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<document id="537AE57E902564FA3639507A3628B5C1" ID-CLB-Dataset="32053" ID-DOI="10.5852/ejt.2017.313" ID-GBIF-Dataset="e9b8382f-faec-4925-993b-f13e4cfa2a71" ID-ISSN="2118-9773" ID-Zenodo-Dep="896401" IM.bibliography_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1505826073288" checkinUser="plazi" docAuthor="Ahamada H. Saïd, Sabine Hennequin, Germinal Rouhan &amp; Jean-Yves Dubuisson" docDate="2017" docId="038B963769362A6AB329FAA91408FAFD" docLanguage="en" docName="EJT-313_Said.pdf" docOrigin="European Journal of Taxonomy 313" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Hymenophyllum inaequale (Poir.) Desv." docType="treatment" docVersion="8" lastPageNumber="27" masterDocId="FFB2EE4F692F2A70B101FFC41109FFE3" masterDocTitle="Disentangling the diversity and taxonomy of Hymenophyllaceae (Hymenophyllales, Polypodiidae) in the Comoros" masterLastPageNumber="53" masterPageNumber="1" pageNumber="26" updateTime="1698468696530" updateUser="ExternalLinkService">
<mods:mods id="769240E43D08448008BC151CA6D61DEC" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="16305C8D047C3CB7A837D24A52A8481E">
<mods:title id="D45A2FA6F0E82C4DC30764FE83236293">Disentangling the diversity and taxonomy of Hymenophyllaceae (Hymenophyllales, Polypodiidae) in the Comoros</mods:title>
</mods:titleInfo>
<mods:name id="7B309D9340BAB02E4CBD4601B2238B84" type="personal">
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<mods:namePart id="8423FAEC34554CA74A2304368F7A39DD">Ahamada H. Saïd</mods:namePart>
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<mods:namePart id="09F81545960C4B9F892DC930BF09C638">Sabine Hennequin</mods:namePart>
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<mods:namePart id="6056C22531E54DBBEAF4D8CBDF423968">Germinal Rouhan</mods:namePart>
</mods:name>
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<mods:namePart id="A3582800A81DBC0FCC1A441689372F56">Jean-Yves Dubuisson</mods:namePart>
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<mods:title id="CAF3EE0DB58D6C99D19311CD07524A71">European Journal of Taxonomy</mods:title>
</mods:titleInfo>
<mods:part id="4EAD04044034317ED24069DA3EC909A3">
<mods:date id="DFD469572B2D06C191FC0744F7527F51">2017</mods:date>
<mods:detail id="B8A768BFE4DB91BDD9E5B815FC5002EF" type="pubDate">
<mods:number id="723339925EE802E655BEE5C851C8BFCE">2017-04-28</mods:number>
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<mods:detail id="DD390F03F080E87FB6B88C3B749102FD" type="volume">
<mods:number id="DD52FA28FC5A8770E7660E7B3CAD6DED">313</mods:number>
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<mods:start id="A7569DEB5D250F0A945339E0892CFC96">1</mods:start>
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<mods:classification id="84B8668939C8D32E96EDAB96A8157E71">journal article</mods:classification>
<mods:identifier id="A7BB1172291B07DF3C5336230FDDF6F3" type="CLB-Dataset">32053</mods:identifier>
<mods:identifier id="01EDB9E2CA8C909CC65CFA112FA1E15E" type="DOI">10.5852/ejt.2017.313</mods:identifier>
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<mods:identifier id="A3F73E1E311B5CF7B7D5896FCC128D0F" type="ISSN">2118-9773</mods:identifier>
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<treatment id="038B963769362A6AB329FAA91408FAFD" ID-DOI="http://doi.org/10.5281/zenodo.5613854" ID-GBIF-Taxon="134311100" ID-Zenodo-Dep="5613854" LSID="urn:lsid:plazi:treatment:038B963769362A6AB329FAA91408FAFD" httpUri="http://treatment.plazi.org/id/038B963769362A6AB329FAA91408FAFD" lastPageId="26" lastPageNumber="27" pageId="25" pageNumber="26">
<subSubSection id="C33874AA69362A69B329FAA91505FA6B" box="[552,1036,1389,1417]" pageId="25" pageNumber="26" type="nomenclature">
<paragraph id="8B9D272169362A69B329FAA91505FA6B" blockId="25.[552,1036,1389,1417]" box="[552,1036,1389,1417]" pageId="25" pageNumber="26">
<heading id="D0D5904D69362A69B329FAA91505FA6B" box="[552,1036,1389,1417]" centered="true" fontSize="11" level="5" pageId="25" pageNumber="26" reason="4">
<taxonomicName id="4C225CA269362A69B329FAA91505FA6B" ID-CoL="3NKFC" authority="(Poir.) Desv." authorityName="(Poir.) Desv." box="[552,1036,1389,1417]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="25" pageNumber="26" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369362A69B329FAA91278FA6B" bold="true" box="[552,881,1389,1416]" italics="true" pageId="25" pageNumber="26">Hymenophyllum inaequale</emphasis>
(Poir.) Desv.
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C33874AA69362A69B1BCFA6B15D2F97E" pageId="25" pageNumber="26" type="reference_group">
<paragraph id="8B9D272169362A69B1BCFA6B147EFA29" blockId="25.[189,1399,1455,1693]" box="[189,1399,1455,1482]" pageId="25" pageNumber="26">
<taxonomicName id="4C225CA269362A69B1BCFA6B12A4FA29" ID-CoL="3NKFC" authority="(Poir.) Desv., Memoires de la Societe" authorityName="(Poir.) Desv., Memoires de la Societe" box="[189,941,1455,1482]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="25" pageNumber="26" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369362A69B1BCFA6B10F1FA2A" box="[189,504,1455,1481]" italics="true" pageId="25" pageNumber="26">Hymenophyllum inaequale</emphasis>
(Poir.) Desv.,
<emphasis id="B956FB3369362A69B39FFA7412A4FA29" box="[670,941,1455,1482]" italics="true" pageId="25" pageNumber="26">Mémoires de la Société</emphasis>
</taxonomicName>
<emphasis id="B956FB3369362A69B2B2FA6B1584FA2A" box="[947,1165,1455,1481]" italics="true" pageId="25" pageNumber="26">linnéenne de Paris</emphasis>
6 (2): 335 (1827). –
</paragraph>
<paragraph id="8B9D272169362A69B1BCFA171541F9F2" blockId="25.[189,1399,1455,1693]" pageId="25" pageNumber="26">
<taxonomicName id="4C225CA269362A69B1BCFA1713C2FA0E" ID-CoL="7CQTB" authority="Poir., Encyclopedie" authorityName="Poir., Encyclopedie" authorityYear="1808" box="[189,715,1490,1517]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Trichomanes" kingdom="Plantae" order="Hymenophyllales" pageId="25" pageNumber="26" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369362A69B1BCFA1710DCFA0E" box="[189,469,1491,1517]" italics="true" pageId="25" pageNumber="26">Trichomanes inaequale</emphasis>
Poir.,
<emphasis id="B956FB3369362A69B32CFA1713C2FA0E" box="[557,715,1491,1517]" italics="true" pageId="25" pageNumber="26">Encyclopedie</emphasis>
</taxonomicName>
<emphasis id="B956FB3369362A69B3D9FA171268FA0E" box="[728,865,1491,1517]" italics="true" pageId="25" pageNumber="26">méthodique</emphasis>
,
<emphasis id="B956FB3369362A69B274FA1712E7FA0F" box="[885,1006,1491,1516]" italics="true" pageId="25" pageNumber="26">Botanique</emphasis>
8: 74 (1808). – Type: ‘l’île de Madagascar’,
<emphasis id="B956FB3369362A69B065FA3313A6F9F3" box="[356,687,1526,1552]" italics="true" pageId="25" pageNumber="26">L.­M.A du Petit­Thouars s.n</emphasis>
. (syn-: P00483501!, P00483502!).
</paragraph>
<paragraph id="8B9D272169362A69B1BCF9DD1404F9B4" blockId="25.[189,1399,1455,1693]" pageId="25" pageNumber="26">
<taxonomicName id="4C225CA269362A69B1BCF9DD13A8F9D0" ID-CoL="6MP2L" authority="Bory ex Willd." authorityName="Bory ex Willd." box="[189,673,1561,1587]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="25" pageNumber="26" phylum="Tracheophyta" rank="species" species="gracile">
<emphasis id="B956FB3369362A69B1BCF9DD10D5F9D0" box="[189,476,1561,1587]" italics="true" pageId="25" pageNumber="26">Hymenophyllum gracile</emphasis>
Bory ex Willd.
</taxonomicName>
,
<emphasis id="B956FB3369362A69B3B0F9DD1286F9D0" box="[689,911,1561,1587]" italics="true" pageId="25" pageNumber="26">Species plantarum</emphasis>
: 527 (1810). – Type: ‘Habitat in sylvis insulae Mauritii’,
<emphasis id="B956FB3369362A69B091F9F91204F9B5" box="[400,781,1596,1623]" italics="true" pageId="25" pageNumber="26">J.B.G.M. Bory de St.­Vincent s.n</emphasis>
. (holo-: BW20231010!; iso-: P00477835!).
</paragraph>
<paragraph id="8B9D272169362A69B1BCF99B146AF99A" blockId="25.[189,1399,1455,1693]" box="[189,1379,1631,1658]" pageId="25" pageNumber="26">
<taxonomicName id="4C225CA269362A69B1BCF99B1385F99A" authority="(Bory) C. Presl" authorityName="(Bory) C.Presl" box="[189,652,1631,1657]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Sphaerocionium" higherTaxonomySource="CoL" kingdom="Plantae" order="Hymenophyllales" pageId="25" pageNumber="26" phylum="Tracheophyta" rank="species" species="gracile">
<emphasis id="B956FB3369362A69B1BCF99B10DEF99A" box="[189,471,1631,1657]" italics="true" pageId="25" pageNumber="26">Sphaerocionium gracile</emphasis>
(Bory) C.Presl
</taxonomicName>
,
<emphasis id="B956FB3369362A69B399F99B15D0F99A" box="[664,1241,1631,1657]" italics="true" pageId="25" pageNumber="26">
<taxonomicName id="4C225CA269362A69B399F99B1274F99A" ID-CoL="B9W" authorityName="Mart. (von Martius" authorityYear="1835" box="[664,893,1631,1657]" class="Polypodiopsida" family="Hymenophyllaceae" kingdom="Plantae" order="Hymenophyllales" pageId="25" pageNumber="26" phylum="Tracheophyta" rank="family">Hymenophyllaceae</taxonomicName>
. Eine botanische Abhandlung
</emphasis>
: 35 (1843).
</paragraph>
<paragraph id="8B9D272169362A69B1BCF94715D2F97E" blockId="25.[189,1399,1455,1693]" box="[189,1243,1666,1693]" pageId="25" pageNumber="26">
<taxonomicName id="4C225CA269362A69B1BCF9471228F97E" authority="(Desv.) Copel., The Philippine" authorityName="(Desv.) Copel., The Philippine" box="[189,801,1666,1693]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Mecodium" higherTaxonomySource="CoL" kingdom="Plantae" order="Hymenophyllales" pageId="25" pageNumber="26" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369362A69B1BCF94710BDF97E" box="[189,436,1667,1693]" italics="true" pageId="25" pageNumber="26">Mecodium inaequale</emphasis>
(Desv.) Copel.,
<emphasis id="B956FB3369362A69B375F9471228F97E" box="[628,801,1667,1693]" italics="true" pageId="25" pageNumber="26">The Philippine</emphasis>
</taxonomicName>
<emphasis id="B956FB3369362A69B228F947150AF97E" box="[809,1027,1667,1693]" italics="true" pageId="25" pageNumber="26">Journal of Science</emphasis>
67 (1): 96 (1938).
