
|
||
</taxonomicName>
|
||
◊,
|
||
<taxonomicName lsidName="S. rostrata" pageId="0" pageNumber="71" rank="species" species="rostrata">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">S. rostrata</emphasis>
|
||
</taxonomicName>
|
||
■.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |