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<document ID-DOI="10.37520/fi.2021.016" ID-ISSN="2533-4069" ID-Zenodo-Dep="7167561" approvalRequired="48" approvalRequired_for_taxonomicNames="27" approvalRequired_for_textStreams="19" approvalRequired_for_treatments="2" checkinTime="1665260427164" checkinUser="felipe" docAuthor="Friis, Else Marie, Crane, Peter R. &amp; Pedersen, Kaj Raunsgaard" docDate="2021" docId="03F487DBFF852461FF2AF9F5FBCFCA62" docLanguage="en" docName="FossilImprint.77.2.214-230.pdf" docOrigin="Fossil Imprint 77 (2)" docSource="http://dx.doi.org/10.37520/fi.2021.016" docStyle="DocumentStyle:0EC54BF35E227CA4627F894F6BA30634.2:FossilImprint.2016-.journal_article" docStyleId="0EC54BF35E227CA4627F894F6BA30634" docStyleName="FossilImprint.2016-.journal_article" docStyleVersion="2" docTitle="Miranthus kvacekii E. M. FRIIS, P. R. CRANE et K. R. PEDERSEN 2021, sp. nov." docType="treatment" docVersion="2" lastPageNumber="222" masterDocId="FFCDFFA3FF8D2468FFF2FF81FFF7CC3C" masterDocTitle="Early Flowers Of Primuloid Ericales From The Late Cretaceous Of Portugal And Their Ecological And Phytogeographic Implications" masterLastPageNumber="230" masterPageNumber="214" pageNumber="222" updateTime="1665273363288" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-NC-ND-3.0">
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<mods:title>Early Flowers Of Primuloid Ericales From The Late Cretaceous Of Portugal And Their Ecological And Phytogeographic Implications</mods:title>
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<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Friis, Else Marie</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Crane, Peter R.</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Pedersen, Kaj Raunsgaard</mods:namePart>
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<mods:title>Fossil Imprint</mods:title>
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<mods:date>2021</mods:date>
<mods:detail type="pubDate">
<mods:number>2021-12-24</mods:number>
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<mods:detail type="volume">
<mods:number>77</mods:number>
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<mods:number>2</mods:number>
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<mods:identifier type="DOI">10.37520/fi.2021.016</mods:identifier>
<mods:identifier type="ISSN">2533-4069</mods:identifier>
<mods:identifier type="Zenodo-Dep">7167561</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:03F487DBFF852461FF2AF9F5FBCFCA62" httpUri="http://treatment.plazi.org/id/03F487DBFF852461FF2AF9F5FBCFCA62" lastPageId="9" lastPageNumber="222" pageId="8" pageNumber="222">
<subSubSection pageId="8" pageNumber="222" type="nomenclature">
<paragraph blockId="8.[216,680,1652,1710]" pageId="8" pageNumber="222">
<heading centered="true" fontSize="8" level="2" pageId="8" pageNumber="222" reason="2">
<emphasis bold="true" pageId="8" pageNumber="222">
<taxonomicName authority="E.M.FRIIS, P.R.CRANE et K.R.PEDERSEN" authorityName="E. M. FRIIS, P. R. CRANE et K. R. PEDERSEN" authorityYear="2021" class="Magnoliopsida" family="Primulaceae" genus="Miranthus" kingdom="Plantae" order="Ericales" pageId="8" pageNumber="222" phylum="Tracheophyta" rank="species" species="kvacekii" status="sp. nov.">
<emphasis bold="true" box="[216,430,1652,1676]" italics="true" pageId="8" pageNumber="222">Miranthus kvacekii</emphasis>
E.M.FRIIS, P.R.CRANE et K.R.PEDERSEN
</taxonomicName>
<taxonomicNameLabel box="[501,587,1686,1710]" pageId="8" pageNumber="222" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph blockId="8.[374,522,1718,1742]" box="[374,522,1718,1742]" pageId="8" pageNumber="222">