</paragraph>
</subSubSection>
<subSubSection id="C33874AA69362A69B1BCF97813D2F83B" pageId="25" pageNumber="26" type="description">
<paragraph id="8B9D272169362A69B1BCF978109FF935" blockId="25.[189,406,1724,1750]" box="[189,406,1724,1750]" pageId="25" pageNumber="26">
<heading id="D0D5904D69362A69B1BCF978109FF935" bold="true" box="[189,406,1724,1750]" fontSize="11" level="4" pageId="25" pageNumber="26" reason="2">
<emphasis id="B956FB3369362A69B1BCF978109FF935" bold="true" box="[189,406,1724,1750]" pageId="25" pageNumber="26">Short description</emphasis>
</heading>
</paragraph>
<paragraph id="8B9D272169362A69B1BCF92F13D2F83B" blockId="25.[189,1399,1771,2009]" pageId="25" pageNumber="26">Epiphytic; long-creeping filiform rhizomes, bearing sparsely distributed roots and long reddish brown trichomes, and widely separated pending fronds; fronds stipitate, with stipes fully winged or winged only in their upper part and the wing usually thin (up to 2–3 cells wide), with rachises fully winged, up to 30(–40) cm long, glabrous, quite variable in shape, triangular to (narrowly) lanceolate, never widely ovate, bipinnate-pinnatifid to tripinnate-pinnatifid, with lamina apices highly acute to attenuate, never obtuse or rounded; pinnae (especially the apical-most ones) usually not overlapping; numerous sori, paratactic, bilabiate without a developed base.</paragraph>
</subSubSection>
<subSubSection id="C33874AA69352A6AB1BCFECF10FCFE20" pageId="26" pageNumber="27" type="distribution">
<paragraph id="8B9D272169352A6AB1BCFECF10A4FEC6" blockId="26.[189,429,267,293]" box="[189,429,267,293]" pageId="26" pageNumber="27">
<heading id="D0D5904D69352A6AB1BCFECF10A4FEC6" bold="true" box="[189,429,267,293]" fontSize="11" level="4" pageId="26" pageNumber="27" reason="2">
<emphasis id="B956FB3369352A6AB1BCFECF10A4FEC6" bold="true" box="[189,429,267,293]" pageId="26" pageNumber="27">Global distribution</emphasis>
</heading>
</paragraph>
<paragraph id="8B9D272169352A6AB1BCFEFE154FFEB7" blockId="26.[189,1094,313,340]" box="[189,1094,313,340]" pageId="26" pageNumber="27">
Western Indian Ocean, Tanzania (where it could be confused with
<taxonomicName id="4C225CA269352A6AB2C9FEFE153CFEB0" box="[968,1077,313,339]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="kuhnii">
<emphasis id="B956FB3369352A6AB2C9FEFE153CFEB0" box="[968,1077,313,339]" italics="true" pageId="26" pageNumber="27">H. kuhnii</emphasis>
</taxonomicName>
).
</paragraph>
<paragraph id="8B9D272169352A6AB1BCFEBF10E6FE76" blockId="26.[189,495,379,405]" box="[189,495,379,405]" pageId="26" pageNumber="27">
<heading id="D0D5904D69352A6AB1BCFEBF10E6FE76" bold="true" box="[189,495,379,405]" fontSize="11" level="4" pageId="26" pageNumber="27" reason="2">
<emphasis id="B956FB3369352A6AB1BCFEBF10E6FE76" bold="true" box="[189,495,379,405]" pageId="26" pageNumber="27">Distribution in Comoros</emphasis>
</heading>
</paragraph>
<paragraph id="8B9D272169352A6AB1BCFE6D10FCFE20" blockId="26.[189,501,425,451]" box="[189,501,425,451]" pageId="26" pageNumber="27">Anjouan, Grande Comore.</paragraph>
</subSubSection>
<subSubSection id="C33874AA69352A6AB1BCFE2F1538FD7D" pageId="26" pageNumber="27" type="materials_examined">
<paragraph id="8B9D272169352A6AB1BCFE2F1340FDE6" blockId="26.[189,1399,491,670]" box="[189,585,491,517]" pageId="26" pageNumber="27">
<heading id="D0D5904D69352A6AB1BCFE2F1340FDE6" bold="true" box="[189,585,491,517]" fontSize="11" level="4" pageId="26" pageNumber="27" reason="6">
<emphasis id="B956FB3369352A6AB1BCFE2F1340FDE6" bold="true" box="[189,585,491,517]" pageId="26" pageNumber="27">Additional specimens examined</emphasis>
</heading>
</paragraph>
<paragraph id="8B9D272169352A6AB1BCFDDD1538FD7D" blockId="26.[189,1399,491,670]" pageId="26" pageNumber="27">
COMOROS: ANJOUAN, s. loc., 1875,
<emphasis id="B956FB3369352A6AB36BFDDD1266FDD7" box="[618,879,537,564]" italics="true" pageId="26" pageNumber="27">J.M.Hildebrandt 1849</emphasis>
(P00139613); s. loc., 1886,
<emphasis id="B956FB3369352A6AB5B6FDDD147EFDD7" box="[1207,1399,537,564]" italics="true" pageId="26" pageNumber="27">L.Humblot 1541</emphasis>
(P00139610, P01471284, P01471285, P01471286, P01471287); s. loc., Jul. 1940,
<emphasis id="B956FB3369352A6AB5B0FDF9147FFDB5" box="[1201,1398,572,598]" italics="true" pageId="26" pageNumber="27">R.Decary 16426</emphasis>
(P00139608); Sommet du Tringi, 12 Nov. 2009,
<emphasis id="B956FB3369352A6AB202FDA412F3FD99" box="[771,1018,608,634]" italics="true" pageId="26" pageNumber="27">M.Pignal et al. 3724</emphasis>
(P02439798). GRANDE COMORE, s. loc., 1886,
<emphasis id="B956FB3369352A6AB05BFD471312FD7E" box="[346,539,643,669]" italics="true" pageId="26" pageNumber="27">L.Humblot 1562</emphasis>
(P00139611),
<emphasis id="B956FB3369352A6AB3C8FD471280FD7E" box="[713,905,643,669]" italics="true" pageId="26" pageNumber="27">L.Humblot 1607</emphasis>
(P00139612).
</paragraph>
</subSubSection>
<subSubSection id="C33874AA69352A6AB1BCFD011408FAFD" pageId="26" pageNumber="27" type="discussion">
<paragraph id="8B9D272169352A6AB1BCFD0111F1FD3C" blockId="26.[189,248,709,735]" box="[189,248,709,735]" pageId="26" pageNumber="27">
<heading id="D0D5904D69352A6AB1BCFD0111F1FD3C" bold="true" box="[189,248,709,735]" fontSize="11" level="4" pageId="26" pageNumber="27" reason="2">
<emphasis id="B956FB3369352A6AB1BCFD0111F1FD3C" bold="true" box="[189,248,709,735]" pageId="26" pageNumber="27">Note</emphasis>
</heading>
</paragraph>
<paragraph id="8B9D272169352A6AB1BCFD371408FAFD" blockId="26.[189,1399,755,1310]" pageId="26" pageNumber="27">
<taxonomicName id="4C225CA269352A6AB1BCFD3710F0FCEE" box="[189,505,755,781]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369352A6AB1BCFD3710F0FCEE" box="[189,505,755,781]" italics="true" pageId="26" pageNumber="27">Hymenophyllum inaequale</emphasis>
</taxonomicName>
displays almost the same lamina division and shape variability as
<taxonomicName id="4C225CA269352A6AB408FD30147FFCEE" box="[1289,1398,755,781]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="kuhnii">
<emphasis id="B956FB3369352A6AB408FD30147FFCEE" box="[1289,1398,755,781]" italics="true" pageId="26" pageNumber="27">H. kuhnii</emphasis>
</taxonomicName>
(
<figureCitation id="13193BA469352A6AB1C7FCD2102DFCD2" box="[198,292,790,817]" captionStart="Fig. 5" captionStartId="24.[189,232,1783,1809]" captionTargetBox="[196,1392,265,1747]" captionTargetId="figure@24.[196,1392,265,1747]" captionTargetPageId="24" captionText="Fig. 5. Western Indian Ocean Hymenophyllum subg. Mecodium, illustrating morphological resemblance of taxa which are difficult to distinguish (see text). A. Hymenophyllum kuhnii C. Chr. from Comoros, firstly identified as H. polyanthos (Sw.) Sw. (F. Rakotondrainibe et al. 6864, P 00312328). B. Hymenophyllum capense Schrad. from Madagascar, initially identified as H. fumarioides Bory ex Willd. (F. Rakotondrainibe et al. 6121, P 00212664). C. Syntype of Hymenophyllum kuhnii C. Chr. from Tanzania (B 200092782). D. Hymenophyllum inaequale (Poir.) Desv., representative specimen from La Réunion (L. Bauret 190, P)." httpUri="https://zenodo.org/record/896413/files/figure.png" pageId="26" pageNumber="27">Fig. 5D</figureCitation>
; see the note concerning the latter species). However, phylogenetic molecular results indicate that
<taxonomicName id="4C225CA269352A6AB1F2FCFE1084FCB0" box="[243,397,825,851]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369352A6AB1F2FCFE1084FCB0" box="[243,397,825,851]" italics="true" pageId="26" pageNumber="27">H. inaequale</emphasis>
</taxonomicName>
is distinct from Tanzanian
<taxonomicName id="4C225CA269352A6AB3D8FCFE1241FCB0" box="[729,840,825,851]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="kuhnii">
<emphasis id="B956FB3369352A6AB3D8FCFE1241FCB0" box="[729,840,825,851]" italics="true" pageId="26" pageNumber="27">H. kuhnii</emphasis>
</taxonomicName>
and paleotropical
<emphasis id="B956FB3369352A6AB52BFCFE15D3FCB0" box="[1066,1242,825,851]" italics="true" pageId="26" pageNumber="27">
H. ‘
<taxonomicName id="4C225CA269352A6AB555FCFD15D3FCB0" box="[1108,1242,825,851]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="polyanthos">polyanthos</taxonomicName>
</emphasis>
’ (
<bibRefCitation id="EFB35AD069352A6AB5F5FCFD104BFC94" author="Dubuisson J. - Y. &amp; Hennequin S. &amp; Rakotondrainibe F. &amp; Schneider H." journalOrPublisher="Botanical Journal of the Linnean Society" pageId="26" pageNumber="27" pagination="41 - 63" part="142" publicationUrl="10.1046/j.1095-8339.2003.00165.x" refString="Dubuisson J. - Y., Hennequin S., Rakotondrainibe F. &amp; Schneider H. 2003. Ecological diversity and adaptive tendencies in the tropical fern Trichomanes L. (Hymenophyllaceae) with special reference to climbing and epiphytic habits. Botanical Journal of the Linnean Society 142: 41 - 63. https: // doi. org / 10.1046 / j. 1095 - 8339.2003.00165. x" title="Ecological diversity and adaptive tendencies in the tropical fern Trichomanes L. (Hymenophyllaceae) with special reference to climbing and epiphytic habits" type="journal article" year="2003">
Hennequin
<emphasis id="B956FB3369352A6AB1BCFC9911F2FC95" box="[189,251,860,886]" italics="true" pageId="26" pageNumber="27">et al.</emphasis>
2003
</bibRefCitation>
,
<bibRefCitation id="EFB35AD069352A6AB053FC99109BFC94" author="Hennequin S. &amp; Ebihara A. &amp; Dubuisson J. - Y. &amp; Schneider H." box="[338,402,861,887]" journalOrPublisher="Molecular Phylogenetics and Evolution" pageId="26" pageNumber="27" pagination="47 - 59" part="55" publicationUrl="http://dx.doi.org/10.1016/j.ympev.2010.01.001" refString="Hennequin S., Ebihara A., Dubuisson J. - Y. &amp; Schneider H. 2010. Chromosome number evolution in Hymenophyllum (Hymenophyllaceae), with special reference to the subgenus Hymenophyllum. Molecular Phylogenetics and Evolution 55: 47 - 59. http: // dx. doi. org / 10.1016 / j. ympev. 2010.01.001" title="Chromosome number evolution in Hymenophyllum (Hymenophyllaceae), with special reference to the subgenus Hymenophyllum" type="journal article" year="2010">2010</bibRefCitation>
). Typical
<taxonomicName id="4C225CA269352A6AB30BFC9913ACFC95" box="[522,677,860,886]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369352A6AB30BFC9913ACFC95" box="[522,677,860,886]" italics="true" pageId="26" pageNumber="27">H. inaequale</emphasis>
</taxonomicName>
specimens display lanceolate to narrowly lanceolate fronds with highly acute to attenuate apices (never obtuse or rounded), and pinnae or segments (especially the most apical ones) usually do not overlap. By contrast, many
<taxonomicName id="4C225CA269352A6AB2D7FC60154EFC5E" box="[982,1095,931,957]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="kuhnii">
<emphasis id="B956FB3369352A6AB2D7FC60154EFC5E" box="[982,1095,931,957]" italics="true" pageId="26" pageNumber="27">H. kuhnii</emphasis>
</taxonomicName>
specimens display ovate to widely ovate fronds with obtuse to rounded apices and mostly overlapping pinnae or segments, all these features supporting the distinctiveness from
<taxonomicName id="4C225CA269352A6AB214FC2E12A7FBE0" box="[789,942,1001,1027]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369352A6AB214FC2E12A7FBE0" box="[789,942,1001,1027]" italics="true" pageId="26" pageNumber="27">H. inaequale</emphasis>
</taxonomicName>
. However, many
<taxonomicName id="4C225CA269352A6AB585FC2E15FAFBE0" box="[1156,1267,1001,1027]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="kuhnii">
<emphasis id="B956FB3369352A6AB585FC2E15FAFBE0" box="[1156,1267,1001,1027]" italics="true" pageId="26" pageNumber="27">H. kuhnii</emphasis>
</taxonomicName>
specimens can also exhibit lanceolate to oblong fronds with attenuate apices and pinnae which do not always clearly overlap. Such equivocal or intermediate forms hinder a clear distinction between both species. Nevertheless, stipes of
<taxonomicName id="4C225CA269352A6AB0D9FB901341FB8E" box="[472,584,1107,1133]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="kuhnii">
<emphasis id="B956FB3369352A6AB0D9FB901341FB8E" box="[472,584,1107,1133]" italics="true" pageId="26" pageNumber="27">H. kuhnii</emphasis>
</taxonomicName>
are always fully winged with usually a wing of more than 3 cells wide (and observation of such wing usually requires a binocular). In typical
<taxonomicName id="4C225CA269352A6AB552FBB315E4FB73" box="[1107,1261,1142,1168]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369352A6AB552FBB315E4FB73" box="[1107,1261,1142,1168]" italics="true" pageId="26" pageNumber="27">H. inaequale</emphasis>
</taxonomicName>
, such wing is also observed, all along the stipe or only in its upper part, and it remains thin (up to 2–3 cells wide). Such subtle differences could allow distinguishing specimens exhibiting similar gross frond shape. But despite such subtle features, the morphological distinction between
<taxonomicName id="4C225CA269352A6AB2E0FB251573FB19" box="[993,1146,1248,1274]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="inaequale">
<emphasis id="B956FB3369352A6AB2E0FB251573FB19" box="[993,1146,1248,1274]" italics="true" pageId="26" pageNumber="27">H. inaequale</emphasis>
</taxonomicName>
and
<taxonomicName id="4C225CA269352A6AB5B4FB25142AFB19" box="[1205,1315,1248,1274]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="kuhnii">
<emphasis id="B956FB3369352A6AB5B4FB25142AFB19" box="[1205,1315,1248,1274]" italics="true" pageId="26" pageNumber="27">H. kuhnii</emphasis>
</taxonomicName>
and/or all other non-neotropical
<emphasis id="B956FB3369352A6AB0E7FAC0130AFAFE" box="[486,515,1284,1309]" italics="true" pageId="26" pageNumber="27">H.</emphasis>
‘
<taxonomicName id="4C225CA269352A6AB315FAC7139CFAFE" box="[532,661,1283,1309]" class="Polypodiopsida" family="Hymenophyllaceae" genus="Hymenophyllum" kingdom="Plantae" order="Hymenophyllales" pageId="26" pageNumber="27" phylum="Tracheophyta" rank="species" species="polyanthos">
<emphasis id="B956FB3369352A6AB315FAC7139CFAFE" box="[532,661,1283,1309]" italics="true" pageId="26" pageNumber="27">polyanthos</emphasis>
</taxonomicName>
’ remains difficult, especially in the wild (see
<figureCitation id="13193BA469352A6AB5AAFAC715FBFAFD" box="[1195,1266,1283,1310]" captionStart="Fig. 5" captionStartId="24.[189,232,1783,1809]" captionTargetBox="[196,1392,265,1747]" captionTargetId="figure@24.[196,1392,265,1747]" captionTargetPageId="24" captionText="Fig. 5. Western Indian Ocean Hymenophyllum subg. Mecodium, illustrating morphological resemblance of taxa which are difficult to distinguish (see text). A. Hymenophyllum kuhnii C. Chr. from Comoros, firstly identified as H. polyanthos (Sw.) Sw. (F. Rakotondrainibe et al. 6864, P 00312328). B. Hymenophyllum capense Schrad. from Madagascar, initially identified as H. fumarioides Bory ex Willd. (F. Rakotondrainibe et al. 6121, P 00212664). C. Syntype of Hymenophyllum kuhnii C. Chr. from Tanzania (B 200092782). D. Hymenophyllum inaequale (Poir.) Desv., representative specimen from La Réunion (L. Bauret 190, P)." httpUri="https://zenodo.org/record/896413/files/figure.png" pageId="26" pageNumber="27">Fig. 5</figureCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>
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