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<document id="0E8C81D05286873CCD41608395770FD5" ID-DOI="10.11646/phytotaxa.234.2.6" ID-ISSN="1179-3163" ID-Zenodo-Dep="13632903" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1725319118179" checkinUser="felipe" docAuthor="Santos, Matheus F., Lucas, Eve &amp; Sano, Paulo T." docDate="2015" docId="039F882BFF9DFF99FF04FF708700A785" docLanguage="en" docName="phytotaxa.234.2.6.pdf" docOrigin="Phytotaxa 234 (2)" docSource="http://dx.doi.org/10.11646/phytotaxa.234.2.6" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Myrcia attenuata M. F. Santos 2015, sp. nov." docType="treatment" docVersion="2" lastPageNumber="165" masterDocId="FFA6F053FF99FF9FFF8CFFD08539A758" masterDocTitle="Five new South American species of Myrcia s. l. (Myrtaceae)" masterLastPageNumber="171" masterPageNumber="159" pageNumber="163" updateTime="1725319528983" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
<mods:mods id="DE012A3406A8F2273BBE49EE96E89326" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="474E04C58B183178437980FB951F3DEC">
<mods:title id="0BB3DD8583180823A7F28E47340124E1">Five new South American species of Myrcia s. l. (Myrtaceae)</mods:title>
</mods:titleInfo>
<mods:name id="197D97BB43AFC9FB321D549A698F22A8" type="personal">
<mods:role id="2019735386E9E0C05EFB6C7E4E6F0BC5">
<mods:roleTerm id="1E900869BFF1F899C054A5DA243213C2">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="7E5FEFE306E8973C7FABF9F6E34EB37A">Santos, Matheus F.</mods:namePart>
<mods:affiliation id="CB075134DB6E249695D94DA52F0197E9">Universidade de São Paulo, Departamento de Botânica, Laboratório de Sistemática Vegetal, Rua do Matão 277, São Paulo, SP 05508 - 090, Brazil.</mods:affiliation>
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<mods:namePart id="353C1705DEA8AC0E1C21671A29C1E863">Lucas, Eve</mods:namePart>
<mods:affiliation id="4B46EA6F97EB97139FFFE69B3AB1EAA4">Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey TW 9 3 AB, United Kingdom.</mods:affiliation>
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<mods:role id="F76B4D90B27355151DD7DFC968C3ED12">
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</mods:role>
<mods:namePart id="7EB6454CE6743D497106BF70852AB80D">Sano, Paulo T.</mods:namePart>
<mods:affiliation id="487FE35583AEF2AF90130050C71FF0C4">Universidade de São Paulo, Departamento de Botânica, Laboratório de Sistemática Vegetal, Rua do Matão 277, São Paulo, SP 05508 - 090, Brazil.</mods:affiliation>
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<mods:title id="A1493811C39D4FC9C7C3F8DCCD8C7BFB">Phytotaxa</mods:title>
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<mods:part id="726DD8472DADF8908EF5EDB8CE7EB3F8">
<mods:date id="0BDC78E2E23C1BCE318E51AC223B748A">2015</mods:date>
<mods:detail id="238232298989A55CE8C907F38B18A6F6" type="pubDate">
<mods:number id="09952F4CC2595B36D486D8787618B1C2">2015-11-13</mods:number>
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<mods:number id="90BDE611A651EA6573EEF7BC42B7CD88">234</mods:number>
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<mods:number id="6ED04CF180C93E2029C3728BA892B61C">2</mods:number>
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<mods:url id="1446810A14FA7B3FB09C5EDDCAF2013F">http://dx.doi.org/10.11646/phytotaxa.234.2.6</mods:url>
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<mods:classification id="EA448F223EB06EA79EB6B87F48B3FFCC">journal article</mods:classification>
<mods:identifier id="7A5E02960DD79F5EE277E04064ADF556" type="DOI">10.11646/phytotaxa.234.2.6</mods:identifier>
<mods:identifier id="3CF7C9B1F442D4AE33E1B87323ECDE02" type="ISSN">1179-3163</mods:identifier>
<mods:identifier id="C5115FD2EE991174F17262D49BBC3DCD" type="Zenodo-Dep">13632903</mods:identifier>
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<treatment id="039F882BFF9DFF99FF04FF708700A785" LSID="urn:lsid:plazi:treatment:039F882BFF9DFF99FF04FF708700A785" httpUri="http://treatment.plazi.org/id/039F882BFF9DFF99FF04FF708700A785" lastPageId="6" lastPageNumber="165" pageId="4" pageNumber="163">
<subSubSection id="C32C6AB6FF9DFF9BFF04FF708632A7E1" box="[136,779,158,185]" pageId="4" pageNumber="163" type="nomenclature">
<paragraph id="8B89393DFF9DFF9BFF04FF708632A7E1" blockId="4.[136,779,158,185]" box="[136,779,158,185]" pageId="4" pageNumber="163">
<heading id="D0C18E51FF9DFF9BFF04FF708632A7E1" box="[136,779,158,185]" fontSize="11" level="2" pageId="4" pageNumber="163" reason="4">