<figureCitation box="[374,522,1718,1742]" captionStart="Text-fig" captionStartId="10.[147,228,1815,1836]" captionTargetBox="[148,1463,151,1799]" captionTargetId="figure-2@10.[-3,1584,55,2300]" captionTargetPageId="10" captionText="Text-fig. 7. SEM (a) and SRXTM (be) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (ae, holotype). Scale bars = 600 µm (ac), 300 µm (d, e)." figureDoi="http://doi.org/10.5281/zenodo.7167575" httpUri="https://zenodo.org/record/7167575/files/figure.png" pageId="8" pageNumber="222">Text-fig. 7ae</figureCitation>
</paragraph>
</subSubSection>
<subSubSection lastPageId="9" lastPageNumber="223" pageId="8" pageNumber="222" type="description">
<paragraph blockId="8.[129,767,1766,1824]" pageId="8" pageNumber="222">H o l o t y p e. S170157 (Mira sample 100; figured Textfig. 7ae).</paragraph>
<paragraph blockId="8.[129,765,1848,1905]" box="[166,765,1848,1872]" pageId="8" pageNumber="222">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>
<paragraph blockId="8.[129,765,1848,1905]" box="[129,455,1881,1905]" pageId="8" pageNumber="222">PFN002673 (for new species).</paragraph>
<paragraph blockId="8.[129,767,1929,1986]" box="[166,767,1929,1953]" pageId="8" pageNumber="222">R e p o s i t o r y. Palaeobotanical Collections, Swedish</paragraph>
<paragraph blockId="8.[129,767,1929,1986]" box="[129,695,1962,1986]" pageId="8" pageNumber="222">
<materialsCitation box="[129,690,1962,1986]" collectionCode="S" country="Sweden" location="Museum of Natural History" pageId="8" pageNumber="222" specimenCount="1" stateProvince="Stockholm">
<location LSID="urn:lsid:plazi:treatment:03F487DBFF852461FF2AF9F5FBCFCA62:8E826016FF852460FF73F82BFE5ECBFE" box="[129,425,1962,1986]" country="Sweden" name="Museum of Natural History" pageId="8" pageNumber="222" stateProvince="Stockholm">Museum of Natural History</location>
,
<collectingRegion box="[436,554,1962,1986]" country="Sweden" name="Stockholm" pageId="8" pageNumber="222">Stockholm</collectingRegion>
,
<collectingCountry box="[565,649,1962,1986]" name="Sweden" pageId="8" pageNumber="222">Sweden</collectingCountry>
(
<collectionCode box="[665,681,1962,1986]" country="Sweden" lsid="urn:lsid:biocol.org:col:15668" name="Department of Botany, Swedish Museum of Natural History" pageId="8" pageNumber="222" type="Herbarium">S</collectionCode>
)
</materialsCitation>
.
</paragraph>
<paragraph blockId="8.[129,768,2010,2100]" pageId="8" pageNumber="222">E t y m o l o g y. In commemoration of Zlatko Kvaček and his outstanding contributions to Cretaceous and Cainozoic angiosperm palaeobotany.</paragraph>
<paragraph blockId="8.[843,1481,1652,1710]" pageId="8" pageNumber="222">
<materialsCitation collectionCode="T" latitude="40.416668" location="Aveiro" longLatPrecision="925" longitude="-8.7375" pageId="8" pageNumber="222" specimenCount="1" stateProvince="Aveiro">
<collectionCode box="[881,897,1653,1676]" name="Tavera, Department of Geology and Geophysics" pageId="8" pageNumber="222">T</collectionCode>
y p e l o c a l i t y. Mira (
<geoCoordinate box="[1178,1290,1652,1677]" degrees="40" direction="north" minutes="25" orientation="latitude" pageId="8" pageNumber="222" precision="925" value="40.416668">40° 25ʹ N</geoCoordinate>
;
<geoCoordinate box="[1305,1470,1652,1677]" degrees="08" direction="west" minutes="44" orientation="longitude" pageId="8" pageNumber="222" precision="15" seconds="15" value="-8.7375">08° 44ʹ 15ʺ W</geoCoordinate>
), about
<quantity box="[909,973,1686,1710]" metricMagnitude="4" metricUnit="m" metricValue="2.5" pageId="8" pageNumber="222" unit="km" value="25.0">25 km</quantity>
south of
<collectingRegion box="[1071,1146,1686,1710]" country="Portugal" name="Aveiro" pageId="8" pageNumber="222">Aveiro</collectingRegion>
</materialsCitation>
,
<materialsCitation box="[1157,1473,1686,1710]" collectionCode="T" country="Portugal" location="Coimbra" pageId="8" pageNumber="222" specimenCount="1" stateProvince="Coimbra">
District of
<collectingRegion box="[1272,1368,1686,1710]" country="Portugal" name="Coimbra" pageId="8" pageNumber="222">Coimbra</collectingRegion>
,
<collectingCountry box="[1379,1473,1686,1710]" name="Portugal" pageId="8" pageNumber="222">Portugal</collectingCountry>
</materialsCitation>
.
</paragraph>
<paragraph blockId="8.[843,1482,1734,1791]" box="[881,1482,1734,1758]" pageId="8" pageNumber="222">T y p e s t r a t u m a n d a g e. “Argilas de Vagos”,</paragraph>
<paragraph blockId="8.[843,1482,1734,1791]" box="[843,1323,1767,1791]" pageId="8" pageNumber="222">Late Cretaceous (Campanian/Maastrichtian).</paragraph>
<paragraph blockId="8.[843,1482,1815,1905]" pageId="8" pageNumber="222">D i a g n o s i s. As for the genus with the following addition: Epidermis of pedicel and outer (abaxial) epidermis of calyx with closely spaced, robust, stiff trichomes.</paragraph>
<paragraph blockId="8.[843,1482,1929,2019]" pageId="8" pageNumber="222">
D i m e n s i o n s. Length of flower excluding pedicel and corolla: 0.81.0 mm; diameter: 0.71.0 mm. Length of flower bud with corolla, but excluding the pedicel:
<quantity box="[1389,1470,1995,2019]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="8" pageNumber="222" unit="mm" value="1.5">1.5 mm</quantity>
.
</paragraph>
<paragraph blockId="8.[843,1482,2043,2100]" box="[881,1477,2043,2067]" pageId="8" pageNumber="222">D e s c r i p t i o n a n d c o m m e n t s o n t h e</paragraph>
<paragraph blockId="8.[843,1482,2043,2100]" lastBlockId="9.[820,1459,1541,1630]" lastPageId="9" lastPageNumber="223" pageId="8" pageNumber="222">
s p e c i e s. The species is based on a single flower bud discovered with
<taxonomicName authorityName="Friis &amp; Crane &amp; Pedersen" authorityYear="2021" box="[287,488,1541,1565]" class="Magnoliopsida" family="Primulaceae" genus="Miranthus" kingdom="Plantae" order="Ericales" pageId="9" pageNumber="223" phylum="Tracheophyta" rank="species" species="elegans">
<emphasis box="[287,488,1541,1565]" italics="true" pageId="9" pageNumber="223">Miranthus elegans</emphasis>
</taxonomicName>
in the Mira mesofossil flora (
<figureCitation box="[168,321,1575,1599]" captionStart="Text-fig" captionStartId="10.[147,228,1815,1836]" captionTargetBox="[148,1463,151,1799]" captionTargetId="figure-2@10.[-3,1584,55,2300]" captionTargetPageId="10" captionText="Text-fig. 7. SEM (a) and SRXTM (be) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (ae, holotype). Scale bars = 600 µm (ac), 300 µm (d, e)." figureDoi="http://doi.org/10.5281/zenodo.7167575" httpUri="https://zenodo.org/record/7167575/files/figure.png" pageId="9" pageNumber="223">Text-fig. 7ae</figureCitation>
). The individual floral parts are strongly appressed and somewhat distorted, which impedes a full understanding of the floral structure and organization (Textfig. 7be). However, the androecium clearly consists of five stamens. The stamens also apparently alternate with the sepals and are obhaplostemonous (
<figureCitation box="[525,682,1742,1766]" captionStart="Text-fig" captionStartId="10.[147,228,1815,1836]" captionTargetBox="[148,1463,151,1799]" captionTargetId="figure-2@10.[-3,1584,55,2300]" captionTargetPageId="10" captionText="Text-fig. 7. SEM (a) and SRXTM (be) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (ae, holotype). Scale bars = 600 µm (ac), 300 µm (d, e)." figureDoi="http://doi.org/10.5281/zenodo.7167575" httpUri="https://zenodo.org/record/7167575/files/figure.png" pageId="9" pageNumber="223">Text-fig. 7d, e</figureCitation>
). The stamen filaments appear to be fused to the corolla for part of their length, while the anthers are free from the corolla and from each other. Alternating with the filaments are filament-like structures. These are not as distinct as the stamen filaments and interpreted as staminodes (
<figureCitation captionStart="Text-fig" captionStartId="10.[147,228,1815,1836]" captionTargetBox="[148,1463,151,1799]" captionTargetId="figure-2@10.[-3,1584,55,2300]" captionTargetPageId="10" captionText="Text-fig. 7. SEM (a) and SRXTM (be) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (ae, holotype). Scale bars = 600 µm (ac), 300 µm (d, e)." figureDoi="http://doi.org/10.5281/zenodo.7167575" httpUri="https://zenodo.org/record/7167575/files/figure.png" pageId="9" pageNumber="223">Text-fig. 7e</figureCitation>
). The flower bud is similar to
<taxonomicName authorityName="Friis &amp; Crane &amp; Pedersen" authorityYear="2021" box="[477,679,1942,1966]" class="Magnoliopsida" family="Primulaceae" genus="Miranthus" kingdom="Plantae" order="Ericales" pageId="9" pageNumber="223" phylum="Tracheophyta" rank="species" species="elegans">
<emphasis box="[477,679,1942,1966]" italics="true" pageId="9" pageNumber="223">Miranthus elegans</emphasis>
</taxonomicName>
in its characteristic free, dome-shaped placenta (
<figureCitation captionStart="Text-fig" captionStartId="10.[147,228,1815,1836]" captionTargetBox="[148,1463,151,1799]" captionTargetId="figure-2@10.[-3,1584,55,2300]" captionTargetPageId="10" captionText="Text-fig. 7. SEM (a) and SRXTM (be) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (ae, holotype). Scale bars = 600 µm (ac), 300 µm (d, e)." figureDoi="http://doi.org/10.5281/zenodo.7167575" httpUri="https://zenodo.org/record/7167575/files/figure.png" pageId="9" pageNumber="223">Text-fig. 7b, c</figureCitation>
) and semi-inferior ovary (
<figureCitation box="[414,575,2009,2033]" captionStart="Text-fig" captionStartId="10.[147,228,1815,1836]" captionTargetBox="[148,1463,151,1799]" captionTargetId="figure-2@10.[-3,1584,55,2300]" captionTargetPageId="10" captionText="Text-fig. 7. SEM (a) and SRXTM (be) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (ae, holotype). Scale bars = 600 µm (ac), 300 µm (d, e)." figureDoi="http://doi.org/10.5281/zenodo.7167575" httpUri="https://zenodo.org/record/7167575/files/figure.png" pageId="9" pageNumber="223">Text-fig. 7b, c</figureCitation>
), but differs in having short, densely spaced trichomes on the outer surface of the calyx lobes, particularly along the margins (
<figureCitation box="[652,849,1541,2100]" captionStart="Text-fig" captionStartId="10.[147,228,1815,1836]" captionTargetBox="[148,1463,151,1799]" captionTargetId="figure-2@10.[-3,1584,55,2300]" captionTargetPageId="10" captionText="Text-fig. 7. SEM (a) and SRXTM (be) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (ae, holotype). Scale bars = 600 µm (ac), 300 µm (d, e)." figureDoi="http://doi.org/10.5281/zenodo.7167575" httpUri="https://zenodo.org/record/7167575/files/figure.png" pageId="9" pageNumber="223">Text-fig. 7a</figureCitation>
). Although scattered trichomes and trichome basis are observed in
<taxonomicName authorityName="Friis &amp; Crane &amp; Pedersen" authorityYear="2021" box="[948,1146,1574,1598]" class="Magnoliopsida" family="Primulaceae" genus="Miranthus" kingdom="Plantae" order="Ericales" pageId="9" pageNumber="223" phylum="Tracheophyta" rank="species" species="elegans">
<emphasis box="[948,1146,1574,1598]" italics="true" pageId="9" pageNumber="223">Miranthus elegans</emphasis>
</taxonomicName>
, the trichomes are much finer and less densely spaced.
</paragraph>
</subSubSection>
</treatment>
</document>