581 lines
49 KiB
XML
581 lines
49 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.197.73596" ID-Pensoft-Pub="1314-2003-197-71" ID-Pensoft-UUID="2489B1092F155E3E8A36C95CAAA4A40C" ModsDocID="1314-2003-197-71" checkinTime="1653736498511" checkinUser="pensoft" docAuthor="Nguyen, Quoc Binh, Nguyen, Hieu Cuong, Tran, Duc Binh, Nguyen, Phuong Hanh & Luu, Hong Truong" docDate="2022" docId="7F8F1B6F0D705CF08E80FC6A71247CC2" docLanguage="en" docName="PhytoKeys 197: 71-79" docOrigin="PhytoKeys 197" docPubDate="2022-05-27" docSource="http://dx.doi.org/10.3897/phytokeys.197.73596" docTitle="Isotrema putalengense Luu, Q. B. Nguyen & H. C. Nguyen 2022, sp. nov." docType="treatment" docVersion="2" id="2489B1092F155E3E8A36C95CAAA4A40C" lastPageNumber="71" masterDocId="2489B1092F155E3E8A36C95CAAA4A40C" masterDocTitle="Isotrema putalengense, a new species of Aristolochiaceae from northern Vietnam and two new combinations in Isotrema" masterLastPageNumber="79" masterPageNumber="71" pageNumber="71" updateTime="1653736799036" updateUser="ExternalLinkService">
|
||
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo>
|
||
<mods:title>Isotrema putalengense, a new species of Aristolochiaceae from northern Vietnam and two new combinations in Isotrema</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Nguyen, Quoc Binh</mods:namePart>
|
||
<mods:affiliation>Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam</mods:affiliation>
|
||
<mods:nameIdentifier type="email">binhzing@gmail.com</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Nguyen, Hieu Cuong</mods:namePart>
|
||
<mods:affiliation>Southern Institute of Ecology, Institute of Applied Materials Science and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 1 D, TL 29 Street, District 12, Ho Chi Minh City, Vietnam</mods:affiliation>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Tran, Duc Binh</mods:namePart>
|
||
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-6658-0739</mods:nameIdentifier>
|
||
<mods:affiliation>Institute of Ecology and Biological Resource, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam</mods:affiliation>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Nguyen, Phuong Hanh</mods:namePart>
|
||
<mods:affiliation>Institute of Ecology and Biological Resource, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam</mods:affiliation>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Luu, Hong Truong</mods:namePart>
|
||
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-7036-7081</mods:nameIdentifier>
|
||
<mods:affiliation>Southern Institute of Ecology, Institute of Applied Materials Science and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 1 D, TL 29 Street, District 12, Ho Chi Minh City, Vietnam</mods:affiliation>
|
||
<mods:nameIdentifier type="email">hongtruongluu@gmail.com</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:typeOfResource>text</mods:typeOfResource>
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||
<mods:relatedItem type="host">
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||
<mods:titleInfo>
|
||
<mods:title>PhytoKeys</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part>
|
||
<mods:date>2022</mods:date>
|
||
<mods:detail type="pubDate">
|
||
<mods:number>2022-05-27</mods:number>
|
||
</mods:detail>
|
||
<mods:detail type="volume">
|
||
<mods:number>197</mods:number>
|
||
</mods:detail>
|
||
<mods:extent unit="page">
|
||
<mods:start>71</mods:start>
|
||
<mods:end>79</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:location>
|
||
<mods:url>http://dx.doi.org/10.3897/phytokeys.197.73596</mods:url>
|
||
</mods:location>
|
||
<mods:classification>journal article</mods:classification>
|
||
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.197.73596</mods:identifier>
|
||
<mods:identifier type="Pensoft-Pub">1314-2003-197-71</mods:identifier>
|
||
<mods:identifier type="Pensoft-UUID">2489B1092F155E3E8A36C95CAAA4A40C</mods:identifier>
|
||
</mods:mods>
|
||
<treatment LSID="urn:lsid:plazi:treatment:7F8F1B6F0D705CF08E80FC6A71247CC2" httpUri="http://treatment.plazi.org/id/7F8F1B6F0D705CF08E80FC6A71247CC2" lastPageNumber="71" pageId="0" pageNumber="71">
|
||
