176 lines
18 KiB
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176 lines
18 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.19.4098" ID-PMC="PMC3597002" ID-Pensoft-Pub="1314-2003-19-31" ID-Pensoft-UUID="FFBDFFE13B62FFA81373FFBB967CFFAF" ID-PubMed="23717189" ID-Zenodo-Dep="576153" ModsDocID="1314-2003-19-31" checkinTime="1451251957823" checkinUser="pensoft" docAuthor="Snow, Neil" docDate="2012" docId="01634A47D85900AE1633E4A730DD4C78" docLanguage="en" docName="PhytoKeys 19: 31-49" docOrigin="PhytoKeys 19" docPubDate="2012-12-28" docSource="http://dx.doi.org/10.3897/phytokeys.19.4098" docTitle="Rhodamnia daymanensis N. Snow 2012, sp. nov." docType="treatment" docVersion="6" id="FFBDFFE13B62FFA81373FFBB967CFFAF" lastPageNumber="35" masterDocId="FFBDFFE13B62FFA81373FFBB967CFFAF" masterDocTitle="Five new species of Rhodamnia (Myrtaceae, Myrteae) from New Guinea" masterLastPageNumber="49" masterPageNumber="31" pageNumber="34" updateTime="1668140689891" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Five new species of Rhodamnia (Myrtaceae, Myrteae) from New Guinea</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Snow, Neil</mods:namePart>
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<mods:affiliation>Herbarium Pacificum, Bishop Museum, 1525 Bernice St., Honolulu, HI 96821 USA & 527 S. Oakes St, Helena, MT 59601 USA</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2012</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2012-12-28</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>19</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>31</mods:start>
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<mods:end>49</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.19.4098</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.19.4098</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-19-31</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FFBDFFE13B62FFA81373FFBB967CFFAF</mods:identifier>
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<mods:identifier type="Zenodo-Dep">576153</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152024473" LSID="urn:lsid:plazi:treatment:01634A47D85900AE1633E4A730DD4C78" httpUri="http://treatment.plazi.org/id/01634A47D85900AE1633E4A730DD4C78" lastPageId="4" lastPageNumber="35" pageId="3" pageNumber="34">
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<subSubSection pageId="3" pageNumber="34" type="nomenclature">
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<paragraph pageId="3" pageNumber="34">
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<taxonomicName LSID="01634A47-D859-00AE-1633-E4A730DD4C78" authority="N. Snow" authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Rhodamnia daymanensis" order="Myrtales" pageId="3" pageNumber="34" phylum="Tracheophyta" rank="species" species="daymanensis" status="sp. nov.">Rhodamnia daymanensis N. Snow</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="34">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Island of New Guinea, showing localities of new species. Triangle (▲) = Rhodamnia asekiensis; Square (■) = Rhodamnia daymanensis; Diamond (◆) = Rhodamnia makumak (at bottom of line); Closed circle (⚫) = Rhodamnia toratot (at top of line); Inverted triangle (▼) = Rhodamnia waigeoensis (upper left, at bottom of line); Open circles (⚪) = Rhodamnia sharpeana (left end of line [upper] and bottom of line [lower, on truncated eastern half of Tagula Island])." httpUri="https://binary.pensoft.net/fig/10217" pageId="3" pageNumber="34">Figures 1</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Rhodamnia daymanensis N. Snow. Photo of the holotype at A (L. J. Brass 22718)." httpUri="https://binary.pensoft.net/fig/10219" pageId="3" pageNumber="34">3</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="latin">
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<paragraph pageId="3" pageNumber="34">
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<emphasis italics="true" pageId="3" pageNumber="34">Resembling</emphasis>
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Rhodamnia lancifolia
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<emphasis italics="true" pageId="3" pageNumber="34">but differing by its more deeply sulcate petiole, broader leaves, and shorter yellowish indumentum on the abaxial laminar surface</emphasis>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="34" type="type">
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<paragraph pageId="3" pageNumber="34">Type.</paragraph>
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<paragraph pageId="3" pageNumber="34">
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PapUa New Guinea. Milne Bay District, north slopes of Mt. Dayman, Maneau Range, 2250 m, ca.
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<geoCoordinate degrees="9" direction="south" minutes="47" orientation="latitude" precision="925" value="-9.783334">9°47'S</geoCoordinate>
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,
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<geoCoordinate degrees="149" direction="east" minutes="18" orientation="longitude" precision="925" value="149.3">149°18'E</geoCoordinate>
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, 2 Jun 1953, L. J. Brass 22718 (holotype: A!; isotype: L!)
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="35" pageId="3" pageNumber="34" type="description">
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<paragraph pageId="3" pageNumber="34">Description.</paragraph>
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<paragraph lastPageId="4" lastPageNumber="35" pageId="3" pageNumber="34">
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Trees 15-18 m. Indumentum (branchlets, inflorescence axis, flowers) densely appressed sericeous or sericeous-villous (trichomes yellowish). Branchlets terete to compressed, brown (dried), epidermis smooth, becoming flakey or scaly, sericeous-villous. Leaves opposite, evenly distributed along branchlets, strongly discolorous, internodes 1-3 cm long; venation perfect basal acrodromous, secondary and tertiary veins visible above and below; intramarginal vein closely paralleling leaf margin, 0.5-0.7 mm from margin at midpoint of blade. Colleters absent. Petioles 5-9 mm long, slightly sulcate throughout. Leaf blades 3.8-7.0 cm long, (1.1-)1.5-3.0(-3.5) cm wide, elliptic (rarely broadly elliptic), base cuneate, apex narrowly acuminate, tip acute and somewhat falcate; adaxial surface matte, sericeous but becoming glabrescent, midvein slightly sulcate in proximal half but more or less flush distally; abaxial surface densely sericeous between the secondary and tertiary veins, midvein projecting throughout, oil glands (if present) entirely obscured by indumentum. Inflorescence axillary, flowers solitary (=monads) or in 3-flowered cymes (=botryoids), solitary to paired or fascicled in axils, pedicels of monads up to 1-5 mm long, rigid and ascending. Bracteoles 1.5-3.0 mm long, less than 0.5 mm wide at base, linear, mostly erect or ascending, mostly persistent in flower. Hypanthium 2.5-3.3 mm long, ca. 2.5 mm wide at base of calyx lobes, cupulate, densely hairy. Caly
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<pageBreakToken pageId="4" pageNumber="35" start="start">x</pageBreakToken>
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lobes 2.7-3.0 mm long, broadly obtuse, glabrescent adaxially, densely sericeous abaxially. Petals 5.5-7.0 mm long, 3.0-3.5 mm wide, ovate to narrowly ovate, whitish, mostly glabrous adaxially, densely sericeous abaxially, oil glands common. Stamens 65-75, multiseriate; staminal disk short-hairy; filaments 2-3 mm long; anther sacs 0.3-0.5 mm long, globose to subcylindrical, sub-basifixed or basifixed, crowned by a single large apical gland. Style ca. 4.5 mm long, glabrous; stigma narrow to slightly capitate, prominently papillose. Ovary and locule 1, placentas 2, linear, ovules disposed in regular rows.
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</paragraph>
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<caption httpUri="https://binary.pensoft.net/fig/10219" pageId="4" pageNumber="35" start="Figure 3" startId="F3">
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<paragraph pageId="4" pageNumber="35">
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<emphasis bold="true" pageId="4" pageNumber="35">Figure 3.</emphasis>
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<taxonomicName authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="daymanensis">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia daymanensis</emphasis>
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</taxonomicName>
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N. Snow. Photo of the holotype at A (
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<emphasis italics="true" pageId="4" pageNumber="35">L. J. Brass 22718</emphasis>
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).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="35" type="phenology">
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<paragraph pageId="4" pageNumber="35">Phenology.</paragraph>
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<paragraph pageId="4" pageNumber="35">Flowering in June; fruiting interval unknown.</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="35" type="distribution">
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<paragraph pageId="4" pageNumber="35">Distribution.</paragraph>
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<paragraph pageId="4" pageNumber="35">
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Papua New Guinea, Milne Bay Province, north slopes of Mt. Dayman in the Maneau Range; mossy forest of ridge crests over metamorphic rocks (see
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<bibRefCitation author="Davies, HL" journalOrPublisher="Proceedings of the National Academy of Sciences (USA)" pageId="12" pageNumber="43" refId="B4" refString="Davies, HL, 1980. Folded thrust fault and associated metamorphics in the Suckling-Dayman Massif, Papua New Guinea. American Journal of Science 280-A: 171-191." title="Folded thrust fault and associated metamorphics in the Suckling-Dayman Massif, Papua New Guinea. American Journal of Science 280 - A: 171 - 191." year="1980">Davies 1980</bibRefCitation>
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;
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<bibRefCitation author="Daczko, NR" journalOrPublisher="Proceedings of the National Academy of Sciences (USA)" pageId="12" pageNumber="43" publicationUrl="10.1111/j.1525-1314.2009.00825.x" refId="B3" refString="Daczko, NR, Caffi, P, Halpin, JA, Mann, P, 2009. Exhumation of the Dayman dome metamorphic core complex, eastern Papua New Guinea. Journal of Metamorphic Geology 27: 405-422. ., 10.1111/j.1525-1314.2009.00825.x" title="Exhumation of the Dayman dome metamorphic core complex, eastern Papua New Guinea. Journal of Metamorphic Geology 27: 405 - 422." url="10.1111/j.1525-1314.2009.00825.x" year="2009">Daczko et al. 2009</bibRefCitation>
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) at ca. 2250 meters.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="35" type="conservation status">
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<paragraph pageId="4" pageNumber="35">Conservation status.</paragraph>
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<paragraph pageId="4" pageNumber="35">Data Deficient. The collection label indicates the species was common (at least locally) at the time of its collection in 1953. However, the absence of additional collections over the past sixty years suggests that Threatened might more accurately reflect its true status.</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="35" type="comments">
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<paragraph pageId="4" pageNumber="35">Comments.</paragraph>
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<paragraph pageId="4" pageNumber="35">
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<taxonomicName authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="daymanensis">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia daymanensis</emphasis>
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</taxonomicName>
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appears to be part of the
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<normalizedToken originalValue="“pearly”">"pearly"</normalizedToken>
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group (
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<bibRefCitation author="Snow, N" journalOrPublisher="Systematic Botany Monographs" pageId="12" pageNumber="43" pagination="1 - 69" refId="B14" refString="Snow, N, 2007. Systematics of the Australian species of Rhodamnia (Myrtaceae). Systematic Botany Monographs 82: 1 - 69" title="Systematics of the Australian species of Rhodamnia (Myrtaceae)." volume="82" year="2007">Snow 2007</bibRefCitation>
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) by virtue of its abaxial indumentum.
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<bibRefCitation author="Scott, AJ" journalOrPublisher="Kew Bulletin" pageId="12" pageNumber="43" pagination="429 - 459" publicationUrl="10.2307/4110145" refId="B11" refString="Scott, AJ, 1979. A revision of Rhodamnia (Myrtaceae). Kew Bulletin 33: 429 - 459, 10.2307/4110145" title="A revision of Rhodamnia (Myrtaceae)." url="10.2307/4110145" volume="33" year="1979">Scott (1979)</bibRefCitation>
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included this specimen in
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<taxonomicName class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="blairiana">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia blairiana</emphasis>
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</taxonomicName>
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var.
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<emphasis italics="true" pageId="4" pageNumber="35">propinqua</emphasis>
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(C.T. White) A.J. Scott.
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</paragraph>
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<paragraph pageId="4" pageNumber="35">
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Among the species of
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<taxonomicName authorityName="Jack" authorityYear="1822" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia</emphasis>
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</taxonomicName>
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in New Guinea occurring at elevations above 2000 meters with a similar abaxial indumentum,
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<taxonomicName authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="daymanensis">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia daymanensis</emphasis>
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</taxonomicName>
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mostly closely resembles
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<taxonomicName authorityName="A. J. Scott" authorityYear="1979" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="lancifolia">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia lancifolia</emphasis>
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</taxonomicName>
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. The type collection of
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<taxonomicName authorityName="A. J. Scott" authorityYear="1979" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="lancifolia">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia lancifolia</emphasis>
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</taxonomicName>
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(2425 m) is approximately 25 km west of the type locality of
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<taxonomicName authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="daymanensis">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia daymanensis</emphasis>
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</taxonomicName>
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(2250 m) in similar habitats. However,
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<taxonomicName authorityName="A. J. Scott" authorityYear="1979" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="lancifolia">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia lancifolia</emphasis>
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</taxonomicName>
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differs by its more narrowly elliptic leaves, a less pronounced petiolar sulcus, slightly impressed adaxial laminar midvein (vs. more deeply impressed in
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<taxonomicName authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="daymanensis">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia daymanensis</emphasis>
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</taxonomicName>
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in the proximal half), and the more yellowish (and longer, on average) abaxial laminar indumentum. The adaxial leaf surface of
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<taxonomicName authorityName="A. J. Scott" authorityYear="1979" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="lancifolia">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia lancifolia</emphasis>
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</taxonomicName>
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, for which there are many collections,is nearly black when dried, which contrasts with the fucosus (dark greyish brown,
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<bibRefCitation author="Beentje, HJ" journalOrPublisher="Proceedings of the National Academy of Sciences (USA)" pageId="12" pageNumber="43" refId="B2" refString="Beentje, HJ, 2010. The Kew Plant Glossary: An Illustrated Dictionary of Plant Identification terms. Royal Botanic Gardens, Kew." title="The Kew Plant Glossary: An Illustrated Dictionary of Plant Identification terms. Royal Botanic Gardens, Kew." year="2010">Beentje 2010</bibRefCitation>
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) dried color of
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<taxonomicName authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="daymanensis">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia daymanensis</emphasis>
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</taxonomicName>
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. The flowers (presumably hypanthium and abaxial surfaces of calyx lobes and petals) of
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<taxonomicName authorityName="A. J. Scott" authorityYear="1979" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="lancifolia">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia lancifolia</emphasis>
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</taxonomicName>
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have a brownish-pinkish indumentum (Stevens & Veldkamp LAE 55582; isotype [L!]), whereas the floral indumentum of
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<taxonomicName authorityName="N. Snow" authorityYear="2012" class="Magnoliopsida" family="Myrtaceae" genus="Rhodamnia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Myrtales" pageId="4" pageNumber="35" phylum="Tracheophyta" rank="species" species="daymanensis">
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<emphasis italics="true" pageId="4" pageNumber="35">Rhodamnia daymanensis</emphasis>
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</taxonomicName>
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is mostly distinctly yellowish.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |