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<mods:title id="7445D24729FF0F7CDE89953F9062BC9C">Phylogenetic revision of Dennstaedtioideae (Dennstaedtiaceae: Polypodiales) with description of Mucura, gen. nov.</mods:title>
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<mods:namePart id="E8D59AC2A1EF68C9F851D0FCB3D6AC9B">Triana-Moreno, Luz A.</mods:namePart>
<mods:affiliation id="D24CA1F9798615C8B6572C13117297BC">Agustina Yañez, &amp; Departamento de Ciencias Biológicas, Universidad de Caldas, Manizales, Colombia; and Programa de Doctorado en Ciencias</mods:affiliation>
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<mods:namePart id="04D32EC3838E6953EEB0532F7CBF83F6">Yañez, Agustina</mods:namePart>
<mods:affiliation id="72BE071AD0C4F2ACC955AAA605F53ACA">Li-Yaung Kuo, &amp; Museo Argentino de Ciencias Naturales “ Bernardino Rivadavia ”, CONICET, División Plantas Vasculares, Av. Angel´Gallardo &amp; C 1405 DJR, Ciudad Autónoma de Buenos Aires, Argentina</mods:affiliation>
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<mods:namePart id="11A61A8036729BA20404ACA6CD7F0EDE">Kuo, Li-Yaung</mods:namePart>
<mods:affiliation id="FE559677F9DC180BC3ED0267070F6C5A">Carl J. Rothfels, &amp; Institute of Molecular &amp; Cellular Biology, National Tsing Hua University, Hsinchu City, Hsinchu, Taiwan</mods:affiliation>
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<mods:namePart id="846B1FBCF03E93804F7CC8D35E8E3131">Rothfels, Carl J.</mods:namePart>
<mods:affiliation id="D5D2DBA5327E9D2E07757D1F72E1F41A">Nelson Túlio L. Pena, &amp; Intermountain Herbarium and Department of Biology, Utah State University, Logan, Utah 84321, U. S. A.</mods:affiliation>
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<mods:namePart id="20CBC7171BA26437BC182921EB7F16F5">Pena, Nelson Túlio L.</mods:namePart>
<mods:affiliation id="A947143AA3F8DC3B798427760A764308">Pedro B. Schwartsburd &amp; &amp; Michael Sundue &amp; Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Av. P. H. Rolfs s. n., Viçosa, 36570 - 900, MG, Brazil</mods:affiliation>
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<mods:namePart id="368651213A64198420861B201762CD64">Schwartsburd, Pedro B.</mods:namePart>
<mods:affiliation id="BE70E307FB67FEFBE03D6C8574F8A004">Pedro B. Schwartsburd &amp; &amp; Michael Sundue &amp; Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Av. P. H. Rolfs s. n., Viçosa, 36570 - 900, MG, Brazil</mods:affiliation>
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<mods:namePart id="0D821C65865C6AFFD4078321F9AD3602">Sundue, Michael</mods:namePart>
<mods:affiliation id="D1170A9BED2A50FC1D5463D6CAE1BDE4">Deptartment of Plant Biology, University of Vermont, Burlington, Vermont 05405, U. S. A. Address for correspondence: Michael Sundue, sundue @ gmail. com</mods:affiliation>
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<treatment id="902087C5FF9CFFEFFFF4FA2CFA5AFAEA" ID-GBIF-Taxon="247574093" LSID="urn:lsid:plazi:treatment:902087C5FF9CFFEFFFF4FA2CFA5AFAEA" httpUri="http://treatment.plazi.org/id/902087C5FF9CFFEFFFF4FA2CFA5AFAEA" lastPageNumber="40" pageId="20" pageNumber="40" scope_family="Dennstaedtiaceae" scope_order="Polypodiales">
<heading id="437E81BFFF9CFFEFFFF4FA2CFD3FFA4A" box="[103,751,1498,1522]" centered="true" fontSize="10" level="2" pageId="20" pageNumber="40" reason="5">
<subSubSection id="50936558FF9CFFEFFFF4FA2CFD90FA4A" box="[103,576,1498,1522]" pageId="20" pageNumber="40" type="nomenclature">
<paragraph id="183636D3FF9CFFEFFFF4FA2CFD90FA4A" blockId="20.[103,751,1498,1970]" box="[103,576,1498,1522]" pageId="20" pageNumber="40">
IV.
