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<document id="16E7D1AD8563D86BAB6AB676AEFD994B" ID-DOI="10.17348/jbrit.v15.i2.1206" ID-Zenodo-Dep="14111022" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_requiresApprovalFor="plazi" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1634280027544" checkinUser="donat" docAuthor="Fawcett, Susan &amp; Smith, Alan R." docDate="2021" docId="03B787F6FFAB9B08620F7FC3FB6FFB8C" docLanguage="en" docName="2021_ThelypteridaceaeFerns_OACopy3.pdf.imf" docOrigin="Fort Worth, Texas, USA: BRIT Press" docTitle="Mesophlebion" docType="treatment" docVersion="4" lastPageNumber="57" masterDocId="FF8EFF8EFFE99B4B602B7D49FFA7FFBB" masterDocTitle="A Generic Classification of the Thelypteridaceae" pageNumber="56" updateTime="1731444927364" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-NC-SA-4.0">
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<mods:title id="B26E677D588A14FFEAEDD8E6A7925879">A Generic Classification of the Thelypteridaceae</mods:title>
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<mods:namePart id="39EA2AC8977AB9515AD0F7B0AA2270D5">Fawcett, Susan</mods:namePart>
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<mods:namePart id="64441907814084CF0DE376D48191429C">Smith, Alan R.</mods:namePart>
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<mods:dateIssued id="E5A9FE32EF82CC01D61893EA656E822B">2021</mods:dateIssued>
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<treatment id="03B787F6FFAB9B08620F7FC3FB6FFB8C" ID-DOI="http://doi.org/10.5281/zenodo.14076533" ID-Zenodo-Dep="14076533" LSID="urn:lsid:plazi:treatment:03B787F6FFAB9B08620F7FC3FB6FFB8C" httpUri="http://treatment.plazi.org/id/03B787F6FFAB9B08620F7FC3FB6FFB8C" lastPageId="67" lastPageNumber="57" pageId="66" pageNumber="56">
<subSubSection id="C304656BFFAB9B09620F7FC3FCA1FD1F" box="[548,774,650,676]" pageId="66" pageNumber="56" type="nomenclature">
<paragraph id="8BA136E0FFAB9B09620F7FC3FCA1FD1F" blockId="66.[97,1225,650,737]" box="[548,774,650,676]" pageId="66" pageNumber="56">
<heading id="D0E9818CFFAB9B09620F7FC3FCA1FD1F" allCaps="true" bold="true" box="[548,774,650,676]" centered="true" fontSize="11" level="2" pageId="66" pageNumber="56" reason="0">
<taxonomicName id="4C1E4D63FFAB9B09620F7FC3FCA1FD1F" ID-CoL="5PVX" baseAuthorityName="Holttum" baseAuthorityYear="1971" box="[548,774,650,676]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAB9B09620F7FC3FCA1FD1F" bold="true" box="[548,774,650,676]" pageId="66" pageNumber="56">MESOPHLEBION</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAB9B09604A7FFBFB17FD7C" box="[97,1200,690,711]" pageId="66" pageNumber="56" type="reference_group">
<paragraph id="8BA136E0FFAB9B09604A7FFBFB17FD7C" blockId="66.[97,1225,650,737]" box="[97,1200,690,711]" pageId="66" pageNumber="56">
<treatmentCitation id="0ABF10F1FFAB9B09604A7FFBFDACFD7C" author="Mesophlebion Holttum" box="[97,523,690,711]" journal="Blumea" page="29" pageId="66" pageNumber="56" score="3.24319811522761" volume="19" year="1971">
<taxonomicName id="4C1E4D63FFAB9B09604A7FFBFE3FFD7C" ID-CoL="5PVX" authority="Holttum, Blumea" authorityName="Holttum, Blumea" box="[97,408,690,711]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAB9B09604A7FFBFF48FD7C" bold="true" box="[97,239,690,711]" pageId="66" pageNumber="56">Mesophlebion</emphasis>
Holttum, Blumea
</taxonomicName>
19:29. 1971
</treatmentCitation>
, a renaming of
<emphasis id="B96AEAF2FFAB9B0962B67FFBFCAAFD7C" box="[669,781,690,711]" italics="true" pageId="66" pageNumber="56">Mesoneuron</emphasis>
<bibRefCitation id="EF8F4B11FFAB9B0963397FFBFC35FD7C" author="Ching" box="[786,914,690,711]" firstAuthor="Ching" journalOrPublisher="Acta Phytotax. Sin." pageId="66" pageNumber="56" pagination="289 - 335" part="8" refId="ref107523" refString="CHING, R. C. 1963. A reclassification of the family Thelypteridaceae from the mainland of Asia. Acta Phytotax. Sin. 8: 289 - 335." title="A reclassification of the family Thelypteridaceae from the mainland of Asia" type="journal article" year="1963">Ching (1963)</bibRefCitation>
, non
<emphasis id="B96AEAF2FFAB9B0963EE7FFBFB92FD7C" box="[965,1077,690,711]" italics="true" pageId="66" pageNumber="56">Mezonevron</emphasis>
Desf. (1818).
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAB9B0964847FFBFD5FFD5A" pageId="66" pageNumber="56" type="type_taxon">
<paragraph id="8BA136E0FFAB9B0964847FFBFD5FFD5A" blockId="66.[97,1225,650,737]" pageId="66" pageNumber="56">
<typeStatus id="54A58842FFAB9B09608A7F99FF67FD5B" box="[161,192,720,736]" pageId="66" pageNumber="56">
<collectionCode id="ED0FAE25FFAB9B09608A7F99FF67FD5B" box="[161,192,720,736]" pageId="66" pageNumber="56">TYPE</collectionCode>
</typeStatus>
:
<taxonomicName id="4C1E4D63FFAB9B0960E27F99FDACFD5A" ID-CoL="424YB" authority="(Blume) Holttum" authorityName="Holttum" baseAuthorityName="Blume" box="[201,523,720,737]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="crassifolium">
<emphasis id="B96AEAF2FFAB9B0960E27F99FE21FD5A" box="[201,390,720,737]" italics="true" pageId="66" pageNumber="56">Mesophlebion crassifolium</emphasis>
(Blume) Holttum
</taxonomicName>
[=
<taxonomicName id="4C1E4D63FFAB9B0962347F99FD53FD5A" ID-CoL="HFRH" authority="Blume" authorityName="Blume" box="[543,756,720,737]" class="Polypodiopsida" family="Thelypteridaceae" genus="Aspidium" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="crassifolium">
<emphasis id="B96AEAF2FFAB9B0962347F99FD19FD5A" box="[543,702,720,737]" italics="true" pageId="66" pageNumber="56">Aspidium crassifolium</emphasis>
Blume
</taxonomicName>
]
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAB9B0960AA7FBCFDAFFCBC" box="[129,520,757,775]" pageId="66" pageNumber="56" type="reference_group">
<paragraph id="8BA136E0FFAB9B0960AA7FBCFDAFFCBC" blockId="66.[129,520,757,775]" box="[129,520,757,775]" pageId="66" pageNumber="56">
For additional synonymy, see
<bibRefCitation id="EF8F4B11FFAB9B09614A7FBFFE76FCBC" author="Holttum" box="[353,465,758,775]" firstAuthor="Holttum" journalOrPublisher="Blumea" pageId="66" pageNumber="56" pagination="17 - 52" part="19" refId="ref109463" refString="HOLTTUM, R. E. 1971. Studies in the family Thelypteridaceae III. A new system of genera in the Old World. Blumea 19: 17 - 52." title="Studies in the family Thelypteridaceae III. A new system of genera in the Old World" type="journal article" year="1971">Holttum (1971</bibRefCitation>
,
<bibRefCitation id="EF8F4B11FFAB9B0961FC7FBFFE59FCBC" author="Holttum" box="[471,510,758,775]" firstAuthor="Holttum" journalOrPublisher="Flora Malesiana" pageId="66" pageNumber="56" pagination="334 - 560" part="1" refId="ref109955" refString="HOLTTUM, R. E. 1982. Thelypteridaceae. Flora Malesiana, Ser. II, 1 (5): 334 - 560." title="Thelypteridaceae" type="journal article" year="1982">1982</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAB9B09604A7E55FEA8FCE9" pageId="66" pageNumber="56" type="etymology">
<paragraph id="8BA136E0FFAB9B09604A7E55FEA8FCE9" blockId="66.[97,1226,796,1810]" pageId="66" pageNumber="56">
<emphasis id="B96AEAF2FFAB9B09604A7E55FF45FC8A" box="[97,226,796,817]" italics="true" pageId="66" pageNumber="56">Etymology.—</emphasis>
Gr.
