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<document ID-DOI="http://doi.org/10.5281/zenodo.5187074" ID-ISSN="1639-4798" ID-Zenodo-Dep="5187074" approvalRequired="13" approvalRequired_for_textStreams="13" checkinTime="1628768937924" checkinUser="carolina" docAuthor="Stone, Robert Douglas" docDate="2006" docId="03EB87EFFF8AFFF90FF51FE0FEB4FD40" docLanguage="en" docName="Adansonia.28.2.337-358.pdf" docOrigin="Adansonia (3) 28 (2)" docStyle="DocumentStyle:7E81836D30F26F6CECD5F7ABFAAC2CA1.1:Adansonia.2005-2008.journal_article" docStyleId="7E81836D30F26F6CECD5F7ABFAAC2CA1" docStyleName="Adansonia.2005-2008.journal_article" docStyleVersion="1" docTitle="Memecylon xiphophyllum R. D. Stone 2006, sp. nov." docType="treatment" docVersion="2" lastPageId="9" lastPageNumber="346" masterDocId="FFD2FF97FF8DFFF00D4D1F39FFCCFFEE" masterDocTitle="New species of Memecylon L. and Warneckea Gilg (Melastomataceae) from Madagascar and Mayotte" masterLastPageNumber="358" masterPageNumber="337" pageId="7" pageNumber="344" updateTime="1628770741761" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>New species of Memecylon L. and Warneckea Gilg (Melastomataceae) from Madagascar and Mayotte</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Stone, Robert Douglas</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Adansonia</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2006</mods:date>
<mods:detail type="series">
<mods:title>3</mods:title>
</mods:detail>
<mods:detail type="volume">
<mods:number>28</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>2</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>337</mods:start>
<mods:end>358</mods:end>
</mods:extent>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://doi.org/10.5281/zenodo.5187074</mods:identifier>
<mods:identifier type="ISSN">1639-4798</mods:identifier>
<mods:identifier type="Zenodo-Dep">5187074</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:plazi:treatment:03EB87EFFF8AFFF90FF51FE0FEB4FD40" httpUri="http://treatment.plazi.org/id/03EB87EFFF8AFFF90FF51FE0FEB4FD40" lastPageId="9" lastPageNumber="346" pageId="7" pageNumber="344">
<subSubSection box="[696,1191,216,243]" pageId="7" pageNumber="344" type="nomenclature">
<paragraph blockId="7.[696,1191,216,274]" box="[696,1191,216,243]" pageId="7" pageNumber="344">
<heading box="[696,1191,216,243]" centered="true" fontSize="11" level="2" pageId="7" pageNumber="344" reason="6">
<taxonomicName authority="R.D.Stone" authorityName="R. D. Stone" authorityYear="2006" box="[696,1097,216,243]" class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="7" pageNumber="344" phylum="Tracheophyta" rank="species" species="xiphophyllum" status="sp. nov.">
<emphasis bold="true" box="[696,972,217,243]" italics="true" pageId="7" pageNumber="344">Memecylon xiphophyllum</emphasis>
R.D.Stone
</taxonomicName>
,
<taxonomicNameLabel box="[1108,1191,216,242]" pageId="7" pageNumber="344" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection lastPageId="8" lastPageNumber="345" pageId="7" pageNumber="344" type="description">
<paragraph blockId="7.[696,1191,216,274]" box="[903,983,248,274]" pageId="7" pageNumber="344">
(
<figureCitation box="[911,975,248,274]" captionStart="FIG" captionStartId="8.[113,124,1505,1522]" captionTargetBox="[189,1122,222,1476]" captionTargetId="figure-20@8.[155,1167,198,1496]" captionTargetPageId="8" captionText="FIG. 4. — Memecylon xiphophyllum R.D.Stone: A, leafy branchlet; B, flowering branchlet; C, flower bud just before anthesis; D, same flower bud with petals and stamens removed; E, anther (side view); F, anther (oblique view of dorsal face). Stone et al. 2393. Scale bars: A, 10 cm; B, 5 cm; C, D, 2 mm; E, F, 1 mm." figureDoi="http://doi.org/10.5281/zenodo.5187092" httpUri="https://zenodo.org/record/5187092/files/figure.png" pageId="7" pageNumber="344">Fig. 4</figureCitation>
)
</paragraph>
<paragraph blockId="7.[675,1212,296,621]" pageId="7" pageNumber="344">
<emphasis box="[677,692,296,319]" italics="true" pageId="7" pageNumber="344">A</emphasis>
M. subsessili H.Perrier
<emphasis italics="true" pageId="7" pageNumber="344">
ramulis crassioribus, laminis foliorum multo longioribus (usque ad
<quantity box="[1047,1109,321,344]" metricMagnitude="-1" metricUnit="m" metricValue="4.0" pageId="7" pageNumber="344" unit="cm" value="40.0">40 cm</quantity>
) ad apices acutis non conspicue acuminatis, cymulis ad nodos strumosos ramulorum vetustiorum non in axillis foliorum, floribus grandioribus, bracteis caducis non persistentibus differt.
</emphasis>
</paragraph>
<paragraph blockId="7.[675,1212,296,621]" pageId="7" pageNumber="344">
<typeStatus box="[677,741,439,462]" pageId="7" pageNumber="344">TYPUS</typeStatus>
. —
<materialsCitation collectingDate="2001-11-17" collectionCode="CAS, G, K, MO, P, TAN, US" country="Madagascar" elevation="60" latitude="-17.708334" location="Analalava forest" longLatPrecision="21" longitude="49.447224" municipality="Foulpointe" pageId="7" pageNumber="344" specimenCount="1" stateProvince="Toamasina" typeStatus="holotype">
<emphasis bold="true" box="[792,922,440,463]" pageId="7" pageNumber="344">
<collectingCountry box="[792,918,440,463]" name="Madagascar" pageId="7" pageNumber="344">Madagascar</collectingCountry>
.
</emphasis>
<collectingRegion box="[930,1142,440,463]" country="Madagascar" name="Toamasina" pageId="7" pageNumber="344">Toamasina province</collectingRegion>
,
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west of
<collectingMunicipality box="[761,874,466,489]" pageId="7" pageNumber="344">Foulpointe</collectingMunicipality>
[Mahavelona],
<location LSID="urn:lsid:plazi:treatment:03EB87EFFF8AFFF90FF51FE0FEB4FD40:8E9D6022FF8AFFF7095C1EEBFB74FE07" box="[1041,1208,466,489]" country="Madagascar" latitude="-17.708334" longLatPrecision="21" longitude="49.447224" municipality="Foulpointe" name="Analalava forest" pageId="7" pageNumber="344" stateProvince="Toamasina">Analalava forest</location>
,
<geoCoordinate box="[679,793,493,516]" degrees="17" direction="south" minutes="42" orientation="latitude" pageId="7" pageNumber="344" precision="15" seconds="30" value="-17.708334">17°4230”S</geoCoordinate>
,
<geoCoordinate box="[804,920,493,516]" degrees="49" direction="east" minutes="26" orientation="longitude" pageId="7" pageNumber="344" precision="15" seconds="50" value="49.447224">49°2650”E</geoCoordinate>
, alt.
