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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="43284262FFF4FFB35AB6F82C44F6CDB4" 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 nuichuaensis V. S. Dang &amp; Naiki 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 LSID="urn:lsid:plazi:treatment:43284262FFF4FFB35AB6F82C44F6CDB4" httpUri="http://treatment.plazi.org/id/43284262FFF4FFB35AB6F82C44F6CDB4" lastPageId="109" pageId="107">
<subSubSection box="[136,1159,1929,1956]" pageId="107" type="nomenclature">
<paragraph blockId="107.[136,1451,1929,2027]" box="[136,1159,1929,1956]" pageId="107">
<emphasis bold="true" box="[136,171,1929,1955]" pageId="107">53.</emphasis>
<taxonomicName authority="V. S. Dang &amp; Naiki (2021: 17)" authorityName="V. S. Dang &amp; Naiki" authorityPageNumber="17" authorityYear="2021" box="[178,802,1929,1956]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="107" phylum="Tracheophyta" rank="species" species="nuichuaensis">
<emphasis bold="true" box="[178,468,1929,1956]" italics="true" pageId="107">Lasianthus nuichuaensis</emphasis>
V.S.Dang &amp; Naiki (2021: 17)
</taxonomicName>
<figureCitation box="[833,912,1929,1955]" captionStart="FIGURE 81" captionStartId="108.[136,229,1789,1811]" captionTargetBox="[167,1418,194,1763]" captionTargetId="figure-26@108.[165,1418,193,1765]" captionTargetPageId="108" captionText="FIGURE 81. Lasianthus nuichuaensis V.S.Dang &amp; Naiki (from Dang 404, VNM): A. Fruiting branch, B. Stipules, C. Abaxial leaf surfaces, DF. Close-up of inflorescences and flowers, GH. Close-up of immature and mature fruits, I. Seeds." figureDoi="http://doi.org/10.5281/zenodo.7571802" httpUri="https://zenodo.org/record/7571802/files/figure.png" pageId="107">Fig. 81</figureCitation>
(plate),
<figureCitation box="[1006,1085,1929,1955]" captionStart="FIGURE 78" captionStartId="104.[136,229,1799,1821]" captionTargetBox="[176,1405,209,1763]" captionTargetId="figure-25@104.[165,1418,193,1775]" captionTargetPageId="104" captionText="FIGURE 78. Distribution maps of Lasianthus nghiasonii, L. nhatrangensis, L. ngoclinhensis, L. nuichuaensis and L. oblongilobus." figureDoi="http://doi.org/10.5281/zenodo.7571792" httpUri="https://zenodo.org/record/7571792/files/figure.png" pageId="107">Fig. 78</figureCitation>
(map)
</paragraph>
</subSubSection>
<subSubSection lastPageId="108" pageId="107" type="materials_examined">
<paragraph blockId="107.[136,1451,1929,2027]" pageId="107">
<emphasis bold="true" box="[136,194,1969,1990]" pageId="107">Type:</emphasis>
<materialsCitation collectingDate="2019-08-16" collectionCode="VNM" collectorName="Dang V. S. &amp; Naiki A. &amp; Dang" country="Vietnam" elevation="260" location="Iriomote Station" municipality="Nui Chua National Park" pageId="107" specimenCode="VNM00042926, VNM00042927, VNM00042928" specimenCount="1" stateProvince="Ninh Thuan" typeStatus="holotype">
<collectingCountry box="[219,332,1969,1990]" name="Vietnam" pageId="107">VIETNAM</collectingCountry>
.
<collectingRegion box="[343,557,1969,1991]" country="Vietnam" name="Ninh Thuan" pageId="107">Ninh Thuan Province</collectingRegion>
,
<collectingMunicipality box="[569,810,1969,1991]" pageId="107">Nui Chua National Park</collectingMunicipality>
,
<quantity box="[823,886,1969,1991]" metricMagnitude="2" metricUnit="m" metricValue="2.6" pageId="107" unit="m" value="260.0">
<elevation box="[823,886,1969,1991]" metricMagnitude="2" metricUnit="m" metricValue="2.6" pageId="107" unit="m" value="260.0">260 m</elevation>
</quantity>
elev.,
<date box="[953,1112,1969,1991]" pageId="107" value="2019-08-16">
<collectingDate box="[953,1112,1969,1991]" pageId="107" value="2019-08-16">16 August 2019</collectingDate>
</date>
,
<emphasis box="[1125,1451,1969,1991]" italics="true" pageId="107">
<collectorName box="[1125,1224,1969,1991]" pageId="107">Dang V.S.</collectorName>
&amp;
<collectorName box="[1258,1341,1969,1990]" pageId="107">Naiki A.</collectorName>
,
<collectorName box="[1353,1406,1970,1991]" pageId="107">Dang</collectorName>
404
</emphasis>
(
<typeStatus box="[196,282,2005,2027]" pageId="107">holotype</typeStatus>
<collectionCode box="[287,348,2005,2026]" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="107" type="Herbarium">VNM</collectionCode>
! [
<specimenCode box="[362,523,2005,2027]" collectionCode="VNM" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="107" type="Herbarium">VNM00042926</specimenCode>
]; isotypes
<collectionCode box="[622,683,2005,2026]" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="107" type="Herbarium">VNM</collectionCode>
! [
<specimenCode box="[697,854,2005,2026]" collectionCode="VNM" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="107" type="Herbarium">VNM00042927</specimenCode>
,
<specimenCode box="[863,1020,2005,2026]" collectionCode="VNM" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="107" type="Herbarium">VNM00042928</specimenCode>
], the herbarium of
<location LSID="urn:lsid:plazi:treatment:43284262FFF4FFB35AB6F82C44F6CDB4:CE5EA5AFFFF4FFB55E8FF8704568CBA3" box="[1201,1358,2005,2027]" country="Vietnam" municipality="Nui Chua National Park" name="Iriomote Station" pageId="107" stateProvince="Ninh Thuan">Iriomote Station</location>
(Japan))
</materialsCitation>
.
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7571802" ID-Zenodo-Dep="7571802" httpUri="https://zenodo.org/record/7571802/files/figure.png" pageId="108" startId="108.[136,229,1789,1811]" targetBox="[167,1418,194,1763]" targetPageId="108">
<paragraph blockId="108.[136,1451,1789,1847]" pageId="108">
<emphasis bold="true" box="[136,269,1789,1811]" pageId="108">FIGURE 81.</emphasis>
<taxonomicName authority="V. S. Dang &amp; Naiki" authorityName="V. S. Dang &amp; Naiki" box="[278,708,1789,1811]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="108" phylum="Tracheophyta" rank="species" species="nuichuaensis">
<emphasis box="[278,518,1789,1810]" italics="true" pageId="108">Lasianthus nuichuaensis</emphasis>
V.S.Dang &amp; Naiki
</taxonomicName>
(from
<emphasis box="[782,881,1789,1811]" italics="true" pageId="108">Dang 404</emphasis>
, VNM):
<emphasis bold="true" box="[975,999,1789,1810]" pageId="108">A.</emphasis>
Fruiting branch,
<emphasis bold="true" box="[1175,1197,1789,1810]" pageId="108">B.</emphasis>
Stipules,
<emphasis bold="true" box="[1299,1322,1789,1811]" pageId="108">C.</emphasis>
Abaxial leaf surfaces,
<emphasis bold="true" box="[227,274,1825,1846]" pageId="108">DF.</emphasis>
Close-up of inflorescences and flowers,
<emphasis bold="true" box="[667,722,1825,1847]" pageId="108">GH.</emphasis>
Close-up of immature and mature fruits,
<emphasis bold="true" box="[1121,1136,1825,1846]" pageId="108">I.</emphasis>
Seeds.
</paragraph>
</caption>
<paragraph blockId="108.[136,1452,1893,2063]" pageId="108">
<emphasis bold="true" box="[136,402,1893,1919]" pageId="108">
<collectingRegion box="[136,262,1893,1919]" pageId="108">Specimens</collectingRegion>
examined:
</emphasis>
<materialsCitation accessionNumber="N10147" collectingDate="2017-12-01" collectingDateMax="2019-08-16" collectingDateMin="2017-12-01" collectionCode="VNM, KYO" collectorName="Dang V. S. &amp; Naiki A. &amp; Dang &amp; Japan" country="Vietnam" county="Nui Chua National Park" elevation="260" latitude="11.735142" location="Iriomote Station" longLatPrecision="1" longitude="109.22086" municipality="Iriomote Station" pageId="108" specimenCount="1" stateProvince="Ninh Thuan">
<collectingCountry box="[431,563,1893,1919]" name="Vietnam" pageId="108">VIETNAM</collectingCountry>
.
<emphasis bold="true" box="[582,683,1893,1919]" pageId="108">Central:</emphasis>
<collectingRegion box="[699,959,1893,1919]" country="Vietnam" name="Ninh Thuan" pageId="108">Ninh Thuan Province</collectingRegion>
,
<collectingCounty box="[979,1277,1893,1919]" pageId="108">Nui Chua National Park</collectingCounty>
,
<quantity box="[1297,1377,1893,1920]" metricMagnitude="2" metricUnit="m" metricValue="2.6" pageId="108" unit="m" value="260.0">
<elevation box="[1297,1377,1893,1920]" metricMagnitude="2" metricUnit="m" metricValue="2.6" pageId="108" unit="m" value="260.0">260 m</elevation>
</quantity>
elev.,
<geoCoordinate box="[136,314,1929,1956]" degrees="11" direction="north" minutes="44" orientation="latitude" pageId="108" precision="1" seconds="06.53" value="11.735147">11°4406.53N</geoCoordinate>
,
<geoCoordinate box="[329,519,1929,1956]" degrees="109" direction="east" minutes="13" orientation="longitude" pageId="108" precision="1" seconds="15.12" value="109.22087">109°1315.12E</geoCoordinate>
, in secondary forest,
<date box="[772,959,1929,1955]" pageId="108" value="2019-08-16">
<collectingDate box="[772,959,1929,1955]" pageId="108" value="2019-08-16">16 August 2019</collectingDate>
</date>
,
<emphasis box="[974,1359,1929,1956]" italics="true" pageId="108">
<collectorName box="[974,1089,1930,1956]" pageId="108">Dang V.S.</collectorName>
&amp;
<collectorName box="[1132,1229,1929,1956]" pageId="108">Naiki A.</collectorName>
,
<collectorName box="[1244,1306,1930,1955]" pageId="108">Dang</collectorName>
404
</emphasis>
(
<collectionCode box="[1377,1447,1929,1955]" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="108" type="Herbarium">VNM</collectionCode>
, the herbarium of
<collectingMunicipality box="[336,521,1965,1991]" pageId="108">Iriomote Station</collectingMunicipality>
(
<collectorName box="[538,607,1965,1991]" pageId="108">Japan</collectorName>
)); in the same location,
<quantity box="[886,959,1965,1992]" metricMagnitude="2" metricUnit="m" metricValue="2.56" pageId="108" unit="m" value="256.0">
<elevation box="[886,959,1965,1992]" metricMagnitude="2" metricUnit="m" metricValue="2.56" pageId="108" unit="m" value="256.0">256 m</elevation>
</quantity>
elev.,
<geoCoordinate box="[1036,1213,1965,1992]" degrees="11" direction="north" minutes="44" orientation="latitude" pageId="108" precision="1" seconds="06.51" value="11.735142">11°4406.51N</geoCoordinate>
,
<geoCoordinate box="[1227,1416,1965,1992]" degrees="109" direction="east" minutes="13" orientation="longitude" pageId="108" precision="1" seconds="15.11" value="109.22086">109°1315.11E</geoCoordinate>
, in secondary forest,
<date box="[336,553,2001,2027]" pageId="108" value="2017-12-01">
<collectingDate box="[336,553,2001,2027]" pageId="108" value="2017-12-01">01 December 2017</collectingDate>
</date>
,
<emphasis box="[564,901,2001,2028]" italics="true" pageId="108">
<collectorName box="[564,676,2002,2028]" pageId="108">Dang V.S.</collectorName>
&amp;
<collectorName box="[713,805,2001,2028]" pageId="108">Naiki A.</collectorName>
<accessionNumber box="[812,901,2001,2027]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/N10147" pageId="108">N10147</accessionNumber>
</emphasis>
(
<collectionCode box="[916,981,2001,2027]" country="Japan" lsid="urn:lsid:biocol.org:col:15604" name="Kyoto University" pageId="108" type="Herbarium">KYO</collectionCode>
,
<collectionCode box="[993,1061,2002,2028]" country="Viet Nam" httpUri="http://grbio.org/cool/tj07-dt2h" name="Institute of Tropical Biology" pageId="108" type="Herbarium">VNM</collectionCode>
, the herbarium of
<location LSID="urn:lsid:plazi:treatment:43284262FFF4FFB35AB6F82C44F6CDB4:CE5EA5AFFFF3FFB25ECAF874458DCBA3" box="[1268,1451,2001,2027]" country="Vietnam" county="Nui Chua National Park" latitude="11.735142" longLatPrecision="1" longitude="109.22086" municipality="Iriomote Station" name="Iriomote Station" pageId="108" stateProvince="Ninh Thuan">Iriomote Station</location>
(Japan))
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="109" type="distribution">
<paragraph blockId="109.[136,1452,158,509]" box="[189,1403,158,185]" pageId="109">
<emphasis bold="true" box="[189,345,158,184]" pageId="109">Distribution:</emphasis>
—Endemic to
<collectingCountry box="[508,603,158,184]" name="Vietnam" pageId="109">Vietnam</collectingCountry>
(known only from the Nui Chua National Park,
<collectingRegion box="[1145,1391,158,184]" country="Vietnam" name="Ninh Thuan" pageId="109">Ninh Thuan Province</collectingRegion>
).
</paragraph>
<paragraph blockId="109.[136,1452,158,509]" pageId="109">
<emphasis bold="true" box="[189,422,194,220]" pageId="109">Habitat &amp; Ecology:</emphasis>
<materialsCitation country="Vietnam" elevation="250" location="Nui Chua National Park" pageId="109" specimenCount="1" stateProvince="Ninh Thuan">
This species is only known from the
<typeStatus box="[861,909,195,221]" pageId="109">type</typeStatus>
locality in
<location LSID="urn:lsid:plazi:treatment:43284262FFF4FFB35AB6F82C44F6CDB4:CE5EA5AFFFF2FFB35E35FF67453DCC94" box="[1035,1307,194,220]" country="Vietnam" name="Nui Chua National Park" pageId="109" stateProvince="Ninh Thuan">Nui Chua National Park</location>
,
<collectingRegion country="Vietnam" name="Ninh Thuan" pageId="109">Ninh Thuan Province</collectingRegion>
, southern
<collectingCountry box="[354,449,230,256]" name="Vietnam" pageId="109">Vietnam</collectingCountry>
where it grows under the shade of the secondary forest at an elevation between
<quantity metricMagnitude="2" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="109" unit="m" value="250.0" valueMax="300.0" valueMin="200.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="109" unit="m" value="250.0" valueMax="300.0" valueMin="200.0">200300 m</elevation>
</quantity>
.
</materialsCitation>
</paragraph>
<paragraph blockId="109.[136,1452,158,509]" box="[189,1148,302,329]" pageId="109">
<emphasis bold="true" box="[189,323,302,328]" pageId="109">Phenology:</emphasis>
—Flowering from June to September, fruiting from October to December
</paragraph>
<paragraph blockId="109.[136,1452,158,509]" box="[189,656,338,367]" pageId="109">
<emphasis bold="true" box="[189,405,338,364]" pageId="109">Vernacular name:</emphasis>
—Xú hưƠng núi chúa.
</paragraph>
<paragraph blockId="109.[136,1452,158,509]" pageId="109">
<emphasis bold="true" box="[189,265,374,400]" pageId="109">Notes:</emphasis>
<taxonomicName box="[294,573,374,400]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="109" phylum="Tracheophyta" rank="species" species="nuichuaensis">
<emphasis box="[294,573,374,400]" italics="true" pageId="109">Lasianthus nuichuaensis</emphasis>
</taxonomicName>
is closely related to
<taxonomicName authority="(Drake) Pit. (1924: 382)" authorityName="Pit." authorityPageNumber="382" authorityYear="1924" baseAuthorityName="Drake" box="[824,1265,374,400]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="109" phylum="Tracheophyta" rank="species" species="hispidulus">
<emphasis box="[824,972,374,400]" italics="true" pageId="109">L. hispidulus</emphasis>
(Drake) Pit. (1924: 382)
</taxonomicName>
in the shape of leaves, the number of secondary veins and inflorescences, but differs from the latter by having glabrous branches (vs. densely brown-villous), smaller leaves (57 ×
<quantity box="[656,760,446,473]" metricMagnitude="-2" metricUnit="m" metricValue="2.25" metricValueMax="3.0" metricValueMin="1.5" pageId="109" unit="cm" value="2.25" valueMax="3.0" valueMin="1.5">1.53 cm</quantity>
vs. 710 ×
<quantity box="[891,978,446,473]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" metricValueMax="5.0" metricValueMin="3.0" pageId="109" unit="cm" value="4.0" valueMax="5.0" valueMin="3.0">35 cm</quantity>
), bracts
<quantity box="[1071,1185,446,473]" metricMagnitude="-3" metricUnit="m" metricValue="1.25" metricValueMax="1.5" metricValueMin="1.0" pageId="109" unit="mm" value="1.25" valueMax="1.5" valueMin="1.0">11.5 mm</quantity>
long (vs. absent), calyx and corolla lobes 4 (vs. lobes 5), orange fruits (vs. blue) and drupe with 4 pyrenes (vs. 5 pyrenes).
</paragraph>
</subSubSection>
</treatment>
</document>