<emphasis id="B96AEAF2FFAB9B0961227E54FE90FC89" box="[265,311,797,818]" italics="true" pageId="66" pageNumber="56">meso</emphasis>
, middle +
<emphasis id="B96AEAF2FFAB9B09618F7E55FE53FC8A" box="[420,500,796,817]" italics="true" pageId="66" pageNumber="56">phlebion</emphasis>
, vein, in reference to basal basiscopic veins arising from costae between costules (
<figureCitation id="13252A65FFAB9B0960907E74FEA6FCE9" box="[187,257,829,850]" captionStart="FIG" captionStartId="28.[97,105,1748,1768]" captionTargetBox="[93,1223,156,1702]" captionTargetId="figure-8@28.[92,1230,156,1705]" captionTargetPageId="28" captionText="FIG. 9.Steiropteris deltoidea,Fawcett 464 (VT) A. habit.B. pinna lobes,adaxial view.C.Mesophlebion sp., Karger 1796 (VT),pinna lobes,abaxial view." figureDoi="http://doi.org/10.5281/zenodo.14111101" httpUri="https://zenodo.org/record/14111101/files/figure.png" pageId="66" pageNumber="56">
<emphasis id="B96AEAF2FFAB9B0960907E74FEA6FCE9" bold="true" box="[187,257,829,850]" pageId="66" pageNumber="56">Fig. 9C</emphasis>
</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAB9B0960BA7E14FEF6F9A9" pageId="66" pageNumber="56" type="description">
<paragraph id="8BA136E0FFAB9B0960BA7E14FEF6F9A9" blockId="66.[97,1226,796,1810]" pageId="66" pageNumber="56">
Plants terrestrial, mostly in wet forests, medium-sized;
<emphasis id="B96AEAF2FFAB9B09629B7E14FCA8FCC9" bold="true" box="[688,783,861,882]" pageId="66" pageNumber="56">rhizomes</emphasis>
short- to long-creeping, at apices with rather rigid (but never spine-like) dark scales bearing short acicular hairs;
<emphasis id="B96AEAF2FFAB9B0962DC7E34FC9DFC29" bold="true" box="[759,826,893,914]" pageId="66" pageNumber="56">fronds</emphasis>
mostly
<quantity id="4CE69B05FFAB9B0963AC7E34FC54FC2A" box="[903,1011,892,914]" metricMagnitude="-1" metricUnit="m" metricValue="9.25" metricValueMax="15.0" metricValueMin="3.5" pageId="66" pageNumber="56" unit="cm" value="92.5" valueMax="150.0" valueMin="35.0">35150 cm</quantity>
tall, monomorphic to dimorphic (
<taxonomicName id="4C1E4D63FFAB9B0960F87ED4FEFBFC0A" box="[211,348,924,946]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="oligodictyon">
<emphasis id="B96AEAF2FFAB9B0960F87ED4FEFBFC0A" box="[211,348,924,946]" italics="true" pageId="66" pageNumber="56">M.oligodictyon</emphasis>
</taxonomicName>
);
<emphasis id="B96AEAF2FFAB9B0961457ED4FE0EFC09" bold="true" box="[366,425,925,946]" pageId="66" pageNumber="56">stipes</emphasis>
green when living, stramineous or reddish-flushed with age, scaly primarily at bases (except
<taxonomicName id="4C1E4D63FFAB9B0960807EF4FE80FC6A" box="[171,295,956,978]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="echinatum">
<emphasis id="B96AEAF2FFAB9B0960807EF4FE80FC6A" box="[171,295,956,978]" italics="true" pageId="66" pageNumber="56">M.echinatum</emphasis>
</taxonomicName>
and a few other spp.), scales tan to brown, mostly
<quantity id="4CE69B05FFAB9B0962D67EF4FCF1FC6A" box="[765,854,956,978]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" metricValueMax="10.0" metricValueMin="2.0" pageId="66" pageNumber="56" unit="mm" value="6.0" valueMax="10.0" valueMin="2.0">210 mm</quantity>
long, lanceolate, bearing short acicular hairs on margins and on surfaces;
<emphasis id="B96AEAF2FFAB9B0961827E95FE4CFC4A" bold="true" box="[425,491,988,1009]" pageId="66" pageNumber="56">blades</emphasis>
usually pinnate-pinnatifid with proximal pinnae not reduced, apices confluent and gradually tapering to subconform, or rarely, blades simple (
<taxonomicName id="4C1E4D63FFAB9B0962DB7EB4FCDBFBAA" box="[752,892,1020,1042]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="oligodictyon">
<emphasis id="B96AEAF2FFAB9B0962DB7EB4FCDBFBAA" box="[752,892,1020,1042]" italics="true" pageId="66" pageNumber="56">M. oligodictyon</emphasis>
</taxonomicName>
);
<emphasis id="B96AEAF2FFAB9B0963BB7EB4FC71FBA9" bold="true" box="[912,982,1021,1042]" pageId="66" pageNumber="56">pinnae</emphasis>
opposite or subopposite, often becoming alternate distally, shallowly to usually deeply lobed (to within
<quantity id="4CE69B05FFAB9B09636F7954FCDBFB8A" box="[836,892,1052,1074]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="66" pageNumber="56" unit="mm" value="2.0">2 mm</quantity>
of costae); proximal pair narrowed at their bases, sessile to long-petiolulate (to
<quantity id="4CE69B05FFAB9B09622E7974FD90FBE9" box="[517,567,1085,1106]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="66" pageNumber="56" unit="cm" value="2.0">2 cm</quantity>
); rachises hairy to sometimes glabrescent, hairs acicular, sometimes with scales similar to those of stipes proximally, but scales shorter, blades lacking vegetative buds;
<emphasis id="B96AEAF2FFAB9B09640E7914FBFDFBC9" bold="true" box="[1061,1114,1117,1138]" pageId="66" pageNumber="56">veins</emphasis>
free, rarely weakly united (
<taxonomicName id="4C1E4D63FFAB9B0960DE7934FED8FB2A" box="[245,383,1148,1170]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="oligodictyon">
<emphasis id="B96AEAF2FFAB9B0960DE7934FED8FB2A" box="[245,383,1148,1170]" italics="true" pageId="66" pageNumber="56">M. oligodictyon</emphasis>
</taxonomicName>