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<elevation box="[968,1022,493,516]" metricMagnitude="1" metricUnit="m" metricValue="6.0" pageId="7" pageNumber="344" unit="m" value="60.0">60 m</elevation>
</quantity>
, north-facing slope in deeply shaded understory of evergreen rain forest on laterite,
<date box="[791,907,545,568]" pageId="7" pageNumber="344" value="2001-11-17">
<collectingDate box="[791,907,545,568]" pageId="7" pageNumber="344" value="2001-11-17">17.XI.2001</collectingDate>
</date>
,
<emphasis box="[916,1077,546,569]" italics="true" pageId="7" pageNumber="344">Stone et al. 2393</emphasis>
(holo-,
<collectionCode box="[1157,1205,545,568]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15690" lsid="urn:lsid:biocol.org:col:34700" name="California Academy of Sciences" pageId="7" pageNumber="344" type="Museum">CAS</collectionCode>
; iso-,
<collectionCode box="[724,745,572,595]" country="Switzerland" lsid="urn:lsid:biocol.org:col:15706" name="Conservatoire et Jardin botaniques de la Ville de Genève" pageId="7" pageNumber="344" type="Herbarium">G</collectionCode>
,
<collectionCode box="[756,775,572,595]" country="United Kingdom" lsid="urn:lsid:biocol.org:col:15867" name="Royal Botanic Gardens" pageId="7" pageNumber="344" type="Herbarium">K</collectionCode>
,
<collectionCode box="[786,832,572,595]" country="USA" lsid="urn:lsid:biocol.org:col:15859" name="Missouri Botanical Garden" pageId="7" pageNumber="344" type="Herbarium">MO</collectionCode>
,
<collectionCode box="[842,854,572,595]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="7" pageNumber="344" type="Herbarium">P</collectionCode>
,
<collectionCode box="[863,916,572,595]" country="Madagascar" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13842" lsid="urn:lsid:biocol.org:col:13842" name="Parc de Tsimbazaza" pageId="7" pageNumber="344" type="Herbarium">TAN</collectionCode>
,
<collectionCode box="[926,960,572,595]" country="South Africa" name="University of Stellenbosch" pageId="7" pageNumber="344">US</collectionCode>
; flower buds in spirit collection at
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)
</materialsCitation>
.
</paragraph>
<paragraph blockId="7.[675,1212,660,1700]" box="[677,821,660,686]" pageId="7" pageNumber="344">DESCRIPTION</paragraph>
<paragraph blockId="7.[675,1212,660,1700]" pageId="7" pageNumber="344">
Evergreen small tree; branchlets terete and thick (up to
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in diameter), leafy only at the apex, with age becoming conspicuously swollen at the nodes; internodes
<quantity box="[880,959,787,813]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" metricValueMax="7.0" metricValueMin="5.0" pageId="7" pageNumber="344" unit="cm" value="6.0" valueMax="7.0" valueMin="5.0">5-7 cm</quantity>
long. Leaves subcoriaceous, sessile or nearly so, yellowish green on the upper surface (when dry), bright to pale green or violaceous on the lower, very finely granular-rugose on both surfaces; blades narrowly lanceolate,
<quantity metricMagnitude="-1" metricUnit="m" metricValue="3.0" metricValueMax="4.0" metricValueMin="2.0" pageId="7" pageNumber="344" unit="cm" value="30.0" valueMax="40.0" valueMin="20.0">20- 40 cm</quantity>
long,
<quantity box="[809,905,945,971]" metricMagnitude="-2" metricUnit="m" metricValue="5.25" metricValueMax="6.5" metricValueMin="4.0" pageId="7" pageNumber="344" unit="cm" value="5.25" valueMax="6.5" valueMin="4.0">4-6.5 cm</quantity>
wide, rounded and narrowly cordate at base, long-attenuate and sharply acute at apex; mid-nerve canaliculate on the upper surface, dark and prominent on the lower, very wide at the base (up to
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), becoming progressively narrower toward the apex; transverse veins clearly visible on both surfaces (especially the lower), perpendicular to the mid-nerve and spaced
<quantity box="[1108,1209,1167,1193]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" metricValueMax="10.0" metricValueMin="6.0" pageId="7" pageNumber="344" unit="mm" value="8.0" valueMax="10.0" valueMin="6.0">6-10 mm</quantity>
apart, ± straight or occasionally forked; lateral veins situated
<quantity box="[769,859,1230,1256]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="7" pageNumber="344" unit="mm" value="2.5" valueMax="3.0" valueMin="2.0">2-3 mm</quantity>
from the margin; young leaves strongly violaceous. Cymes contracted,
<emphasis box="[1079,1095,1262,1288]" italics="true" pageId="7" pageNumber="344">c.</emphasis>
<quantity box="[1099,1153,1262,1288]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="7" pageNumber="344" unit="cm" value="1.0">1 cm</quantity>
long, generally 3-flowered, fascicled at nodes well below the leaves; peduncles
<emphasis box="[910,927,1325,1351]" italics="true" pageId="7" pageNumber="344">c.</emphasis>
<quantity box="[933,998,1325,1351]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="7" pageNumber="344" unit="mm" value="2.0">2 mm</quantity>
long, axes
<quantity box="[1120,1209,1325,1351]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="7" pageNumber="344" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1-2 mm</quantity>
long (true pedicels lacking); bracts early deciduous, the bracteoles
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long, lanceolate, carinate. Flowers at anthesis not seen; hypantho-calyx obconic in bud,
<quantity box="[818,902,1452,1478]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" pageId="7" pageNumber="344" unit="mm" value="6.5">6.5 mm</quantity>
long,
<quantity box="[965,1048,1452,1478]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" pageId="7" pageNumber="344" unit="mm" value="4.5">4.5 mm</quantity>
wide, minutely granular on the outer surface, the margin 4-lobed, the lobes
<emphasis box="[773,790,1516,1542]" italics="true" pageId="7" pageNumber="344">c.</emphasis>
<quantity box="[796,861,1515,1541]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="7" pageNumber="344" unit="mm" value="1.0">1 mm</quantity>
long, broadly rounded, apiculate. Corolla acute; petals violet, ovate,
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long,
<quantity box="[678,743,1579,1605]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="7" pageNumber="344" unit="mm" value="2.0">2 mm</quantity>
wide, base broadly rounded, apex attenuate and acute. Anthers
<quantity box="[892,959,1610,1636]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="7" pageNumber="344" unit="mm" value="2.0">2 mm</quantity>
long, the extremity of the connective abruptly and narrowly conical, the dorsal gland crateriform and medially positioned,
</paragraph>
<paragraph blockId="8.[158,175,223,246]" box="[158,175,223,248]" pageId="8" pageNumber="345">A</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.5187092" ID-Zenodo-Dep="5187092" httpUri="https://zenodo.org/record/5187092/files/figure.png" pageId="8" pageNumber="345" startId="8.[113,124,1505,1522]" targetBox="[189,1122,222,1476]" targetPageId="8">
<paragraph blockId="8.[113,1209,1505,1568]" pageId="8" pageNumber="345">
FIG. 4. —
<taxonomicName authority="R. D. Stone" authorityName="R. D. Stone" authorityYear="2006" box="[192,497,1505,1522]" class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="8" pageNumber="345" phylum="Tracheophyta" rank="species" species="xiphophyllum">
<emphasis box="[192,404,1505,1522]" italics="true" pageId="8" pageNumber="345">Memecylon xiphophyllum</emphasis>
R.D.Stone
</taxonomicName>
:
<emphasis bold="true" box="[504,517,1505,1522]" pageId="8" pageNumber="345">A</emphasis>
, leafy branchlet;
<emphasis bold="true" box="[659,672,1505,1522]" pageId="8" pageNumber="345">B</emphasis>
, flowering branchlet;
<emphasis bold="true" box="[851,865,1505,1522]" pageId="8" pageNumber="345">C</emphasis>
, flower bud just before anthesis;
<emphasis bold="true" box="[1140,1154,1505,1522]" pageId="8" pageNumber="345">D</emphasis>
, same flower bud with petals and stamens removed;
<emphasis bold="true" box="[502,514,1528,1545]" pageId="8" pageNumber="345">E</emphasis>
, anther (side view);
<emphasis bold="true" box="[683,694,1528,1545]" pageId="8" pageNumber="345">F</emphasis>
, anther (oblique view of dorsal face).
<emphasis box="[1009,1153,1528,1545]" italics="true" pageId="8" pageNumber="345">Stone et al. 2393</emphasis>
. Scale bars: A, 10 cm; B, 5 cm; C, D, 2 mm; E, F, 1 mm.
</paragraph>
</caption>
<paragraph blockId="8.[113,646,1610,1700]" pageId="8" pageNumber="345">
the pollen sacs occupying greater than half the length on the ventral side; filaments short. Style
<emphasis box="[115,132,1674,1700]" italics="true" pageId="8" pageNumber="345">c.</emphasis>
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long; ovules 9. Fruit unknown.
</paragraph>
</subSubSection>
<subSubSection lastPageId="9" lastPageNumber="346" pageId="8" pageNumber="345" type="discussion">
<paragraph blockId="8.[677,1210,1610,1700]" box="[677,777,1610,1636]" pageId="8" pageNumber="345">REMARKS</paragraph>
<paragraph blockId="8.[677,1210,1610,1700]" lastBlockId="9.[111,647,216,686]" lastPageId="9" lastPageNumber="346" pageId="8" pageNumber="345">
<taxonomicName authorityName="R. D. Stone" authorityYear="2006" box="[677,942,1642,1668]" class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="8" pageNumber="345" phylum="Tracheophyta" rank="species" species="xiphophyllum">
<emphasis box="[677,942,1642,1668]" italics="true" pageId="8" pageNumber="345">Memecylon xiphophyllum</emphasis>
</taxonomicName>
is known only from the
<typeStatus box="[678,723,1674,1700]" pageId="8" pageNumber="345">type</typeStatus>
collection. It somewhat resembles
<taxonomicName box="[1079,1203,1674,1700]" class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="8" pageNumber="345" phylum="Tracheophyta" rank="species" species="subsessile">
<emphasis box="[1079,1203,1674,1700]" italics="true" pageId="8" pageNumber="345">M. subsessile</emphasis>
</taxonomicName>
, notably in its terete branchlets, narrowly lanceolate and basally cordate leaves, and transverse veins more or less perpendicular to the mid-nerve. The details of the hypantho-calyx and the anthers are also similar in the two species.
<taxonomicName class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="9" pageNumber="346" phylum="Tracheophyta" rank="species" species="subsessile">
<emphasis italics="true" pageId="9" pageNumber="346">Memecylon subsessile</emphasis>
</taxonomicName>
differs however in its slender branchlets, much smaller leaves that are short-petioled at the base and strongly acuminate at the apex, and smaller flowers borne in axillary cymes with bracts persistent.
</paragraph>
<paragraph blockId="9.[111,647,216,686]" pageId="9" pageNumber="346">
The thick branchlets and foliar mid-nerves of
<taxonomicName authorityName="R. D. Stone" authorityYear="2006" box="[115,296,533,559]" class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="9" pageNumber="346" phylum="Tracheophyta" rank="species" species="xiphophyllum">
<emphasis box="[115,296,533,559]" italics="true" pageId="9" pageNumber="346">M. xiphophyllum</emphasis>
</taxonomicName>
are similar to those of
<taxonomicName authority="Blume" authorityName="Blume" class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="9" pageNumber="346" phylum="Tracheophyta" rank="species" species="crassinerve">
<emphasis italics="true" pageId="9" pageNumber="346">M. crassinerve</emphasis>
Blume
</taxonomicName>
(an endemic of Nosy-Be island off the northwestern coast of
<collectingCountry box="[343,472,597,623]" name="Madagascar" pageId="9" pageNumber="346">Madagascar</collectingCountry>
), but the broadly oblong and apically rounded leaves of
<taxonomicName box="[504,646,628,654]" class="Magnoliopsida" family="Melastomataceae" genus="Memecylon" kingdom="Plantae" order="Myrtales" pageId="9" pageNumber="346" phylum="Tracheophyta" rank="species" species="crassinerve">
<emphasis box="[504,646,628,654]" italics="true" pageId="9" pageNumber="346">M. crassinerve</emphasis>
</taxonomicName>
are completely different.
</paragraph>
</subSubSection>
</treatment>
</document>