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<document id="BB7A0F3028394689127788F4F8415480" ID-CLB-Dataset="3124" ID-DOI="10.11646/phytotaxa.527.3.4" ID-GBIF-Dataset="4d61c86d-77e8-4f77-89b6-c093ddc83f39" ID-ISSN="1179-3163" ID-Zenodo-Dep="5751368" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1638520163962" checkinUser="plazi" docAuthor="Van, Hong Thien, Le, Van Son, Nguyen-Phi, Nga, Nguyen, Quoc Dat, Nguyen, Tran Quoc Trung, Nguyen, Hieu Cuong &amp; Luu, Hong Truong" docDate="2021" docId="03A86A70FFFEFFE3FF137DDAFAFD42E9" docLanguage="en" docName="phytotaxa.527.3.4.pdf" docOrigin="Phytotaxa 527 (3)" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Typhonium vietnamense Luu, Nguyen-Phi &amp; H. T. Van 2021, sp. nov." docType="treatment" docVersion="8" lastPageNumber="204" masterDocId="FF911208FFFEFFE0FF9B7A52FF924449" masterDocTitle="A new species and a new record of Typhonium (Araceae) from southern Vietnam" masterLastPageNumber="208" masterPageNumber="201" pageNumber="201" updateTime="1699471798329" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="5E579172282C42651B5803CF6A99BE39">A new species and a new record of Typhonium (Araceae) from southern Vietnam</mods:title>
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<mods:namePart id="2BF28C789B218ACA4FC619C3A4F0EF50">Van, Hong Thien</mods:namePart>
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<mods:affiliation id="84F4D8AF33FCBECB5DBF5E803D78F9E7">Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City, No. 12 Nguyen Van Bao Street, Go Vap District, Ho Chi Minh City, Vietnam. &amp; vanhongthien @ iuh. edu. vn; https: // orcid. org / 0000 - 0003 - 0151 - 5068</mods:affiliation>
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<mods:namePart id="AC78A0BE9FE1483C583E1EEA5D347DB9">Le, Van Son</mods:namePart>
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<mods:affiliation id="1A58CE55E2B3A6651168A883DA8A300C">Binh Chau-Phuoc Buu Nature Reserve, Bung Rieng Ward, Xuyen Moc District, Ba Ria-Vung Tau Province, Vietnam. &amp; lvsonplant @ gmail. com; https: // orcid. org / 0000 - 0003 - 0151 - 0646</mods:affiliation>
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<mods:namePart id="15C2E1574B2DE23B4DD32FC670176FE8">Nguyen-Phi, Nga</mods:namePart>
<mods:affiliation id="B6F04792FCDFA3A2952AD5BF3475B174">Department of Ecology and Evolutionary Biology, University of Science, Vietnam National University HCMC, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam. &amp; Vietnam National University-HCMC, Linh Trung Ward, Thu Duc City, Ho Chi Minh City.</mods:affiliation>
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<mods:namePart id="28E6EB834CD4B08D462EB91487B0BBD0">Nguyen, Quoc Dat</mods:namePart>
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<mods:affiliation id="AB713ED1C6DE4E9247B508761193515D">Southern Institute of Ecology, Vietnam Academy of Science and Technology, No. 1 D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam. &amp; nguyen _ dat 700 @ yahoo. com; https: // orcid. org / 0000 - 0002 - 3687 - 1567</mods:affiliation>
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<mods:namePart id="7848143E3F8627E39C3E49EC99E773B2">Nguyen, Tran Quoc Trung</mods:namePart>
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<mods:affiliation id="4D990B5F9D3FAB8852A2025E7767A5BB">Southern Institute of Ecology, Vietnam Academy of Science and Technology, No. 1 D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam. &amp; ntqtrung @ gmail. com; https: // orcid. org / 0000 - 0003 - 4366 - 2381</mods:affiliation>
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<mods:namePart id="9444E338B04393F348D819948B9B2502">Nguyen, Hieu Cuong</mods:namePart>
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<mods:affiliation id="46AE2353200ADEEDAC727BED10E735E5">Southern Institute of Ecology, Vietnam Academy of Science and Technology, No. 1 D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam. &amp; nhcuongem @ gmail. com; https: // orcid. org / 0000 - 0001 - 8707 - 2944</mods:affiliation>
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<mods:namePart id="15DFA25DC8FA277150653394EFD4624B">Luu, Hong Truong</mods:namePart>
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<mods:affiliation id="EA506C897B5FD8BFE5BC3D60FFADF15F">Southern Institute of Ecology, Vietnam Academy of Science and Technology, No. 1 D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam. &amp; hongtruongluu @ gmail. com; https: // orcid. org / 0000 - 0002 - 7036 - 7081</mods:affiliation>
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<mods:title id="EBA7F651A9E2770FAA270B10CF154A7B">Phytotaxa</mods:title>
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<mods:date id="C705AE47E589FBF0E0989F6FB1EBC8BB">2021</mods:date>
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<mods:identifier id="BD4A7B7E52B6EBB7D3CD9E4025979528" type="DOI">10.11646/phytotaxa.527.3.4</mods:identifier>
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<emphasis id="B9750774FFFEFFE0FF137DDAFC7A43EB" bold="true" box="[136,1000,1928,1955]" pageId="0" pageNumber="201">
<taxonomicName id="4C01A0E5FFFEFFE0FF137DDAFC9343EB" ID-CoL="9V7LS" authority="Luu, Nguyen-Phi &amp; H.T.Van" authorityName="Luu, Nguyen-Phi &amp; H. T. Van" authorityYear="2021" box="[136,769,1928,1955]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="0" pageNumber="201" phylum="Tracheophyta" rank="species" species="vietnamense" status="sp. nov.">
<emphasis id="B9750774FFFEFFE0FF137DDAFE3143EB" bold="true" box="[136,419,1928,1955]" italics="true" pageId="0" pageNumber="201">Typhonium vietnamense</emphasis>
Luu, Nguyen-Phi &amp; H.T.Van
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,
<emphasis id="B9750774FFFEFFE0FC957DDAFCF743EB" bold="true" box="[782,869,1928,1954]" italics="true" pageId="0" pageNumber="201">
<taxonomicNameLabel id="A246BA0FFFFEFFE0FC957DDAFCF743EB" box="[782,869,1928,1954]" pageId="0" pageNumber="201" rank="species">sp. nov.</taxonomicNameLabel>
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(
<figureCitation id="133AC7E3FFFEFFE0FCEF7DDAFC5143EB" box="[884,963,1928,1954]" captionStart="FIGURE 1" captionStartId="1.[136,229,1827,1849]" captionTargetBox="[220,1373,428,1789]" captionTargetId="figure-155@1.[210,1378,419,1799]" captionTargetPageId="1" captionText="FIGURE 1. Typhonium vietnamense. A. The species in habitat. B. Whole plant. C. Different forms of leaf blade. D &amp; E. Spathe. F. Longitudinal section of inflorescence. G. Male zone. H. Female zone and staminodes. I. Ovaries. J. Stigmas. K. Stamens. L. Fruits. M. Seeds." figureDoi="http://doi.org/10.5281/zenodo.5751370" httpUri="https://zenodo.org/record/5751370/files/figure.png" pageId="0" pageNumber="201">Figs. 1</figureCitation>
,
<figureCitation id="133AC7E3FFFEFFE0FC4A7DDAFC7243EB" box="[977,992,1928,1954]" captionStart="FIGURE 2" captionStartId="2.[136,229,1994,2016]" captionTargetBox="[151,1436,208,1970]" captionTargetId="figure-24@2.[151,1436,190,1970]" captionTargetPageId="2" captionText="FIGURE 2. Holotype of Typhonium vietnamense." figureDoi="http://doi.org/10.5281/zenodo.5751373" httpUri="https://zenodo.org/record/5751373/files/figure.png" pageId="0" pageNumber="201">2</figureCitation>
)
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</paragraph>
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<subSubSection id="C31B88EDFFFEFFE1FF137D86FB20450C" lastPageId="1" lastPageNumber="202" pageId="0" pageNumber="201" type="diagnosis">
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The new species is most morphologically similar to
<taxonomicName id="4C01A0E5FFFEFFE0FDE47D86FB8243A3" authority="Hett. &amp; Sookchaloem" authorityName="Hett. &amp; Sookchaloem" box="[639,1040,2004,2026]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="0" pageNumber="201" phylum="Tracheophyta" rank="species" species="varians">
<emphasis id="B9750774FFFEFFE0FDE47D86FCAA43A0" box="[639,824,2004,2025]" italics="true" pageId="0" pageNumber="201">Typhonium varians</emphasis>
Hett. &amp; Sookchaloem
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in Hetterscheid
<emphasis id="B9750774FFFEFFE0FB357D86FB4D43A0" box="[1198,1247,2004,2025]" italics="true" pageId="0" pageNumber="201">et al.</emphasis>
(2001: 51) in variant shape of leaves, triangular ovate spathe limb and general florescence structure but differs from the latter in having plain green (vs. variegated) leaves, underground (vs. above ground) flowering spathe tube, abaxially reddish purple to greenish grey, brownish mottled and ascending (vs. dark green flushed with dirty brown and horizontal) spathe limb, erect (vs. ascending) spadix, bright yellow staminodes curved downwards at their tips only (vs. pale yellow staminodes curved upwards or downwards over their entire length), ovoid (vs. spathulate to pyriform) fruits and generally smaller floral parts (3.5–4.5 vs. 8.0–
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long spadix, 3.5–5.0 × 2.0–2.5 vs. 7–14 × 4.0–
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spathe limb, 2.0–3.5 × 0.4–0.5 vs. 4.5–9.0 × 0.6–1.0 cm spadix appendix).
</paragraph>
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<emphasis id="B9750774FFFFFFE1FF137B01FF284521" bold="true" box="[136,186,339,360]" pageId="1" pageNumber="202">Type</emphasis>
:—
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, about
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30’52’’E
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36’17’’N
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elevation,
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,
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&amp;
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.Van 115
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(
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<collectionCode id="ED1043A3FFFFFFE1FB8D7B25FBDF45C5" box="[1046,1101,375,396]" country="0" httpUri="http://grbio.org/cool/fyzf-afsy" name="Southern Institute of Ecology" pageId="1" pageNumber="202" type="Herbarium">SGN</collectionCode>
!, isotypes
<collectionCode id="ED1043A3FFFFFFE1FB347B25FB7445C5" box="[1199,1254,375,396]" pageId="1" pageNumber="202">PHH</collectionCode>
!,
<collectionCode id="ED1043A3FFFFFFE1FB697B25FAD645C4" box="[1266,1348,375,397]" country="Viet Nam" httpUri="http://grbio.org/cool/65ma-2bzq" name="Vietnam National Museum of Nature" pageId="1" pageNumber="202">VNMN</collectionCode>
!)
</materialsCitation>
.
</paragraph>
</subSubSection>
<caption id="DF7E8BEEFFFFFFE1FF137D71FF5543C8" ID-DOI="http://doi.org/10.5281/zenodo.5751370" ID-Zenodo-Dep="5751370" httpUri="https://zenodo.org/record/5751370/files/figure.png" pageId="1" pageNumber="202" startId="1.[136,229,1827,1849]" targetBox="[220,1373,428,1789]" targetPageId="1">
<paragraph id="8BBEDB66FFFFFFE1FF137D71FF5543C8" blockId="1.[136,1452,1827,1921]" pageId="1" pageNumber="202">
<emphasis id="B9750774FFFFFFE1FF137D71FE934371" bold="true" box="[136,257,1827,1849]" pageId="1" pageNumber="202">FIGURE 1.</emphasis>
<taxonomicName id="4C01A0E5FFFFFFE1FE927D71FE614370" authorityName="Luu, Nguyen-Phi &amp; H. T. Van" authorityYear="2021" box="[265,499,1827,1849]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="1" pageNumber="202" phylum="Tracheophyta" rank="species" species="vietnamense">
<emphasis id="B9750774FFFFFFE1FE927D71FE614370" box="[265,499,1827,1849]" italics="true" pageId="1" pageNumber="202">Typhonium vietnamense</emphasis>
</taxonomicName>
. A. The species in habitat. B. Whole plant. C. Different forms of leaf blade. D &amp; E. Spathe. F. Longitudinal section of inflorescence. G. Male zone. H. Female zone and staminodes. I. Ovaries. J. Stigmas. K. Stamens. L. Fruits. M. Seeds.
</paragraph>
</caption>
<caption id="DF7E8BEEFFFCFFE2FF137D98FDF943A9" ID-DOI="http://doi.org/10.5281/zenodo.5751373" ID-Zenodo-Dep="5751373" box="[136,619,1994,2016]" httpUri="https://zenodo.org/record/5751373/files/figure.png" pageId="2" pageNumber="203" startId="2.[136,229,1994,2016]" targetBox="[151,1436,208,1970]" targetPageId="2">
<paragraph id="8BBEDB66FFFCFFE2FF137D98FDF943A9" blockId="2.[136,619,1994,2016]" box="[136,619,1994,2016]" pageId="2" pageNumber="203">
<emphasis id="B9750774FFFCFFE2FF137D98FF6C4396" bold="true" box="[136,254,1994,2016]" pageId="2" pageNumber="203">FIGURE 2.</emphasis>
Holotype of
<taxonomicName id="4C01A0E5FFFCFFE2FEE67D98FDF543A9" authorityName="Luu, Nguyen-Phi &amp; H. T. Van" authorityYear="2021" box="[381,615,1994,2016]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="2" pageNumber="203" phylum="Tracheophyta" rank="species" species="vietnamense">Typhonium vietnamense</taxonomicName>
.
</paragraph>
</caption>
<subSubSection id="C31B88EDFFFDFFE3FF137ACCFC7D47C1" pageId="3" pageNumber="204" type="description">
<paragraph id="8BBEDB66FFFDFFE3FF137ACCFC7D47C1" blockId="3.[136,1452,158,1697]" pageId="3" pageNumber="204">
Herb seasonally dormant; rhizome tuberous, subglobose to ellipsoid, underground, 1.0–
<quantity id="4CF97683FFFDFFE3FB1E7ACCFB4644F0" box="[1157,1236,158,185]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="3" pageNumber="204" unit="cm" value="1.5">1.5 cm</quantity>
long, ca.
<quantity id="4CF97683FFFDFFE3FAD47ACCFA1844F0" box="[1359,1418,158,185]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="3" pageNumber="204" unit="cm" value="1.0">1 cm</quantity>
in diameter, producing many thick roots. Leaves 4–5. Petiole smooth, slender,
<quantity id="4CF97683FFFDFFE3FC437A90FBAB4494" box="[984,1081,194,221]" metricMagnitude="-1" metricUnit="m" metricValue="1.1" metricValueMax="1.5" metricValueMin="0.7" pageId="3" pageNumber="204" unit="cm" value="11.0" valueMax="15.0" valueMin="7.0">7–15 cm</quantity>
long,
<quantity id="4CF97683FFFDFFE3FBE47A90FB4E4494" box="[1151,1244,194,221]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="3" pageNumber="204" unit="mm" value="2.5" valueMax="3.0" valueMin="2.0">2–3 mm</quantity>
in diameter, white to grey with brownish mottled at base, green towards the apex. Leaf blades entire or pedatisect, green above, pale green beneath; entire blades linear, deltoid to lanceolate,
<quantity id="4CF97683FFFDFFE3FC9C7B58FCFA456C" box="[775,872,266,293]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" metricValueMax="10.0" metricValueMin="6.0" pageId="3" pageNumber="204" unit="cm" value="8.0" valueMax="10.0" valueMin="6.0">6–10 cm</quantity>
long,
<quantity id="4CF97683FFFDFFE3FC347B58FB90456C" box="[943,1026,266,293]" metricMagnitude="-2" metricUnit="m" metricValue="5.0" metricValueMax="8.0" metricValueMin="2.0" pageId="3" pageNumber="204" unit="cm" value="5.0" valueMax="8.0" valueMin="2.0">2–8 cm</quantity>
wide, with acuminate to obtuse apex; pedatisect blades with 3 to 5 linear to lanceolate segments (up to
<quantity id="4CF97683FFFDFFE3FCC27B7CFC0C4500" box="[857,926,302,329]" metricMagnitude="-1" metricUnit="m" metricValue="1.5" pageId="3" pageNumber="204" unit="cm" value="15.0">15 cm</quantity>
long, 2.0–
<quantity id="4CF97683FFFDFFE3FB8E7B7CFBF24500" box="[1045,1120,302,329]" metricMagnitude="-2" metricUnit="m" metricValue="4.5" pageId="3" pageNumber="204" unit="cm" value="4.5">4.5 cm</quantity>
wide). Inflorescence, solitary (rarely 2), slightly foetid smelling; peduncle underground, elongated in fruiting, white, 1.5–2.0 cm long, ca.
<quantity id="4CF97683FFFDFFE3FAD57B00FA3E4524" box="[1358,1452,338,365]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" metricValueMax="5.0" metricValueMin="3.0" pageId="3" pageNumber="204" unit="mm" value="4.0" valueMax="5.0" valueMin="3.0">3–5 mm</quantity>
in diameter; spathe 4.5–6.0 cm long; spathe tube underground, separated from the limb by a constriction, ovoid or ellipsoid,
<quantity id="4CF97683FFFDFFE3FF637BC8FEE445FC" box="[248,374,410,437]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" metricValueMax="1.7" metricValueMin="1.3" pageId="3" pageNumber="204" unit="cm" value="1.5" valueMax="1.7" valueMin="1.3">1.3–1.7 cm</quantity>
long,
<quantity id="4CF97683FFFDFFE3FE247BC8FDB945FC" box="[447,555,410,437]" metricMagnitude="-3" metricUnit="m" metricValue="9.5" metricValueMax="10.0" metricValueMin="9.0" pageId="3" pageNumber="204" unit="mm" value="9.5" valueMax="10.0" valueMin="9.0">9–10 mm</quantity>
wide, outside white with brownish dots, inside white to pale pink; spathe limb triangular ovate, 3.5–5.0 cm long, 2.0–
<quantity id="4CF97683FFFDFFE3FDA07BECFD144590" box="[571,646,446,473]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" pageId="3" pageNumber="204" unit="cm" value="2.5">2.5 cm</quantity>
wide, outside reddish purple to greenish grey, brownish mottled, inside dark purple to reddish purple; spadix little shorter than spathe, sessile, erect; female zone conical,
<quantity id="4CF97683FFFDFFE3FB7F7BB0FAD145B4" box="[1252,1347,482,509]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="3" pageNumber="204" unit="mm" value="2.5" valueMax="3.0" valueMin="2.0">2–3 mm</quantity>
high, ca.
<quantity id="4CF97683FFFDFFE3FF137854FF594668" box="[136,203,518,545]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="3" pageNumber="204" unit="mm" value="5.0">5 mm</quantity>
in diameter at base, with 6–7 rows of crowded pistils; ovary obovoid or slightly cylindrical,
<quantity id="4CF97683FFFDFFE3FB607854FAAC4668" box="[1275,1342,518,545]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="3" pageNumber="204" unit="mm" value="1.0">1 mm</quantity>
high,
<quantity id="4CF97683FFFDFFE3FA137854FF26460C" metricMagnitude="-4" metricUnit="m" metricValue="7.0" pageId="3" pageNumber="204" unit="mm" value="0.7">0.7 mm</quantity>
in diameter, translucent white with brownish dots at apex, 1-locular, with 1 basal ovule; style very short; stigma disciform, thick,
<quantity id="4CF97683FFFDFFE3FEDD781CFE0E4620" box="[326,412,590,617]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="204" unit="mm" value="0.6">0.6 mm</quantity>
in diameter,
<quantity id="4CF97683FFFDFFE3FDB7781CFD134620" box="[556,641,590,617]" metricMagnitude="-4" metricUnit="m" metricValue="3.0" pageId="3" pageNumber="204" unit="mm" value="0.3">0.3 mm</quantity>
high, blackish purple to pink, papillate; sterile zone contiguously female zone,
<quantity id="4CF97683FFFDFFE3FF577820FEAB46C4" box="[204,313,626,653]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" metricValueMax="10.0" metricValueMin="8.0" pageId="3" pageNumber="204" unit="mm" value="9.0" valueMax="10.0" valueMin="8.0">8–10 mm</quantity>
long, lower part covered with 3–4 rows of staminodes, upper part naked; staminodes bright yellow, subulate,
<quantity id="4CF97683FFFDFFE3FF6D78C4FEC446F8" box="[246,342,662,689]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="3" pageNumber="204" unit="mm" value="2.5" valueMax="3.0" valueMin="2.0">2–3 mm</quantity>
long, ca.
<quantity id="4CF97683FFFDFFE3FE5678C4FDB446F8" box="[461,550,662,689]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="3" pageNumber="204" unit="mm" value="0.5">0.5 mm</quantity>
in diameter, ascending forming an obtuse angle with the spadix axis, slightly curved downward, weakly papillose; male zone cylindrical,
<quantity id="4CF97683FFFDFFE3FCB278E8FC06469C" box="[809,916,698,725]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" metricValueMax="10.0" metricValueMin="6.0" pageId="3" pageNumber="204" unit="mm" value="8.0" valueMax="10.0" valueMin="6.0">6–10 mm</quantity>
long, 3.5–5.0 mm in diameter; stamens densely arranged, pale yellow to pink; thecae opening by elongate slit; appendix shortly stipitate, outside brownish purple to reddish, inside light yellow, elongate conical, 2.0–
<quantity id="4CF97683FFFDFFE3FD7F7950FCA24754" box="[740,816,770,797]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="3" pageNumber="204" unit="cm" value="3.5">3.5 cm</quantity>
long,
<quantity id="4CF97683FFFDFFE3FCE17950FC4B4754" box="[890,985,770,797]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="5.0" metricValueMin="4.0" pageId="3" pageNumber="204" unit="mm" value="4.5" valueMax="5.0" valueMin="4.0">4–5 mm</quantity>
in diameter at base, with acute apex and truncate base. Infructescence obconical with spathe tube remaining and above the ground; fruits obconical, pinkish white with pale pinkish spots,
<quantity id="4CF97683FFFDFFE3FE7F7918FDD0472C" box="[484,578,842,869]" metricMagnitude="-3" metricUnit="m" metricValue="5.5" metricValueMax="7.0" metricValueMin="4.0" pageId="3" pageNumber="204" unit="mm" value="5.5" valueMax="7.0" valueMin="4.0">4–7 mm</quantity>
long,
<quantity id="4CF97683FFFDFFE3FD177918FD78472C" box="[652,746,842,869]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="3" pageNumber="204" unit="mm" value="2.5" valueMax="3.0" valueMin="2.0">2–3 mm</quantity>
wide, 1-seeded; seed obovate (or having constriction), at first creamy white, light brown when mature, 3.0–
<quantity id="4CF97683FFFDFFE3FD13793CFD4F47C0" box="[648,733,878,905]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" pageId="3" pageNumber="204" unit="mm" value="3.5">3.5 mm</quantity>
long, 2.0–
<quantity id="4CF97683FFFDFFE3FCCE793CFC3847C0" box="[853,938,878,905]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" pageId="3" pageNumber="204" unit="mm" value="2.5">2.5 mm</quantity>
wide.
</paragraph>
</subSubSection>
<subSubSection id="C31B88EDFFFDFFE3FF2679C0FC7D47E5" box="[189,1007,914,941]" pageId="3" pageNumber="204" type="etymology">
<paragraph id="8BBEDB66FFFDFFE3FF2679C0FC7D47E5" blockId="3.[136,1452,158,1697]" box="[189,1007,914,941]" pageId="3" pageNumber="204">
<emphasis id="B9750774FFFDFFE3FF2679C0FEDA47E5" bold="true" box="[189,328,914,940]" pageId="3" pageNumber="204">Etymology:</emphasis>
—The species is named after
<collectingCountry id="F3169BF6FFFDFFE3FD0879C0FD6747E5" box="[659,757,914,940]" name="Vietnam" pageId="3" pageNumber="204">Vietnam</collectingCountry>
, the country of origin.
</paragraph>
</subSubSection>
<subSubSection id="C31B88EDFFFDFFE3FF2679E4FDEF4798" box="[189,637,950,977]" pageId="3" pageNumber="204" type="vernacular_names">
<paragraph id="8BBEDB66FFFDFFE3FF2679E4FDEF4798" blockId="3.[136,1452,158,1697]" box="[189,637,950,977]" pageId="3" pageNumber="204">
<emphasis id="B9750774FFFDFFE3FF2679E4FE0A4799" bold="true" box="[189,408,950,976]" pageId="3" pageNumber="204">Vietnamese name:</emphasis>
—Bán hạ Việt Nam.
</paragraph>
</subSubSection>
<subSubSection id="C31B88EDFFFDFFE3FF267988FCBE4074" pageId="3" pageNumber="204" type="biology_ecology">
<paragraph id="8BBEDB66FFFDFFE3FF267988FCBE4074" blockId="3.[136,1452,158,1697]" pageId="3" pageNumber="204">
<emphasis id="B9750774FFFDFFE3FF267988FEB447BD" bold="true" box="[189,294,986,1012]" pageId="3" pageNumber="204">Ecology:</emphasis>
—The new species grows in clumps on open sandy soil in sparse dipterocarp-dominated forests. Different leaf forms were found in plant individuals or clumps. Flowering was seen in May to June and fruiting in July to August. The plant becomes dormant in November to April next year.
</paragraph>
</subSubSection>
<subSubSection id="C31B88EDFFFDFFE3FF267E14FC6A40CD" pageId="3" pageNumber="204" type="materials_examined">
<paragraph id="8BBEDB66FFFDFFE3FF267E14FC6A40CD" blockId="3.[136,1452,158,1697]" pageId="3" pageNumber="204">
<emphasis id="B9750774FFFDFFE3FF267E14FD504029" bold="true" box="[189,706,1094,1120]" pageId="3" pageNumber="204">
Additional specimen examined (
<typeStatus id="54BA65C4FFFDFFE3FDD77E14FD294029" box="[588,699,1094,1120]" pageId="3" pageNumber="204" type="paratype">paratype</typeStatus>
)
</emphasis>
:—
<materialsCitation id="3B69D13BFFFDFFE3FD787E14FCB040CD" ID-GBIF-Occurrence="3414059314" collectingDate="2015-10-01" collectionCode="H" collectorName="Van Hong Thien" country="Vietnam" location="Nguyen Le Xuan Bach" municipality="Yok Don National Park" pageId="3" pageNumber="204" specimenCount="1" stateProvince="Dak Lak">
<collectingCountry id="F3169BF6FFFDFFE3FD787E14FCF84029" box="[739,874,1094,1120]" name="Vietnam" pageId="3" pageNumber="204">VIETNAM</collectingCountry>
.
<collectingRegion id="49C51584FFFDFFE3FCE07E14FBC44029" box="[891,1110,1094,1120]" country="Vietnam" name="Dak Lak" pageId="3" pageNumber="204">Dak Lak Province</collectingRegion>
:
<collectingMunicipality id="6BDA411CFFFDFFE3FBFE7E14FAEC4029" box="[1125,1406,1094,1121]" pageId="3" pageNumber="204">Yok Don National Park</collectingMunicipality>
,
<date id="FFBFFDA6FFFDFFE3FA147E14FEB640CC" pageId="3" pageNumber="204" value="2015-10-01">
<collectingDate id="EFFB044EFFFDFFE3FA147E14FEB640CC" pageId="3" pageNumber="204" value="2015-10-01">01 October 2015</collectingDate>
</date>
,
<emphasis id="B9750774FFFDFFE3FEB47E39FCB040CD" box="[303,802,1130,1157]" italics="true" pageId="3" pageNumber="204">
<location id="8EDE8DBDFFFDFFE3FEB47E39FDB940CD" LSID="urn:lsid:plazi:treatment:03A86A70FFFEFFE3FF137DDAFAFD42E9:8EDE8DBDFFFDFFE3FEB47E39FDB940CD" box="[303,555,1130,1156]" country="Vietnam" municipality="Yok Don National Park" name="Nguyen Le Xuan Bach" pageId="3" pageNumber="204" stateProvince="Dak Lak">Nguyen Le Xuan Bach</location>
&amp;
<collectorName id="26F4BEB0FFFDFFE3FDD57E39FC9640CD" box="[590,772,1130,1156]" pageId="3" pageNumber="204">Van Hong Thien</collectorName>
<collectionCode id="ED1043A3FFFDFFE3FC907E39FCB040CD" box="[779,802,1131,1156]" country="Finland" lsid="urn:lsid:biocol.org:col:15618" name="University of Helsinki" pageId="3" pageNumber="204" type="Herbarium">H</collectionCode>
</emphasis>
</materialsCitation>
<emphasis id="B9750774FFFDFFE3FCB97E39FC0440CD" box="[802,918,1130,1156]" italics="true" pageId="3" pageNumber="204">
.
<materialsCitation id="3B69D13BFFFDFFE3FCBE7E39FCA440CD" ID-GBIF-Occurrence="3414059303" box="[805,822,1131,1156]" collectingDate="2015-10-01" collectionCode="T" collectorName="Van Hong Thien" country="Vietnam" isTailEnumeration="true" location="Nguyen Le Xuan Bach" municipality="Yok Don National Park" pageId="3" pageNumber="204" specimenCount="1" stateProvince="Dak Lak Province">
<collectionCode id="ED1043A3FFFDFFE3FCBE7E39FCA440CD" box="[805,822,1131,1156]" name="Tavera, Department of Geology and Geophysics" pageId="3" pageNumber="204">T</collectionCode>
</materialsCitation>
.Van 126
</emphasis>
(SGN!).
</paragraph>
</subSubSection>
<subSubSection id="C31B88EDFFFDFFE3FF267EDCFB1F40E1" box="[189,1165,1166,1193]" pageId="3" pageNumber="204" type="distribution">
<paragraph id="8BBEDB66FFFDFFE3FF267EDCFB1F40E1" blockId="3.[136,1452,158,1697]" box="[189,1165,1166,1193]" pageId="3" pageNumber="204">
<emphasis id="B9750774FFFDFFE3FF267EDCFECB40E1" bold="true" box="[189,345,1166,1192]" pageId="3" pageNumber="204">Distribution:</emphasis>
—Ba Ria - Vung Tau Province and
<collectingRegion id="49C51584FFFDFFE3FD7D7EDCFC2740E1" box="[742,949,1166,1192]" country="Vietnam" name="Dak Lak" pageId="3" pageNumber="204">Dak Lak Province</collectingRegion>
, southern
<collectingCountry id="F3169BF6FFFDFFE3FBBC7EDCFB1840E1" box="[1063,1162,1166,1192]" name="Vietnam" pageId="3" pageNumber="204">Vietnam</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="C31B88EDFFFDFFE3FF267EE0FC9B41C9" pageId="3" pageNumber="204" type="conservation">
<paragraph id="8BBEDB66FFFDFFE3FF267EE0FC9B41C9" blockId="3.[136,1452,158,1697]" pageId="3" pageNumber="204">
<emphasis id="B9750774FFFDFFE3FF267EE0FDE54085" bold="true" box="[189,631,1202,1228]" pageId="3" pageNumber="204">Proposed IUCN conservation status</emphasis>
:
<emphasis id="B9750774FFFDFFE3FDE57EE1FD054085" box="[638,663,1203,1228]" italics="true" pageId="3" pageNumber="204">—</emphasis>
Data Deficient (DD) (
<bibRefCitation id="EF90A697FFFDFFE3FC007EE0FF5740B9" author="IUCN Standards &amp; Petitions Subcommittee" pageId="3" pageNumber="204" refId="ref4524" refString="IUCN Standards and Petitions Subcommittee (2017) Guidelines for using the IUCN Red List Categories and Criteria. Version 13. Prepared by the Standards and Petitions Subcommittee of the IUCN Species Survival Commission. Available from: http: // www. iucnredlist. org / documents / RedListGuidelines. pdf (accessed 3 December 2021)" type="book" year="2017">IUCN Standards and Petitions Subcommittee 2017</bibRefCitation>
).
<materialsCitation id="3B69D13BFFFDFFE3FF4C7E84FC9741C9" ID-GBIF-Occurrence="3414059302" collectionCode="DD" country="Vietnam" county="Phuoc Buu Nature Reserve" location="Phuoc Buu Nature Reserve" municipality="Yok Don National Park" pageId="3" pageNumber="204" specimenCount="1" stateProvince="Dak Lak">
<taxonomicName id="4C01A0E5FFFDFFE3FF4C7E84FE7640B9" authorityName="Luu, Nguyen-Phi &amp; H. T. Van" authorityYear="2021" box="[215,484,1238,1264]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="3" pageNumber="204" phylum="Tracheophyta" rank="species" species="vietnamense">
<emphasis id="B9750774FFFDFFE3FF4C7E84FE7640B9" box="[215,484,1238,1264]" italics="true" pageId="3" pageNumber="204">Typhonium vietnamense</emphasis>
</taxonomicName>
has so far been found in two protected areas (Binh Chau -
<location id="8EDE8DBDFFFDFFE3FBEE7E84FA3540B8" LSID="urn:lsid:plazi:treatment:03A86A70FFFEFFE3FF137DDAFAFD42E9:8EDE8DBDFFFDFFE3FBEE7E84FA3540B8" box="[1141,1447,1238,1265]" country="Vietnam" county="Phuoc Buu Nature Reserve" municipality="Yok Don National Park" name="Phuoc Buu Nature Reserve" pageId="3" pageNumber="204" stateProvince="Dak Lak">Phuoc Buu Nature Reserve</location>
, Ba Ria - Vung Tau Province and
<collectingMunicipality id="6BDA411CFFFDFFE3FE6F7EA8FD6E415D" box="[500,764,1274,1301]" pageId="3" pageNumber="204">Yok Don National Park</collectingMunicipality>
,
<collectingRegion id="49C51584FFFDFFE3FC9C7EA8FC41415C" box="[775,979,1274,1301]" country="Vietnam" name="Dak Lak" pageId="3" pageNumber="204">Dak Lak Province</collectingRegion>
) in southern
<collectingCountry id="F3169BF6FFFDFFE3FBF87EA8FB54415D" box="[1123,1222,1274,1300]" name="Vietnam" pageId="3" pageNumber="204">Vietnam</collectingCountry>
. Although its habitat in Binh Chau -
<collectingCounty id="62DFA3EAFFFDFFE3FEA07F4CFDE24170" box="[315,624,1310,1337]" pageId="3" pageNumber="204">Phuoc Buu Nature Reserve</collectingCounty>
is planned to be converted into a resort in the near future, the species is likely to occur in adjacent similar sparse dipterocarp-dominated forests in
<collectingCountry id="F3169BF6FFFDFFE3FC267F10FBA64115" box="[957,1076,1346,1372]" name="Cambodia" pageId="3" pageNumber="204">Cambodia</collectingCountry>
. Further survey work is necessary before a definitive conservation assessment can be made
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C31B88EDFFFDFFE3FF267FD8FAFD42E9" pageId="3" pageNumber="204" type="discussion">
<paragraph id="8BBEDB66FFFDFFE3FF267FD8FAFD42E9" blockId="3.[136,1452,158,1697]" pageId="3" pageNumber="204">
<emphasis id="B9750774FFFDFFE3FF267FD8FE9B41ED" bold="true" box="[189,265,1418,1444]" pageId="3" pageNumber="204">Notes:</emphasis>
—The new species is morphologically closest to
<taxonomicName id="4C01A0E5FFFDFFE3FCB07FD8FB9341ED" box="[811,1025,1418,1444]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="3" pageNumber="204" phylum="Tracheophyta" rank="species" species="varians">
<emphasis id="B9750774FFFDFFE3FCB07FD8FB9341ED" box="[811,1025,1418,1444]" italics="true" pageId="3" pageNumber="204">Typhonium varians</emphasis>
</taxonomicName>
but they have a number of differences as expressed in the diagnosis. Several other
<taxonomicName id="4C01A0E5FFFDFFE3FDE67FFCFCC04181" box="[637,850,1454,1480]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="3" pageNumber="204" phylum="Tracheophyta" rank="species" species="undetermined">
<emphasis id="B9750774FFFDFFE3FDE67FFCFD6B4181" box="[637,761,1454,1480]" italics="true" pageId="3" pageNumber="204">Typhonium</emphasis>
species
</taxonomicName>
share with
<taxonomicName id="4C01A0E5FFFDFFE3FC4C7FFDFBEC4181" authorityName="Luu, Nguyen-Phi &amp; H. T. Van" authorityYear="2021" box="[983,1150,1455,1480]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="3" pageNumber="204" phylum="Tracheophyta" rank="species" species="vietnamense">
<emphasis id="B9750774FFFDFFE3FC4C7FFDFBEC4181" box="[983,1150,1455,1480]" italics="true" pageId="3" pageNumber="204">T. vietnamense</emphasis>
</taxonomicName>
a similar spadix structure, especially in the shape of spadix appendix and staminodes, but these are easily distinguishable:
<taxonomicName id="4C01A0E5FFFDFFE3FB667F81FDA14259" authority="Hetterscheid &amp; Galloway (2006: 80)" authorityName="Hetterscheid &amp; Galloway" authorityPageNumber="80" authorityYear="2006" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="3" pageNumber="204" phylum="Tracheophyta" rank="species" species="conchiforme">
<emphasis id="B9750774FFFDFFE3FB667F81FA9F41A5" box="[1277,1293,1491,1516]" italics="true" pageId="3" pageNumber="204">T</emphasis>
.
<emphasis id="B9750774FFFDFFE3FA847F80FA3941A5" box="[1311,1451,1490,1516]" italics="true" pageId="3" pageNumber="204">conchiforme</emphasis>
<bibRefCitation id="EF90A697FFFDFFE3FF137FA4FDA14259" author="Hetterscheid, W. L. A. &amp; Galloway, A." box="[136,563,1526,1552]" pageId="3" pageNumber="204" pagination="80 - 85" refId="ref4415" refString="Hetterscheid, W. L. A. &amp; Galloway, A. (2006) New Typhonium (Araceae) species from Thailand. Aroideana 29: 80 - 85." type="journal article" year="2006">Hetterscheid &amp; Galloway (2006: 80)</bibRefCitation>
</taxonomicName>
by deeply sagittate leaf blades, deeply cymbiform, strongly concave spathe limb and off-white or pale yellow staminodes;
<taxonomicName id="4C01A0E5FFFDFFE3FD017C49FBE3427D" authority="Gagnepain (1942 b: 11)" authorityName="Gagnepain" authorityPageNumber="11" authorityYear="1942" box="[666,1137,1562,1588]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="3" pageNumber="204" phylum="Tracheophyta" rank="species" species="sagittariifolium">
<emphasis id="B9750774FFFDFFE3FD017C49FCF7427D" box="[666,869,1562,1588]" italics="true" pageId="3" pageNumber="204">T. sagittariifolium</emphasis>
<bibRefCitation id="EF90A697FFFDFFE3FCF67C48FBE3427D" author="Gagnepain, F." box="[877,1137,1562,1588]" pageId="3" pageNumber="204" pagination="10 - 12" refId="ref4218" refString="Gagnepain, F. (1942 b) Typhonium (Araceae) nouveaux d'Indochine. Bulletin de la Societe botanique de France 89: 10 - 12. https: // doi. org / 10.1080 / 00378941.1942.10833053" type="journal article" year="1942">Gagnepain (1942b: 11)</bibRefCitation>
</taxonomicName>
by deeply trilobed sagittate leaf blades, erect elongate triangular spathe limb, longer spadix appendix (
<quantity id="4CF97683FFFDFFE3FC567C6CFB804210" box="[973,1042,1598,1625]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="3" pageNumber="204" unit="mm" value="8.0">8 mm</quantity>
), and longer (
<quantity id="4CF97683FFFDFFE3FB377C6CFA994210" box="[1196,1291,1598,1625]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" metricValueMax="5.0" metricValueMin="3.0" pageId="3" pageNumber="204" unit="mm" value="4.0" valueMax="5.0" valueMin="3.0">3–5 mm</quantity>
) and recurved staminodes; and
<taxonomicName id="4C01A0E5FFFDFFE3FEDE7C30FB984234" authority="Galloway &amp; Sinhabaedya (2012: 61)" authorityName="Galloway &amp; Sinhabaedya" authorityPageNumber="61" authorityYear="2012" box="[325,1034,1634,1661]" class="Liliopsida" family="Araceae" genus="Typhonium" kingdom="Plantae" order="Alismatales" pageId="3" pageNumber="204" phylum="Tracheophyta" rank="species" species="viridispathum">
<emphasis id="B9750774FFFDFFE3FEDE7C30FDF74235" box="[325,613,1634,1660]" italics="true" pageId="3" pageNumber="204">Typhonium viridispathum</emphasis>
Galloway &amp; Sinhabaedya (2012: 61)
</taxonomicName>
by bright green spathe with elongate triangular limb, off-white spadix appendix, basally white and apically pale green ovaries and white staminodes.
</paragraph>
</subSubSection>
</treatment>
</document>
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