), usually connivent at or just below the sinuses and touching sides of an often hairy ridge below sinus, simple in ultimate segments, ending at segment margins, basal basiscopic veins arising from costa midway between costules (
<figureCitation id="13252A65FFAB9B09613E79F4FEFBFB69" box="[277,348,1213,1234]" captionStart="FIG" captionStartId="28.[97,105,1748,1768]" captionTargetBox="[93,1223,156,1702]" captionTargetId="figure-8@28.[92,1230,156,1705]" captionTargetPageId="28" captionText="FIG. 9.Steiropteris deltoidea,Fawcett 464 (VT) A. habit.B. pinna lobes,adaxial view.C.Mesophlebion sp., Karger 1796 (VT),pinna lobes,abaxial view." figureDoi="http://doi.org/10.5281/zenodo.14111101" httpUri="https://zenodo.org/record/14111101/files/figure.png" pageId="66" pageNumber="56">
<emphasis id="B96AEAF2FFAB9B09613E79F4FEFBFB69" bold="true" box="[277,348,1213,1234]" pageId="66" pageNumber="56">Fig. 9C</emphasis>
</figureCitation>
), near base of costule, or from costules (in smaller spp., e.g.,
<taxonomicName id="4C1E4D63FFAB9B09639B79F4FB84FB6A" box="[944,1059,1212,1234]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="arenicola">
<emphasis id="B96AEAF2FFAB9B09639B79F4FB84FB6A" box="[944,1059,1212,1234]" italics="true" pageId="66" pageNumber="56">M. arenicola</emphasis>
</taxonomicName>
) of ultimate segments; costae adaxially prominent, grooved;
<emphasis id="B96AEAF2FFAB9B0962337995FD2DFB4A" bold="true" box="[536,650,1244,1265]" pageId="66" pageNumber="56">aerophores</emphasis>
sometimes swollen on living fronds, collapsing on drying, never peg-like;
<emphasis id="B96AEAF2FFAB9B0960DD79B4FE19FAA9" bold="true" box="[246,446,1277,1298]" pageId="66" pageNumber="56">indument abaxially</emphasis>
on axes (rachises, costae, costules, and sometimes veins) of acicular, unicellular hairs, laminar tissue between veins usually glabrous, lacking stipitate glands, sometimes with spherical or hemispherical glands, scales sometimes present abaxially along costae;
<emphasis id="B96AEAF2FFAB9B0962B37874FCF9FAE9" bold="true" box="[664,862,1341,1362]" pageId="66" pageNumber="56">indument adaxially</emphasis>
only along rachis and costae, of acicular hairs;
<emphasis id="B96AEAF2FFAB9B0960957815FEB2FACA" bold="true" box="[190,277,1372,1393]" pageId="66" pageNumber="56">pustules</emphasis>
absent;
<emphasis id="B96AEAF2FFAB9B09614C7814FE28FAC9" bold="true" box="[359,399,1373,1394]" pageId="66" pageNumber="56">sori</emphasis>
round to sometimes elongate along veins, medial, indusiate (except
<taxonomicName id="4C1E4D63FFAB9B0964057815FB1CFACA" box="[1070,1211,1372,1393]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="species" species="oligodictyon">
<emphasis id="B96AEAF2FFAB9B0964057815FB1CFACA" box="[1070,1211,1372,1393]" italics="true" pageId="66" pageNumber="56">M. oligodictyon</emphasis>
</taxonomicName>
), indusia round-reniform, thin, small to large, often caducous, glabrous or with short acicular setae;
<emphasis id="B96AEAF2FFAB9B09640F7834FB2DFA29" bold="true" box="[1060,1162,1405,1426]" pageId="66" pageNumber="56">sporangia</emphasis>
shortstalked, young ones often pale violet, glabrous or usually bearing a reddish or orangish stipitate spherical gland from the sporangial stalk, capsules lacking glands and hairs;
<emphasis id="B96AEAF2FFAB9B09627878F5FD32FA6A" bold="true" box="[595,661,1468,1489]" pageId="66" pageNumber="56">spores</emphasis>
dark brown, with long, continuous wings and a few crosswings, ridges, or minutely papillose;
<emphasis id="B96AEAF2FFAB9B0961907895FE61FA4A" box="[443,454,1500,1521]" italics="true" pageId="66" pageNumber="56">x</emphasis>
= 36 (3 species counted, both diploids and tetraploids); no intergeneric or infrageneric hybrids are known.
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAB9B0960BA7B55FC58F969" pageId="66" pageNumber="56" type="diagnosis">
<paragraph id="8BA136E0FFAB9B0960BA7B55FC58F969" blockId="66.[97,1226,796,1810]" pageId="66" pageNumber="56">
<emphasis id="B96AEAF2FFAB9B0960BA7B55FF4CF98A" box="[145,235,1564,1585]" italics="true" pageId="66" pageNumber="56">Diagnosis</emphasis>
.—The genus is generally relatively easy to recognize because of the deltate pinnate-pinnatifid blades that are widest at the base, dark green thick-herbaceous blades, creeping rhizomes, free veins connivent at or near sinuses, and presence of large, stipitate, reddish spherical glands on the sporangial stalks, a characteristic shared with its closest relatives,
<emphasis id="B96AEAF2FFAB9B0960917B35FE99F92A" box="[186,318,1660,1681]" italics="true" pageId="66" pageNumber="56">
<taxonomicName id="4C1E4D63FFAB9B0960917B35FEBAF92A" box="[186,285,1660,1681]" class="Polypodiopsida" family="Thelypteridaceae" genus="Cyclosorus" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus" sensu="stricto">Cyclosorus</taxonomicName>
<taxonomicNameLabel id="A2595789FFAB9B09610A7B35FE99F92A" box="[289,318,1660,1681]" pageId="66" pageNumber="56" sensu="stricto">s.s.</taxonomicNameLabel>
</emphasis>
and
<taxonomicName id="4C1E4D63FFAB9B0961427B35FE45F92A" box="[361,482,1660,1681]" class="Polypodiopsida" family="Thelypteridaceae" genus="Ampelopteris" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAB9B0961427B35FE45F92A" box="[361,482,1660,1681]" italics="true" pageId="66" pageNumber="56">Ampelopteris</emphasis>
</taxonomicName>
.
<taxonomicName id="4C1E4D63FFAB9B0961C07B35FDCFF92A" box="[491,616,1660,1681]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAB9B0961C07B35FDCFF92A" box="[491,616,1660,1681]" italics="true" pageId="66" pageNumber="56">Mesophlebion</emphasis>
</taxonomicName>
is easily distinguished from the latter by the more deeply incised pinnae, and the non-proliferous fronds. From
<taxonomicName id="4C1E4D63FFAB9B0962387BD5FDD2F90A" box="[531,629,1692,1713]" class="Polypodiopsida" family="Thelypteridaceae" genus="Cyclosorus" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAB9B0962387BD5FDD2F90A" box="[531,629,1692,1713]" italics="true" pageId="66" pageNumber="56">Cyclosorus</emphasis>
</taxonomicName>
,
<taxonomicName id="4C1E4D63FFAB9B0962AB7BD5FD5AF90A" box="[640,765,1692,1713]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAB9B0962AB7BD5FD5AF90A" box="[640,765,1692,1713]" italics="true" pageId="66" pageNumber="56">Mesophlebion</emphasis>
</taxonomicName>
is distinguished by the free veins, shorter-creeping rhizomes, and forest habitat (vs. fresh-water marshes and swamps, often in partial to full sun).
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAB9B0860BA7B95FE8EFE0C" lastPageId="67" lastPageNumber="57" pageId="66" pageNumber="56" type="biology_ecology">
<paragraph id="8BA136E0FFAB9B0860BA7B95FE8EFE0C" blockId="66.[97,1226,796,1810]" lastBlockId="67.[121,1255,162,1079]" lastPageId="67" lastPageNumber="57" pageId="66" pageNumber="56">
<emphasis id="B96AEAF2FFAB9B0960BA7B95FD86F94A" box="[145,545,1756,1777]" italics="true" pageId="66" pageNumber="56">
Biogeography and ecology.—
<taxonomicName id="4C1E4D63FFAB9B09618B7B95FD86F94A" box="[416,545,1756,1777]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="66" pageNumber="56" phylum="Tracheophyta" rank="genus">Mesophlebion</taxonomicName>
</emphasis>
comprises ca. 17 species, distributed from
<collectingCountry id="F3097670FFAB9B0963E67B95FB8BF94A" box="[973,1068,1756,1777]" name="Myanmar" pageId="66" pageNumber="56">Myanmar</collectingCountry>
and peninsular
<collectingCountry id="F3097670FFAB9B09604A7BB4FF1DF8A9" box="[97,186,1789,1810]" name="Thailand" pageId="66" pageNumber="56">Thailand</collectingCountry>
and
<collectingCountry id="F3097670FFAB9B0960C07BB4FE98F8A9" box="[235,319,1789,1810]" name="Vietnam" pageId="66" pageNumber="56">Vietnam</collectingCountry>
throughout
<collectingCountry id="F3097670FFAB9B0961977BB4FDADF8A9" box="[444,522,1789,1810]" name="Malaysia" pageId="66" pageNumber="56">Malesia</collectingCountry>
, except eastern Java and the Lesser Sunda Islands (
<bibRefCitation id="EF8F4B11FFAB9B09642E7BB4FB35F8A9" author="Holttum" box="[1029,1170,1789,1810]" firstAuthor="Holttum" journalOrPublisher="Flora Malesiana" pageId="66" pageNumber="56" pagination="334 - 560" part="1" refId="ref109955" refString="HOLTTUM, R. E. 1982. Thelypteridaceae. Flora Malesiana, Ser. II, 1 (5): 334 - 560." title="Thelypteridaceae" type="journal article" year="1982">Holttum 1982</bibRefCitation>
); it is absent from Melanesia and Polynesia, and represented in Australasia by three species in New
<collectingCountry id="F3097670FFAA9B0864227DEBFBF5FF0C" box="[1033,1106,162,183]" name="Guinea-Bissau" pageId="67" pageNumber="57">Guinea</collectingCountry>
. Nearly half of the species are rare in collections, and the greatest diversity is in Borneo, with 13 species. Species are generally found in low- to mid-elevation forests, or among rocks in riverbeds, from
<quantity id="4CE69B05FFAA9B0862DE7DABFCFDFF4C" box="[757,858,226,247]" metricMagnitude="2" metricUnit="m" metricValue="9.0" metricValueMax="18.0" metricValueMin="0.0" pageId="67" pageNumber="57" unit="m" value="900.0" valueMax="1800.0" valueMin="0.0">01800 m</quantity>
. Species seldom occur in open habitats, except for
<taxonomicName id="4C1E4D63FFAA9B0860F47C4BFEF4FEAD" box="[223,339,257,279]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="arenicola">
<emphasis id="B96AEAF2FFAA9B0860F47C4BFEF4FEAD" box="[223,339,257,279]" italics="true" pageId="67" pageNumber="57">M. arenicola</emphasis>
</taxonomicName>
and
<taxonomicName id="4C1E4D63FFAA9B0861A87C4BFE52FEAD" box="[387,501,257,279]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="teuscheri">
<emphasis id="B96AEAF2FFAA9B0861A87C4BFE52FEAD" box="[387,501,257,279]" italics="true" pageId="67" pageNumber="57">M. teuscheri</emphasis>
</taxonomicName>
, which grow on wet sandstone in exposed places (
<bibRefCitation id="EF8F4B11FFAA9B0863C87C4BFBC8FEAC" author="Holttum" box="[995,1135,258,279]" firstAuthor="Holttum" journalOrPublisher="Flora Malesiana" pageId="67" pageNumber="57" pagination="334 - 560" part="1" refId="ref109955" refString="HOLTTUM, R. E. 1982. Thelypteridaceae. Flora Malesiana, Ser. II, 1 (5): 334 - 560." title="Thelypteridaceae" type="journal article" year="1982">Holttum 1982</bibRefCitation>
); as a likely consequence of this nutrient-deficient habitat, these two species are smaller (&lt;
<quantity id="4CE69B05FFAA9B08635F7C6BFC15FE8C" box="[884,946,290,311]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="67" pageNumber="57" unit="cm" value="50.0">50 cm</quantity>
) than others in the genus. One other small species,
<taxonomicName id="4C1E4D63FFAA9B0861137C0BFE63FEED" box="[312,452,321,343]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="oligodictyon">
<emphasis id="B96AEAF2FFAA9B0861137C0BFE63FEED" box="[312,452,321,343]" italics="true" pageId="67" pageNumber="57">M. oligodictyon</emphasis>
</taxonomicName>
, differs from others in the genus in its dimorphic blades, lack of acicular hairs abaxially, and irregularly anastomosing veins, somewhat resembling species of the
<taxonomicName id="4C1E4D63FFAA9B0863777C28FBD6FECD" box="[860,1137,353,374]" class="Polypodiopsida" family="Thelypteridaceae" genus="Sphaerostephanos" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="beccarianus">
<emphasis id="B96AEAF2FFAA9B0863777C28FBD6FECD" box="[860,1137,353,374]" italics="true" pageId="67" pageNumber="57">Sphaerostephanos beccarianus</emphasis>
</taxonomicName>
group (
<figureCitation id="13252A65FFAA9B0864977C2BFF35FE2C" captionStart="FIG" captionStartId="27.[121,129,1750,1770]" captionTargetBox="[124,1252,168,1700]" captionTargetId="figure-8@27.[119,1252,168,1705]" captionTargetPageId="27" captionText="FIG.7.A.Pneumatopteris parksii,Fawcett 645 (UC),pinna lobes,adaxial view.B.Reholttumia magnifica,Fawcett 676 (VT),pinna lobes,abaxial view.C.Pelazoneuron patens,Fawcett 744 (VT), abaxial pinna-lobes.D. P.serra,Fawcett 1034 (VT), adaxial pinna lobes.E. Pakau pennigera, Given 11842 (VT),pinna lobes,abaxial view. F.Pakau pennigera, Stuart s.n.(VT),pinna." figureDoi="http://doi.org/10.5281/zenodo.14111097" httpUri="https://zenodo.org/record/14111097/files/figure.png" pageId="67" pageNumber="57">
<emphasis id="B96AEAF2FFAA9B0864977C2BFF35FE2C" bold="true" pageId="67" pageNumber="57">Fig. 7A</emphasis>
</figureCitation>
). Holttum treated it in
<taxonomicName id="4C1E4D63FFAA9B08615C7CC8FE52FE2D" box="[375,501,385,406]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B08615C7CC8FE52FE2D" box="[375,501,385,406]" italics="true" pageId="67" pageNumber="57">Mesophlebion</emphasis>
</taxonomicName>
based on the stipitate gland on sporangial stalk, and venation; its placement needs verification.
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAA9B0860827C8BFDA8FC2C" pageId="67" pageNumber="57" type="discussion">
<paragraph id="8BA136E0FFAA9B0860827C8BFC65FCAC" blockId="67.[121,1255,162,1079]" pageId="67" pageNumber="57">
<emphasis id="B96AEAF2FFAA9B0860827C8BFE51FE6D" box="[169,502,449,471]" italics="true" pageId="67" pageNumber="57">Taxonomic and phylogenetic studies</emphasis>
.—The genus
<emphasis id="B96AEAF2FFAA9B0862577C8BFD4BFE6C" box="[636,748,450,471]" italics="true" pageId="67" pageNumber="57">Mesoneuron</emphasis>
was published by
<bibRefCitation id="EF8F4B11FFAA9B0863887C8BFB83FE6C" author="Ching" box="[931,1060,450,471]" firstAuthor="Ching" journalOrPublisher="Acta Phytotax. Sin." pageId="67" pageNumber="57" pagination="289 - 335" part="8" refId="ref107523" refString="CHING, R. C. 1963. A reclassification of the family Thelypteridaceae from the mainland of Asia. Acta Phytotax. Sin. 8: 289 - 335." title="A reclassification of the family Thelypteridaceae from the mainland of Asia" type="journal article" year="1963">Ching (1963)</bibRefCitation>
in his treatment of mainland Asian
<taxonomicName id="4C1E4D63FFAA9B08613C7CABFE18FE4C" baseAuthorityName="Holttum" baseAuthorityYear="1976" box="[279,447,482,503]" class="Polypodiopsida" family="Thelypteridaceae" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="family">Thelypteridaceae</taxonomicName>
. Because of its similarity to
<emphasis id="B96AEAF2FFAA9B0862E27CABFC9EFE4C" box="[713,825,482,503]" italics="true" pageId="67" pageNumber="57">Mezonevron</emphasis>
Desv. (a synonym of
<emphasis id="B96AEAF2FFAA9B08642D7CA8FBD5FE4D" box="[1030,1138,481,502]" italics="true" pageId="67" pageNumber="57">Caesalpinia</emphasis>
, Fabaceae),
<bibRefCitation id="EF8F4B11FFAA9B0860527F4BFEABFDAC" author="Holttum" box="[121,268,514,535]" firstAuthor="Holttum" journalOrPublisher="Blumea" pageId="67" pageNumber="57" pagination="17 - 52" part="19" refId="ref109463" refString="HOLTTUM, R. E. 1971. Studies in the family Thelypteridaceae III. A new system of genera in the Old World. Blumea 19: 17 - 52." title="Studies in the family Thelypteridaceae III. A new system of genera in the Old World" type="journal article" year="1971">Holttum (1971)</bibRefCitation>
published the replacement name
<taxonomicName id="4C1E4D63FFAA9B08626D7F48FD64FDAD" box="[582,707,513,534]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B08626D7F48FD64FDAD" box="[582,707,513,534]" italics="true" pageId="67" pageNumber="57">Mesophlebion</emphasis>
</taxonomicName>
. Initially,
<bibRefCitation id="EF8F4B11FFAA9B08630B7F4BFC14FDAC" author="Holttum" box="[800,947,514,535]" firstAuthor="Holttum" journalOrPublisher="Blumea" pageId="67" pageNumber="57" pagination="17 - 52" part="19" refId="ref109463" refString="HOLTTUM, R. E. 1971. Studies in the family Thelypteridaceae III. A new system of genera in the Old World. Blumea 19: 17 - 52." title="Studies in the family Thelypteridaceae III. A new system of genera in the Old World" type="journal article" year="1971">Holttum (1971)</bibRefCitation>
included the genus
<taxonomicName id="4C1E4D63FFAA9B0864477F48FB46FDAD" box="[1132,1249,513,534]" class="Polypodiopsida" family="Thelypteridaceae" genus="Plesioneuron" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0864477F48FB46FDAD" box="[1132,1249,513,534]" italics="true" pageId="67" pageNumber="57">Plesioneuron</emphasis>
</taxonomicName>
as a subgenus of
<taxonomicName id="4C1E4D63FFAA9B0861327F68FE31FD8D" box="[281,406,545,566]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0861327F68FE31FD8D" box="[281,406,545,566]" italics="true" pageId="67" pageNumber="57">Mesophlebion</emphasis>
</taxonomicName>
, but later
<bibRefCitation id="EF8F4B11FFAA9B0861DD7F6BFD2BFD8C" author="Holttum" box="[502,652,546,567]" firstAuthor="Holttum" journalOrPublisher="Blumea" pageId="67" pageNumber="57" pagination="223 - 250" part="22" refId="ref109741" refString="HOLTTUM, R. E. 1975. Studies in the family Thelypteridaceae VIII. The genera Mesophlebion and Plesioneuron. Blumea 22: 223 - 250." title="Studies in the family Thelypteridaceae VIII. The genera Mesophlebion and Plesioneuron" type="journal article" year="1975">Holttum (1975)</bibRefCitation>
accorded
<taxonomicName id="4C1E4D63FFAA9B0862C77F68FCC6FD8D" box="[748,865,545,566]" class="Polypodiopsida" family="Thelypteridaceae" genus="Plesioneuron" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0862C77F68FCC6FD8D" box="[748,865,545,566]" italics="true" pageId="67" pageNumber="57">Plesioneuron</emphasis>
</taxonomicName>
generic rank. Prior to that,
<bibRefCitation id="EF8F4B11FFAA9B0864407F6BFF10FDEC" author="Christensen" firstAuthor="Christensen" journalOrPublisher="Gardens' Bull. Straits Settlem." pageId="67" pageNumber="57" pagination="375 - 407" part="4" refId="ref107808" refString="CHRISTENSEN, C. 1929. On some ferns from the Malay peninsula. Gardens' Bull. Straits Settlem. 4: 375 - 407." title="On some ferns from the Malay peninsula" type="journal article" year="1929">Christensen (1929)</bibRefCitation>
recognized species of
<taxonomicName id="4C1E4D63FFAA9B0861BE7F08FDB3FDED" box="[405,532,577,598]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0861BE7F08FDB3FDED" box="[405,532,577,598]" italics="true" pageId="67" pageNumber="57">Mesophlebion</emphasis>
</taxonomicName>
as a distinct group, in
<taxonomicName id="4C1E4D63FFAA9B0862DC7F0BFCFCFDEC" box="[759,859,578,599]" class="Polypodiopsida" family="Dryopteridaceae" genus="Dryopteris" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0862DC7F0BFCFCFDEC" box="[759,859,578,599]" italics="true" pageId="67" pageNumber="57">Dryopteris</emphasis>
</taxonomicName>
, and compared them to the neotropical group
<taxonomicName id="4C1E4D63FFAA9B0860927F2BFE61FDCC" box="[185,454,610,631]" class="Polypodiopsida" family="Dryopteridaceae" genus="Dryopteris" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="subGenus" subGenus="Steiropteris">
<emphasis id="B96AEAF2FFAA9B0860927F2BFEBAFDCC" box="[185,285,610,631]" italics="true" pageId="67" pageNumber="57">Dryopteris</emphasis>
subg.