<subSubSection pageId="0" pageNumber="71" type="nomenclature">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<taxonomicName LSID="7F8F1B6F-0D70-5CF0-8E80-FC6A71247CC2" authority="Luu, Q. B. Nguyen & H. C. Nguyen" authorityName="Luu, Q. B. Nguyen & H. C. Nguyen" authorityYear="2022" class="Magnoliopsida" family="Apocynaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema putalengense" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="putalengense" status="sp. nov.">Isotrema putalengense Luu, Q.B.Nguyen & H.C.Nguyen</taxonomicName>
|
||
<taxonomicNameLabel pageId="0" pageNumber="71">sp. nov.</taxonomicNameLabel>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="description">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Isotrema putalengense Luu, Q. B. Nguyen & H. C. Nguyen A habit B leaf C leaf lamina, adaxial surface D leaf lamina, abaxial surface E flower, side view F flower, front view G bracteole H perianth, longitudinal dissection I utricle, inside J ovary, cross section K gynostemium, side view L stigma, view from above M stem, cross section. Photographs by Hieu Cuong Nguyen from SH 992 at the type locality." figureDoi="10.3897/phytokeys.197.73596.figure1" httpUri="https://binary.pensoft.net/fig/688553" pageId="0" pageNumber="71">Fig. 1</figureCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="materials_examined">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<typeStatus>Type</typeStatus>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<materialsCitation collectingDate="2020-06-14" collectorName="Nguyen Quoc Binh, Tran Duc Binh, Doan Hoang Son, Nguyen Hieu Cuong SH" country="Vietnam" elevation="2329" latitude="22.454723" location="Pu Ta Leng Mountain" longLatPrecision="21" longitude="103.55195" municipality="Tam Duong District" specimenCount="1" stateProvince="Lai Chau Province" typeStatus="holotype">
|
||
<collectingCountry name="Vietnam">Vietnam</collectingCountry>
|
||
.
|
||
<collectingRegion country="Vietnam" name="Lai Chau">Lai Chau Province</collectingRegion>
|
||
,
|
||
<collectingMunicipality>Tam Duong District</collectingMunicipality>
|
||
,
|
||
<location LSID="urn:lsid:plazi:treatment:7F8F1B6F0D705CF08E80FC6A71247CC2:FAEDA1E71F2533520DF2A060BA88CF90" country="Vietnam" latitude="22.454723" longLatPrecision="21" longitude="103.55195" municipality="Tam Duong District" name="Pu Ta Leng Mountain" stateProvince="Lai Chau Province">Pu Ta Leng Mountain</location>
|
||
,
|
||
<geoCoordinate degrees="22" direction="north" minutes="27" orientation="latitude" precision="15" seconds="17" value="22.454723">22°27'17"N</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="103" direction="east" minutes="33" orientation="longitude" precision="15" seconds="07" value="103.55195">103°33'07"E</geoCoordinate>
|
||
,
|
||
<quantity metricMagnitude="3" metricUnit="m" metricValue="2.3289999999999997" unit="m" value="2329.0">
|
||
<elevation metricMagnitude="3" metricUnit="m" metricValue="2.3289999999999997" unit="m" value="2329.0">2329 m</elevation>
|
||
</quantity>
|
||
elevation,
|
||
<collectingDate value="2020-06-14">14 June 2020</collectingDate>
|
||
,
|
||
<emphasis italics="true" pageId="0" pageNumber="71">
|
||
<collectorName>Nguyen Quoc Binh</collectorName>
|
||
</emphasis>
|
||
,
|
||
<emphasis italics="true" pageId="0" pageNumber="71">
|
||
<collectorName>Tran Duc Binh</collectorName>
|
||
</emphasis>
|
||
,
|
||
<emphasis italics="true" pageId="0" pageNumber="71">
|
||
<collectorName>Doan Hoang Son</collectorName>
|
||
</emphasis>
|
||
,
|
||
<emphasis italics="true" pageId="0" pageNumber="71">
|
||
<collectorName>Nguyen Hieu Cuong SH</collectorName>
|
||
992
|
||
</emphasis>
|
||
(
|
||
<typeStatus>holotype</typeStatus>
|
||
, VNMN!; isotypes, SGN!, VNMN!)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<caption doi="10.3897/phytokeys.197.73596.figure1" httpUri="https://binary.pensoft.net/fig/688553" pageId="0" pageNumber="71" start="Figure 1" startId="F1">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<emphasis bold="true" pageId="0" pageNumber="71">Figure 1.</emphasis>
|
||
<taxonomicName authorityName="Luu, Q. B. Nguyen & H. C. Nguyen" authorityYear="2022" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema putalengense" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="putalengense">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Isotrema putalengense</emphasis>
|
||
</taxonomicName>
|
||
Luu, Q.B.Nguyen & H.C.Nguyen
|
||
<emphasis bold="true" pageId="0" pageNumber="71">A</emphasis>
|
||
habit
|
||
<emphasis bold="true" pageId="0" pageNumber="71">B</emphasis>
|
||
leaf
|
||