<emphasis id="B942E52FFF9DFF9BFF04FF7085A4A7E1" bold="true" box="[136,157,160,185]" pageId="4" pageNumber="163">2.</emphasis>
<taxonomicName id="4C3642BEFF9DFF9BFF28FF4E84CAA7E1" ID-CoL="456VX" authority="M.F.Santos" authorityName="M. F. Santos" authorityYear="2015" box="[164,499,158,185]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="4" pageNumber="163" phylum="Tracheophyta" rank="species" species="attenuata" status="sp. nov.">
<emphasis id="B942E52FFF9DFF9BFF28FF4E8452A7E1" bold="true" box="[164,363,158,185]" italics="true" pageId="4" pageNumber="163">Myrcia attenuata</emphasis>
M.F.Santos
</taxonomicName>
,
<emphasis id="B942E52FFF9DFF9BFE72FF70876AA7E1" box="[510,595,160,185]" italics="true" pageId="4" pageNumber="163">
<taxonomicNameLabel id="A2715854FF9DFF9BFE72FF70876AA7E1" box="[510,595,160,185]" pageId="4" pageNumber="163" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="130D25B8FF9DFF9BFDEEFF708788A7E1" box="[610,689,160,185]" captionStart="FIGURE 2" captionStartId="3.[136,229,1902,1923]" captionTargetBox="[168,1416,888,1864]" captionTargetId="figure-290@3.[151,1436,857,1878]" captionTargetPageId="3" captionText="FIGURE 2. Species distributions. Myrcia ascendens=star; Myrcia attenuata=triangle; Myrcia costeira=circle; Myrcia rupestris=square; Myrcia subterminalis=diamond." figureDoi="http://doi.org/10.5281/zenodo.13632907" httpUri="https://zenodo.org/record/13632907/files/figure.png" pageId="4" pageNumber="163">Figs. 2</figureCitation>
,
<figureCitation id="130D25B8FF9DFF9BFD31FF70863AA7E1" box="[701,771,160,185]" captionStart="FIGURE 3" captionStartId="5.[136,229,1901,1922]" captionTargetBox="[180,1381,305,1865]" captionTargetId="figure-50@5.[151,1436,245,1876]" captionTargetPageId="5" captionText="FIGURE 3. Myrcia attenuata. A. habit. B. detail of keeled twig. C. flower at anthesis. D. fruit with attenuate base and remnants of calyx lobes. Myrcia costeira. E. habit. F. detail of keeled twig. G. detail of inflorescence with opposite branching and terminal dichasia. H. floral bud. I. longitudinal section of ovary showing two locules. J. fruit without calyx lobe remnants. Vouchers:A. Granville 6503 (U); B and D. Oldeman T-650 (P); C. Granville 6503 (B); E–I. Hatschbach 31837 (SP); J. Barros 1848 (SPF)." figureDoi="http://doi.org/10.5281/zenodo.13632909" httpUri="https://zenodo.org/record/13632909/files/figure.png" pageId="4" pageNumber="163">3A–D</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C32C6AB6FF9DFF9BFF04FF358681A664" pageId="4" pageNumber="163" type="reference_group">
<paragraph id="8B89393DFF9DFF9BFF04FF358681A664" blockId="4.[136,1452,229,316]" pageId="4" pageNumber="163">
<taxonomicName id="4C3642BEFF9DFF9BFF04FF35847BA7A4" ID-CoL="456VX" authorityName="M. F. Santos" authorityYear="2015" box="[136,322,229,252]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="4" pageNumber="163" phylum="Tracheophyta" rank="species" species="attenuata">
<emphasis id="B942E52FFF9DFF9BFF04FF35847BA7A4" box="[136,322,229,252]" italics="true" pageId="4" pageNumber="163">Myrcia attenuata</emphasis>
</taxonomicName>
is related to
<taxonomicName id="4C3642BEFF9DFF9BFE58FF358650A7A4" ID-CoL="7444X" authority="Kiaerskou (1893: 65)" authorityName="Kiaerskou" authorityPageNumber="65" authorityYear="1893" box="[468,873,229,252]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="4" pageNumber="163" phylum="Tracheophyta" rank="species" species="bicolor">
<emphasis id="B942E52FFF9DFF9BFE58FF35874FA7A4" box="[468,630,229,252]" italics="true" pageId="4" pageNumber="163">Myrcia bicolor</emphasis>
<bibRefCitation id="EFA744CCFF9DFF9BFDF3FF358650A7A4" author="Kiaerskou, H." box="[639,873,229,252]" pageId="4" pageNumber="163" pagination="1 - 199" refId="ref9775" refString="Kiaerskou, H. (1893) Enumeratio myrtacearum brasiliensium quas collegiunt Glaziou, Lund, Mendonca, Raben, Reinhardt, Schenck, Warming aliique. Symbolarum ad floram Brasiliae Centralis cognoscendam 39: 1 - 199. http: // dx. doi. org / 10.5962 / bhl. title. 4459" type="journal article" year="1893">Kiaerskou (1893: 65)</bibRefCitation>
</taxonomicName>
, but differs in having immature keeled branches (vs. immature branches not keeled), mixed terminal and subterminal inflorescences (vs. only terminal inflorescences), turbinate floral buds (vs. clavate) and fruit with an attenuated base (vs. rounded base).
</paragraph>
</subSubSection>
<subSubSection id="C32C6AB6FF9DFF9BFF04FEBE8670A15D" pageId="4" pageNumber="163" type="materials_examined">
<paragraph id="8B89393DFF9DFF9BFF04FEBE8618A6FF" blockId="4.[136,1451,366,423]" pageId="4" pageNumber="163">
<emphasis id="B942E52FFF9DFF9BFF04FEBE8583A6DB" bold="true" box="[136,186,366,387]" pageId="4" pageNumber="163">Type</emphasis>
:—
<collectingCountry id="F32179ADFF9DFF9BFF5AFEBE84A6A6DB" box="[214,415,366,387]" name="French Guiana" pageId="4" pageNumber="163">FRENCH GUIANA</collectingCountry>
. Montagne de la Trinité sommet NE ca/
<quantity id="4CCE94D8FF9DFF9BFC90FEBE8660A6DB" box="[796,857,366,387]" metricMagnitude="2" metricUnit="m" metricValue="4.0" pageId="4" pageNumber="163" unit="m" value="400.0">400 m</quantity>
in high forest, in flat area,
<date id="FF881FFDFF9DFF9BFBDBFEBE81CDA6DB" box="[1111,1268,366,387]" pageId="4" pageNumber="163" value="1984-02-04">4 February 1984</date>
(fl.),
<emphasis id="B942E52FFF9DFF9BFAA5FEBE85D4A6FF" italics="true" pageId="4" pageNumber="163">J.J. Granville 6503</emphasis>
(
<typeStatus id="548D879FFF9DFF9BFF76FE428469A6FF" box="[250,336,402,423]" pageId="4" pageNumber="163" type="holotype">holotype</typeStatus>
B!,
<typeStatus id="548D879FFF9DFF9BFEF5FE4284F1A6FF" box="[377,456,402,423]" pageId="4" pageNumber="163" type="isotype">isotypes</typeStatus>
BR!, CAY not seen, G!, U image!).
</paragraph>
<paragraph id="8B89393DFF9DFF9BFF04FE088670A15D" blockId="4.[136,1452,472,2081]" pageId="4" pageNumber="163">
<emphasis id="B942E52FFF9DFF9BFF04FE088584A6A9" bold="true" box="[136,189,472,497]" pageId="4" pageNumber="163">Tree</emphasis>
<quantity id="4CCE94D8FF9DFF9BFF48FE088422A6A9" box="[196,283,472,497]" metricMagnitude="1" metricUnit="m" metricValue="1.45" metricValueMax="2.5" metricValueMin="0.4" pageId="4" pageNumber="163" unit="m" value="14.5" valueMax="25.0" valueMin="4.0">
4–
<specimenCount id="9D30F2B4FF9DFF9BFF6DFE088422A6A9" box="[225,283,472,497]" count="25" pageId="4" pageNumber="163" type="generic">25 m</specimenCount>
</quantity>
. Epidermal peeling absent in immature parts; trichome brown,
<quantity id="4CCE94D8FF9DFF9BFC55FE088166A6A9" box="[985,1119,472,497]" metricMagnitude="-4" metricUnit="m" metricValue="2.0" metricValueMax="3.0" metricValueMin="1.0" pageId="4" pageNumber="163" unit="mm" value="0.2" valueMax="0.3" valueMin="0.1">0.1–0.3 mm</quantity>
long, dibrachiate.
<emphasis id="B942E52FFF9DFF9BFAA2FE088052A6A9" bold="true" box="[1326,1387,472,497]" pageId="4" pageNumber="163">Twig</emphasis>
when immature reddish, flattened, longitudinally sulcate, keeled, pubescent or puberulent; mature twig greyish, cylindrical, cortex slightly cracked, glabrous; branching monopodial or sympodial, 2–3 branches per node, epidermal protrusion present at the internodes (sympodial branching) or absent (monopodial branching), internode 2.0–
<quantity id="4CCE94D8FF9DFF9BFA99FD94805CA505" box="[1301,1381,580,605]" metricMagnitude="-2" metricUnit="m" metricValue="6.1" pageId="4" pageNumber="163" unit="cm" value="6.1">6.1 cm</quantity>
long; cataphyll scale-like to foliaceous, 2–5 ×
<quantity id="4CCE94D8FF9DFF9BFDD5FDB887A7A5D9" box="[601,670,616,641]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="4" pageNumber="163" unit="mm" value="1.0">1 mm</quantity>
, present at every internode, early deciduous, free, deltate, externally pubescent, internally glabrous; branch with a single apical bud, pubescent.
<emphasis id="B942E52FFF9DFF9BFC5AFD5C8135A5FD" bold="true" box="[982,1036,652,677]" pageId="4" pageNumber="163">Leaf</emphasis>
discolorous, chartaceous, blade 5.8– 14.7 ×
<quantity id="4CCE94D8FF9DFF9BFF55FD608463A591" box="[217,346,688,713]" metricMagnitude="-2" metricUnit="m" metricValue="3.25" metricValueMax="4.6" metricValueMin="1.9" pageId="4" pageNumber="163" unit="cm" value="3.25" valueMax="4.6" valueMin="1.9">1.9–4.6 cm</quantity>
, elliptic or oblong, apex caudate or acuminate, base atenuate or cuneate, margin plane, secondary veins 2.5–
<quantity id="4CCE94D8FF9DFF9BFF76FD048476A5B5" box="[250,335,724,749]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="4" pageNumber="163" unit="mm" value="0.4">0.4 mm</quantity>
apart, held at an angle of 70–75
<superScript id="7C439475FF9DFF9BFD3DFD028780A5B8" attach="left" box="[689,697,722,736]" fontSize="6" pageId="4" pageNumber="163">o</superScript>
relative to the midvein, marginal vein 0.5–1.0 mm from the margin, tertiary veins conspicuous; immature adaxial surface with scattered trichomes, glabrous at maturity, midvein sulcate in the first half and flat in the second half, secondary veins slightly prominent, pellucid dots inconspicuous, more than 15 per mm
<superScript id="7C439475FF9DFF9BFE8FFCEE8432A414" attach="left" box="[259,267,830,844]" fontSize="6" pageId="4" pageNumber="163">2</superScript>
; immature abaxial surface with scattered trichomes, glabrous at maturity, midvein prominent, secondary veins prominent, pellucid dots slightly conspicuous to conspicuous, less than 5 to more than 15 per mm
<superScript id="7C439475FF9DFF9BFA86FCB2802BA428" attach="left" box="[1290,1298,866,880]" fontSize="6" pageId="4" pageNumber="163">2</superScript>
; petiole 3–10 ×
<quantity id="4CCE94D8FF9DFF9BFF12FC5885C4A4F9" box="[158,253,904,929]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="4" pageNumber="163" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1–2 mm</quantity>
, canaliculate, pubescent or puberulent when immature, glabrescent to glabrous at maturity.
<emphasis id="B942E52FFF9DFF9BFB76FC588068A4F9" bold="true" box="[1274,1361,904,929]" pageId="4" pageNumber="163">Panicle</emphasis>
4.0–9.5 × 2.5–6.0 cm, pyramidal, terminal axillary or subterminal, 6–40 flowers, 1–4 branching at the base, rachis pubescent, first internode of central rachis
<quantity id="4CCE94D8FF9DFF9BFD88FC00875FA4B1" box="[516,614,976,1001]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="4" pageNumber="163" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1–2 mm</quantity>
wide, semicylindrical to flattened, distal internodes flattened, opposite branching, 2–5 times per node, epidermal protrusion present at the internodes, usually absent in apical branches.
<emphasis id="B942E52FFF9DFF9BFF04FBC885F2A369" bold="true" box="[136,203,1048,1073]" pageId="4" pageNumber="163">Bract</emphasis>
ca. 5 ×
<quantity id="4CCE94D8FF9DFF9BFEAFFBC884B8A369" box="[291,385,1048,1073]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="4" pageNumber="163" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1–2 mm</quantity>
, deciduous, lanceolate or ovate, concave, apex acuminate or acute, base truncate, puberulent on both sides.
<emphasis id="B942E52FFF9DFF9BFE84FBEC8467A30D" bold="true" box="[264,350,1084,1109]" pageId="4" pageNumber="163">Pedicel</emphasis>
<quantity id="4CCE94D8FF9DFF9BFEEAFBEC84EBA30D" box="[358,466,1084,1109]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" metricValueMax="10.0" metricValueMin="0.0" pageId="4" pageNumber="163" unit="mm" value="5.0" valueMax="10.0" valueMin="0.0">0–10 mm</quantity>
long, cylindrical (flattened at the apex when extended), pubescent.
<emphasis id="B942E52FFF9DFF9BFB43FBEC8078A30D" bold="true" box="[1231,1345,1084,1109]" pageId="4" pageNumber="163">Bracteole</emphasis>
ca. 3 ×
<quantity id="4CCE94D8FF9DFF9BFA11FBEC858FA321" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="4" pageNumber="163" unit="mm" value="1.0">1 mm</quantity>
, deciduous, lanceolate, concave, apex acuminate, base truncate, adaxial surface with scattered trichomes, abaxial surface pubescent or puberulent.
<emphasis id="B942E52FFF9DFF9BFE70FB548745A3C5" bold="true" box="[508,636,1156,1181]" pageId="4" pageNumber="163">Floral bud</emphasis>
5 ×
<quantity id="4CCE94D8FF9DFF9BFD23FB5487CAA3C5" box="[687,755,1156,1181]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="4" pageNumber="163" unit="mm" value="4.0">4 mm</quantity>
, turbinate.
<emphasis id="B942E52FFF9DFF9BFCFDFB548130A3C5" bold="true" box="[881,1033,1156,1181]" pageId="4" pageNumber="163">Hypanthium</emphasis>
extending
<quantity id="4CCE94D8FF9DFF9BFB0AFB5481E4A3C5" box="[1158,1245,1156,1181]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" pageId="4" pageNumber="163" unit="mm" value="1.2">1.2 mm</quantity>
above the summit of the ovary, not tearing at anthesis, externally pubescent, pellucid dots inconspicuous (covered by the indument) but covering the whole surface, internally glabrous; calyx 4-merous, lobes 1.2–2.8 ×
<quantity id="4CCE94D8FF9DFF9BFBDAFB1C81D8A3BD" box="[1110,1249,1228,1253]" metricMagnitude="-3" metricUnit="m" metricValue="2.0999999999999996" metricValueMax="2.8" metricValueMin="1.4" pageId="4" pageNumber="163" unit="mm" value="2.0999999999999996" valueMax="2.8" valueMin="1.4">1.4–2.8 mm</quantity>
, distinct from the hypanthium, external lobes smaller than internal ones, deciduous, depressed ovate or widely depressed ovate, concave, apex rounded, base truncate, externally puberulent, internally puberulent to glabrous; corolla 5-merous, petal white, 3.2 ×
<quantity id="4CCE94D8FF9DFF9BFF46FAE8841AA209" box="[202,291,1336,1361]" metricMagnitude="-3" metricUnit="m" metricValue="3.2" pageId="4" pageNumber="163" unit="mm" value="3.2">3.2 mm</quantity>
, very widely ovate, concave, apex rounded, base truncate, externally puberulent to glabrous, internally glabrous; staminal ring
<quantity id="4CCE94D8FF9DFF9BFE18FA8C84D4A22D" box="[404,493,1372,1397]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="4" pageNumber="163" unit="mm" value="0.4">0.4 mm</quantity>
, glabrous, stamens ca. 120, filament
<quantity id="4CCE94D8FF9DFF9BFC1EFA8C8123A22D" box="[914,1050,1372,1397]" metricMagnitude="-3" metricUnit="m" metricValue="5.4" metricValueMax="7.2" metricValueMin="3.6" pageId="4" pageNumber="163" unit="mm" value="5.4" valueMax="7.2" valueMin="3.6">3.6–7.2 mm</quantity>
long, white, glabrous, anther 0.16– 0.40 ×
<quantity id="4CCE94D8FF9DFF9BFF57FA5084BAA2C1" box="[219,387,1408,1433]" metricMagnitude="-4" metricUnit="m" metricValue="3.5999999999999996" metricValueMax="4.8" metricValueMin="2.4" pageId="4" pageNumber="163" unit="mm" value="0.36" valueMax="0.48" valueMin="0.24">0.24–0.48 mm</quantity>
, square, oblong or transversely oblong; ovary 1.0 ×
<quantity id="4CCE94D8FF9DFF9BFC6CFA508103A2C1" box="[992,1082,1408,1433]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" pageId="4" pageNumber="163" unit="mm" value="1.2">1.2 mm</quantity>
, 2-locular, each locule with two ovules, style
<quantity id="4CCE94D8FF9DFF9BFE97FA748448A2E5" box="[283,369,1444,1469]" metricMagnitude="-3" metricUnit="m" metricValue="8.4" pageId="4" pageNumber="163" unit="mm" value="8.4">8.4 mm</quantity>
long, glabrous, stigma punctiform, papillose.
<emphasis id="B942E52FFF9DFF9BFCF9FA74868AA2E5" bold="true" box="[885,947,1444,1469]" pageId="4" pageNumber="163">Fruit</emphasis>
green when immature, mature fruit not seen, 6–8 ×
<quantity id="4CCE94D8FF9DFF9BFF5DFA18842CA2B9" box="[209,277,1480,1505]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" pageId="4" pageNumber="163" unit="mm" value="7.0">7 mm</quantity>
, depressed globose or globose, base attenuate, glabrescent to glabrous, pellucid dots covering the whole surface, remnants of calyx lobes present or not; seeds not seen.
</paragraph>
</subSubSection>
<subSubSection id="C32C6AB6FF9DFF9BFF31F9C0814DA1E1" pageId="4" pageNumber="163" type="distribution">
<paragraph id="8B89393DFF9DFF9BFF31F9C086DDA1CD" blockId="4.[136,1452,472,2081]" pageId="4" pageNumber="163">
<emphasis id="B942E52FFF9DFF9BFF31F9C084DFA171" bold="true" box="[189,486,1552,1577]" pageId="4" pageNumber="163">Distribution and Habitat</emphasis>
:—
<taxonomicName id="4C3642BEFF9DFF9BFD85F9C087F0A171" authorityName="M. F. Santos" authorityYear="2015" box="[521,713,1552,1577]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="4" pageNumber="163" phylum="Tracheophyta" rank="species" species="attenuata">
<emphasis id="B942E52FFF9DFF9BFD85F9C087F0A171" box="[521,713,1552,1577]" italics="true" pageId="4" pageNumber="163">Myrcia attenuata</emphasis>
</taxonomicName>
occurs in rainforest in the eastern Guiana Shield (French Guiana). The three known records of the species indicate a relatively wide distribution in the region, as they come from the south, east and central part of French Guiana. The species is likely to also occur in
<collectingCountry id="F32179ADFF9DFF9BFBECF988819EA129" box="[1120,1191,1624,1649]" name="Brazil" pageId="4" pageNumber="163">Brazil</collectingCountry>
, as one of the records (
<emphasis id="B942E52FFF9DFF9BFF1DF9AC8406A1CD" box="[145,319,1660,1685]" italics="true" pageId="4" pageNumber="163">Oldeman T-650</emphasis>
) was made close to the border of
<collectingCountry id="F32179ADFF9DFF9BFD37F9AC87C6A1CD" box="[699,767,1660,1685]" name="Brazil" pageId="4" pageNumber="163">Brazil</collectingCountry>
and French Guiana.
</paragraph>
<paragraph id="8B89393DFF9DFF9BFF31F970814DA1E1" blockId="4.[136,1452,472,2081]" box="[189,1140,1696,1721]" pageId="4" pageNumber="163">
<emphasis id="B942E52FFF9DFF9BFF31F9708400A1E1" bold="true" box="[189,313,1696,1721]" pageId="4" pageNumber="163">Phenology</emphasis>
:—The species flowers in February and presents fruits from April to May.
</paragraph>
</subSubSection>
<subSubSection id="C32C6AB6FF9DFF9BFF31F9148425A035" pageId="4" pageNumber="163" type="etymology">
<paragraph id="8B89393DFF9DFF9BFF31F914878EA059" blockId="4.[136,1452,472,2081]" pageId="4" pageNumber="163">
<emphasis id="B942E52FFF9DFF9BFF31F9148407A185" bold="true" box="[189,318,1732,1757]" pageId="4" pageNumber="163">Etymology</emphasis>
:—The specific epithet refers to the fruit with an attenuate base, a very rare condition in the clade 7 (Lucas
<emphasis id="B942E52FFF9DFF9BFF57F9388435A059" box="[219,268,1768,1793]" italics="true" pageId="4" pageNumber="163">et al</emphasis>
. 2011), to which this species belongs.
</paragraph>
<paragraph id="8B89393DFF9DFF9BFF31F8DC8425A035" blockId="4.[136,1452,472,2081]" pageId="4" pageNumber="163">
<emphasis id="B942E52FFF9DFF9BFF31F8DC8490A07D" bold="true" box="[189,425,1804,1829]" pageId="4" pageNumber="163">Conservation status</emphasis>
:—The species probably has a wider distribution than the three known records (see discussion above). More data is required on which to base a precise category, so we consider this species as “Data Deficient” (DD;
<bibRefCitation id="EFA744CCFF9DFF9BFF04F8848436A035" author="IUCN" box="[136,271,1876,1901]" pageId="4" pageNumber="163" refId="ref9686" refString="IUCN. (2001) IUCN Red List Categories and Criteria, Version 3.1. Prepared by the IUCN Species Survival Commission. IUCN, Gland and Cambridge." type="book" year="2001">IUCN 2001</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C32C6AB6FF9DFF99FF31F8A88700A785" lastPageId="6" lastPageNumber="165" pageId="4" pageNumber="163" type="discussion">
<paragraph id="8B89393DFF9DFF9AFF31F8A880BAA785" blockId="4.[136,1452,472,2081]" lastBlockId="5.[136,1451,160,221]" lastPageId="5" lastPageNumber="164" pageId="4" pageNumber="163">
<emphasis id="B942E52FFF9DFF9BFF31F8A88402A0C9" bold="true" box="[189,315,1912,1937]" pageId="4" pageNumber="163">Discussion</emphasis>
:—
<taxonomicName id="4C3642BEFF9DFF9BFED3F8A8871BA0C9" authorityName="M. F. Santos" authorityYear="2015" box="[351,546,1912,1937]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="4" pageNumber="163" phylum="Tracheophyta" rank="species" species="attenuata">
<emphasis id="B942E52FFF9DFF9BFED3F8A8871BA0C9" box="[351,546,1912,1937]" italics="true" pageId="4" pageNumber="163">Myrcia attenuata</emphasis>
</taxonomicName>
was not included in the phylogenetic study of the clade 7 (
<bibRefCitation id="EFA744CCFF9DFF9BFB45F8A88063A0C9" author="Santos, M. F." box="[1225,1370,1912,1937]" pageId="4" pageNumber="163" refId="ref10218" refString="Santos, M. F. (2014) Biogeografia de Myrcia s. l., taxonomia e filogenia do clado Sympodiomyrcia (Myrtaceae). PhD thesis. Universidade de Sao Paulo, Sao Paulo, 310 pp." type="book" year="2014">Santos 2014</bibRefCitation>
), but it bears many diagnostic characters of the group: sympodial branching, presence of cataphylls, inflorescences sympodially branching at the base, the hypanthium not tearing after anthesis and free and deciduous calyx lobes. This species is morphologically similar to
<taxonomicName id="4C3642BEFF9DFF9BFE6CF83487B3A0A5" authorityName="Kiaerskou" authorityYear="1893" box="[480,650,2020,2045]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="4" pageNumber="163" phylum="Tracheophyta" rank="species" species="bicolor">
<emphasis id="B942E52FFF9DFF9BFE6CF83487B3A0A5" box="[480,650,2020,2045]" italics="true" pageId="4" pageNumber="163">Myrcia bicolor</emphasis>
</taxonomicName>
differing as stated above by its keeled branches, mixed terminal and subterminal inflorescences, turbinate flower buds and fruit with attenuate base. The small number of collections does not allow confirming the typical branching pattern of
<taxonomicName id="4C3642BEFF9CFF9AFD6BFF70864EA7E1" authorityName="M. F. Santos" authorityYear="2015" box="[743,887,160,185]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="164" phylum="Tracheophyta" rank="species" species="attenuata">
<emphasis id="B942E52FFF9CFF9AFD6BFF70864EA7E1" box="[743,887,160,185]" italics="true" pageId="5" pageNumber="164">M. attenuata</emphasis>
</taxonomicName>
(monopodial or sympodial). The label of the
<typeStatus id="548D879FFF9CFF9AFAF7FF708092A7E1" box="[1403,1451,160,185]" pageId="5" pageNumber="164">type</typeStatus>
collection cites duplicates at the herbaria MG, NY and P, however these were not located within these collections.
</paragraph>
<caption id="DF4969B5FF9CFF9AFF04F8BD8118A0B6" ID-DOI="http://doi.org/10.5281/zenodo.13632909" ID-Zenodo-Dep="13632909" httpUri="https://zenodo.org/record/13632909/files/figure.png" pageId="5" pageNumber="164" startId="5.[136,229,1901,1922]" targetBox="[180,1381,305,1865]" targetPageId="5" targetType="figure">
<paragraph id="8B89393DFF9CFF9AFF04F8BD8118A0B6" blockId="5.[136,1452,1900,2030]" pageId="5" pageNumber="164">
<emphasis id="B942E52FFF9CFF9AFF04F8BD8494A0DA" bold="true" box="[136,429,1900,1922]" pageId="5" pageNumber="164">
FIGURE 3.
<taxonomicName id="4C3642BEFF9CFF9AFE8FF8BC8494A0DA" authorityName="M. F. Santos" authorityYear="2015" box="[259,429,1900,1922]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="164" phylum="Tracheophyta" rank="species" species="attenuata">
<emphasis id="B942E52FFF9CFF9AFE8FF8BC8494A0DA" bold="true" box="[259,429,1900,1922]" italics="true" pageId="5" pageNumber="164">Myrcia attenuata</emphasis>
</taxonomicName>
</emphasis>
. A. habit. B. detail of keeled twig. C. flower at anthesis. D. fruit with attenuate base and remnants of calyx lobes.
<taxonomicName id="4C3642BEFF9CFF9AFF4AF8408466A0FD" authorityName="M. F. Santos" authorityYear="2015" box="[198,351,1936,1957]" class="Magnoliopsida" family="Myrtaceae" genus="Myrcia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="164" phylum="Tracheophyta" rank="species" species="costeira">
<emphasis id="B942E52FFF9CFF9AFF4AF8408466A0FD" bold="true" box="[198,351,1936,1957]" italics="true" pageId="5" pageNumber="164">Myrcia costeira</emphasis>
</taxonomicName>
. E. habit. F. detail of keeled twig. G. detail of inflorescence with opposite branching and terminal dichasia. H. floral bud. I. longitudinal section of ovary showing two locules. J. fruit without calyx lobe remnants. Vouchers: A.
<emphasis id="B942E52FFF9CFF9AFB1EF865801AA092" box="[1170,1315,1973,1994]" italics="true" pageId="5" pageNumber="164">Granville 6503</emphasis>
(U); B and D.
<emphasis id="B942E52FFF9CFF9AFF04F8098424A0B6" box="[136,285,2009,2030]" italics="true" pageId="5" pageNumber="164">Oldeman T-650</emphasis>
(P); C.
<emphasis id="B942E52FFF9CFF9AFEE6F80984C5A0B6" box="[362,508,2009,2030]" italics="true" pageId="5" pageNumber="164">Granville 6503</emphasis>
(B); E–I.
<emphasis id="B942E52FFF9CFF9AFDD1F809862BA0B6" box="[605,786,2009,2030]" italics="true" pageId="5" pageNumber="164">Hatschbach 31837</emphasis>
(SP); J.
<emphasis id="B942E52FFF9CFF9AFCE8F80986E5A0B6" box="[868,988,2009,2030]" italics="true" pageId="5" pageNumber="164">Barros 1848</emphasis>
(SPF).
</paragraph>
</caption>
<paragraph id="8B89393DFF9FFF99FF31FF708092A7E1" blockId="6.[136,1451,160,221]" box="[189,1451,160,185]" pageId="6" pageNumber="165">
<emphasis id="B942E52FFF9FFF99FF31FF70840CA7E1" bold="true" box="[189,309,160,185]" pageId="6" pageNumber="165">
<typeStatus id="548D879FFF9FFF99FF31FF70840CA7E1" box="[189,309,160,185]" pageId="6" pageNumber="165" type="paratype">Paratypes</typeStatus>
</emphasis>
:—
<collectingCountry id="F32179ADFF9FFF99FED9FF70877BA7E1" box="[341,578,160,185]" name="French Guiana" pageId="6" pageNumber="165">FRENCH GUIANA</collectingCountry>
. Fleuve Oyapock,
<date id="FF881FFDFF9FFF99FC9AFF7086A6A7E1" box="[790,927,160,185]" pageId="6" pageNumber="165" value="1970-05-05">5 May 1970</date>
(fr.),
<emphasis id="B942E52FFF9FFF99FC6EFF7081A8A7E1" box="[994,1169,160,185]" italics="true" pageId="6" pageNumber="165">Oldeman T-650</emphasis>
(K!). Riviere Tampok, 3
</paragraph>
<paragraph id="8B89393DFF9FFF99FF04FF148700A785" blockId="6.[136,1451,160,221]" box="[136,569,196,221]" pageId="6" pageNumber="165">
April 1977 (fr.),
<emphasis id="B942E52FFF9FFF99FECEFF1484FFA785" box="[322,454,196,221]" italics="true" pageId="6" pageNumber="165">Moretti 686</emphasis>
(MICH!).
</paragraph>
</subSubSection>
</treatment>
</document>
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