<taxonomicName id="DF894D50FF9CFFEFFF1CFA2DFF37FA4A" ID-CoL="BDMC5" authority="L.A.Triana &amp; Sundue" authorityName="Triana-Moreno &amp; Yañez &amp; Kuo &amp; Rothfels &amp; Pena &amp; Schwartsburd &amp; Sundue" authorityYear="2023" box="[143,231,1498,1522]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Mucura" higherTaxonomySource="CoL,GBIF" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">Mucura</taxonomicName>
<collectionCode id="7E98AE16FF9CFFEFFF7EFA2CFF2EFA4A" box="[237,254,1499,1522]" country="Netherlands" lsid="urn:lsid:biocol.org:col:15678" name="Nationaal Herbarium Nederland, Leiden University branch" pageId="20" pageNumber="40" type="Herbarium">L</collectionCode>
.
<collectionCode id="7E98AE16FF9CFFEFFE92FA2CFEC5FA4A" box="[257,277,1499,1522]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="20" pageNumber="40" type="Herbarium">A</collectionCode>
.
<collectorName id="B57C5305FF9CFFEFFE8BFA2CFEB2FA4A" box="[280,354,1499,1522]" pageId="20" pageNumber="40">Triana</collectorName>
&amp;
<collectorName id="B57C5305FF9CFFEFFE11FA2CFE04FA4A" box="[386,468,1499,1522]" pageId="20" pageNumber="40">Sundue</collectorName>
,
<emphasis id="2AFDEAC1FF9CFFEFFE4DFA2CFD90FA4A" bold="true" box="[478,576,1499,1522]" pageId="20" pageNumber="40">
<taxonomicNameLabel id="31CE57BAFF9CFFEFFE4DFA2CFD90FA4A" box="[478,576,1499,1522]" pageId="20" pageNumber="40" rank="genus">gen. nov.</taxonomicNameLabel>
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="50936558FF9CFFEFFDD6FA2DFDE5F9AA" pageId="20" pageNumber="40" type="type_taxon">
<paragraph id="183636D3FF9CFFEFFDD6FA2DFDE5F9AA" blockId="20.[103,751,1498,1970]" pageId="20" pageNumber="40">
<typeStatus id="C7328871FF9CFFEFFDCBFA2CFD42FA4A" box="[600,658,1499,1522]" pageId="20" pageNumber="40">Type</typeStatus>
:
<taxonomicName id="DF894D50FF9CFFEFFD0FFA2CFD3FFA4A" box="[668,751,1499,1522]" pageId="20" pageNumber="40">
<emphasis id="2AFDEAC1FF9CFFEFFD0FFA2CFD3FFA4A" box="[668,751,1499,1522]" italics="true" pageId="20" pageNumber="40">Mucura</emphasis>
</taxonomicName>
<emphasis id="2AFDEAC1FF9CFFEFFF07FA0CFF2AF9AA" box="[148,250,1531,1554]" italics="true" pageId="20" pageNumber="40">bipinnata</emphasis>
(Cav.) L.A.Triana &amp; Sundue
</paragraph>
</subSubSection>
</heading>
<subSubSection id="50936558FF9CFFEFFDADFA0CFEFAF98A" pageId="20" pageNumber="40" type="reference_group">
<paragraph id="183636D3FF9CFFEFFDADFA0CFEFAF98A" blockId="20.[103,751,1498,1970]" pageId="20" pageNumber="40">
(≡
<taxonomicName id="DF894D50FF9CFFEFFDCDFA0CFF35F98A" authority="Cav." class="Polypodiopsida" family="Dicksoniaceae" genus="Dicksonia" kingdom="Plantae" order="Cyatheales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">Dicksonia bipinnata</taxonomicName>
Cav.).
</paragraph>
</subSubSection>
<subSubSection id="50936558FF9CFFEFFF07F9CCFE44F94A" pageId="20" pageNumber="40" type="diagnosis">
<paragraph id="183636D3FF9CFFEFFF07F9CCFE44F94A" blockId="20.[103,751,1498,1970]" pageId="20" pageNumber="40">
<emphasis id="2AFDEAC1FF9CFFEFFF07F9CCFEC8F9E9" box="[148,280,1595,1618]" italics="true" pageId="20" pageNumber="40">Diagnosis. </emphasis>
Differing from all other
<taxonomicName id="DF894D50FF9CFFEFFD84F9CCFD1FF9EA" box="[535,719,1595,1618]" class="Polypodiopsida" family="Dennstaedtiaceae" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="family">Dennstaedtiaceae</taxonomicName>
by having dichotomously branching rhizomes, petioles that lack epipetiolar buds, marginal sori with both abaxial and adaxial indusia forming a cylindrical or cup-shaped involucre, and trilete spores with a verrucate and broadly ridged perispore, and sometimes irregular reticles.
</paragraph>
</subSubSection>
<subSubSection id="50936558FF9CFFEFFF07F90CFCB3FE8A" pageId="20" pageNumber="40" type="description">
<paragraph id="183636D3FF9CFFEFFF07F90CFCB3FE8A" blockId="20.[103,751,1498,1970]" lastBlockId="20.[789,1438,187,1362]" pageId="20" pageNumber="40">
<emphasis id="2AFDEAC1FF9CFFEFFF07F90CFEA8F8AA" box="[148,376,1787,1810]" italics="true" pageId="20" pageNumber="40">Description. Plants</emphasis>
terrestrial;
<emphasis id="2AFDEAC1FF9CFFEFFE61F90CFD80F8AA" box="[498,592,1787,1810]" italics="true" pageId="20" pageNumber="40">rhizomes</emphasis>
long creeping, dichotomously branching, pubescent;
<emphasis id="2AFDEAC1FF9CFFEFFE66F8ECFD95F88A" box="[501,581,1819,1842]" italics="true" pageId="20" pageNumber="40">petioles</emphasis>
subterete, without an adaxial sulcus, with an omega-shaped vascular bundle, lacking epipetiolar buds;
<emphasis id="2AFDEAC1FF9CFFEFFEF9F8ACFE7BF8CA" box="[362,427,1883,1906]" italics="true" pageId="20" pageNumber="40">leaves</emphasis>
large, erect, decompound, laminar axes alate, the wings decurrent onto the next order, lacking proliferous leaf buds;
<emphasis id="2AFDEAC1FF9CFFEFFECCF86CFE44F80A" box="[351,404,1947,1970]" italics="true" pageId="20" pageNumber="40">veins</emphasis>
free, with slender apices;
<emphasis id="2AFDEAC1FF9CFFEFFD55F86CFD3FF80A" box="[710,751,1947,1970]" italics="true" pageId="20" pageNumber="40">sori</emphasis>
marginal, provided with abaxial and adaxial indusia that together form a cylindrical cup-shaped involucre;
<emphasis id="2AFDEAC1FF9CFFEFFA83FF2CFA83FF4A" box="[1296,1363,219,242]" italics="true" pageId="20" pageNumber="40">spores</emphasis>
trilete, broadly ridged and verrucate, and sometimes irregular reticles. (
<figureCitation id="80B22A56FF9CFFEFFC8EFEECFC8AFE8A" box="[797,858,283,306]" captionStart="Fig" captionStartId="19.[151,183,1921,1942]" captionTargetBox="[152,1484,527,1886]" captionTargetId="figure-129@19.[152,1484,527,1886]" captionTargetPageId="19" captionText="Fig. 8. Characters of Mucura. A, Habit; B, Upper leaf surface and alate rachis-costa axes; C, Lower leaf surface and marginal sori with cylindrical indusia; D, Unbranched rhizome and petiole lacking epipetiolar buds. — All photos by M. Sundue." figureDoi="http://doi.org/10.5281/zenodo.14047518" httpUri="https://zenodo.org/record/14047518/files/figure.png" pageId="20" pageNumber="40">Fig. 8</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="50936558FF9CFFEFFCD1FECCFA4DFE2A" pageId="20" pageNumber="40" type="multiple">
<paragraph id="183636D3FF9CFFEFFCD1FECCFA4DFE2A" blockId="20.[789,1438,187,1362]" pageId="20" pageNumber="40">
<emphasis id="2AFDEAC1FF9CFFEFFCD1FECCFBB6FEE9" box="[834,1126,315,338]" italics="true" pageId="20" pageNumber="40">Distribution and habitat. </emphasis>
Distributed from
<collectingCountry id="609E7643FF9CFFEFFAB2FECCFABEFEEA" box="[1313,1390,315,338]" name="Mexico" pageId="20" pageNumber="40">Mexico</collectingCountry>
and the West Indies to the southern cone of South America, in humid forests, from sea level to
<quantity id="DF719B36FF9CFFEFFB9AFE8CFB8AFE2A" box="[1033,1114,379,402]" metricMagnitude="3" metricUnit="m" metricValue="3.5" pageId="20" pageNumber="40" unit="m" value="3500.0">3500 m</quantity>
. Largely absent from Amazonia.
</paragraph>
</subSubSection>
<subSubSection id="50936558FF9CFFEFFCD1FE6CFC2AFD2A" pageId="20" pageNumber="40" type="etymology">
<paragraph id="183636D3FF9CFFEFFCD1FE6CFC2AFD2A" blockId="20.[789,1438,187,1362]" pageId="20" pageNumber="40">
<emphasis id="2AFDEAC1FF9CFFEFFCD1FE6CFC03FE09" box="[834,979,411,434]" italics="true" pageId="20" pageNumber="40">Etymology. </emphasis>
This name is a Spanish feminine noun [mú·ku·ɾa] derived from the Caribbean and Chibcha linguistic families (
<bibRefCitation id="7C184B22FF9CFFEFFCE7FE2CFC28FE4A" author="Florez, L." box="[884,1016,474,498]" pageId="20" pageNumber="40" pagination="286 - 310" refId="ref17831" refString="Florez, L. 1955. Algunas voces indigenas en el espanol de Colombia. Revista Colomb. Antropol. 4: 286 - 310. https: // doi. org / 10.22380 / 2539472 X. 1817" type="journal article" year="1955">Flórez, 1955</bibRefCitation>
) that refers to a fired clay pot, commonly made by indigenous people living within the geographic distribution of the genus. These clay pots are characterized by having a globose base, like the indusium of
<taxonomicName id="DF894D50FF9CFFEFFB5AFDCCFA45FDEA" box="[1225,1429,571,594]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Mucura" higherTaxonomySource="CoL,GBIF" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="species" species="globulifera">
<emphasis id="2AFDEAC1FF9CFFEFFB5AFDCCFA45FDEA" box="[1225,1429,571,594]" italics="true" pageId="20" pageNumber="40">Mucura globulifera</emphasis>
</taxonomicName>
, and a long narrow neck, reminiscent of the cylindrical indusium of
<taxonomicName id="DF894D50FF9CFFEFFCF8FD8CFC23FD2A" box="[875,1011,635,658]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Dennstaedtia" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="species" species="bipinnata">
<emphasis id="2AFDEAC1FF9CFFEFFCF8FD8CFC23FD2A" box="[875,1011,635,658]" italics="true" pageId="20" pageNumber="40">M. bipinnata</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="50936558FF9CFFEFFCD1FD6CFA5AFAEA" pageId="20" pageNumber="40" type="discussion">
<paragraph id="183636D3FF9CFFEFFCD1FD6CFA5AFAEA" blockId="20.[789,1438,187,1362]" pageId="20" pageNumber="40">
<emphasis id="2AFDEAC1FF9CFFEFFCD1FD6CFBFAFD0A" box="[834,1066,667,690]" italics="true" pageId="20" pageNumber="40">
Discussion.
<taxonomicName id="DF894D50FF9CFFEFFC44FD6CFBFAFD0A" authorityName="Triana-Moreno &amp; Yañez &amp; Kuo &amp; Rothfels &amp; Pena &amp; Schwartsburd &amp; Sundue" authorityYear="2023" box="[983,1066,667,690]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Mucura" higherTaxonomySource="CoL,GBIF" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">Mucura</taxonomicName>
</emphasis>
comprises two Neotropical species that may be sister to the clade of
<taxonomicName id="DF894D50FF9CFFEFFBFBFD4CFB0CFD6A" box="[1128,1244,699,722]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Microlepia" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFBFBFD4CFB0CFD6A" box="[1128,1244,699,722]" italics="true" pageId="20" pageNumber="40">Microlepia</emphasis>
</taxonomicName>
and
<taxonomicName id="DF894D50FF9CFFEFFA9DFD4CFA51FD6A" box="[1294,1409,699,722]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Sitobolium" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFA9DFD4CFA51FD6A" box="[1294,1409,699,722]" italics="true" pageId="20" pageNumber="40">Sitobolium</emphasis>
</taxonomicName>
. It is distributed from
<collectingCountry id="609E7643FF9CFFEFFC49FD2CFBFBFD4A" box="[986,1067,731,754]" name="Mexico" pageId="20" pageNumber="40">Mexico</collectingCountry>
and the West Indies to the southern cone of South America but not distributed in Amazonia. Previously treated in
<taxonomicName id="DF894D50FF9CFFEFFC42FCECFA4DFC8A" authority=", Navarrete &amp; Ollgaard (2000)" authorityName=", Navarrete &amp; Ollgaard" authorityYear="2000" box="[977,1437,795,818]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Dennstaedtia" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFC42FCECFB8EFC8A" box="[977,1118,795,818]" italics="true" pageId="20" pageNumber="40">Dennstaedtia</emphasis>
,
<bibRefCitation id="7C184B22FF9CFFEFFBF8FCECFA4DFC8A" author="Navarrete, H. &amp; Ollgaard, B." box="[1131,1437,795,818]" pageId="20" pageNumber="40" pagination="319 - 346" refId="ref19371" refString="Navarrete, H. &amp; Ollgaard, B. 2000. The fern genus Dennstaedtia (Dennstaedtiaceae) in Ecuador, new characters, new species and a new combination. Nordic J. Bot. 20: 319 - 346. https: // doi. org / 10.1111 / j. 1756 - 1051.2000. tb 00747. x" type="journal article" year="2000">Navarrete &amp; Øllgaard (2000)</bibRefCitation>
</taxonomicName>
emphasized the morphological disparity between species treated here as
<taxonomicName id="DF894D50FF9CFFEFFC16FCACFC06FCCA" authorityName="Triana-Moreno &amp; Yañez &amp; Kuo &amp; Rothfels &amp; Pena &amp; Schwartsburd &amp; Sundue" authorityYear="2023" box="[901,982,859,882]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Mucura" higherTaxonomySource="CoL,GBIF" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFC16FCACFC06FCCA" box="[901,982,859,882]" italics="true" pageId="20" pageNumber="40">Mucura</emphasis>
</taxonomicName>
and other Neotropical species of
<taxonomicName id="DF894D50FF9CFFEFFAB6FCACFCE0FC2A" authorityName=", Navarrete &amp; Ollgaard" authorityYear="2000" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Dennstaedtia" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFAB6FCACFCE0FC2A" italics="true" pageId="20" pageNumber="40">Dennstaedtia</emphasis>
</taxonomicName>
. We agree, and our ancestral character state reconstruction recovers several autapomorphic states. It has a rachis-costa architecture found in no other lineage where the axes are provided with adaxial wings that are continuous between orders (from the rachis to the pinna costae, and pinna costae to pinnule costules).
<taxonomicName id="DF894D50FF9CFFEFFC26FBECFBD8FB8A" authorityName="Triana-Moreno &amp; Yañez &amp; Kuo &amp; Rothfels &amp; Pena &amp; Schwartsburd &amp; Sundue" authorityYear="2023" box="[949,1032,1051,1074]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Mucura" higherTaxonomySource="CoL,GBIF" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFC26FBECFBD8FB8A" box="[949,1032,1051,1074]" italics="true" pageId="20" pageNumber="40">Mucura</emphasis>
</taxonomicName>
has a unique perispore ornamentation consisting of verrucae, broad ridges, and irregular reticles on the distal face (
<figureCitation id="80B22A56FF9CFFEFFC21FBACFBD3FBCA" box="[946,1027,1115,1138]" captionStart="Fig" captionStartId="9.[151,183,1201,1222]" captionTargetBox="[331,1306,189,1163]" captionTargetId="figure-0@9.[326,1310,187,1167]" captionTargetPageId="9" captionText="Fig. 4. Examples of perispore morphology of spores in distal view. A, Verrucae and irregular reticles with prominent ridges covering the corners, Mucura globulifera (Yañez &amp; Márquez 86, LP); B, Tubercles, Sitobolium wilfordii (Unknown coll. s.n., UVMVT192145, VT); C, Verrucae and prominent ridges to the spore sides, Sitobolium hirsutum (Rothfels &amp; al. 5282, VT); D, Network of rodlets, Microlepia speluncae (Rojas 4878, MO); E, Regular reticle, Dennstaedtia glabrata (James &amp; Sundue 1593, VT); F, Prominent ridges, Dennstaedtia distenta (Mickel 4163, LP); G, Verrucae and ridges, Dennstaedtia dissecta (Palacios 1296, LP). — Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.14047508" httpUri="https://zenodo.org/record/14047508/files/figure.png" pageId="20" pageNumber="40">Fig. 4A</figureCitation>
). Also unique to
<taxonomicName id="DF894D50FF9CFFEFFB27FBACFAD6FBCA" authorityName="Triana-Moreno &amp; Yañez &amp; Kuo &amp; Rothfels &amp; Pena &amp; Schwartsburd &amp; Sundue" authorityYear="2023" box="[1204,1286,1115,1138]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Mucura" higherTaxonomySource="CoL,GBIF" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFB27FBACFAD6FBCA" box="[1204,1286,1115,1138]" italics="true" pageId="20" pageNumber="40">Mucura</emphasis>
</taxonomicName>
are the subterete petiole bases; as far as we have seen, all other Dennstaedtioideae have petioles that are adaxially sulcate. Notably,
<taxonomicName id="DF894D50FF9CFFEFFC86FB4CFCB7FB6A" authorityName="Triana-Moreno &amp; Yañez &amp; Kuo &amp; Rothfels &amp; Pena &amp; Schwartsburd &amp; Sundue" authorityYear="2023" box="[789,871,1211,1234]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Mucura" higherTaxonomySource="CoL,GBIF" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFC86FB4CFCB7FB6A" box="[789,871,1211,1234]" italics="true" pageId="20" pageNumber="40">Mucura</emphasis>
</taxonomicName>
lacks epipetiolar buds which are present in nearly all other
<taxonomicName id="DF894D50FF9CFFEFFCDCFB2CFBD8FB4A" box="[847,1032,1243,1266]" class="Polypodiopsida" family="Dennstaedtiaceae" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="family">Dennstaedtiaceae</taxonomicName>
. They can further be distinguished from
<taxonomicName id="DF894D50FF9CFFEFFC86FB0CFC70FAAA" authorityName=", Navarrete &amp; Ollgaard" authorityYear="2000" box="[789,928,1275,1298]" class="Polypodiopsida" family="Dennstaedtiaceae" genus="Dennstaedtia" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="40" phylum="Tracheophyta" rank="genus">
<emphasis id="2AFDEAC1FF9CFFEFFC86FB0CFC70FAAA" box="[789,928,1275,1298]" italics="true" pageId="20" pageNumber="40">Dennstaedtia</emphasis>
</taxonomicName>
by their elongate, and branched rhizomes. These distinct morphological features, along with its phylogenetic position, warrant recognition of this clade at the rank of genus.
</paragraph>
</subSubSection>
</treatment>
</document>