185 lines
29 KiB
XML
185 lines
29 KiB
XML
<document ID-DOI="10.11646/phytotaxa.567.3.6" ID-ISSN="1179-3163" ID-Zenodo-Dep="7156708" checkinTime="1665138440604" checkinUser="plazi" docAuthor="Casanova, Michelle T. & Becker, Ralf" docDate="2022" docId="03E187F50157FFC4FF4FBFC6C9F3FD94" docLanguage="en" docName="phytotaxa.567.3.6.pdf" docOrigin="Phytotaxa 567 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.567.3.6" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.5:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="5" docTitle="Lamprothamnium sardoum R. Becker. A 2022, sp. nov." docType="treatment" docVersion="1" lastPageNumber="272" masterDocId="FFD8FF8D0155FFC7FFC7BF30CD00FFB4" masterDocTitle="Lamprothamnium sardoum sp. nov. (Characeae, Streptophyta): A new species of Lamprothamnium for Europe" masterLastPageNumber="277" masterPageNumber="269" pageNumber="271" updateTime="1665426954237" updateUser="jonas" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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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>Lamprothamnium sardoum sp. nov. (Characeae, Streptophyta): A new species of Lamprothamnium for Europe</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>Casanova, Michelle T.</mods:namePart>
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<mods:affiliation>Natural History Museum, Cromwell Rd, London, UK; Royal Botanic Gardens, South Yarra, Melbourne, Australia; The New York Botanic Garden, The Bronx, USA; current address: 273 Casanova Rd, Westmere, Vic. 3351 Australia.</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>Becker, Ralf</mods:namePart>
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<mods:affiliation>Am Schützenplatz 58, 26121 Oldenburg, Germany.</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>Phytotaxa</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2022</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2022-10-07</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>567</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>3</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>269</mods:start>
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<mods:end>277</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/10.11646/phytotaxa.567.3.6</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">10.11646/phytotaxa.567.3.6</mods:identifier>
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<mods:identifier type="ISSN">1179-3163</mods:identifier>
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<mods:identifier type="Zenodo-Dep">7156708</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:plazi:treatment:03E187F50157FFC4FF4FBFC6C9F3FD94" httpUri="http://treatment.plazi.org/id/03E187F50157FFC4FF4FBFC6C9F3FD94" lastPageId="3" lastPageNumber="272" pageId="2" pageNumber="271">
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<subSubSection box="[136,695,246,268]" pageId="2" pageNumber="271" type="nomenclature">
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<paragraph blockId="2.[136,1452,246,338]" box="[136,695,246,268]" pageId="2" pageNumber="271">
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<taxonomicName authority="R.Becker" authorityName="R. Becker. A" authorityYear="2022" box="[136,507,246,268]" class="Charophyceae" family="Characeae" genus="Lamprothamnium" kingdom="Plantae" order="Charales" pageId="2" pageNumber="271" phylum="Charophyta" rank="species" species="sardoum" status="sp. nov.">
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<emphasis bold="true" box="[136,410,246,268]" italics="true" pageId="2" pageNumber="271">Lamprothamnium sardoum</emphasis>
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R.Becker
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||
</taxonomicName>
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||
,
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||
<emphasis box="[517,591,247,268]" italics="true" pageId="2" pageNumber="271">
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<taxonomicNameLabel box="[517,591,247,268]" pageId="2" pageNumber="271" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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||
(
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||
<figureCitation box="[602,687,246,268]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStartId-0="2.[136,229,1553,1575]" captionStartId-1="3.[136,229,1989,2011]" captionStartId-2="4.[136,229,690,712]" captionTargetBox-0="[252,1421,380,1497]" captionTargetBox-1="[222,1366,569,1964]" captionTargetBox-2="[152,1436,190,666]" captionTargetId-0="figure-55@2.[151,1435,361,1526]" captionTargetId-1="figure-213@3.[222,1366,569,1964]" captionTargetId-2="figure-25@4.[151,1436,190,666]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="4" captionText-0="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." captionText-1="FIGURE 2. Lamprothamnium sardoum in life. A) Sparse stands in shallow, brackish water in its habitat (Sardinia, 2018–04–05). Scale = 10 cm. B) Detail of the base of a whorl with abundant gametangia. Scale = 2 cm. C) Branchlet tips. Scale = 1 mm. D) Detail of single branchlet end cell. Scale = 0.5 mm. E) Oospore attached to the base of the plant. Scale = 200 µm (Photos R. Becker)." captionText-2="FIGURE 3. Oospore removed from the base of plant (the only mature oospore available on the type material). A) side view of oospore, damaged via germination. Scale = 200 µm. B) Detail of oospore wall. Scale = 10 µm." figureDoi-0="http://doi.org/10.5281/zenodo.7156712" figureDoi-1="http://doi.org/10.5281/zenodo.7156714" figureDoi-2="http://doi.org/10.5281/zenodo.7156716" httpUri-0="https://zenodo.org/record/7156712/files/figure.png" httpUri-1="https://zenodo.org/record/7156714/files/figure.png" httpUri-2="https://zenodo.org/record/7156716/files/figure.png" pageId="2" pageNumber="271">Figs 1–3</figureCitation>
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)
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</paragraph>
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||
</subSubSection>
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<subSubSection pageId="2" pageNumber="271" type="materials_examined">
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<paragraph blockId="2.[136,1452,246,338]" pageId="2" pageNumber="271">
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<materialsCitation country="Italy" latitude="39.886948" location="Sardini" longLatPrecision="19" longitude="8.439445" municipality="San Giovanni Sinis" pageId="2" pageNumber="271" specimenCount="1" typeStatus="holotype">
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<typeStatus box="[136,184,281,302]" pageId="2" pageNumber="271">Type</typeStatus>
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:—
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<collectingCountry box="[211,282,281,302]" name="Italy" pageId="2" pageNumber="271">ITALY</collectingCountry>
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.
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||
<location LSID="urn:lsid:plazi:treatment:03E187F50157FFC4FF4FBFC6C9F3FD94:8E9760380157FFC5FEE3BE29CC6CFE9B" box="[292,364,281,303]" country="Italy" latitude="39.886948" longLatPrecision="19" longitude="8.439445" municipality="San Giovanni Sinis" name="Sardini" pageId="2" pageNumber="271">Sardini</location>
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, circa
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<collectingMunicipality box="[429,619,281,303]" pageId="2" pageNumber="271">San Giovanni Sinis</collectingMunicipality>
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, in aquis stag.,
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<geoCoordinate box="[772,888,281,303]" degrees="39" direction="north" minutes="53" orientation="latitude" pageId="2" pageNumber="271" precision="15" seconds="13" value="39.886948">39°53’13 N</geoCoordinate>
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,
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<geoCoordinate box="[900,1002,281,303]" degrees="8" direction="east" minutes="26" orientation="longitude" pageId="2" pageNumber="271" precision="15" seconds="22" value="8.439445">8°26’22 E</geoCoordinate>
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, WGS 84, 05 April 2018,
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<emphasis box="[1260,1382,281,302]" italics="true" pageId="2" pageNumber="271">Becker 2018</emphasis>
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||
(Herb. ROST)
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||
</materialsCitation>
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||
.
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</paragraph>
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</subSubSection>
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<caption ID-DOI="http://doi.org/10.5281/zenodo.7156712" ID-Zenodo-Dep="7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="2" pageNumber="271" startId="2.[136,229,1553,1575]" targetBox="[252,1421,380,1497]" targetPageId="2">
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<paragraph blockId="2.[136,1452,1553,1755]" pageId="2" pageNumber="271">
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<emphasis bold="true" box="[136,254,1553,1575]" pageId="2" pageNumber="271">FIGURE 1.</emphasis>
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Morphology of
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<taxonomicName authority="R. Becker. A" authorityName="R. Becker. A" authorityYear="2022" box="[412,797,1553,1575]" class="Charophyceae" family="Characeae" genus="Lamprothamnium" kingdom="Plantae" order="Charales" pageId="2" pageNumber="271" phylum="Charophyta" rank="species" species="sardoum">
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<emphasis box="[412,673,1553,1574]" italics="true" pageId="2" pageNumber="271">Lamprothamnium sardoum</emphasis>
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R.Becker. A
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</taxonomicName>
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) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of
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<taxonomicName authorityName="J. Groves" authorityYear="1916" box="[162,333,1733,1754]" class="Charophyceae" family="Characeae" genus="Lamprothamnium" kingdom="Plantae" order="Charales" pageId="2" pageNumber="271" phylum="Charophyta" rank="genus">
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<emphasis box="[162,333,1733,1754]" italics="true" pageId="2" pageNumber="271">Lamprothamnium</emphasis>
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</taxonomicName>
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. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet.
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</paragraph>
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</caption>
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<subSubSection lastPageId="3" lastPageNumber="272" pageId="2" pageNumber="271" type="description">
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<paragraph blockId="2.[136,1452,1802,2080]" lastBlockId="3.[136,1452,158,545]" lastPageId="3" lastPageNumber="272" pageId="2" pageNumber="271">
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The monoecious plants are small to medium–sized (
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||
<quantity box="[730,829,1802,1828]" metricMagnitude="-1" metricUnit="m" metricValue="1.3" metricValueMax="1.7" metricValueMin="0.9" pageId="2" pageNumber="271" unit="cm" value="13.0" valueMax="17.0" valueMin="9.0">9–17 cm</quantity>
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including the protonema), light green, opaque and not incrusted, with well developed, long stipulodes and bract-cells (
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||
<figureCitation box="[835,957,1838,1864]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="2" pageNumber="271">Fig. 1 B, C</figureCitation>
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). The bright orange gametangia are clustered inside and outside the base of the whorl and on the lowest branchlets (
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<figureCitation box="[916,1004,1874,1900]" captionStart="FIGURE 2" captionStartId="3.[136,229,1989,2011]" captionTargetBox="[222,1366,569,1964]" captionTargetId="figure-213@3.[222,1366,569,1964]" captionTargetPageId="3" captionText="FIGURE 2. Lamprothamnium sardoum in life. A) Sparse stands in shallow, brackish water in its habitat (Sardinia, 2018–04–05). Scale = 10 cm. B) Detail of the base of a whorl with abundant gametangia. Scale = 2 cm. C) Branchlet tips. Scale = 1 mm. D) Detail of single branchlet end cell. Scale = 0.5 mm. E) Oospore attached to the base of the plant. Scale = 200 µm (Photos R. Becker)." figureDoi="http://doi.org/10.5281/zenodo.7156714" httpUri="https://zenodo.org/record/7156714/files/figure.png" pageId="2" pageNumber="271">Fig. 2B</figureCitation>
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), and are abundant and obvious, even
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<emphasis italics="true" pageId="2" pageNumber="271">in situ</emphasis>
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in the habitat (
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<figureCitation box="[345,429,1910,1936]" captionStart="FIGURE 2" captionStartId="3.[136,229,1989,2011]" captionTargetBox="[222,1366,569,1964]" captionTargetId="figure-213@3.[222,1366,569,1964]" captionTargetPageId="3" captionText="FIGURE 2. Lamprothamnium sardoum in life. A) Sparse stands in shallow, brackish water in its habitat (Sardinia, 2018–04–05). Scale = 10 cm. B) Detail of the base of a whorl with abundant gametangia. Scale = 2 cm. C) Branchlet tips. Scale = 1 mm. D) Detail of single branchlet end cell. Scale = 0.5 mm. E) Oospore attached to the base of the plant. Scale = 200 µm (Photos R. Becker)." figureDoi="http://doi.org/10.5281/zenodo.7156714" httpUri="https://zenodo.org/record/7156714/files/figure.png" pageId="2" pageNumber="271">Fig 2A</figureCitation>
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).
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<emphasis box="[449,521,1910,1936]" italics="true" pageId="2" pageNumber="271">Plants</emphasis>
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grow as individual shoots, fertile at nearly all nodes, with long whispy protonemal axes longer than the height of the plants (
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<figureCitation box="[622,712,1946,1972]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="2" pageNumber="271">Fig. 1B</figureCitation>
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).
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<emphasis box="[736,789,1946,1972]" italics="true" pageId="2" pageNumber="271">Axes</emphasis>
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narrow, 350–600 µm in diameter (usually 375–550 µm), ecorticate, internodes
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||
<quantity box="[382,485,1982,2008]" metricMagnitude="-2" metricUnit="m" metricValue="2.1" metricValueMax="3.2" metricValueMin="1.0" pageId="2" pageNumber="271" unit="cm" value="2.1" valueMax="3.2" valueMin="1.0">1–3.2 cm</quantity>
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long except in the apicies.
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<emphasis box="[789,906,1982,2008]" italics="true" pageId="2" pageNumber="271">Stipulodes</emphasis>
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, up to one per branchlet (but frequently replaced by gametangia;
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<figureCitation box="[316,404,2018,2044]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="2" pageNumber="271">Fig. 1A</figureCitation>
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||
), up to
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||
<quantity box="[491,591,2017,2044]" metricMagnitude="-3" metricUnit="m" metricValue="1.75" pageId="2" pageNumber="271" unit="mm" value="1.75">1.75 mm</quantity>
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||
long, downward and outward pointing where present.
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||
<emphasis box="[1208,1329,2018,2044]" italics="true" pageId="2" pageNumber="271">Branchlets</emphasis>
|
||
<quantity box="[1337,1432,2017,2044]" metricMagnitude="-1" metricUnit="m" metricValue="1.651" metricValueMax="2.032" metricValueMin="1.27" pageId="2" pageNumber="271" unit="in" value="6.5" valueMax="8.0" valueMin="5.0">5 to 8 in</quantity>
|
||
a whorl, up to
|
||
<quantity box="[279,356,2054,2080]" metricMagnitude="-2" metricUnit="m" metricValue="1.8" pageId="2" pageNumber="271" unit="cm" value="1.8">1.8 cm</quantity>
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||
long, basal branchlet cell short on fertile branchlets, up to
|
||
<quantity box="[1015,1080,2054,2080]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="2" pageNumber="271" unit="mm" value="2.0">2 mm</quantity>
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||
long (
|
||
<figureCitation box="[1152,1238,2054,2080]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="2" pageNumber="271">Fig. 1C</figureCitation>
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), sterile branchlets not seen.
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||
<emphasis box="[246,516,158,184]" italics="true" pageId="3" pageNumber="272">Branchlet end segments</emphasis>
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usually 1 cell, up to 750 µm long, mucronate (
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<figureCitation box="[1056,1148,158,184]" captionStart="FIGURE 2" captionStartId="3.[136,229,1989,2011]" captionTargetBox="[222,1366,569,1964]" captionTargetId="figure-213@3.[222,1366,569,1964]" captionTargetPageId="3" captionText="FIGURE 2. Lamprothamnium sardoum in life. A) Sparse stands in shallow, brackish water in its habitat (Sardinia, 2018–04–05). Scale = 10 cm. B) Detail of the base of a whorl with abundant gametangia. Scale = 2 cm. C) Branchlet tips. Scale = 1 mm. D) Detail of single branchlet end cell. Scale = 0.5 mm. E) Oospore attached to the base of the plant. Scale = 200 µm (Photos R. Becker)." figureDoi="http://doi.org/10.5281/zenodo.7156714" httpUri="https://zenodo.org/record/7156714/files/figure.png" pageId="3" pageNumber="272">Fig. 2D</figureCitation>
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).
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<emphasis box="[1169,1291,158,184]" italics="true" pageId="3" pageNumber="272">Bract cells</emphasis>
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verticillate (4 or 5 around) on the lowest two or three branchlet nodes in fertile whorls, up to
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<quantity box="[1040,1128,194,221]" metricMagnitude="-3" metricUnit="m" metricValue="1.7" pageId="3" pageNumber="272" unit="mm" value="1.7">1.7 mm</quantity>
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long (
|
||
<figureCitation box="[1202,1292,194,220]" captionStart="FIGURE 2" captionStartId="3.[136,229,1989,2011]" captionTargetBox="[222,1366,569,1964]" captionTargetId="figure-213@3.[222,1366,569,1964]" captionTargetPageId="3" captionText="FIGURE 2. Lamprothamnium sardoum in life. A) Sparse stands in shallow, brackish water in its habitat (Sardinia, 2018–04–05). Scale = 10 cm. B) Detail of the base of a whorl with abundant gametangia. Scale = 2 cm. C) Branchlet tips. Scale = 1 mm. D) Detail of single branchlet end cell. Scale = 0.5 mm. E) Oospore attached to the base of the plant. Scale = 200 µm (Photos R. Becker)." figureDoi="http://doi.org/10.5281/zenodo.7156714" httpUri="https://zenodo.org/record/7156714/files/figure.png" pageId="3" pageNumber="272">Fig. 2C</figureCitation>
|
||
).
|
||
<emphasis box="[1313,1451,195,221]" italics="true" pageId="3" pageNumber="272">Gametangia</emphasis>
|
||
clustered inside and outside the base of the whorl and conjoined, geminate or geminate-conjoined on the lowest 2–3 branchlet nodes (
|
||
<figureCitation box="[326,414,266,292]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="3" pageNumber="272">Fig. 1A</figureCitation>
|
||
).
|
||
<emphasis box="[434,532,267,293]" italics="true" pageId="3" pageNumber="272">Oogonia</emphasis>
|
||
bright orange (
|
||
<figureCitation box="[702,788,266,292]" captionStart="FIGURE 2" captionStartId="3.[136,229,1989,2011]" captionTargetBox="[222,1366,569,1964]" captionTargetId="figure-213@3.[222,1366,569,1964]" captionTargetPageId="3" captionText="FIGURE 2. Lamprothamnium sardoum in life. A) Sparse stands in shallow, brackish water in its habitat (Sardinia, 2018–04–05). Scale = 10 cm. B) Detail of the base of a whorl with abundant gametangia. Scale = 2 cm. C) Branchlet tips. Scale = 1 mm. D) Detail of single branchlet end cell. Scale = 0.5 mm. E) Oospore attached to the base of the plant. Scale = 200 µm (Photos R. Becker)." figureDoi="http://doi.org/10.5281/zenodo.7156714" httpUri="https://zenodo.org/record/7156714/files/figure.png" pageId="3" pageNumber="272">Fig. 2B</figureCitation>
|
||
), apparently sessile, clustered inside and outside the base of the whorl, and when occurring on the branchlets, usually conjoined with antheridia, below or beside the antheridium, 500–750 µm long, 400–600 µm wide (only dry material was measured), with 10–14 convolutions (
|
||
<figureCitation box="[1238,1327,338,364]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="3" pageNumber="272">Fig. 1D</figureCitation>
|
||
). Coronula 75–110 µm long, 130–150 µm wide, coronula cells oval-shaped (
|
||
<figureCitation box="[878,965,374,400]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="3" pageNumber="272">Fig. 1E</figureCitation>
|
||
).
|
||
<emphasis box="[987,1093,375,401]" italics="true" pageId="3" pageNumber="272">Oospores</emphasis>
|
||
black, 510–650 µm long, 250– 475 µm wide at the widest point, with 9–11 striae of low ridges, ornamentation smooth (
|
||
<figureCitation box="[1148,1217,410,436]" captionStart="FIGURE 3" captionStartId="4.[136,229,690,712]" captionTargetBox="[152,1436,190,666]" captionTargetId="figure-25@4.[151,1436,190,666]" captionTargetPageId="4" captionText="FIGURE 3. Oospore removed from the base of plant (the only mature oospore available on the type material). A) side view of oospore, damaged via germination. Scale = 200 µm. B) Detail of oospore wall. Scale = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.7156716" httpUri="https://zenodo.org/record/7156716/files/figure.png" pageId="3" pageNumber="272">Fig. 3</figureCitation>
|
||
,
|
||
<figureCitation box="[1231,1311,410,436]" captionStart="FIGURE 2" captionStartId="3.[136,229,1989,2011]" captionTargetBox="[222,1366,569,1964]" captionTargetId="figure-213@3.[222,1366,569,1964]" captionTargetPageId="3" captionText="FIGURE 2. Lamprothamnium sardoum in life. A) Sparse stands in shallow, brackish water in its habitat (Sardinia, 2018–04–05). Scale = 10 cm. B) Detail of the base of a whorl with abundant gametangia. Scale = 2 cm. C) Branchlet tips. Scale = 1 mm. D) Detail of single branchlet end cell. Scale = 0.5 mm. E) Oospore attached to the base of the plant. Scale = 200 µm (Photos R. Becker)." figureDoi="http://doi.org/10.5281/zenodo.7156714" httpUri="https://zenodo.org/record/7156714/files/figure.png" pageId="3" pageNumber="272">Fig.2E</figureCitation>
|
||
).
|
||
<emphasis box="[1332,1452,410,436]" italics="true" pageId="3" pageNumber="272">Antheridia</emphasis>
|
||
325–450 µm in diameter, orange, solitary or conjoined with oogonia on the branchlets (
|
||
<figureCitation box="[1112,1200,446,472]" captionStart="FIGURE 1" captionStartId="2.[136,229,1553,1575]" captionTargetBox="[252,1421,380,1497]" captionTargetId="figure-55@2.[151,1435,361,1526]" captionTargetPageId="2" captionText="FIGURE 1. Morphology of Lamprothamnium sardoum R.Becker. A) placement and arrangement of gametangia at the base of the whorl and on the branchlets (some branchlets removed) illustrating abundant gametangia clustered and geminate on the branchlets, as well as inside and outside the base of the whorl. Scale = 0.5 mm. B) Herbarium material (circled) showing long protonemata and fox-tail whorls. Scale = 1 cm. C) Apex of plant with several whorls. Gametangia are abundantly visible on the thallus, along with verticillate, spreading bract cells. Scale = 0.5 mm. D) Arrangment of gametangia when conjoined, antheridium above oogonium in common with other species of Lamprothamnium. Scale = 0.1 mm. E) Fertilised oospore and bract cells on a branchlet." figureDoi="http://doi.org/10.5281/zenodo.7156712" httpUri="https://zenodo.org/record/7156712/files/figure.png" pageId="3" pageNumber="272">Fig. 1D</figureCitation>
|
||
), as well as inside and outside the base of the whorl.
|
||
<emphasis box="[473,739,482,508]" italics="true" pageId="3" pageNumber="272">Vegetative reproduction</emphasis>
|
||
not known.
|
||
<emphasis box="[879,1038,482,508]" italics="true" pageId="3" pageNumber="272">Chromosomes</emphasis>
|
||
not known.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection box="[189,1267,518,545]" pageId="3" pageNumber="272" type="etymology">
|
||
<paragraph blockId="3.[136,1452,158,545]" box="[189,1267,518,545]" pageId="3" pageNumber="272">
|
||
<emphasis bold="true" box="[189,328,518,544]" pageId="3" pageNumber="272">Etymology:</emphasis>
|
||
The specific epithet is named for the island of
|
||
<collectingRegion box="[855,948,518,544]" country="Italy" name="Sardegna" pageId="3" pageNumber="272">Sardinia</collectingRegion>
|
||
where collection was made.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |