218 lines
32 KiB
XML
218 lines
32 KiB
XML
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<mods:title id="833B97FFDAC044356D6E6619535C1731">The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community</mods:title>
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<mods:namePart id="6458668ACDDCE90CB3662C233ABBE8C3">Friis, Else Marie</mods:namePart>
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<mods:namePart id="19E9214BE82EF6A1B60C2D90F16DBE6F">Crane, Peter R.</mods:namePart>
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<mods:namePart id="B44313BC46421876904DD1F73A11B8CE">Pedersen, Kaj Raunsgaard</mods:namePart>
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<mods:date id="B74A1B5560BC64764AE10D6C722FEE8D">2019</mods:date>
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<emphasis id="B94BB114BF36C23ACE32B5B8E3861F94" bold="true" pageId="57" pageNumber="210">
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<taxonomicName id="4C3F1685BF36C23ACE32B5B8E3DA1F92" authority="E.M.FRIIS, P.R.CRANE et K.R.PEDERSEN" authorityName="E. M. FRIIS, P. R. CRANE et K. R. PEDERSEN" authorityYear="2019" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="57" pageNumber="210" phylum="Tracheophyta" rank="species" species="longicolumella" status="sp. nov.">
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<emphasis id="B94BB114BF36C23ACE32B5B8E3FB1FF4" bold="true" box="[874,1155,909,933]" italics="true" pageId="57" pageNumber="210">Eckhartia longicolumella</emphasis>
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E.M.FRIIS, P.R.CRANE et K.R.PEDERSEN
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</taxonomicName>
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<taxonomicNameLabel id="A2780C6FBF36C23AC9F1B598E3861F94" box="[1193,1278,941,965]" pageId="57" pageNumber="210" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8B806D06BF36C23AC97DB5F8E3BA1FB4" blockId="57.[1061,1218,973,997]" box="[1061,1218,973,997]" pageId="57" pageNumber="210">
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<figureCitation id="13047183BF36C23AC97DB5F8E3BA1FB4" box="[1061,1218,973,997]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="57" pageNumber="210">Text-fig. 38a–i</figureCitation>
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</paragraph>
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<subSubSection id="C3253E8DBF36C23FCE02B5C8E7961FBE" lastPageId="60" lastPageNumber="213" pageId="57" pageNumber="210" type="description">
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<paragraph id="8B806D06BF36C23ACE02B5C8E3D71864" blockId="57.[820,1459,1021,1077]" pageId="57" pageNumber="210">
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H o l o t y p e. Designated here. S136754 (Torres Vedras sample 44; figured
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<figureCitation id="13047183BF36C23AC959B228E3DB1864" box="[1025,1187,1053,1077]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="57" pageNumber="210">Text-fig. 38b–i</figureCitation>
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).
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</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B278E2C81835" blockId="57.[820,1456,1100,1157]" box="[858,1456,1100,1125]" pageId="57" pageNumber="210">P l a n t F o s s i l N a m e s R e g i s t r y N u m b e r.</paragraph>
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<paragraph id="8B806D06BF36C23ACE6CB258E30318D4" blockId="57.[820,1456,1100,1157]" box="[820,1147,1133,1157]" pageId="57" pageNumber="210">PFN000473 (for new species).</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B2A8E2CB18E5" blockId="57.[820,1459,1180,1237]" box="[858,1459,1180,1205]" pageId="57" pageNumber="210">P a r a t y p e s. Designated here. S136673, S137901</paragraph>
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<paragraph id="8B806D06BF36C23ACE6CB288E3311884" blockId="57.[820,1459,1180,1237]" box="[820,1097,1212,1237]" pageId="57" pageNumber="210">(Torre Vedras sample 44).</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B2D9E3691915" blockId="57.[820,1460,1260,1348]" pageId="57" pageNumber="210">
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<materialsCitation id="3B57675BBF36C23ACE02B2D9E3751915" collectionCode="R" country="Sweden" county="Swedish Museum of Natural History" location="Palaeobotanical Collections" municipality="Department of Palaeobiology" pageId="57" pageNumber="210" specimenCount="1" stateProvince="Stockholm">
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<collectionCode id="ED2EF5C3BF36C23ACE02B2D9E4141952" box="[858,876,1260,1283]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="57" pageNumber="210">R</collectionCode>
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e p o s i t o r y.
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,
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<collectingMunicipality id="6BE4F77CBF36C23AC861B2D9E4941975" pageId="57" pageNumber="210">Department of Palaeobiology</collectingMunicipality>
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, the
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<collectingCounty id="62E1158ABF36C23AC978B339E2D71975" box="[1056,1455,1292,1316]" pageId="57" pageNumber="210">Swedish Museum of Natural History</collectingCounty>
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,
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<collectingRegion id="49FBA3E4BF36C23ACE6CB319E4D21915" box="[820,938,1324,1348]" country="Sweden" name="Stockholm" pageId="57" pageNumber="210">Stockholm</collectingRegion>
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,
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<collectingCountry id="F3282D96BF36C23ACEEDB319E3751915" box="[949,1037,1324,1348]" name="Sweden" pageId="57" pageNumber="210">Sweden</collectingCountry>
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.
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<paragraph id="8B806D06BF36C23ACE02B369E22A19C5" blockId="57.[820,1459,1372,1428]" pageId="57" pageNumber="210">E t y m o l o g y. From Latin:longus for long and columella referring to the long columellae supporting the muri.</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B399E2CB1992" blockId="57.[820,1459,1451,1508]" box="[858,1459,1451,1476]" pageId="57" pageNumber="210">T y p e l o c a l i t y. Torres Vedras (NE of Forte de</paragraph>
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<paragraph id="8B806D06BF36C23ACE6CB3F9E3D819B5" blockId="57.[820,1459,1451,1508]" box="[820,1184,1482,1508]" pageId="57" pageNumber="210">
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Forca;
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<geoCoordinate id="EE0B0BC1BF36C23ACE27B3FFE37F19B2" box="[895,1031,1482,1507]" degrees="39" direction="north" minutes="06" orientation="latitude" pageId="57" pageNumber="210" precision="15" seconds="13" value="39.10361">39°06′13″ N</geoCoordinate>
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,
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<geoCoordinate id="EE0B0BC1BF36C23AC94AB3FFE3EB19B5" box="[1042,1171,1482,1508]" degrees="9" direction="west" minutes="14" orientation="longitude" pageId="57" pageNumber="210" precision="15" seconds="47" value="-9.246389">9°14′47″ W</geoCoordinate>
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).
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</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B3C9E4B01A05" blockId="57.[820,1459,1531,1620]" pageId="57" pageNumber="210">T y p e s t r a t u m a n d a g e. Lower member of the Almargem Formation; Early Cretaceous (late Barremianearly Aptian).</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B05EE3211A92" blockId="57.[820,1460,1643,1731]" pageId="57" pageNumber="210">D i a g n o s i s. As for the genus with the following additions: Anthers long and narrow. Reticulum fine. Columellae long, scattered.</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B0EEE2D61AA2" blockId="57.[820,1454,1755,1811]" box="[858,1454,1755,1779]" pageId="57" pageNumber="210">D i s t i n g u i s h i n g f e a t u r e s. See comments for</paragraph>
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<paragraph id="8B806D06BF36C23ACE6CB0CEE2771B42" blockId="57.[820,1454,1755,1811]" box="[820,1295,1787,1811]" pageId="57" pageNumber="210">
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<taxonomicName id="4C3F1685BF36C23ACE6CB0CEE33B1B42" authorityName="E. M. FRIIS, P. R. CRANE et K. R. PEDERSEN" authorityYear="2019" box="[820,1091,1787,1811]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="57" pageNumber="210" phylum="Tracheophyta" rank="species" species="brevicolumella">
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<emphasis id="B94BB114BF36C23ACE6CB0CEE33B1B42" box="[820,1091,1787,1811]" italics="true" pageId="57" pageNumber="210">Eckhartia brevicolumella</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C3F1685BF36C23AC92FB0C9E2701B42" authorityName="Friis & Crane & Pedersen" authorityYear="2019" box="[1143,1288,1787,1811]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="57" pageNumber="210" phylum="Tracheophyta" rank="species" species="intermedia">
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<emphasis id="B94BB114BF36C23AC92FB0C9E2701B42" box="[1143,1288,1787,1811]" italics="true" pageId="57" pageNumber="210">E. intermedia</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B11EE2CB1B32" blockId="57.[820,1459,1834,1891]" pageId="57" pageNumber="210">
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D i m e n s i o n s. Length of anthers: about
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; width of anthers:
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. Length of pollen grains: 16–19 µm.
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</paragraph>
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<paragraph id="8B806D06BF36C23ACE02B14EE3D81462" blockId="57.[820,1459,1914,2100]" pageId="57" pageNumber="210">
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D e s c r i p t i o n a n d r e m a r k s.
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<taxonomicName id="4C3F1685BF36C23AC9A5B14FE4E51BE3" authorityName="E. M. FRIIS, P. R. CRANE et K. R. PEDERSEN" authorityYear="2019" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="57" pageNumber="210" phylum="Tracheophyta" rank="species" species="longicolumella">
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<emphasis id="B94BB114BF36C23AC9A5B14FE4E51BE3" italics="true" pageId="57" pageNumber="210">Eckhartia longicolumella</emphasis>
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</taxonomicName>
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||
is based on a single well-preserved anther and several anther fragments. It was first illustrated by
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<bibRefCitation id="EFAE10F7BF36C23AC812B18EE4F21BA2" author="Friis, E. M. & Pedersen, K. R. & Crane, P. R." pageId="57" pageNumber="210" pagination="341 - 361" refId="ref77134" refString="Friis, E. M., Pedersen, K. R., Crane, P. R. (2010 a): Creta- ceous diversification of angiosperms in the western part of the Iberian Peninsula. - Review of Palaeobotany and Palynology, 162: 341 - 361. https: // doi. org / 10.1016 / j. revpalbo. 2009.11.009" type="journal article" year="2010">Friis et al. (2010a)</bibRefCitation>
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, but not formally described or named. The anthers are about
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long,
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<quantity id="4CC7C0E3BF36C23AC961B1CEE3EE1442" box="[1081,1174,2043,2067]" metricMagnitude="-4" metricUnit="m" metricValue="1.5" pageId="57" pageNumber="210" unit="mm" value="0.15">0.15 mm</quantity>
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wide and are dithecate and tetrasporangiate (
|
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<figureCitation id="13047183BF36C23ACEB4BE2EE3EB1462" box="[1004,1171,2075,2100]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="57" pageNumber="210">Text-fig. 38a, b</figureCitation>
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||
).
|
||
</paragraph>
|
||
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<paragraph id="8B806D06BF35C239CDCBB106E42C1463" blockId="58.[147,1463,1843,2098]" pageId="58" pageNumber="211">
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Text-fig. 37. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of
|
||
<taxonomicName id="4C3F1685BF35C239C937B106E2131B19" authority="Friis & Crane & Pedersen, 2019" authorityName="Friis & Crane & Pedersen" authorityYear="2019" box="[1135,1387,1843,1864]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="58" pageNumber="211" phylum="Tracheophyta" rank="species" species="brevicolumella" status="gen. et sp. nov.">
|
||
<emphasis id="B94BB114BF35C239C937B106E2131B19" bold="true" box="[1135,1387,1843,1864]" italics="true" pageId="58" pageNumber="211">Eckhartia brevicolumella</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A2780C6FBF35C239C82BB106E79A1B34" pageId="58" pageNumber="211" rank="species">gen. et sp. nov.</taxonomicNameLabel>
|
||
from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther partially split along the elongated sporangia; b) Dithecate, tetrasporangiate anther; c) Holotype; distal view of pollen grain from holotype showing the long colpus with a distinct margin and a heterobrochate reticulum; d) Distal view of pollen grain from a stamen fragment showing long colpus, colpus margin and heterobrochate reticulum; e) Inner surface of anther wall from stamen fragment showing densely spaced dentate orbicules; f) Lateral view of pollen grains from stamen showing the psilate to foveolate-microreticulate colpus margin; g) Detail of pollen grain from holotype showing the slightly rounded profile of the muri, the short, densely spaced columellae and the dentate orbicules. Specimens, TV44-S136662 (a), TV44-S149204 (b), TV44-S136760 (holotype; c, g), TV44-S148021 (d, e), TV44-S136752 (f). Scale bars 300 Μm (a, b), 6 Μm (c, d, f), 3 Μm (e, g).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF403D8EBF34C238CD25B19BE2D8144A" ID-DOI="http://doi.org/10.5281/zenodo.5386331" ID-Zenodo-Dep="5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="59" pageNumber="212" startId="59.[125,206,1966,1987]" targetBox="[127,1440,151,1946]" targetPageId="59">
|
||
<paragraph id="8B806D06BF34C238CD25B19BE2D8144A" blockId="59.[125,1440,1966,2075]" pageId="59" pageNumber="212">
|
||
Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of
|
||
<taxonomicName id="4C3F1685BF34C238C917B19BE2341B92" authority="Friis & Crane & Pedersen, 2019" authorityName="Friis & Crane & Pedersen" authorityYear="2019" box="[1103,1356,1966,1987]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="59" pageNumber="212" phylum="Tracheophyta" rank="species" species="longicolumella" status="sp. nov.">
|
||
<emphasis id="B94BB114BF34C238C917B19BE2341B92" bold="true" box="[1103,1356,1966,1987]" italics="true" pageId="59" pageNumber="212">Eckhartia longicolumella</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A2780C6FBF34C238C80BB19BE2D81B92" box="[1363,1440,1966,1987]" pageId="59" pageNumber="212" rank="species">sp. nov.</taxonomicNameLabel>
|
||
from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8B806D06BF33C23FCDFEB6A2E6BC1EAA" blockId="60.[128,768,151,763]" pageId="60" pageNumber="213">
|
||
Pollen grains are about 16–19 µm in equatorial diameter and monocolpate. The exine is semitectate-reticulate, heterobrochate and columellate (
|
||
<figureCitation id="13047183BF33C23FCF5EB6ECE5CE1CA0" box="[518,694,217,241]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="60" pageNumber="213">Text-fig. 38c–i</figureCitation>
|
||
). The reticulum over most of the pollen grain is relatively fine compared to the reticulum of
|
||
<emphasis id="B94BB114BF33C23FCCBAB72FE4781D63" box="[482,768,282,306]" italics="true" pageId="60" pageNumber="213">
|
||
<taxonomicName id="4C3F1685BF33C23FCCBAB72FE5841D63" authorityName="Friis & Crane & Pedersen" authorityYear="2019" box="[482,764,282,306]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="60" pageNumber="213" phylum="Tracheophyta" rank="species" species="brevicolumella">Eckhartia brevicolumella</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
Lumina are of two sizes; larger lumina are up to about 1.35 µm in diameter (
|
||
<figureCitation id="13047183BF33C23FCC23B76EE5771D22" box="[379,527,347,371]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="60" pageNumber="213">
|
||
Text-fig.
|
||
<quantity id="4CC7C0E3BF33C23FCCBBB76EE5771D22" box="[483,527,347,371]" metricMagnitude="-2" metricUnit="kg" metricValue="3.8" pageId="60" pageNumber="213" unit="g" value="38.0">38g</quantity>
|
||
</figureCitation>
|
||
). Towards the colpus margin, and particularly around the end of the colpi, the lumina become very small and the colpus margin is psilate (
|
||
<figureCitation id="13047183BF33C23FCDD0B788E62A1D84" box="[136,338,445,469]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="60" pageNumber="213">Text-fig. 38c, e, f</figureCitation>
|
||
). Muri are about 0.2 µm wide with a rounded or flattened profile. Columellae are long, about 0.45 µm long, typically widely spaced (
|
||
<figureCitation id="13047183BF33C23FCF1EB7CAE5891E46" box="[582,753,511,535]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="60" pageNumber="213">
|
||
Text-fig.
|
||
<quantity id="4CC7C0E3BF33C23FCFF6B7CAE5A01E46" box="[686,728,511,535]" metricMagnitude="-2" metricUnit="kg" metricValue="3.8" pageId="60" pageNumber="213" unit="g" value="38.0">38g</quantity>
|
||
, i
|
||
</figureCitation>
|
||
). The reticulum is only loosely attached and easily separates from the foot layer, leaving the foot layer naked or with only columellae attached (
|
||
<figureCitation id="13047183BF33C23FCCFBB455E52D1E29" box="[419,597,608,633]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="60" pageNumber="213">Text-fig. 38 h, i</figureCitation>
|
||
). Orbicules are densely distributed on the inner surface of the anther wall and scattered among the pollen grains (
|
||
<figureCitation id="13047183BF33C23FCF6BB497E5B91EEB" box="[563,705,674,698]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="60" pageNumber="213">Text-fig. 38f</figureCitation>
|
||
). The orbicules are closely similar to the tooth-like orbicules of
|
||
<taxonomicName id="4C3F1685BF33C23FCFB0B4F6E6671EAA" authorityName="Friis & Crane & Pedersen" authorityYear="2019" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="60" pageNumber="213" phylum="Tracheophyta" rank="species" species="brevicolumella">
|
||
<emphasis id="B94BB114BF33C23FCFB0B4F6E6671EAA" italics="true" pageId="60" pageNumber="213">E. brevicolumella</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="13047183BF33C23FCC75B4D6E6C01EAA" box="[301,440,739,763]" captionStart="Text-fig" captionStartId="59.[125,206,1966,1987]" captionTargetBox="[127,1440,151,1946]" captionTargetId="figure-15@59.[124,808,679,1427]" captionTargetPageId="59" captionText="Text-fig. 38. Scanning electron microscope (SEM) images of anthers and monocolpate pollen of Eckhartia longicolumella sp. nov. from stamen fragment; Torres Vedras locality, Portugal. a) Dithecate, tetrasporangiate anther that yielded the same kind of pollen as the holotype (b); b) Holotype; stamen fragment that yielded the pollen shown in this Text-figure; c–e) Pollen grains showing the elongated colpi, reticulum with large and small luminae and continuous muri along the aperture margins; f, g) Pollen grains in" figureDoi="http://doi.org/10.5281/zenodo.5386331" httpUri="https://zenodo.org/record/5386331/files/figure.png" pageId="60" pageNumber="213">Text-fig. 38f</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8B806D06BF33C23FCDFEB526E7961FBE" blockId="60.[128,768,787,1007]" pageId="60" pageNumber="213">
|
||
A f f i n i t y a n d o t h e r o c c u r r e n c e s. Like
|
||
<taxonomicName id="4C3F1685BF33C23FCDD8B506E6EB1F1A" authorityName="Friis & Crane & Pedersen" authorityYear="2019" box="[128,403,819,843]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="60" pageNumber="213" phylum="Tracheophyta" rank="species" species="brevicolumella">
|
||
<emphasis id="B94BB114BF33C23FCDD8B506E6EB1F1A" box="[128,403,819,843]" italics="true" pageId="60" pageNumber="213">Eckhartia brevicolumella</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C3F1685BF33C23FCCFDB501E51F1F1A" authorityName="Friis & Crane & Pedersen" authorityYear="2019" box="[421,615,819,843]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="60" pageNumber="213" phylum="Tracheophyta" rank="species" species="longicolumella">
|
||
<emphasis id="B94BB114BF33C23FCCFDB501E51F1F1A" box="[421,615,819,843]" italics="true" pageId="60" pageNumber="213">E. longicolumella</emphasis>
|
||
</taxonomicName>
|
||
has not been observed in any other mesofossil flora from
|
||
<collectingCountry id="F3282D96BF33C23FCF34B561E5B21F3D" box="[620,714,852,876]" name="Portugal" pageId="60" pageNumber="213">Portugal</collectingCountry>
|
||
. The grains of
|
||
<taxonomicName id="4C3F1685BF33C23FCDBCB540E6D91FDC" authorityName="Friis & Crane & Pedersen" authorityYear="2019" box="[228,417,885,909]" class="Magnoliopsida" family="Chloranthaceae" genus="Eckhartia" kingdom="Plantae" order="Chloranthales" pageId="60" pageNumber="213" phylum="Tracheophyta" rank="species" species="longicolumella">
|
||
<emphasis id="B94BB114BF33C23FCDBCB540E6D91FDC" box="[228,417,885,909]" italics="true" pageId="60" pageNumber="213">E. longicolumella</emphasis>
|
||
</taxonomicName>
|
||
resemble the grains found on the stigmatic surface of
|
||
<taxonomicName id="4C3F1685BF33C23FCC3AB5A0E5781FFC" box="[354,512,917,941]" class="Magnoliopsida" family="Chloranthaceae" genus="Canrightia" kingdom="Plantae" order="Chloranthales" pageId="60" pageNumber="213" phylum="Tracheophyta" rank="species" species="undetermined">
|
||
<emphasis id="B94BB114BF33C23FCC3AB5A0E6AF1FFC" box="[354,471,917,941]" italics="true" pageId="60" pageNumber="213">Canrightia</emphasis>
|
||
sp.
|
||
</taxonomicName>
|
||
described here (p. 183 herein), but differ in the shape of the muri and details of the reticulum.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |