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<document ID-DOI="10.5252/cryptogamie-algologie2021v42a11" ID-GBIF-Dataset="3b864c7d-db64-44d5-b448-f929b1261cc8" ID-ISSN="1776-0992" ID-Zenodo-Dep="7819225" checkinTime="1681241972584" checkinUser="felipe" docAuthor="Peña, Viviana, R, Tamara, G, uiz de &amp; Torres, auna" docDate="2021" docId="03E4DD6B7F3AFFE5B0D6F9EBFD91F957" docLanguage="en" docName="CryptogamieAlgologie.42.11.153-172.pdf" docOrigin="Cryptogamie, Bryologie 20 (11)" docStyle="DocumentStyle:C31C23F805CBAD2BB1C6021F66949308:CryptogamieAlgologie.2019-.journal_article" docStyleId="C31C23F805CBAD2BB1C6021F66949308" docStyleName="CryptogamieAlgologie.2019-.journal_article" docTitle="Lithophyllum artabricum V. Pena 2021, sp. nov." docType="treatment" docVersion="2" lastPageNumber="158" masterDocId="FFDDA5137F3CFFE2B035FFD9FF05FFDA" masterDocTitle="Lithophyllum artabricum V. Peña, sp. nov. (Corallinales, Rhodophyta): a cryptic species in the Atlantic Iberian Peninsula hitherto assigned to Lithophyllum stictiforme (Areschoug) Hauck" masterLastPageNumber="172" masterPageNumber="153" pageNumber="157" updateTime="1681242581037" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0" zenodo-license-treatments="UNSPECIFIED">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Lithophyllum artabricum V. Peña, sp. nov. (Corallinales, Rhodophyta): a cryptic species in the Atlantic Iberian Peninsula hitherto assigned to Lithophyllum stictiforme (Areschoug) Hauck</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Peña, Viviana</mods:namePart>
<mods:affiliation>BioCost Research Group, Facultad de Ciencias and Centro de Investigaciones Científicas Avanzadas (CICA), Universidad de A Coruña, 15071, A Coruña (Spain) and Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum national dHistoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, 57 rue Cuvier, CP 39 75005, Paris (France) vpena @ udc. es (corresponding author)</mods:affiliation>
<mods:nameIdentifier type="email">vpena@udc.es</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>R, Tamara</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>G, uiz de</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Torres, auna</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Cryptogamie, Bryologie</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2021</mods:date>
<mods:detail type="pubDate">
<mods:number>2021-07-23</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>20</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>11</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>153</mods:start>
<mods:end>172</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">10.5252/cryptogamie-algologie2021v42a11</mods:identifier>
<mods:identifier type="GBIF-Dataset">3b864c7d-db64-44d5-b448-f929b1261cc8</mods:identifier>
<mods:identifier type="ISSN">1776-0992</mods:identifier>
<mods:identifier type="Zenodo-Dep">7819225</mods:identifier>
</mods:mods>
<treatment ID-DOI="http://doi.org/10.5281/zenodo.7819249" ID-Zenodo-Dep="7819249" LSID="urn:lsid:plazi:treatment:03E4DD6B7F3AFFE5B0D6F9EBFD91F957" httpUri="http://treatment.plazi.org/id/03E4DD6B7F3AFFE5B0D6F9EBFD91F957" lastPageId="7" lastPageNumber="158" pageId="6" pageNumber="157">
<subSubSection box="[227,681,1586,1613]" pageId="6" pageNumber="157" type="nomenclature">
<paragraph blockId="6.[227,681,1586,1613]" box="[227,681,1586,1613]" pageId="6" pageNumber="157">
<heading box="[227,681,1586,1613]" centered="true" fontSize="11" level="2" pageId="6" pageNumber="157" reason="4">
<taxonomicName authority="V.Pena" authorityName="V. Pena" authorityYear="2021" box="[227,587,1586,1613]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="6" pageNumber="157" phylum="Rhodophyta" rank="species" species="artabricum" status="sp. nov.">
<emphasis bold="true" box="[227,504,1586,1613]" italics="true" pageId="6" pageNumber="157">Lithophyllum artabricum</emphasis>
V.Peña
</taxonomicName>
,
<taxonomicNameLabel box="[598,681,1587,1613]" pageId="6" pageNumber="157" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection box="[385,523,1618,1645]" pageId="6" pageNumber="157" type="description">
<paragraph blockId="6.[385,523,1618,1645]" box="[385,523,1618,1645]" pageId="6" pageNumber="157">
<heading box="[385,523,1618,1645]" centered="true" fontSize="11" level="3" pageId="6" pageNumber="157" reason="3">
(
<figureCitation box="[394,457,1618,1644]" captionStart="FIG" captionStartId="6.[132,143,1278,1296]" captionTargetBox="[132,1455,215,1212]" captionTargetId="figure-333@6.[698,1267,213,759]" captionTargetPageId="6" captionText="FIG. 1. — Habitat and habit of Lithophyllum artabricum V.Peña, sp. nov.: A-D, characteristic habitat of this species growing in subtidal bedrock, sometimes sciophilous, in the type locality (A), and other Galician localities (B-D, Cedeira, Cambre and Sisargas, respectively); E, F,gross morphology consisted on foliose lamellae or fan-like thallus,single or superimposed (arrow) observed in the specimen SANT-Algae 15006 (E) and in the holotype (F, SANT-33667); G, lower surface of the specimen showing concentric lines, particularly visible at the margins as the remaining surface is covered by sessile invertebrates (SANT-Algae 11666). Scale bars: E, 2 cm; F, G, 1 cm." figureDoi="http://doi.org/10.5281/zenodo.7819229" httpUri="https://zenodo.org/record/7819229/files/figure.png" pageId="6" pageNumber="157">Figs 1</figureCitation>
,
<figureCitation box="[471,485,1618,1644]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="6" pageNumber="157">4</figureCitation>
,
<figureCitation box="[499,513,1618,1645]" captionStart="FIG" captionStartId="14.[132,143,1118,1136]" captionTargetBox="[132,1454,223,1057]" captionTargetId="figure-458@14.[698,1267,221,779]" captionTargetPageId="14" captionText="FIG. 5. — Tetra/bisporangial conceptacles of Lithophyllum artabricum V.Peña, sp. nov.: A, B, chambers dumbbell-shaped, empty; C, canal pore conical, tapering from the bottom to the roof surface; D, central calcified columella; E, buried conceptacles within the thallus; F, buried conceptacle with inorganic infilling. A, SANT-Algae 7046; B-D, E, holotype SANT-Algae 33667; F, SANT-Algae 15005. Scale bars: A, B, D, 100 µm; C, 50 µm; E, 500 µm; F, 200 µm." figureDoi="http://doi.org/10.5281/zenodo.7819237" httpUri="https://zenodo.org/record/7819237/files/figure.png" pageId="6" pageNumber="157">5</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="157" type="materials_examined">
<paragraph blockId="6.[131,775,1675,1752]" pageId="6" pageNumber="157">
<materialsCitation collectingDate="2012-05-19" collectionCode="V, J" country="Spain" county="Cabo Prior" elevation="10" latitude="43.55821" location="Covas" longLatPrecision="1" longitude="-8.281302" municipality="Praia das Fontes" pageId="6" pageNumber="157" specimenCount="1" stateProvince="Galicia" typeStatus="holotype">
<typeStatus box="[132,239,1676,1699]" pageId="6" pageNumber="157">HOLOTYPE</typeStatus>
. —
<emphasis bold="true" box="[279,335,1677,1701]" pageId="6" pageNumber="157">
<collectingCountry box="[279,335,1677,1701]" name="Spain" pageId="6" pageNumber="157">Spain</collectingCountry>
</emphasis>
.
<collectingRegion box="[348,419,1675,1699]" country="Spain" name="Galicia" pageId="6" pageNumber="157">Galicia</collectingRegion>
,
<collectingCounty box="[428,535,1675,1699]" pageId="6" pageNumber="157">Cabo Prior</collectingCounty>
,
<collectingMunicipality box="[544,701,1675,1699]" pageId="6" pageNumber="157">Praia das Fontes</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:03E4DD6B7F3AFFE5B0D6F9EBFD91F957:8E923AA67F3AFFE4B2F3F952FC06F979" box="[710,771,1675,1699]" country="Spain" county="Cabo Prior" latitude="43.55821" longLatPrecision="1" longitude="-8.281302" municipality="Praia das Fontes" name="Covas" pageId="6" pageNumber="157" stateProvince="Galicia">Covas</location>
;
<geoCoordinate box="[131,285,1702,1726]" degrees="43" direction="north" minutes="33" orientation="latitude" pageId="6" pageNumber="157" precision="1" seconds="29.56" value="43.55821">43°3329.56”N</geoCoordinate>
,
<geoCoordinate box="[294,438,1702,1726]" degrees="8" direction="west" minutes="16" orientation="longitude" pageId="6" pageNumber="157" precision="1" seconds="52.69" value="-8.281302">8°1652.69”W</geoCoordinate>
;
<elevation box="[450,566,1702,1726]" metricMagnitude="1" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="157" unit="m" value="10.0">
<quantity box="[450,501,1702,1726]" metricMagnitude="1" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="157" unit="m" value="10.0">10 m</quantity>
depth
</elevation>
; SANT-Algae 33667,
<date box="[132,237,1728,1752]" pageId="6" pageNumber="157" value="2012-05-19">
<collectingDate box="[132,237,1728,1752]" pageId="6" pageNumber="157" value="2012-05-19">19.V.2012</collectingDate>
</date>
, leg.
<collectionCode box="[287,305,1729,1752]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="6" pageNumber="157" type="Museum">V</collectionCode>
. Peña &amp;
<collectionCode box="[393,405,1729,1752]" country="South Africa" lsid="urn:lsid:biocol.org:col:14647" name="University of the Witwatersrand" pageId="6" pageNumber="157" type="Herbarium">J</collectionCode>
. Souto (
<figureCitation box="[487,586,1728,1752]" captionStart="FIG" captionStartId="6.[132,143,1278,1296]" captionTargetBox="[132,1455,215,1212]" captionTargetId="figure-333@6.[698,1267,213,759]" captionTargetPageId="6" captionText="FIG. 1. — Habitat and habit of Lithophyllum artabricum V.Peña, sp. nov.: A-D, characteristic habitat of this species growing in subtidal bedrock, sometimes sciophilous, in the type locality (A), and other Galician localities (B-D, Cedeira, Cambre and Sisargas, respectively); E, F,gross morphology consisted on foliose lamellae or fan-like thallus,single or superimposed (arrow) observed in the specimen SANT-Algae 15006 (E) and in the holotype (F, SANT-33667); G, lower surface of the specimen showing concentric lines, particularly visible at the margins as the remaining surface is covered by sessile invertebrates (SANT-Algae 11666). Scale bars: E, 2 cm; F, G, 1 cm." figureDoi="http://doi.org/10.5281/zenodo.7819229" httpUri="https://zenodo.org/record/7819229/files/figure.png" pageId="6" pageNumber="157">Fig. 1A, F</figureCitation>
)
</materialsCitation>
</paragraph>
<paragraph blockId="6.[132,774,1785,1835]" pageId="6" pageNumber="157">
<materialsCitation collectionCode="P, A" pageId="6" pageNumber="157" specimenCode="MZ129194, MZ129197" specimenCount="1" typeStatus="holotype">
<typeStatus box="[132,239,1785,1808]" pageId="6" pageNumber="157">HOLOTYPE</typeStatus>
DNA SEQUENCES. — COI-5
<collectionCode box="[526,541,1785,1809]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="6" pageNumber="157" type="Herbarium">P</collectionCode>
and
<emphasis box="[589,619,1785,1809]" italics="true" pageId="6" pageNumber="157">psb</emphasis>
<collectionCode box="[619,637,1785,1809]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="6" pageNumber="157" type="Herbarium">A</collectionCode>
, GenBank accession numbers
<specimenCode box="[299,414,1811,1835]" collectionCode="MZ" country="0" name="Museum of the Earth, Polish Academy of Sciences" pageId="6" pageNumber="157">MZ129194</specimenCode>
and
<specimenCode box="[464,579,1811,1835]" collectionCode="MZ" country="0" name="Museum of the Earth, Polish Academy of Sciences" pageId="6" pageNumber="157">MZ129197</specimenCode>
.
</materialsCitation>
</paragraph>
<paragraph blockId="6.[131,777,1868,2026]" lastBlockId="6.[813,1455,1488,1539]" pageId="6" pageNumber="157">
COMPLEMENTARY COLLECTIONS. —
<emphasis bold="true" box="[496,551,1870,1894]" pageId="6" pageNumber="157">
<collectingCountry box="[496,551,1870,1894]" name="Spain" pageId="6" pageNumber="157">Spain</collectingCountry>
</emphasis>
.
<collectingRegion box="[565,637,1868,1892]" country="Spain" name="Galicia" pageId="6" pageNumber="157">Galicia</collectingRegion>
, San Ciprián, Lugo, Punta Gallino;
<date box="[340,464,1894,1918]" pageId="6" pageNumber="157" value="2015-07-21">21.VII.2015</date>
;
<quantity box="[473,510,1894,1918]" metricMagnitude="0" metricUnit="m" metricValue="6.0" pageId="6" pageNumber="157" unit="m" value="6.0">6 m</quantity>
depth, collectors
<collectionCode box="[677,688,1895,1918]" country="Romania" lsid="urn:lsid:biocol.org:col:14415" name="&amp;quot;Alexandru Ioan Cuza&amp;quot; University" pageId="6" pageNumber="157" type="Herbarium">I</collectionCode>
. Bárbara,
<collectionCode box="[131,149,1921,1945]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="6" pageNumber="157" type="Herbarium">A</collectionCode>
. García-Fernández &amp;
<collectionCode box="[348,365,1921,1944]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="6" pageNumber="157" type="Museum">V</collectionCode>
.García-Redondo SANT-Algae 33616 (
<emphasis box="[725,753,1921,1945]" italics="true" pageId="6" pageNumber="157">psb</emphasis>
<collectionCode box="[753,772,1921,1945]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="6" pageNumber="157" type="Herbarium">A</collectionCode>
:
<collectionCode box="[132,171,1947,1971]" country="0" name="Museum of the Earth, Polish Academy of Sciences" pageId="6" pageNumber="157">MZ</collectionCode>
129195), SANT-Algae 33619 (
<emphasis box="[467,496,1947,1971]" italics="true" pageId="6" pageNumber="157">psb</emphasis>
<collectionCode box="[496,515,1948,1972]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="6" pageNumber="157" type="Herbarium">A</collectionCode>
:
<collectionCode box="[522,561,1947,1971]" country="0" name="Museum of the Earth, Polish Academy of Sciences" pageId="6" pageNumber="157">MZ</collectionCode>
129196). —
<emphasis bold="true" box="[683,767,1948,1972]" pageId="6" pageNumber="157">
<collectingCountry box="[683,767,1948,1972]" name="Portugal" pageId="6" pageNumber="157">Portugal</collectingCountry>
</emphasis>
. Douro Litoral, Apulia;
<date box="[356,471,1974,1998]" pageId="6" pageNumber="157" value="2018-09-26">26.IX.2018</date>
;
<quantity box="[481,519,1974,1998]" metricMagnitude="0" metricUnit="m" metricValue="9.0" pageId="6" pageNumber="157" unit="m" value="9.0">9 m</quantity>
depth, collector
<collectionCode box="[681,693,1974,1997]" country="South Africa" lsid="urn:lsid:biocol.org:col:14647" name="University of the Witwatersrand" pageId="6" pageNumber="157" type="Herbarium">J</collectionCode>
. Franco; SANT-Algae 26900 (COI-5
<collectionCode box="[408,423,2000,2024]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="6" pageNumber="157" type="Herbarium">P</collectionCode>
:
<collectionCode box="[435,474,2000,2024]" country="0" name="Museum of the Earth, Polish Academy of Sciences" pageId="6" pageNumber="157">MZ</collectionCode>
129193). —
<emphasis bold="true" box="[603,659,2002,2026]" pageId="6" pageNumber="157">
<collectingCountry box="[603,659,2002,2026]" name="Spain" pageId="6" pageNumber="157">Spain</collectingCountry>
</emphasis>
.
<collectingRegion box="[671,771,2000,2024]" country="Spain" name="Cantabria" pageId="6" pageNumber="157">Cantabria</collectingRegion>
, Bahía de Santander, Isla de Mouro;
<date box="[1151,1287,1488,1512]" pageId="6" pageNumber="157" value="2009-08-16">16.VIII.2009</date>
;
<quantity box="[1296,1346,1488,1512]" metricMagnitude="1" metricUnit="m" metricValue="1.5" pageId="6" pageNumber="157" unit="m" value="15.0">15 m</quantity>
depth; collectors
<collectionCode box="[882,902,1515,1539]" country="Denmark" name="University of Copenhagen" pageId="6" pageNumber="157" type="Herbarium">C</collectionCode>
. Peteiro &amp;
<collectionCode box="[1011,1034,1515,1538]" country="China" lsid="urn:lsid:biocol.org:col:13092" name="Nanjing University" pageId="6" pageNumber="157" type="Herbarium">N</collectionCode>
. Sánchez. Additional collections in
<tableCitation box="[1377,1455,1514,1539]" captionStart="TABLE" captionStartId="5.[392,403,219,237]" captionText="TABLE 1. — Collection details of the herbarium specimens examined and sequenced in the study." pageId="6" pageNumber="157">Table 1.</tableCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="6" pageNumber="157" type="etymology">
<paragraph blockId="6.[813,1455,1562,1639]" pageId="6" pageNumber="157">
ETYMOLOGY. — The specific epithet refers to the geographic location of the
<typeStatus box="[923,965,1589,1613]" pageId="6" pageNumber="157">type</typeStatus>
locality, the Artabrian Gulf (historically known as
<emphasis box="[813,1071,1615,1639]" italics="true" pageId="6" pageNumber="157">Portus Magnus Artabrorum</emphasis>
).
</paragraph>
</subSubSection>
<subSubSection lastPageId="7" lastPageNumber="158" pageId="6" pageNumber="157" type="description">
<paragraph blockId="6.[813,957,1683,1709]" box="[813,957,1683,1709]" pageId="6" pageNumber="157">
<heading box="[813,957,1683,1709]" fontSize="9" level="3" pageId="6" pageNumber="157" reason="5">DESCRIPTION</heading>
</paragraph>
<paragraph blockId="6.[810,1457,1714,2028]" pageId="6" pageNumber="157">
Non-geniculate, foliose lamellae or fan-like thallus, single or superimposed, up to
<quantity box="[1087,1158,1746,1772]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="157" unit="cm" value="10.0">10 cm</quantity>
diameter and
<quantity box="[1324,1392,1746,1772]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="6" pageNumber="157" unit="mm" value="2.0">2 mm</quantity>
thick (
<figureCitation box="[822,886,1778,1804]" captionStart="FIG" captionStartId="6.[132,143,1278,1296]" captionTargetBox="[132,1455,215,1212]" captionTargetId="figure-333@6.[698,1267,213,759]" captionTargetPageId="6" captionText="FIG. 1. — Habitat and habit of Lithophyllum artabricum V.Peña, sp. nov.: A-D, characteristic habitat of this species growing in subtidal bedrock, sometimes sciophilous, in the type locality (A), and other Galician localities (B-D, Cedeira, Cambre and Sisargas, respectively); E, F,gross morphology consisted on foliose lamellae or fan-like thallus,single or superimposed (arrow) observed in the specimen SANT-Algae 15006 (E) and in the holotype (F, SANT-33667); G, lower surface of the specimen showing concentric lines, particularly visible at the margins as the remaining surface is covered by sessile invertebrates (SANT-Algae 11666). Scale bars: E, 2 cm; F, G, 1 cm." figureDoi="http://doi.org/10.5281/zenodo.7819229" httpUri="https://zenodo.org/record/7819229/files/figure.png" pageId="6" pageNumber="157">Figs 1</figureCitation>
A-F, 4A). Colour pink to violet, texture smooth and matt when dried (
<figureCitation box="[999,1058,1810,1836]" captionStart="FIG" captionStartId="6.[132,143,1278,1296]" captionTargetBox="[132,1455,215,1212]" captionTargetId="figure-333@6.[698,1267,213,759]" captionTargetPageId="6" captionText="FIG. 1. — Habitat and habit of Lithophyllum artabricum V.Peña, sp. nov.: A-D, characteristic habitat of this species growing in subtidal bedrock, sometimes sciophilous, in the type locality (A), and other Galician localities (B-D, Cedeira, Cambre and Sisargas, respectively); E, F,gross morphology consisted on foliose lamellae or fan-like thallus,single or superimposed (arrow) observed in the specimen SANT-Algae 15006 (E) and in the holotype (F, SANT-33667); G, lower surface of the specimen showing concentric lines, particularly visible at the margins as the remaining surface is covered by sessile invertebrates (SANT-Algae 11666). Scale bars: E, 2 cm; F, G, 1 cm." figureDoi="http://doi.org/10.5281/zenodo.7819229" httpUri="https://zenodo.org/record/7819229/files/figure.png" pageId="6" pageNumber="157">Fig. 1</figureCitation>
E-F). Concentric lines along the lower surface, particularly visible at the margins as the remaining surface is covered by sessile invertebrates (
<figureCitation box="[1269,1356,1873,1900]" captionStart="FIG" captionStartId="6.[132,143,1278,1296]" captionTargetBox="[132,1455,215,1212]" captionTargetId="figure-333@6.[698,1267,213,759]" captionTargetPageId="6" captionText="FIG. 1. — Habitat and habit of Lithophyllum artabricum V.Peña, sp. nov.: A-D, characteristic habitat of this species growing in subtidal bedrock, sometimes sciophilous, in the type locality (A), and other Galician localities (B-D, Cedeira, Cambre and Sisargas, respectively); E, F,gross morphology consisted on foliose lamellae or fan-like thallus,single or superimposed (arrow) observed in the specimen SANT-Algae 15006 (E) and in the holotype (F, SANT-33667); G, lower surface of the specimen showing concentric lines, particularly visible at the margins as the remaining surface is covered by sessile invertebrates (SANT-Algae 11666). Scale bars: E, 2 cm; F, G, 1 cm." figureDoi="http://doi.org/10.5281/zenodo.7819229" httpUri="https://zenodo.org/record/7819229/files/figure.png" pageId="6" pageNumber="157">Fig. 1G</figureCitation>
). Thallus pseudoparenchymatous,monomerous with medulla non-coaxial to occasionally coaxial, composed of cells 6-47 µm long by 4-27 µm diameter (
<figureCitation box="[1015,1074,1969,1995]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="6" pageNumber="157">Fig. 4</figureCitation>
A-B, D). Cortical cells (3) 4-19 µm × 3-21 µm, arranged in filaments laterally aligned (
<figureCitation box="[1323,1402,2001,2027]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="6" pageNumber="157">Fig. 4C</figureCitation>
) and
</paragraph>
<paragraph blockId="7.[130,776,215,688]" pageId="7" pageNumber="158">
subepithallial cells 7-15 µm × 5-12 µm (
<figureCitation box="[565,646,215,242]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="7" pageNumber="158">Fig. 4E</figureCitation>
). Epithallial cells arranged in 1 (2) layers, flattened in transverse section, 1-3 µm long and 6-13 µm wide (
<figureCitation box="[487,548,279,305]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="7" pageNumber="158">Fig. 4</figureCitation>
E-F); in surface view, epithallial cells were polygonal (
<figureCitation box="[469,553,311,337]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="7" pageNumber="158">Fig. 4G</figureCitation>
). Secondary pit-connections present between cells of contiguous filaments (
<figureCitation captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="7" pageNumber="158">Fig. 4C, E</figureCitation>
). Trichocytes not observed. Gametangial plants were not observed. Tetra/bisporangial conceptacles were uniporate, flush with surface (
<figureCitation box="[343,407,438,465]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="7" pageNumber="158">Fig. 4</figureCitation>
H-I). Conceptacle chambers were dumbbell-shaped, 70-133 µm high and 236-448 µm wide, with canal pore conical tapering from bottom to top of the thallus surface (
<figureCitation box="[297,357,534,561]" captionStart="FIG" captionStartId="14.[132,143,1118,1136]" captionTargetBox="[132,1454,223,1057]" captionTargetId="figure-458@14.[698,1267,221,779]" captionTargetPageId="14" captionText="FIG. 5. — Tetra/bisporangial conceptacles of Lithophyllum artabricum V.Peña, sp. nov.: A, B, chambers dumbbell-shaped, empty; C, canal pore conical, tapering from the bottom to the roof surface; D, central calcified columella; E, buried conceptacles within the thallus; F, buried conceptacle with inorganic infilling. A, SANT-Algae 7046; B-D, E, holotype SANT-Algae 33667; F, SANT-Algae 15005. Scale bars: A, B, D, 100 µm; C, 50 µm; E, 500 µm; F, 200 µm." figureDoi="http://doi.org/10.5281/zenodo.7819237" httpUri="https://zenodo.org/record/7819237/files/figure.png" pageId="7" pageNumber="158">Fig. 5</figureCitation>
A-C). Conceptacle roofs were 8-14 cells thick, the depth of the floor between 14-25 cells. Central columella present (
<figureCitation box="[334,418,598,625]" captionStart="FIG" captionStartId="14.[132,143,1118,1136]" captionTargetBox="[132,1454,223,1057]" captionTargetId="figure-458@14.[698,1267,221,779]" captionTargetPageId="14" captionText="FIG. 5. — Tetra/bisporangial conceptacles of Lithophyllum artabricum V.Peña, sp. nov.: A, B, chambers dumbbell-shaped, empty; C, canal pore conical, tapering from the bottom to the roof surface; D, central calcified columella; E, buried conceptacles within the thallus; F, buried conceptacle with inorganic infilling. A, SANT-Algae 7046; B-D, E, holotype SANT-Algae 33667; F, SANT-Algae 15005. Scale bars: A, B, D, 100 µm; C, 50 µm; E, 500 µm; F, 200 µm." figureDoi="http://doi.org/10.5281/zenodo.7819237" httpUri="https://zenodo.org/record/7819237/files/figure.png" pageId="7" pageNumber="158">Fig. 5D</figureCitation>
). Tetra/bisporangia not observed. Buried conceptacles present, occasionally with inorganic infillings (
<figureCitation box="[242,330,662,688]" captionStart="FIG" captionStartId="13.[132,143,1566,1584]" captionTargetBox="[132,1455,215,1512]" captionTargetId="figure-177@13.[698,1267,770,1328]" captionTargetPageId="13" captionText="FIG. 4. — Morpho-anatomy of Lithophyllum artabricum V.Peña, sp. nov.: A, B, vertical section of the thallus showing a monomerous thallus construction with non-coaxial medulla; C, vertical section of the thallus showing cortical cells disposed in filaments laterally aligned; D, vertical section of the thallus showing a monomerous thallus construction with coaxial medulla, and a tetra/bisporangial uniporate conceptacle empty and buried; E, F, Vertical section of the thallus showing secondary pit-connections between contiguous filaments of cortical cells (arrows) and epithallial cells flattened disposed in 1-2 layers (arrowheads), G, surface view of the thallus showing polygonal epithallial cells; H, I, surface view of two different development stages of tetra/bisporangial uniporate conceptacles showing the pore flush with thallus surface (arrows). A, H, SANT-Algae 11671; B, C, holotype SANT-Algae 33667; D, E, SANT-Algae 26900; F, SANT-Algae 7046; G, SANT-Algae 11683; I, SANT-Algae 15006. Scale bars: A, B, D, 200 µm; C, G-I, 50 µm; E, F, 20 µm." figureDoi="http://doi.org/10.5281/zenodo.7819235" httpUri="https://zenodo.org/record/7819235/files/figure.png" pageId="7" pageNumber="158">Figs 4D</figureCitation>
,
<figureCitation box="[342,404,661,688]" captionStart="FIG" captionStartId="14.[132,143,1118,1136]" captionTargetBox="[132,1454,223,1057]" captionTargetId="figure-458@14.[698,1267,221,779]" captionTargetPageId="14" captionText="FIG. 5. — Tetra/bisporangial conceptacles of Lithophyllum artabricum V.Peña, sp. nov.: A, B, chambers dumbbell-shaped, empty; C, canal pore conical, tapering from the bottom to the roof surface; D, central calcified columella; E, buried conceptacles within the thallus; F, buried conceptacle with inorganic infilling. A, SANT-Algae 7046; B-D, E, holotype SANT-Algae 33667; F, SANT-Algae 15005. Scale bars: A, B, D, 100 µm; C, 50 µm; E, 500 µm; F, 200 µm." figureDoi="http://doi.org/10.5281/zenodo.7819237" httpUri="https://zenodo.org/record/7819237/files/figure.png" pageId="7" pageNumber="158">5E, F</figureCitation>
).
</paragraph>
<paragraph blockId="7.[131,775,711,761]" pageId="7" pageNumber="158">
HABITAT. —
<taxonomicName authority="V.Pena" authorityName="V. Pena" authorityYear="2021" box="[257,563,711,735]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="artabricum" status="sp. nov.">
<emphasis box="[257,490,711,735]" italics="true" pageId="7" pageNumber="158">Lithophyllum artabricum</emphasis>
V.Peña
</taxonomicName>
,
<taxonomicNameLabel box="[572,644,712,735]" pageId="7" pageNumber="158" rank="species">sp. nov.</taxonomicNameLabel>
is at presently known only from subtidal bedrock, sometimes in sciophilous habitats.
</paragraph>
<paragraph blockId="7.[132,775,785,836]" pageId="7" pageNumber="158">
DISTRIBUTION. — Atlantic Iberian Peninsula, recorded from Cantabria to North
<collectingCountry box="[288,370,812,836]" name="Portugal" pageId="7" pageNumber="158">Portugal</collectingCountry>
(Douro Litoral province).
</paragraph>
</subSubSection>
<subSubSection pageId="7" pageNumber="158" type="discussion">
<paragraph blockId="7.[132,260,885,911]" box="[132,260,885,911]" pageId="7" pageNumber="158">
<heading box="[132,260,885,911]" fontSize="9" level="3" pageId="7" pageNumber="158" reason="5">COMMENTS</heading>
</paragraph>
<paragraph blockId="7.[130,777,917,1677]" pageId="7" pageNumber="158">
The morpho-anatomical characters of
<taxonomicName authority="V.Pena" authorityName="V. Pena" authorityYear="2021" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="artabricum" status="sp. nov.">
<emphasis italics="true" pageId="7" pageNumber="158">Lithophyllum artabricum</emphasis>
V.Peña
</taxonomicName>
,
<taxonomicNameLabel box="[271,354,949,975]" pageId="7" pageNumber="158" rank="species">sp. nov.</taxonomicNameLabel>
showed an overlap with vegetative and reproductive characters provided for many of the 13 clades recovered in the
<taxonomicName box="[314,451,1013,1039]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="stictiforme">
<emphasis box="[314,451,1013,1039]" italics="true" pageId="7" pageNumber="158">L. stictiforme</emphasis>
</taxonomicName>
complex, which also includes the Macaronesian
<taxonomicName authorityName="Me. Lemoine" authorityYear="1929" box="[323,435,1044,1070]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="lobatum">
<emphasis box="[323,435,1044,1070]" italics="true" pageId="7" pageNumber="158">L. lobatum</emphasis>
</taxonomicName>
and the NW Atlantic
<taxonomicName authority="(Pezzolesi et al. 2019)" baseAuthorityName="Pezzolesi" baseAuthorityYear="2019" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="searlesii">
<emphasis box="[668,773,1044,1070]" italics="true" pageId="7" pageNumber="158">L. searlesii</emphasis>
(
<bibRefCitation author="PEZZOLESI L. &amp; PENA V. &amp; LE GALL L. &amp; GABRIELSON P. W. &amp; KALEB S. &amp; HUGHEY J. R. &amp; RODONDI G. &amp; KANTUN J. J. &amp; ACE A. &amp; BASSO D. &amp; CERRANO C. &amp; RINDI F." box="[141,352,1076,1102]" pageId="7" pageNumber="158" pagination="473 - 492" refId="ref12598" refString="PEZZOLESI L., PENA V., LE GALL L., GABRIELSON P. W., KALEB S., HUGHEY J. R., RODONDI G., HERNANDEZ- KANTUN J. J., FAL- ACE A., BASSO D., CERRANO C. &amp; RINDI F. 2019. - Mediterranean Lithophyllum stictiforme (Corallinales, Rhodophyta) is a genetically diverse species complex: implications for species circumscription, biogeography and conservation of coralligenous habitats. Journal of Phycology 55: 473 - 492. https: // doi. org / 10.1111 / jpy. 12837" type="journal article" year="2019">
Pezzolesi
<emphasis box="[241,291,1076,1102]" italics="true" pageId="7" pageNumber="158">et al.</emphasis>
2019
</bibRefCitation>
)
</taxonomicName>
. However, the specimens of
<taxonomicName authority="V.Pena" authorityName="V. Pena" authorityYear="2021" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="artabricum" status="sp. nov.">
<emphasis italics="true" pageId="7" pageNumber="158">L. artabricum</emphasis>
V.Peña
</taxonomicName>
,
<taxonomicNameLabel box="[266,346,1109,1135]" pageId="7" pageNumber="158" rank="species">sp. nov.</taxonomicNameLabel>
have a conspicuous monomerous thallus construction composed of a non-coaxial medulla to occasionally coaxial, whereas the clades comprising the
<taxonomicName box="[639,775,1172,1198]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="stictiforme">
<emphasis box="[639,775,1172,1198]" italics="true" pageId="7" pageNumber="158">L. stictiforme</emphasis>
</taxonomicName>
complex are described with mainly dimerous construction (
<tableCitation box="[142,226,1236,1262]" captionStart="TABLE" captionStartId="8.[132,143,219,237]" captionText="TABLE 2. — Comparative table of Lithophyllum artabricum V.Peña,sp. nov., the Mediterranean L. stictiforme and cryptic clades (2 to 10) uncovered under this species complex, and L. lobatum. Data from: 1, Lemoine (1929); 2, Hamel &amp; Lemoine (1953); 3, Bressan &amp; Babbini (2003); 4, Pezzolesi et al. (2019); 5, present study." pageId="7" pageNumber="158">Table 2</tableCitation>
). Moreover, the combination of characters such as concentric lines in the margins of the lower surface, the absence of trichocytes, the conical shape of the canal pore and the presence of buried conceptacles are considered useful to differentiate
<taxonomicName authority="V.Pena" authorityName="V. Pena" authorityYear="2021" box="[268,495,1363,1390]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="artabricum" status="sp. nov.">
<emphasis box="[268,413,1363,1389]" italics="true" pageId="7" pageNumber="158">L. artabricum</emphasis>
V.Peña
</taxonomicName>
,
<taxonomicNameLabel box="[505,587,1364,1390]" pageId="7" pageNumber="158" rank="species">sp. nov.</taxonomicNameLabel>
from some of the Mediterranean clades reported as well as
<taxonomicName authorityName="Me. Lemoine" authorityYear="1929" box="[554,666,1395,1421]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="lobatum">
<emphasis box="[554,666,1395,1421]" italics="true" pageId="7" pageNumber="158">L. lobatum</emphasis>
</taxonomicName>
(
<tableCitation box="[682,759,1395,1421]" captionStart="TABLE" captionStartId="8.[132,143,219,237]" captionText="TABLE 2. — Comparative table of Lithophyllum artabricum V.Peña,sp. nov., the Mediterranean L. stictiforme and cryptic clades (2 to 10) uncovered under this species complex, and L. lobatum. Data from: 1, Lemoine (1929); 2, Hamel &amp; Lemoine (1953); 3, Bressan &amp; Babbini (2003); 4, Pezzolesi et al. (2019); 5, present study." pageId="7" pageNumber="158">Table 2</tableCitation>
). In addition,
<taxonomicName authority="V.Pena" authorityName="V. Pena" authorityYear="2021" box="[264,492,1427,1454]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="species" species="artabricum" status="sp. nov.">
<emphasis box="[264,409,1427,1453]" italics="true" pageId="7" pageNumber="158">L. artabricum</emphasis>
V.Peña
</taxonomicName>
,
<taxonomicNameLabel box="[501,582,1428,1454]" pageId="7" pageNumber="158" rank="species">sp. nov.</taxonomicNameLabel>
differs from other species of
<taxonomicName authorityName="Philippi" authorityYear="1837" box="[237,377,1459,1485]" family="Corallinaceae" genus="Lithophyllum" kingdom="Plantae" order="Cryptonemiales" pageId="7" pageNumber="158" phylum="Rhodophyta" rank="genus">
<emphasis box="[237,377,1459,1485]" italics="true" pageId="7" pageNumber="158">Lithophyllum</emphasis>
</taxonomicName>
reported from the Atlantic European coasts by a combination of characters related to the external morphology consisting of single or superimposed lamellae or fan-like, the monomerous thallus construction with medulla non-coaxial to occasionally coaxial, the conical shape of the canal pore of sporangial conceptacles, and its occurrence seemingly limited to subtidal bedrocks (
<tableCitation box="[564,644,1650,1676]" captionStart="TABLE" captionStartId="9.[59,70,475,497]" captionText="TABLE 3. — Comparative table between Lithophyllum artabricum V.Peña,sp.nov.and the Lithophyllum species reported for the Atlantic European coast.Data from:1, Crouan &amp; Crouan (1867); 2, Foslie (1899); 3, Lemoine (1929); 4, Hamel &amp; Lemoine (1953); 5, Cabioch (1968); 6, Ardré (1970); 7, Adey &amp; Adey (1973); 8, Woelkerling (1983); 9, Afonso-Carrillo (1983); 10, Chamberlain &amp; Irvine (1994); 11, Chamberlain (1997); 12, Bressan &amp; Babbini (2003); 13, Peña et al. (2013); 14, Hernández-Kantun et al. (2015a);15, Cormaci et al. (2017); 16, Pezzolesi et al. (2017); 17, Peña et al. (2018); 18, Richards et al. (2018); 19, present study." pageId="7" pageNumber="158">Table 3</tableCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>