356 lines
32 KiB
XML
356 lines
32 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.50.4873" ID-PMC="PMC4489085" ID-Pensoft-Pub="1314-2003-50-61" ID-Pensoft-UUID="FFB1FFBCFF9CFFDDE37D7217FF84FF94" ID-PubMed="26140021" ID-Zenodo-Dep="576278" ModsDocID="1314-2003-50-61" checkinTime="1451251517643" checkinUser="pensoft" docAuthor="Valdespino, Ivan A., Heringer, Gustavo, Salino, Alexandre, Goes-Neto, Luiz A. de Araujo & Ceballos, Jorge" docDate="2015" docId="E235624F30917B834F4D0A5A914A1A6D" docLanguage="en" docName="PhytoKeys 50: 61-99" docOrigin="PhytoKeys 50" docPubDate="2015-06-16" docSource="http://dx.doi.org/10.3897/phytokeys.50.4873" docTitle="Selaginella alstonii G. Heringer, Salino & Valdespino 2015, sp. nov." docType="treatment" docVersion="6" id="FFB1FFBCFF9CFFDDE37D7217FF84FF94" lastPageNumber="64" masterDocId="FFB1FFBCFF9CFFDDE37D7217FF84FF94" masterDocTitle="Seven new species of Selaginella subg. Stachygynandrum (Selaginellaceae) from Brazil and new synonyms for the genus" masterLastPageNumber="99" masterPageNumber="61" pageNumber="64" updateTime="1668141371619" 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>Seven new species of Selaginella subg. Stachygynandrum (Selaginellaceae) from Brazil and new synonyms for the genus</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</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>Heringer, Gustavo</mods:namePart>
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<mods:affiliation>Pos-Graduacao em Botanica, Departamento de Biologia Vegetal, Universidade Federal de Vicosa, CEP 36.570 - 000 Vicosa, Minas Gerais, Brazil</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>Salino, Alexandre</mods:namePart>
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<mods:affiliation>Departamento de Botanica, Instituto de Ciencias Biologicas, Universidade Federal de Minas Gerais, CP 486, 31270 - 901, Belo Horizonte, MG, Brazil</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>Goes-Neto, Luiz A. de Araujo</mods:namePart>
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<mods:affiliation>Departamento de Botanica, Instituto de Ciencias Biologicas, Universidade Federal de Minas Gerais, CP 486, 31270 - 901, Belo Horizonte, MG, Brazil</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>Ceballos, Jorge</mods:namePart>
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<mods:affiliation>Smithsonian Tropical Research Institute, Apartado Postal 0843 - 03092, Panama</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>2015</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2015-06-16</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>50</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>61</mods:start>
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<mods:end>99</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.50.4873</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.50.4873</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-50-61</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FFB1FFBCFF9CFFDDE37D7217FF84FF94</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576278</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152025792" LSID="urn:lsid:plazi:treatment:E235624F30917B834F4D0A5A914A1A6D" httpUri="http://treatment.plazi.org/id/E235624F30917B834F4D0A5A914A1A6D" lastPageNumber="64" pageId="3" pageNumber="64">
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<subSubSection pageId="3" pageNumber="64" type="nomenclature">
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<paragraph pageId="3" pageNumber="64">
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<taxonomicName LSID="E235624F-3091-7B83-4F4D-0A5A914A1A6D" authority="G. Heringer, Salino & Valdespino" authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii" status="sp. nov.">Selaginella alstonii G. Heringer, Salino & Valdespino</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="64">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Selaginella alstonii G. Heringer, Salino & Valdespino. A Section of upper surface of stem B Upper surface of median leaf C Section of lower surface of stem D Lower surface of lateral leaf. A-D taken from isotype, Almeida et al. 533 (PMA)." figureDoi="10.3897/phytokeys.50.4873.figure1" httpUri="https://binary.pensoft.net/fig/45213" pageId="3" pageNumber="64">Figures 1</figureCitation>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Selaginella alstonii G. Heringer, Salino & Valdespino. A Megaspore proximal face B Close-up of megaspore proximal face surface C Megaspore distal face D Close-up of megaspore distal face surface E Microspore proximal face F Microspore distal face G Close-up of microspore distal face surface H Close-up of microspore equatorial view surface A-H taken from isotype, Almeida et al. 533 (PMA)." figureDoi="10.3897/phytokeys.50.4873.figure2" httpUri="https://binary.pensoft.net/fig/45214" pageId="3" pageNumber="64">, 2</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="diagnosis">
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<paragraph pageId="3" pageNumber="64">Diagnosis.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
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<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
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</taxonomicName>
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resembles
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<taxonomicName authorityName="Bak" authorityYear="1883" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella acanthostachys" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="acanthostachys">
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<emphasis italics="true" pageId="3" pageNumber="64">Selaginella acanthostachys</emphasis>
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</taxonomicName>
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Baker, from which it differs by having the upper surfaces of the lateral leaves glabrous (vs. hairy near basiscopic margins), median leaves acuminate to short-aristate (vs. long-aristate) with each acumen (arista)
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<normalizedToken originalValue="¼">1/4</normalizedToken>
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or less the lamina length (vs. arista ⅓-
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<normalizedToken originalValue="½">1/2</normalizedToken>
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), with the outer and inner hyaline margins about the same width (vs. outer margin almost twice as wide as the inner one), and non stoloniferous stems (vs. stoloniferous).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="type">
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<paragraph pageId="3" pageNumber="64">Type.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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<emphasis bold="true" pageId="3" pageNumber="64">BRAZIL</emphasis>
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. Minas Gerais: Santo
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<normalizedToken originalValue="Antônio">Antonio</normalizedToken>
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do
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<normalizedToken originalValue="Itambé">Itambe</normalizedToken>
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, Parque Estadual do Pico do
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<normalizedToken originalValue="Itambé">Itambe</normalizedToken>
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,
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<geoCoordinate degrees="18" direction="south" minutes="23" orientation="latitude" precision="1" seconds="50,4" value="-18.397333">18°23'50,4"S</geoCoordinate>
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,
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<geoCoordinate degrees="43" direction="west" minutes="19" orientation="longitude" precision="1" seconds="55,5" value="-43.33208">43°19'55,5"W</geoCoordinate>
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, 1676 m, 5 Oct 2006,
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<emphasis italics="true" pageId="3" pageNumber="64">T.E. Almeida et al. 533</emphasis>
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(holotype: BHCB!; isotype: PMA!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="description">
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<paragraph pageId="3" pageNumber="64">Description.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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<emphasis italics="true" pageId="3" pageNumber="64">Plants</emphasis>
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epipetric.
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<emphasis italics="true" pageId="3" pageNumber="64">Stems</emphasis>
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prostrate to ascending, greenish to stramineous, to 10 cm long, 0.3-0.6 mm diam., exarticulate, not flagelliform or stoloniferous, 2- or 3-branched.
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<emphasis italics="true" pageId="3" pageNumber="64">Rhizophores</emphasis>
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ventral, borne on the proximal ⅔ of stems, filiform, 0.1-0.2 mm diam.
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<emphasis italics="true" pageId="3" pageNumber="64">Leaves</emphasis>
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heteromorphic throughout, chartaceous, both surfaces glabrous, upper surfaces green, lower surfaces silvery green.
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<emphasis italics="true" pageId="3" pageNumber="64">Lateral leaves</emphasis>
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distant, spreading to slightly ascending, oblong to oblong-lanceolate, 1.1-2.0
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<normalizedToken originalValue="×">x</normalizedToken>
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0.4-1.0 mm; bases rounded, acroscopic bases overlapping stems, basiscopic bases free from stems; acroscopic margins on upper surfaces hyaline along proximal
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<normalizedToken originalValue="½-¾">1/2-3/4</normalizedToken>
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in a band 1 or 2 cells wide, the cells elongate and papillate parallel to margins, papillae in 1 row over each cell lumen, otherwise greenish distally with rounded to quadrangular, sinuate-walled cells, on lower surfaces hyaline in a band 2-5 cells wide, the cells elongate and papillate parallel to margins, papillae in 1 row over each cell lumen, short-ciliate along proximal ⅓-
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<normalizedToken originalValue="½">1/2</normalizedToken>
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, otherwise serrate distally, basiscopic margins greenish on upper surfaces with rounded to quadrangular, sinuate-walled cells and on lower surfaces with elongate, sinuate-walled cells, entire along proximal
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<normalizedToken originalValue="¾">3/4</normalizedToken>
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and serrulate on distal
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<normalizedToken originalValue="¼">1/4</normalizedToken>
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; apices acute to slightly cuspidate, each cusp 0.02-0.03 mm, tipped by 1-3 teeth; upper surfaces comprising rounded to quadrangular, sinuate-walled cells, without idioblasts or stomata, lower surfaces comprising elongate, sinuate-walled cells, with some obscure, papillate idioblasts and stomata along central portion of midribs and along basiscopic margins.
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<emphasis italics="true" pageId="3" pageNumber="64">Median leaves</emphasis>
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distant to slightly imbricate near the branch tips, ascending, elliptic to elliptic-lanceolate or ovate-elliptic, 0.7-1.4
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<normalizedToken originalValue="×">x</normalizedToken>
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0.4-0.7 mm; bases oblique; margins hyaline in a band 2-5 cells wide, the cells elongate and papillate parallel to margins, papillae in 1 row over each cell lumen, inner margins serrate to short-ciliate, outer margins entire along proximal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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, otherwise serrate to short-ciliate distally; apices acuminate to short-aristate, each acumen (arista) 0.15-0.2 mm, entire or obscurely tipped by 1-3 teeth; both surfaces without conspicuous idioblasts, upper surfaces comprising quadrangular to rounded, sinuate-walled cells, some of these covered by 10-20 papillae, with stomata along midribs on distal half and submarginal and marginal along proximal half of outer margins, lower surfaces comprising elongate, sinuate-walled cells, without stomata.
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<emphasis italics="true" pageId="3" pageNumber="64">Axillary leaves</emphasis>
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similar to lateral leaves but with both margins ciliate along proximal
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<normalizedToken originalValue="¼">1/4</normalizedToken>
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, otherwise short-ciliate to serrate distally.
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<emphasis italics="true" pageId="3" pageNumber="64">Strobili</emphasis>
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terminal on branch tips, compact, quadrangular, 1.5-4.0 mm.
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<emphasis italics="true" pageId="3" pageNumber="64">Sporophylls</emphasis>
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monomorphic, without a laminar flap, ovate to ovate-lanceolate, 0.7-1.1
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<normalizedToken originalValue="×">x</normalizedToken>
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0.4-0.6 mm, each with a dentate (teeth often caducous) keel along distal
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<normalizedToken originalValue="½">1/2</normalizedToken>
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of the midribs; bases rounded; margins narrowly hyaline, serrate; apices acute, entire or obscurely tipped by 1-3 teeth;
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<emphasis italics="true" pageId="3" pageNumber="64">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, there hyaline with elongate, sinuate-walled cells, lower surfaces silvery green and comprising elongate, sinuate-walled cells;
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<emphasis italics="true" pageId="3" pageNumber="64">ventral sporophylls</emphasis>
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with both surfaces hyaline to faintly greenish hyaline, comprising elongate, sinuate-walled cells.
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<emphasis italics="true" pageId="3" pageNumber="64">Megasporangia</emphasis>
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in proximal portion in 2 ventral rows;
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<emphasis italics="true" pageId="3" pageNumber="64">megaspores</emphasis>
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cream, with a cristate equatorial flange, rugulate on proximal faces, reticulate with low, cristate ridges on distal faces, with areolate-perforate microstructure on both faces, 250-300
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<normalizedToken originalValue="μm">μm</normalizedToken>
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diam.
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<emphasis italics="true" pageId="3" pageNumber="64">Microsporangia</emphasis>
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in 2 dorsal rows and, in distal portion, also in 2 ventral rows;
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<emphasis italics="true" pageId="3" pageNumber="64">microspores</emphasis>
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orange, psilate marginally and verrucate-rugulate towards the center with psilate microstructure on proximal faces, clavate (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Selaginella alstonii G. Heringer, Salino & Valdespino. A Megaspore proximal face B Close-up of megaspore proximal face surface C Megaspore distal face D Close-up of megaspore distal face surface E Microspore proximal face F Microspore distal face G Close-up of microspore distal face surface H Close-up of microspore equatorial view surface A-H taken from isotype, Almeida et al. 533 (PMA)." figureDoi="10.3897/phytokeys.50.4873.figure2" httpUri="https://binary.pensoft.net/fig/45214" pageId="3" pageNumber="64">2G, H</figureCitation>
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) or echinulate to baculate (if apices of projected elements broken off, Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Selaginella alstonii G. Heringer, Salino & Valdespino. A Megaspore proximal face B Close-up of megaspore proximal face surface C Megaspore distal face D Close-up of megaspore distal face surface E Microspore proximal face F Microspore distal face G Close-up of microspore distal face surface H Close-up of microspore equatorial view surface A-H taken from isotype, Almeida et al. 533 (PMA)." figureDoi="10.3897/phytokeys.50.4873.figure2" httpUri="https://binary.pensoft.net/fig/45214" pageId="3" pageNumber="64">2F, H</figureCitation>
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) with striate to striate-reticulate microstructure on distal faces, 27-33
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<normalizedToken originalValue="μm">μm</normalizedToken>
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diam.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="habitat and distribution">
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<paragraph pageId="3" pageNumber="64">Habitat and distribution.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
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<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
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</taxonomicName>
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is epipetric on rocky caves in Campos Rupestres vegetation; the type and paratype were collected at an elevation range of 1676-1810 m. The species is known only from Parque Estadual do Pico do
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<normalizedToken originalValue="Itambé">Itambe</normalizedToken>
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in Serra do
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<normalizedToken originalValue="Espinhaço">Espinhaco</normalizedToken>
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, Minas Gerais, Brazil, where it may be a local endemic.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="etymology">
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<paragraph pageId="3" pageNumber="64">Etymology.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
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<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
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</taxonomicName>
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is named for Arthur Hugh Garfit Alston (1902-1958), a British pteridologist and one of the
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<normalizedToken originalValue="world’s">world's</normalizedToken>
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authorities on the genus
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<taxonomicName class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="genus">
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<emphasis italics="true" pageId="3" pageNumber="64">Selaginella</emphasis>
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</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="conservation status">
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<paragraph pageId="3" pageNumber="64">Conservation status.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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There is limited information on the conservation status and range distribution of
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<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
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<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
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</taxonomicName>
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. Nevertheless, given that the localities where this species is presently known are located within the
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<normalizedToken originalValue="Espinhaço">Espinhaco</normalizedToken>
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Mountain Range, a habitat threatened by human activities (
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<bibRefCitation author="Rapini, A" journalOrPublisher="Megadiversidade" pageId="24" pageNumber="85" pagination="16 - 23" publicationUrl="http://www.conservation.org.br/publicacoes/files_mega4/02_a_flora_dos_campos_rupestres_da_cadeia_do_espinhaco.pdf" refId="B20" refString="Rapini, A, Ribeiro, PL, Lambert, S, Pirani, JR, 2008. A flora dos campos rupestres da Cadeia do Espinhaco. Megadiversidade 4 (1-2): 16 - 23, http://www.conservation.org.br/publicacoes/files_mega4/02_a_flora_dos_campos_rupestres_da_cadeia_do_espinhaco.pdf" title="A flora dos campos rupestres da Cadeia do Espinhaco." url="http://www.conservation.org.br/publicacoes/files_mega4/02_a_flora_dos_campos_rupestres_da_cadeia_do_espinhaco.pdf" volume="4" year="2008">Rapini et al 2008</bibRefCitation>
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), we tentatively consider it vulnerable (VU) according to
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<bibRefCitation author="IUCN" journalOrPublisher="IUCN, Gland, Switzerland and Cambridge, United Kingdom" pageId="23" pageNumber="84" refId="B10" 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" year="2012">IUCN (2012)</bibRefCitation>
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categories and criteria.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="additional specimen examined (paratype)">
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<paragraph pageId="3" pageNumber="64">Additional specimen examined (paratype).</paragraph>
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<paragraph pageId="3" pageNumber="64">
|
||
<emphasis bold="true" pageId="3" pageNumber="64">BRAZIL</emphasis>
|
||
.
|
||
<emphasis bold="true" pageId="3" pageNumber="64">Minas Gerais</emphasis>
|
||
: Santo
|
||
<normalizedToken originalValue="Antônio">Antonio</normalizedToken>
|
||
do
|
||
<normalizedToken originalValue="Itambé">Itambe</normalizedToken>
|
||
, Parque Estadual do Pico do
|
||
<normalizedToken originalValue="Itambé">Itambe</normalizedToken>
|
||
,
|
||
<geoCoordinate degrees="18" direction="south" minutes="23" orientation="latitude" precision="1" seconds="50,4" value="-18.397333">18°23'50,4"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="43" direction="west" minutes="19" orientation="longitude" precision="1" seconds="55,5" value="-43.33208">43°19'55,5"W</geoCoordinate>
|
||
, 1810 m, 5 Oct 2006,
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Almeida et al. 535</emphasis>
|
||
(BHCB).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="3" pageNumber="64" type="discussion">
|
||
<paragraph pageId="3" pageNumber="64">Discussion.</paragraph>
|
||
<paragraph pageId="3" pageNumber="64">
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
belongs to subg.
|
||
<taxonomicName class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="(Stachygynandrum)" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="subGenus" subGenus="Stachygynandrum">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Stachygynandrum</emphasis>
|
||
</taxonomicName>
|
||
and is characterized by its oblong to oblong-lanceolate lateral leaves with acroscopic margins short-ciliate along proximal ⅓-
|
||
<normalizedToken originalValue="½">1/2</normalizedToken>
|
||
and elliptic to elliptic-lanceolate or ovate-elliptic median leaves with oblique bases (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Selaginella alstonii G. Heringer, Salino & Valdespino. A Section of upper surface of stem B Upper surface of median leaf C Section of lower surface of stem D Lower surface of lateral leaf. A-D taken from isotype, Almeida et al. 533 (PMA)." figureDoi="10.3897/phytokeys.50.4873.figure1" httpUri="https://binary.pensoft.net/fig/45213" pageId="3" pageNumber="64">1</figureCitation>
|
||
). Dried specimens of
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
tend to develop a groove along midribs of lateral leaves (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Selaginella alstonii G. Heringer, Salino & Valdespino. A Section of upper surface of stem B Upper surface of median leaf C Section of lower surface of stem D Lower surface of lateral leaf. A-D taken from isotype, Almeida et al. 533 (PMA)." figureDoi="10.3897/phytokeys.50.4873.figure1" httpUri="https://binary.pensoft.net/fig/45213" pageId="3" pageNumber="64">1A</figureCitation>
|
||
), but it remains to be confirmed if this is a character observed in living plants or an artifact when plants are dried. The surfaces of the median and lateral leaves of
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
do not show conspicuous idioblasts when observed with a stereoscope, but on SEM micrographs, idioblast-like, papillate elongate cells are observed on the lower surfaces of lateral leaves, with papillae in 1 row over each cell lumen, parallel to the midribs (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Selaginella alstonii G. Heringer, Salino & Valdespino. A Section of upper surface of stem B Upper surface of median leaf C Section of lower surface of stem D Lower surface of lateral leaf. A-D taken from isotype, Almeida et al. 533 (PMA)." figureDoi="10.3897/phytokeys.50.4873.figure1" httpUri="https://binary.pensoft.net/fig/45213" pageId="3" pageNumber="64">1D</figureCitation>
|
||
). Additionally, in some median leaves, the outer bases have 2-4 short cilia. In some plants of
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
, as well as in
|
||
<taxonomicName authorityName="Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella saltuicola" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="saltuicola">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella saltuicola</emphasis>
|
||
</taxonomicName>
|
||
(which see for discussion), we observed vegetative growth from the tips of some strobili.
|
||
</paragraph>
|
||
<paragraph pageId="3" pageNumber="64">
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
resembles
|
||
<taxonomicName authorityName="Bak" authorityYear="1883" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella acanthostachys" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="acanthostachys">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella acanthostachys</emphasis>
|
||
</taxonomicName>
|
||
from Colombia, Ecuador, and Peru; however the characters given in the diagnosis separate them. Among other species of
|
||
<taxonomicName class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="genus">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella</emphasis>
|
||
</taxonomicName>
|
||
from Minas Gerais,
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
may be confused with
|
||
<taxonomicName class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella decomposita" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="decomposita">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella decomposita</emphasis>
|
||
</taxonomicName>
|
||
Spring because of their similar texture and shape of the lateral leaves.
|
||
<taxonomicName class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella decomposita" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="decomposita">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella decomposita</emphasis>
|
||
</taxonomicName>
|
||
, however, has an ascending to erect habit and is a more robust plant.
|
||
</paragraph>
|
||
<caption ID-Zenodo-Dep="963551" doi="10.3897/phytokeys.50.4873.figure1" httpUri="https://binary.pensoft.net/fig/45213" pageId="3" pageNumber="64" start="Figure 1" startId="F1">
|
||
<paragraph pageId="3" pageNumber="64">
|
||
<emphasis bold="true" pageId="3" pageNumber="64">Figure 1.</emphasis>
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
G. Heringer, Salino & Valdespino.
|
||
<emphasis bold="true" pageId="3" pageNumber="64">A</emphasis>
|
||
Section of upper surface of stem
|
||
<emphasis bold="true" pageId="3" pageNumber="64">B</emphasis>
|
||
Upper surface of median leaf
|
||
<emphasis bold="true" pageId="3" pageNumber="64">C</emphasis>
|
||
Section of lower surface of stem
|
||
<emphasis bold="true" pageId="3" pageNumber="64">D</emphasis>
|
||
Lower surface of lateral leaf.
|
||
<emphasis bold="true" pageId="3" pageNumber="64">A-D</emphasis>
|
||
taken from isotype,
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Almeida et al. 533</emphasis>
|
||
(PMA).
|
||
</paragraph>
|
||
</caption>
|
||
<caption ID-Zenodo-Dep="963565" doi="10.3897/phytokeys.50.4873.figure2" httpUri="https://binary.pensoft.net/fig/45214" pageId="3" pageNumber="64" start="Figure 2" startId="F2">
|
||
<paragraph pageId="3" pageNumber="64">
|
||
<emphasis bold="true" pageId="3" pageNumber="64">Figure 2.</emphasis>
|
||
<taxonomicName authorityName="G. Heringer, Salino & Valdespino" authorityYear="2015" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Selaginella alstonii" order="Selaginellales" pageId="3" pageNumber="64" phylum="Lycopodiophyta" rank="species" species="alstonii">
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Selaginella alstonii</emphasis>
|
||
</taxonomicName>
|
||
G. Heringer, Salino & Valdespino.
|
||
<emphasis bold="true" pageId="3" pageNumber="64">A</emphasis>
|
||
Megaspore proximal face
|
||
<emphasis bold="true" pageId="3" pageNumber="64">B</emphasis>
|
||
Close-up of megaspore proximal face surface
|
||
<emphasis bold="true" pageId="3" pageNumber="64">C</emphasis>
|
||
Megaspore distal face
|
||
<emphasis bold="true" pageId="3" pageNumber="64">D</emphasis>
|
||
Close-up of megaspore distal face surface
|
||
<emphasis bold="true" pageId="3" pageNumber="64">E</emphasis>
|
||
Microspore proximal face
|
||
<emphasis bold="true" pageId="3" pageNumber="64">F</emphasis>
|
||
Microspore distal face
|
||
<emphasis bold="true" pageId="3" pageNumber="64">G</emphasis>
|
||
Close-up of microspore distal face surface
|
||
<emphasis bold="true" pageId="3" pageNumber="64">H</emphasis>
|
||
Close-up of microspore equatorial view surface
|
||
<emphasis bold="true" pageId="3" pageNumber="64">A-H</emphasis>
|
||
taken from isotype,
|
||
<emphasis italics="true" pageId="3" pageNumber="64">Almeida et al. 533</emphasis>
|
||
(PMA).
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |