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<document ID-DOI="10.11646/phytotaxa.581.1.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="7571550" approvalRequired="50" approvalRequired_for_taxonomicNames="15" approvalRequired_for_textStreams="30" approvalRequired_for_treatments="5" checkinTime="1674712547726" checkinUser="plazi" docAuthor="Dang, Van-Son &amp; Naiki, Akiyo" docDate="2023" docId="43284262FF18FF545AB6F83640C1CDB5" docLanguage="en" docName="phytotaxa.581.1.1.pdf" docOrigin="Phytotaxa 581 (1)" docSource="http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN" docStyle="DocumentStyle:F08184CE06D8A97EA3E6DE35D99648B0.1:Phytotaxa.2014-.monograph" docStyleId="F08184CE06D8A97EA3E6DE35D99648B0" docStyleName="Phytotaxa.2014-.monograph" docStyleVersion="1" docTitle="Lasianthus vietnamensis V. S. Dang, Naiki &amp; Tagane 2021" docType="treatment" docVersion="2" lastPageNumber="1935" masterDocId="BF113A1AFF9FFFDE5A3EFFA54026CC48" masterDocTitle="A revision of the genus Lasianthus Jack (Rubiaceae) from Vietnam" masterLastPageNumber="1935" masterPageNumber="1921" pageNumber="1921" updateTime="1674713874756" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>A revision of the genus Lasianthus Jack (Rubiaceae) from Vietnam</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Dang, Van-Son</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0001-8681-4141</mods:nameIdentifier>
<mods:affiliation>Iriomote Station, Tropical Biosphere Research Center, University of the Ryukyus, 870 Uehara, Taketomi-cho, Yaeyama-gun, Okinawa, 907 - 1541 Japan. &amp; Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, Vietnam. &amp; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam. &amp; dvsonitb @ gmail. com; https: // orcid. org / 0000 - 0001 - 8681 - 4141</mods:affiliation>
<mods:nameIdentifier type="email">dvsonitb@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Naiki, Akiyo</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-3235-2823</mods:nameIdentifier>
<mods:affiliation>Iriomote Station, Tropical Biosphere Research Center, University of the Ryukyus, 870 Uehara, Taketomi-cho, Yaeyama-gun, Okinawa, 907 - 1541 Japan. &amp; Iriomote Station, Tropical Biosphere Research Center, University of the Ryukyus, 870 Uehara, Taketomi-cho, Yaeyama-gun, Okinawa, 907 - 1541 Japan. &amp; naiki @ lab. u-ryukyu. ac. jp; https: // orcid. org / 0000 - 0002 - 3235 - 2823 * Author for correspondence</mods:affiliation>
<mods:nameIdentifier type="email">naiki@lab.u-ryukyu.ac.jp</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Phytotaxa</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2023</mods:date>
<mods:detail type="pubDate">
<mods:number>2023-01-26</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>581</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>1</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1921</mods:start>
<mods:end>1935</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">10.11646/phytotaxa.581.1.1</mods:identifier>
<mods:identifier type="ISSN">1179-3163</mods:identifier>
<mods:identifier type="Zenodo-Dep">7571550</mods:identifier>
</mods:mods>
<treatment ID-DOI="http://doi.org/10.5281/zenodo.7571898" ID-Zenodo-Dep="7571898" LSID="urn:lsid:plazi:treatment:43284262FF18FF545AB6F83640C1CDB5" httpUri="http://treatment.plazi.org/id/43284262FF18FF545AB6F83640C1CDB5" lastPageId="138" pageId="135">
<subSubSection box="[136,1277,1939,1966]" pageId="135" type="nomenclature">
<paragraph blockId="135.[136,1452,1939,2073]" box="[136,1277,1939,1966]" pageId="135">
<emphasis bold="true" box="[136,171,1939,1966]" pageId="135">71.</emphasis>
<taxonomicName authority="V. S. Dang, Naiki &amp; Tagane (2021: 50)" authorityName="V. S. Dang, Naiki &amp; Tagane" authorityPageNumber="50" authorityYear="2021" box="[178,893,1939,1966]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="135" phylum="Tracheophyta" rank="species" species="vietnamensis">
<emphasis bold="true" box="[178,463,1939,1966]" italics="true" pageId="135">Lasianthus vietnamensis</emphasis>
V.S.Dang, Naiki &amp; Tagane (2021: 50)
</taxonomicName>
<figureCitation box="[924,1015,1939,1966]" captionStart="FIGURE 103" captionStartId="136.[136,229,1776,1798]" captionTargetBox="[165,1417,194,1750]" captionTargetId="figure-24@136.[164,1420,193,1752]" captionTargetPageId="136" captionText="FIGURE 103. Lasianthus vietnamensis V.S.Dang, Naiki &amp; Tagane (from V6668, VNM): A. Branch with flower buds, B. Close-up of expanding young leaves, C. Stipules, D.Abaxial leaf surfaces, EG. Inflorescence showing side view calyxes, H. Fruits, I. Seeds (A, DF, H: photos by Shuichiro Tagane)." figureDoi="http://doi.org/10.5281/zenodo.7571868" httpUri="https://zenodo.org/record/7571868/files/figure.png" pageId="135">Fig. 103</figureCitation>
(plate),
<figureCitation box="[1109,1203,1940,1966]" captionStart="FIGURE 104" captionStartId="137.[136,229,1819,1841]" captionTargetBox="[177,1407,205,1770]" captionTargetId="figure-18@137.[165,1419,193,1796]" captionTargetPageId="137" captionText="FIGURE 104. Distribution maps of Lasianthus vietnamensis, L. viridiramulis, L. vuquangensis, L. yaharae and L. yersinii." figureDoi="http://doi.org/10.5281/zenodo.7571872" httpUri="https://zenodo.org/record/7571872/files/figure.png" pageId="135">Fig. 104</figureCitation>
(map)
</paragraph>
</subSubSection>
<subSubSection lastPageId="137" pageId="135" type="materials_examined">
<paragraph blockId="135.[136,1452,1939,2073]" pageId="135">
<emphasis bold="true" box="[136,194,1979,2000]" pageId="135">Type:</emphasis>
<materialsCitation box="[219,1451,1979,2001]" collectingDate="2017-02-14" collectorName="Tagane S. &amp; Nagamasu H. &amp; Nguyen" country="Vietnam" elevation="1365" location="Ngoc Linh Nature Reserve" pageId="135" specimenCount="1" stateProvince="Kon Tum">
<collectingCountry box="[219,332,1979,2000]" name="Vietnam" pageId="135">VIETNAM</collectingCountry>
.
<collectingRegion box="[341,527,1979,2001]" country="Vietnam" name="Kon Tum" pageId="135">Kon Tum Province</collectingRegion>
,
<location LSID="urn:lsid:plazi:treatment:43284262FF18FF545AB6F83640C1CDB5:CE5EA5AFFF18FF595827F8194338CB99" box="[537,798,1979,2001]" country="Vietnam" name="Ngoc Linh Nature Reserve" pageId="135" stateProvince="Kon Tum">Ngoc Linh Nature Reserve</location>
,
<quantity box="[808,881,1979,2001]" metricMagnitude="3" metricUnit="m" metricValue="1.365" pageId="135" unit="m" value="1365.0">
<elevation box="[808,881,1979,2001]" metricMagnitude="3" metricUnit="m" metricValue="1.365" pageId="135" unit="m" value="1365.0">1365 m</elevation>
</quantity>
elev.,
<date box="[944,1117,1979,2001]" pageId="135" value="2017-02-14">
<collectingDate box="[944,1117,1979,2001]" pageId="135" value="2017-02-14">14 February 2017</collectingDate>
</date>
,
<emphasis box="[1127,1451,1980,2001]" italics="true" pageId="135">
<collectorName box="[1127,1223,1980,2001]" pageId="135">Tagane S.</collectorName>
,
<collectorName box="[1233,1369,1980,2001]" pageId="135">Nagamasu H.</collectorName>
,
<collectorName box="[1378,1451,1980,2001]" pageId="135">Nguyen</collectorName>
</emphasis>
</materialsCitation>
<materialsCitation collectionCode="VNM, DLU, FU" collectorName="Hoang T. B. &amp; Hoang T. S. &amp; Yang C. J. &amp; Kawakubo A. V" country="Japan" location="Iriomote Station" pageId="135" specimenCode="VNM00042945" specimenCount="1" typeStatus="holotype">
<emphasis box="[189,770,2015,2037]" italics="true" pageId="135">
<taxonomicNameLabel box="[189,232,2016,2037]" pageId="135" rank="variety">V.N.</taxonomicNameLabel>
,
<collectorName box="[240,351,2016,2037]" pageId="135">Hoang T.B.</collectorName>
,
<collectorName box="[358,466,2016,2037]" pageId="135">Hoang T.S.</collectorName>
,
<collectorName box="[474,567,2016,2037]" pageId="135">Yang C.J.</collectorName>
,
<collectorName box="[575,722,2015,2037]" pageId="135">Kawakubo A. V</collectorName>
6668
</emphasis>
(
<typeStatus box="[781,867,2015,2037]" pageId="135">holotype</typeStatus>
<collectionCode box="[871,932,2015,2036]" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="135" type="Herbarium">VNM</collectionCode>
! [
<specimenCode box="[945,1105,2015,2037]" collectionCode="VNM" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="135" type="Herbarium">VNM00042945</specimenCode>
]; isotypes
<collectionCode box="[1202,1258,2015,2036]" pageId="135">DLU</collectionCode>
!,
<collectionCode box="[1270,1307,2015,2036]" country="China" name="Fudan University, Department of Biology" pageId="135">FU</collectionCode>
!, the herbarium of
<location LSID="urn:lsid:plazi:treatment:43284262FF18FF545AB6F83640C1CDB5:CE5EA5AFFF18FF595AE9F7A64152C451" box="[215,372,2051,2073]" country="Japan" name="Iriomote Station" pageId="135">Iriomote Station</location>
(
<collectingCountry box="[385,444,2051,2072]" name="Japan" pageId="135">Japan</collectingCountry>
))
</materialsCitation>
.
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7571868" ID-Zenodo-Dep="7571868" httpUri="https://zenodo.org/record/7571868/files/figure.png" pageId="136" startId="136.[136,229,1776,1798]" targetBox="[165,1417,194,1750]" targetPageId="136">
<paragraph blockId="136.[136,1451,1776,1870]" pageId="136">
<emphasis bold="true" box="[136,279,1776,1798]" pageId="136">FIGURE 103.</emphasis>
<taxonomicName authority="V. S. Dang, Naiki &amp; Tagane" authorityName="V. S. Dang, Naiki &amp; Tagane" box="[287,793,1776,1798]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="136" phylum="Tracheophyta" rank="species" species="vietnamensis">
<emphasis box="[287,524,1776,1798]" italics="true" pageId="136">Lasianthus vietnamensis</emphasis>
V.S.Dang, Naiki &amp; Tagane
</taxonomicName>
(from
<emphasis box="[864,927,1776,1797]" italics="true" pageId="136">V6668</emphasis>
, VNM):
<emphasis bold="true" box="[1018,1042,1776,1797]" pageId="136">A.</emphasis>
Branch with flower buds,
<emphasis bold="true" box="[1307,1329,1776,1797]" pageId="136">B.</emphasis>
Close-up of expanding young leaves,
<emphasis bold="true" box="[377,400,1812,1834]" pageId="136">C.</emphasis>
Stipules,
<emphasis bold="true" box="[493,517,1812,1833]" pageId="136">D.</emphasis>
Abaxial leaf surfaces,
<emphasis bold="true" box="[731,784,1812,1834]" pageId="136">EG.</emphasis>
Inflorescence showing side view calyxes,
<emphasis bold="true" box="[1187,1213,1812,1833]" pageId="136">H.</emphasis>
Fruits,
<emphasis bold="true" box="[1284,1299,1812,1833]" pageId="136">I.</emphasis>
Seeds (
<emphasis bold="true" box="[1373,1390,1812,1833]" pageId="136">A</emphasis>
,
<emphasis bold="true" box="[1401,1446,1812,1834]" pageId="136">DF</emphasis>
,
<emphasis bold="true" box="[136,155,1848,1869]" pageId="136">H</emphasis>
: photos by Shuichiro Tagane).
</paragraph>
</caption>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7571872" ID-Zenodo-Dep="7571872" box="[136,1321,1819,1842]" httpUri="https://zenodo.org/record/7571872/files/figure.png" pageId="137" startId="137.[136,229,1819,1841]" targetBox="[177,1407,205,1770]" targetPageId="137">
<paragraph blockId="137.[136,1321,1819,1842]" box="[136,1321,1819,1842]" pageId="137">
<emphasis bold="true" box="[136,277,1819,1841]" pageId="137">FIGURE 104.</emphasis>
Distribution maps of
<taxonomicName box="[488,723,1820,1841]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="137" phylum="Tracheophyta" rank="species" species="vietnamensis">
<emphasis box="[488,723,1820,1841]" italics="true" pageId="137">Lasianthus vietnamensis</emphasis>
</taxonomicName>
,
<taxonomicName box="[735,886,1820,1841]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="137" phylum="Tracheophyta" rank="species" species="viridiramulis">
<emphasis box="[735,886,1820,1841]" italics="true" pageId="137">L. viridiramulis</emphasis>
</taxonomicName>
,
<emphasis box="[898,1170,1820,1841]" italics="true" pageId="137">
<taxonomicName box="[898,1056,1820,1841]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="137" phylum="Tracheophyta" rank="species" species="vuquangensis">L. vuquangensis</taxonomicName>
,
<taxonomicName box="[1066,1170,1820,1841]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="137" phylum="Tracheophyta" rank="species" species="yaharae">L. yaharae</taxonomicName>
</emphasis>
and
<taxonomicName box="[1217,1317,1820,1841]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="137" phylum="Tracheophyta" rank="species" species="yersinii">L. yersinii</taxonomicName>
.
</paragraph>
</caption>
<paragraph blockId="137.[136,1452,1888,2059]" pageId="137">
<emphasis bold="true" box="[136,401,1888,1914]" pageId="137">Specimens examined:</emphasis>
<collectingCountry box="[430,562,1888,1914]" name="Vietnam" pageId="137">VIETNAM</collectingCountry>
.
<materialsCitation collectingDate="2017-02-12" collectingDateMax="2017-02-14" collectingDateMin="2017-02-12" collectionCode="DLU, FU, VNM" collectorName="Central &amp; Tagane S. &amp; Nagamasu H." country="Japan" elevation="1365" location="Ngoc Linh Nature Reserve" pageId="137" specimenCount="1" stateProvince="Kon Tum">
<emphasis bold="true" box="[579,680,1888,1914]" pageId="137">
<collectorName box="[579,675,1888,1914]" pageId="137">Central</collectorName>
:
</emphasis>
<collectingRegion box="[694,924,1888,1915]" country="Vietnam" name="Kon Tum" pageId="137">Kon Tum Province</collectingRegion>
,
<location LSID="urn:lsid:plazi:treatment:43284262FF18FF545AB6F83640C1CDB5:CE5EA5AFFF16FF575991F8C444D2CB33" box="[943,1268,1888,1915]" country="Japan" name="Ngoc Linh Nature Reserve" pageId="137" stateProvince="Kon Tum">Ngoc Linh Nature Reserve</location>
,
<quantity box="[1286,1379,1888,1915]" metricMagnitude="3" metricUnit="m" metricValue="1.365" pageId="137" unit="m" value="1365.0">
<elevation box="[1286,1379,1888,1915]" metricMagnitude="3" metricUnit="m" metricValue="1.365" pageId="137" unit="m" value="1365.0">1365 m</elevation>
</quantity>
elev., 15˚1224.02”N, 107˚4610.04E,
<date box="[520,722,1924,1950]" pageId="137" value="2017-02-14">
<collectingDate box="[520,722,1924,1950]" pageId="137" value="2017-02-14">14 February 2017</collectingDate>
</date>
,
<emphasis italics="true" pageId="137">
Tagane S., Nagamasu H., Nguyen
<taxonomicNameLabel box="[1117,1167,1925,1950]" pageId="137" rank="variety">V.N.</taxonomicNameLabel>
, Hoang T.B., Hoang T.S., Yang C.J., Kawakubo A. V6668
</emphasis>
(
<collectionCode box="[510,572,1960,1986]" pageId="137">DLU</collectionCode>
,
<collectionCode box="[585,624,1961,1987]" country="China" name="Fudan University, Department of Biology" pageId="137">FU</collectionCode>
,
<collectionCode box="[635,703,1961,1987]" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="137" type="Herbarium">VNM</collectionCode>
, the herbarium of Iriomote Station (
<collectingCountry box="[1115,1184,1960,1986]" name="Japan" pageId="137">Japan</collectingCountry>
)); in the same location,
<quantity box="[136,220,1996,2023]" metricMagnitude="3" metricUnit="m" metricValue="1.0699999999999998" pageId="137" unit="m" value="1070.0">
<elevation box="[136,220,1996,2023]" metricMagnitude="3" metricUnit="m" metricValue="1.0699999999999998" pageId="137" unit="m" value="1070.0">1070 m</elevation>
</quantity>
elev., 15˚1005.07”N, 107˚4523.06E,
<date box="[671,871,1996,2022]" pageId="137" value="2017-02-12">
<collectingDate box="[671,871,1996,2022]" pageId="137" value="2017-02-12">12 February 2017</collectingDate>
</date>
,
<emphasis box="[881,1253,1996,2022]" italics="true" pageId="137">
<collectorName box="[881,991,1996,2022]" pageId="137">Tagane S.</collectorName>
,
<collectorName box="[1002,1157,1997,2022]" pageId="137">Nagamasu H.</collectorName>
, Nguyen
</emphasis>
</materialsCitation>
<emphasis box="[1259,1312,1997,2022]" italics="true" pageId="137">
<taxonomicNameLabel box="[1259,1308,1997,2022]" pageId="137" rank="variety">
<collectingCountry box="[1259,1308,1997,2022]" name="Vietnam" pageId="137">V.N.</collectingCountry>
</taxonomicNameLabel>
,
</emphasis>
<materialsCitation collectionCode="DLU, FU" collectorName="Hoang T. B. &amp; Hoang T. S. &amp; Yang C. J. &amp; Kawakubo A. V" country="Japan" location="Iriomote Station" pageId="137" specimenCount="1">
<emphasis italics="true" pageId="137">
<collectorName box="[1318,1447,1997,2022]" pageId="137">Hoang T.B.</collectorName>
,
<collectorName box="[136,263,2032,2058]" pageId="137">Hoang T.S.</collectorName>
,
<collectorName box="[275,384,2032,2058]" pageId="137">Yang C.J.</collectorName>
,
<collectorName box="[396,571,2032,2058]" pageId="137">Kawakubo A. V</collectorName>
6422
</emphasis>
(
<collectionCode box="[641,703,2032,2058]" pageId="137">DLU</collectionCode>
,
<collectionCode box="[714,753,2033,2059]" country="China" name="Fudan University, Department of Biology" pageId="137">FU</collectionCode>
, the herbarium of
<location LSID="urn:lsid:plazi:treatment:43284262FF18FF545AB6F83640C1CDB5:CE5EA5AFFF16FF575980F8554452C442" box="[958,1140,2032,2058]" country="Japan" name="Iriomote Station" pageId="137">Iriomote Station</location>
(
<collectingCountry box="[1155,1224,2032,2058]" name="Japan" pageId="137">Japan</collectingCountry>
))
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="138" type="distribution">
<paragraph blockId="138.[136,1452,158,509]" box="[189,1407,158,185]" pageId="138">
<emphasis bold="true" box="[189,345,158,184]" pageId="138">Distribution:</emphasis>
—Endemic to
<collectingCountry box="[508,603,158,184]" name="Vietnam" pageId="138">Vietnam</collectingCountry>
(known only from the Ngoc Linh Nature Reserve,
<collectingRegion box="[1176,1395,158,185]" country="Vietnam" name="Kon Tum" pageId="138">Kon Tum Province</collectingRegion>
).
</paragraph>
<paragraph blockId="138.[136,1452,158,509]" box="[189,900,194,221]" pageId="138">
<emphasis bold="true" box="[189,423,194,220]" pageId="138">Habitat &amp; Ecology:</emphasis>
—In primary forests at
<quantity box="[686,841,194,221]" metricMagnitude="3" metricUnit="m" metricValue="1.2" metricValueMax="1.4" metricValueMin="1.0" pageId="138" unit="m" value="1200.0" valueMax="1400.0" valueMin="1000.0">10001400 m</quantity>
elev.
</paragraph>
<paragraph blockId="138.[136,1452,158,509]" box="[189,869,230,257]" pageId="138">
<emphasis bold="true" box="[189,323,230,256]" pageId="138">Phenology:</emphasis>
—Flowering and fruiting from February to June.
</paragraph>
<paragraph blockId="138.[136,1452,158,509]" box="[189,602,266,295]" pageId="138">
<emphasis bold="true" box="[189,405,266,292]" pageId="138">Vernacular name:</emphasis>
—Xú hưƠng việt.
</paragraph>
<paragraph blockId="138.[136,1452,158,509]" pageId="138">
<emphasis bold="true" box="[189,265,302,328]" pageId="138">Notes:</emphasis>
<taxonomicName box="[294,569,302,328]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="138" phylum="Tracheophyta" rank="species" species="vietnamensis">
<emphasis box="[294,569,302,328]" italics="true" pageId="138">Lasianthus vietnamensis</emphasis>
</taxonomicName>
is similar to
<taxonomicName authority="Pit. (1924: 390)" authorityName="Pitard" authorityPageNumber="390" authorityYear="1924" box="[718,1043,302,328]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="138" phylum="Tracheophyta" rank="species" species="caeruleus">
<emphasis box="[718,857,302,328]" italics="true" pageId="138">L. caeruleus</emphasis>
Pit. (1924: 390)
</taxonomicName>
which is endemic to
<collectingCountry box="[1285,1380,302,328]" name="Vietnam" pageId="138">Vietnam</collectingCountry>
in the shape of leaves and inflorescence
<typeStatus box="[516,567,339,365]" pageId="138">type</typeStatus>
, but differs from the latter in having larger leaves (814 ×
<quantity box="[1218,1343,338,365]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" metricValueMax="3.5" metricValueMin="1.5" pageId="138" unit="cm" value="2.5" valueMax="3.5" valueMin="1.5">1.53.5 cm</quantity>
vs. 4.57 ×
<quantity box="[158,286,374,401]" metricMagnitude="-2" metricUnit="m" metricValue="1.15" metricValueMax="1.5" metricValueMin="0.8" pageId="138" unit="cm" value="1.15" valueMax="1.5" valueMin="0.8">0.81.5 cm</quantity>
), more secondary veins (57 on each side of midrib vs. 45 on each side of midrib), longer petioles (
<quantity metricMagnitude="-3" metricUnit="m" metricValue="7.5" metricValueMax="10.0" metricValueMin="5.0" pageId="138" unit="mm" value="7.5" valueMax="10.0" valueMin="5.0">510 mm</quantity>
long vs.
<quantity box="[280,372,410,437]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="5.0" metricValueMin="4.0" pageId="138" unit="mm" value="4.5" valueMax="5.0" valueMin="4.0">45 mm</quantity>
long), bracts
<quantity box="[523,636,410,437]" metricMagnitude="-4" metricUnit="m" metricValue="8.5" metricValueMax="10.0" metricValueMin="7.0" pageId="138" unit="mm" value="0.85" valueMax="1.0" valueMin="0.7">0.71 mm</quantity>
long (vs. absent) and larger calyx (
<quantity box="[1025,1139,410,437]" metricMagnitude="-3" metricUnit="m" metricValue="2.75" metricValueMax="3.0" metricValueMin="2.5" pageId="138" unit="mm" value="2.75" valueMax="3.0" valueMin="2.5">2.53 mm</quantity>
long vs. tube ca.
<quantity box="[1332,1396,410,437]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="138" unit="mm" value="1.0">1 mm</quantity>
long for tubes,
<quantity box="[251,367,446,473]" metricMagnitude="-4" metricUnit="m" metricValue="7.5" metricValueMax="10.0" metricValueMin="5.0" pageId="138" unit="mm" value="0.75" valueMax="1.0" valueMin="0.5">0.51 mm</quantity>
long vs.
<quantity box="[473,560,446,473]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="138" unit="mm" value="0.5">0.5 mm</quantity>
long for lobes), yellowish-white (vs. blue) when ripe, and fruits with 5 (vs. 4) pyrenes.
</paragraph>
</subSubSection>
</treatment>
</document>