<emphasis id="B96AEAF2FFAA9B0861777F2BFE61FDCC" box="[348,454,610,631]" italics="true" pageId="67" pageNumber="57">Steiropteris</emphasis>
</taxonomicName>
(herein recognized as
<taxonomicName id="4C1E4D63FFAA9B08628E7F2BFCAAFDCC" box="[677,781,610,631]" class="Polypodiopsida" family="Thelypteridaceae" genus="Steiropteris" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B08628E7F2BFCAAFDCC" box="[677,781,610,631]" italics="true" pageId="67" pageNumber="57">Steiropteris</emphasis>
</taxonomicName>
), which they superficially resemble in venation, blade architecture, and blade texture (
<figureCitation id="13252A65FFAA9B0861D87FCBFD8CFD2C" box="[499,555,642,663]" captionStart="FIG" captionStartId="28.[97,105,1748,1768]" captionTargetBox="[93,1223,156,1702]" captionTargetId="figure-8@28.[92,1230,156,1705]" captionTargetPageId="28" captionText="FIG. 9.Steiropteris deltoidea,Fawcett 464 (VT) A. habit.B. pinna lobes,adaxial view.C.Mesophlebion sp., Karger 1796 (VT),pinna lobes,abaxial view." figureDoi="http://doi.org/10.5281/zenodo.14111101" httpUri="https://zenodo.org/record/14111101/files/figure.png" pageId="67" pageNumber="57">
<emphasis id="B96AEAF2FFAA9B0861D87FCBFD8CFD2C" bold="true" box="[499,555,642,663]" pageId="67" pageNumber="57">Fig. 9</emphasis>
</figureCitation>
).
<bibRefCitation id="EF8F4B11FFAA9B08626B7FCBFD7EFD2C" author="Holttum" box="[576,729,642,663]" firstAuthor="Holttum" journalOrPublisher="Flora Malesiana" pageId="67" pageNumber="57" pagination="334 - 560" part="1" refId="ref109955" refString="HOLTTUM, R. E. 1982. Thelypteridaceae. Flora Malesiana, Ser. II, 1 (5): 334 - 560." title="Thelypteridaceae" type="journal article" year="1982">Holttum (1982)</bibRefCitation>
commented on the pale violet-purple color of young sporangia (and sometimes indusia) of some species, a character observed by us in this genus and also in
<taxonomicName id="4C1E4D63FFAA9B0864597FE8FB7CFD0D" box="[1138,1243,673,694]" class="Polypodiopsida" family="Thelypteridaceae" genus="Steiropteris" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0864597FE8FB7CFD0D" box="[1138,1243,673,694]" italics="true" pageId="67" pageNumber="57">Steiropteris</emphasis>
</taxonomicName>
. The cause of this coloration, or its taxonomic importance, is unknown. Certain species complexes, especially
<taxonomicName id="4C1E4D63FFAA9B0864A37F8BFF14FD4D" class="Polypodiopsida" family="Thelypteridaceae" genus="Aspidium" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="crassifolium">
<emphasis id="B96AEAF2FFAA9B0864A37F8BFF14FD4D" italics="true" pageId="67" pageNumber="57">M. crassifolium</emphasis>
</taxonomicName>
,
<taxonomicName id="4C1E4D63FFAA9B0860947FABFED8FD4D" box="[191,383,737,759]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="chlamydophorum">
<emphasis id="B96AEAF2FFAA9B0860947FABFED8FD4D" box="[191,383,737,759]" italics="true" pageId="67" pageNumber="57">M. chlamydophorum</emphasis>
</taxonomicName>
,
<taxonomicName id="4C1E4D63FFAA9B0861A07FABFDBBFD4D" box="[395,540,737,759]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="motleyanum">
<emphasis id="B96AEAF2FFAA9B0861A07FABFDBBFD4D" box="[395,540,737,759]" italics="true" pageId="67" pageNumber="57">M. motleyanum</emphasis>
</taxonomicName>
, and close allies, are quite variable, and circumscription of taxa requires re-examination and detailed field study, a situation noticed by
<bibRefCitation id="EF8F4B11FFAA9B0862EC7E4BFCFBFCAC" author="Holttum" box="[711,860,770,791]" firstAuthor="Holttum" journalOrPublisher="Flora Malesiana" pageId="67" pageNumber="57" pagination="334 - 560" part="1" refId="ref109955" refString="HOLTTUM, R. E. 1982. Thelypteridaceae. Flora Malesiana, Ser. II, 1 (5): 334 - 560." title="Thelypteridaceae" type="journal article" year="1982">Holttum (1982)</bibRefCitation>
and by us.
</paragraph>
<paragraph id="8BA136E0FFAA9B0860837E6BFDA8FC2C" blockId="67.[121,1255,162,1079]" pageId="67" pageNumber="57">
Sequence data show that
<taxonomicName id="4C1E4D63FFAA9B0861B07E68FDBFFC8D" box="[411,536,801,822]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0861B07E68FDBFFC8D" box="[411,536,801,822]" italics="true" pageId="67" pageNumber="57">Mesophlebion</emphasis>
</taxonomicName>
is most closely related to
<taxonomicName id="4C1E4D63FFAA9B0863257E68FCD6FC8D" box="[782,881,801,822]" class="Polypodiopsida" family="Thelypteridaceae" genus="Cyclosorus" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="B96AEAF2FFAA9B0863257E68FCD6FC8D" box="[782,881,801,822]" italics="true" pageId="67" pageNumber="57">Cyclosorus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2595789FFAA9B08635C7E6BFC35FC8C" box="[887,914,802,823]" pageId="67" pageNumber="57" sensu="stricto">
<emphasis id="B96AEAF2FFAA9B08635C7E6BFC2BFC8C" box="[887,908,802,823]" italics="true" pageId="67" pageNumber="57">s.s</emphasis>
.
</taxonomicNameLabel>
and
<taxonomicName id="4C1E4D63FFAA9B0863EA7E68FB9DFC8D" box="[961,1082,801,822]" class="Polypodiopsida" family="Thelypteridaceae" genus="Ampelopteris" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0863EA7E68FB9DFC8D" box="[961,1082,801,822]" italics="true" pageId="67" pageNumber="57">Ampelopteris</emphasis>
</taxonomicName>
, the three genera forming a clade that is sister to the neotropical genus
<taxonomicName id="4C1E4D63FFAA9B0862467E0BFD76FCEC" box="[621,721,834,855]" class="Polypodiopsida" family="Thelypteridaceae" genus="Meniscium" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0862467E0BFD76FCEC" box="[621,721,834,855]" italics="true" pageId="67" pageNumber="57">Meniscium</emphasis>
</taxonomicName>
(
<bibRefCitation id="EF8F4B11FFAA9B0862F77E0BFC2EFCEC" author="He &amp; Zhang" box="[732,905,834,855]" firstAuthor="He" journalOrPublisher="Molec. Phylogen. Evol." pageId="67" pageNumber="57" pagination="757 - 764" part="65" refId="ref109255" refString="HE, L. J. &amp; X. C. ZHANG. 2012. Exploring generic delimitation within the fern family Thelypteridaceae. Molec. Phylogen. Evol. 65: 757 - 764." title="Exploring generic delimitation within the fern family Thelypteridaceae" type="journal article" year="2012">He &amp; Zhang 2012</bibRefCitation>
;
<bibRefCitation id="EF8F4B11FFAA9B0863BB7E0BFBE1FCEC" author="ALMEIDA, T. E &amp; S. HENNEQUIN &amp; H. SCHNEIDER &amp; A. R. SMITH &amp; J. A. N. BATISTA &amp; A. J. RAMALHO &amp; K. PROITE &amp; K. &amp; A. SALINO" box="[912,1094,834,855]" journalOrPublisher="Molec. Phylogen. Evol." pageId="67" pageNumber="57" pagination="688 - 700" part="94" refId="ref106225" refString="ALMEIDA, T. E., S. HENNEQUIN, H. SCHNEIDER, A. R. SMITH, J. A. N. BATISTA, A. J. RAMALHO, K. PROITE, &amp; K. &amp; A. SALINO. 2016. Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera. Molec. Phylogen. Evol. 94: 688 - 700." title="Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera" type="journal article" year="2016">Almeida et al. 2016</bibRefCitation>
; Fawcett et al. in press). The relationship of
<taxonomicName id="4C1E4D63FFAA9B0861517E28FE50FCCD" box="[378,503,865,886]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B0861517E28FE50FCCD" box="[378,503,865,886]" italics="true" pageId="67" pageNumber="57">Mesophlebion</emphasis>
</taxonomicName>
to
<taxonomicName id="4C1E4D63FFAA9B08623C7E28FD27FCCD" box="[535,640,865,886]" class="Polypodiopsida" family="Thelypteridaceae" genus="Steiropteris" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B08623C7E28FD27FCCD" box="[535,640,865,886]" italics="true" pageId="67" pageNumber="57">Steiropteris</emphasis>
</taxonomicName>
and
<taxonomicName id="4C1E4D63FFAA9B08629B7E28FC82FCCD" box="[688,805,865,886]" class="Polypodiopsida" family="Thelypteridaceae" genus="Plesioneuron" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="genus">
<emphasis id="B96AEAF2FFAA9B08629B7E28FC82FCCD" box="[688,805,865,886]" italics="true" pageId="67" pageNumber="57">Plesioneuron</emphasis>
</taxonomicName>
, however, is more remote (
<bibRefCitation id="EF8F4B11FFAA9B0864007E2BFB79FCCC" author="He &amp; Zhang" box="[1067,1246,866,887]" firstAuthor="He" journalOrPublisher="Molec. Phylogen. Evol." pageId="67" pageNumber="57" pagination="757 - 764" part="65" refId="ref109255" refString="HE, L. J. &amp; X. C. ZHANG. 2012. Exploring generic delimitation within the fern family Thelypteridaceae. Molec. Phylogen. Evol. 65: 757 - 764." title="Exploring generic delimitation within the fern family Thelypteridaceae" type="journal article" year="2012">He &amp; Zhang 2012</bibRefCitation>
;
<bibRefCitation id="EF8F4B11FFAA9B0860527ECBFE97FC2C" author="ALMEIDA, T. E &amp; S. HENNEQUIN &amp; H. SCHNEIDER &amp; A. R. SMITH &amp; J. A. N. BATISTA &amp; A. J. RAMALHO &amp; K. PROITE &amp; K. &amp; A. SALINO" box="[121,304,898,919]" journalOrPublisher="Molec. Phylogen. Evol." pageId="67" pageNumber="57" pagination="688 - 700" part="94" refId="ref106225" refString="ALMEIDA, T. E., S. HENNEQUIN, H. SCHNEIDER, A. R. SMITH, J. A. N. BATISTA, A. J. RAMALHO, K. PROITE, &amp; K. &amp; A. SALINO. 2016. Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera. Molec. Phylogen. Evol. 94: 688 - 700." title="Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera" type="journal article" year="2016">Almeida et al. 2016</bibRefCitation>
; Fawcett et al. in press).
</paragraph>
</subSubSection>
<subSubSection id="C304656BFFAA9B0860827EE8FB6FFB8C" pageId="67" pageNumber="57" type="taxon_list">
<paragraph id="8BA136E0FFAA9B0860827EE8FB6FFB8C" blockId="67.[121,1255,162,1079]" pageId="67" pageNumber="57">
<emphasis id="B96AEAF2FFAA9B0860827EE8FEFFFC0C" box="[169,344,929,951]" italics="true" pageId="67" pageNumber="57">Constituent species</emphasis>
.—
<taxonomicName id="4C1E4D63FFAA9B08615E7EE8FD01FC0C" authority="Holttum" authorityName="Holttum" box="[373,678,929,951]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="arenicola">
<emphasis id="B96AEAF2FFAA9B08615E7EE8FDEAFC0D" box="[373,589,929,950]" italics="true" pageId="67" pageNumber="57">Mesophlebion arenicola</emphasis>
Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B0862847EEBFBA1FC0C" authority="(Alderw.) Holttum" authorityName="Holttum" baseAuthorityName="Alderw." box="[687,1030,929,951]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="auriculiferum">
<emphasis id="B96AEAF2FFAA9B0862847EEBFCEAFC0D" box="[687,845,929,951]" italics="true" pageId="67" pageNumber="57">M. auriculiferum</emphasis>
(Alderw.) Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B0864247EEBFF6AFC6C" authority="(Ces.) Holttum" authorityName="Holttum" baseAuthorityName="Ces." class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="beccarianum">
<emphasis id="B96AEAF2FFAA9B0864247EEBFB04FC0D" box="[1039,1187,929,951]" italics="true" pageId="67" pageNumber="57">M. beccarianum</emphasis>
(Ces.) Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B0860FE7E8BFED8FC6C" authority="Holttum" authorityName="Holttum" box="[213,383,961,983]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="caroli">
<emphasis id="B96AEAF2FFAA9B0860FE7E8BFE80FC6D" box="[213,295,961,983]" italics="true" pageId="67" pageNumber="57">M. caroli</emphasis>
Holttum
</taxonomicName>
;
<emphasis id="B96AEAF2FFAA9B0861AC7E88FE37FC6D" box="[391,400,961,982]" italics="true" pageId="67" pageNumber="57">*</emphasis>
<taxonomicName id="4C1E4D63FFAA9B0861BA7E88FCD1FC6C" authority="(Rosenst. ex C. Chr.) Holttum" authorityName="Holttum" baseAuthorityName="C. Chr." box="[401,886,961,983]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="chlamydophorum">
<emphasis id="B96AEAF2FFAA9B0861BA7E88FDF6FC6D" box="[401,593,961,982]" italics="true" pageId="67" pageNumber="57">M. chlamydophorum</emphasis>
(Rosenst. ex C. Chr.) Holttum
</taxonomicName>
;
<emphasis id="B96AEAF2FFAA9B0863557E88FC2FFC6D" box="[894,904,961,982]" italics="true" pageId="67" pageNumber="57">*</emphasis>
<taxonomicName id="4C1E4D63FFAA9B0863A37E88FB67FC6C" authority="(Blume) Holttum" authorityName="Holttum" baseAuthorityName="Blume" box="[904,1216,961,983]" class="Polypodiopsida" family="Thelypteridaceae" genus="Aspidium" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="crassifolium">
<emphasis id="B96AEAF2FFAA9B0863A37E88FBB2FC6D" box="[904,1045,961,982]" italics="true" pageId="67" pageNumber="57">M. crassifolium</emphasis>
(Blume) Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B0864E37E8BFE83FC4C" authority="Holttum" authorityName="Holttum" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="dulitense">
<emphasis id="B96AEAF2FFAA9B0864E37E8BFF6DFC4D" italics="true" pageId="67" pageNumber="57">M. dulitense</emphasis>
Holttum
</taxonomicName>
;
<emphasis id="B96AEAF2FFAA9B0861057EA8FE90FC4D" box="[302,311,993,1014]" italics="true" pageId="67" pageNumber="57">*</emphasis>
<taxonomicName id="4C1E4D63FFAA9B08611C7EA8FDFDFC4C" authority="(Mett.) Holttum" authorityName="Holttum" baseAuthorityName="Mett." box="[311,602,993,1015]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="echinatum">
<emphasis id="B96AEAF2FFAA9B08611C7EA8FE10FC4D" box="[311,439,993,1014]" italics="true" pageId="67" pageNumber="57">M. echinatum</emphasis>
(Mett.) Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B0862487EABFC27FC4C" authority="(C. Chr.) Holttum" authorityName="Holttum" baseAuthorityName="C. Chr." box="[611,896,993,1015]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="endertii">
<emphasis id="B96AEAF2FFAA9B0862487EABFD6DFC4D" box="[611,714,993,1015]" italics="true" pageId="67" pageNumber="57">M. endertii</emphasis>
(C. Chr.) Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B0863A17EABFBD2FC4C" authority="Holttum" authorityName="Holttum" box="[906,1141,993,1015]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="falcatilobum">
<emphasis id="B96AEAF2FFAA9B0863A17EABFBBCFC4D" box="[906,1051,993,1015]" italics="true" pageId="67" pageNumber="57">M. falcatilobum</emphasis>
Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B0864547EABFEB9FBAC" authority="(Christ) Holttum" authorityName="Holttum" baseAuthorityName="Christ" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="hallieri">
<emphasis id="B96AEAF2FFAA9B0864547EABFB46FC4D" box="[1151,1249,993,1015]" italics="true" pageId="67" pageNumber="57">M. hallieri</emphasis>
(Christ) Holttum
</taxonomicName>
; *
<taxonomicName id="4C1E4D63FFAA9B08611B794BFCB3FBAC" authority="(Hook. ex Hook. &amp; Baker) Holttum" authorityName="Holttum" baseAuthorityName="Hook. &amp; Baker" box="[304,788,1025,1047]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="motleyanum">
<emphasis id="B96AEAF2FFAA9B08611B794BFE18FBAD" box="[304,447,1025,1047]" italics="true" pageId="67" pageNumber="57">M.motleyanum</emphasis>
(Hook. ex Hook. &amp; Baker) Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B086337794BFBEDFBAC" authority="(Baker) Holttum" authorityName="Holttum" baseAuthorityName="Baker" box="[796,1098,1025,1047]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="oligodictyon">
<emphasis id="B96AEAF2FFAA9B086337794BFC00FBAD" box="[796,935,1025,1047]" italics="true" pageId="67" pageNumber="57">M. oligodictyon</emphasis>
(Baker) Holttum
</taxonomicName>
; *
<taxonomicName id="4C1E4D63FFAA9B086476794BFEC0FB8C" authority="(Alderw.) Holttum" authorityName="Holttum" baseAuthorityName="Alderw." class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="persquamiferum">
<emphasis id="B96AEAF2FFAA9B086476794BFF17FB8D" italics="true" pageId="67" pageNumber="57">M.persquamiferum</emphasis>
(Alderw.) Holttum
</taxonomicName>
; *
<taxonomicName id="4C1E4D63FFAA9B086151796BFDE3FB8C" authority="Holttum" authorityName="Holttum" box="[378,580,1057,1079]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="rufescens">
<emphasis id="B96AEAF2FFAA9B086151796BFE4BFB8D" box="[378,492,1057,1079]" italics="true" pageId="67" pageNumber="57">M. rufescens</emphasis>
Holttum
</taxonomicName>
;
<taxonomicName id="4C1E4D63FFAA9B086267796BFCD3FB8C" authority="(Alderw.) Holttum" authorityName="Holttum" baseAuthorityName="Alderw." box="[588,884,1057,1079]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="teuscheri">
<emphasis id="B96AEAF2FFAA9B086267796BFD1AFB8D" box="[588,701,1057,1079]" italics="true" pageId="67" pageNumber="57">M. teuscheri</emphasis>
(Alderw.) Holttum
</taxonomicName>
; *
<taxonomicName id="4C1E4D63FFAA9B0863AC796BFB6FFB8C" authority="(C. Chr.) Holttum" box="[903,1224,1057,1079]" class="Polypodiopsida" family="Thelypteridaceae" genus="Mesophlebion" kingdom="Plantae" order="Polypodiales" pageId="67" pageNumber="57" phylum="Tracheophyta" rank="species" species="trichopodum">
<emphasis id="B96AEAF2FFAA9B0863AC796BFBBEFB8D" box="[903,1049,1057,1079]" italics="true" pageId="67" pageNumber="57">M. trichopodum</emphasis>
(C. Chr.) Holttum
</taxonomicName>
</paragraph>
</subSubSection>
</treatment>
</document>