<emphasis bold="true" pageId="0" pageNumber="71">C</emphasis>
|
||
leaf lamina, adaxial surface
|
||
<emphasis bold="true" pageId="0" pageNumber="71">D</emphasis>
|
||
leaf lamina, abaxial surface
|
||
<emphasis bold="true" pageId="0" pageNumber="71">E</emphasis>
|
||
flower, side view
|
||
<emphasis bold="true" pageId="0" pageNumber="71">F</emphasis>
|
||
flower, front view
|
||
<emphasis bold="true" pageId="0" pageNumber="71">G</emphasis>
|
||
bracteole
|
||
<emphasis bold="true" pageId="0" pageNumber="71">H</emphasis>
|
||
perianth, longitudinal dissection
|
||
<emphasis bold="true" pageId="0" pageNumber="71">I</emphasis>
|
||
utricle, inside
|
||
<emphasis bold="true" pageId="0" pageNumber="71">J</emphasis>
|
||
ovary, cross section
|
||
<emphasis bold="true" pageId="0" pageNumber="71">K</emphasis>
|
||
gynostemium, side view
|
||
<emphasis bold="true" pageId="0" pageNumber="71">L</emphasis>
|
||
stigma, view from above
|
||
<emphasis bold="true" pageId="0" pageNumber="71">M</emphasis>
|
||
stem, cross section. Photographs by Hieu Cuong Nguyen from
|
||
<emphasis italics="true" pageId="0" pageNumber="71">SH992</emphasis>
|
||
at the
|
||
<typeStatus>type</typeStatus>
|
||
locality.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="diagnosis">
|
||
<paragraph pageId="0" pageNumber="71">Diagnosis.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
The new species is most morphologically similar to
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. wardianum" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="wardianum">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. wardianum</emphasis>
|
||
</taxonomicName>
|
||
in the shape of leaves and flowers but differs in having densely brown villous (vs. abaxially light brown villous) bracteoles, flowers on old woody stems (vs. in axils of leafy shoots), basally truncate perianth limb that is ovoid in front view and with purple apex (vs. basally obtuse, oblong in front view and with yellow apex), indistinct (vs. distinct) utricle from lower tube, U-shaped (vs. V-shaped) tube notch and internally black purple (vs. purple) tube.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="description">
|
||
<paragraph pageId="0" pageNumber="71">Description.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
Liana perennial, woody. Stems terete, pubescent. Petioles 3-4.5 cm long, densely pubescent; laminas lanceolate to slightly pandurate, 15-20
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-6 cm, adaxially sparsely pubescent, abaxially pubescent, margin entire, base auriculate, apex acute; veins palmate, 1 pair from base, lateral veins 3-4-paired; venation slightly adaxially sunken, abaxially prominent. Flowers on old woody stems, solitary; pedicel 2.5-3 cm, densely brown villous; bracteole inserted on basal half of pedicel, triangular, 5-5.5 mm long, 4-5.5 mm wide at base, densely brown villous, persistent. Ovary yellowish, 1.8-2.1 cm, 0.3-0.4 cm in diameter, densely brown villous, 6-ridged. Perianth horseshoe-shaped (in lateral view), 4-4.5 cm high, yellowish to purple, outside densely yellowish to brown hirsute with parallel veins, inside dark purple. Utricle indistinct from the tube, cylindrical, 7-9 mm long, 7-8 mm in diameter, outside light yellow, inside pilose and dark purple. Tube 3.5-4.0 cm, horseshoe-shaped, folded upwards at its middle forming a U-shaped notch, inside glabrous; lower tube 1.7-1.9 cm high and 0.6-0.7 cm in diameter, basally light yellow, apically purple; upper tube 0.6-0.7 cm long and 0.5-0.6 cm in diameter, parallel to the utricle, slightly constricted at the middle, purple; limb cylindric, ovoid in front view, curved forward, with truncate base, 2.5-2.7 cm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.2-1.3 cm in diameter, inside dark red with dense dark-purple papillae, 3-lobed; lobes widely triangular, 0.5-1.3 mm high
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2-4 mm wide; throat ca. 3-4 mm high
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2 mm wide; annulus hemispherical, 0.5-0.6 cm high
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.6-0.7 cm in diameter at base. Anthers 6, oblong, 2-2.2 mm long, adnate in 3 pairs to base of gynostemium. Gynostemium 3.5-4 mm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3.5-4 mm in diameter, stipitate; stipe ca. 0.5 mm; stigma connate, slightly 3-lobed; lobes (in older state) irregularly toothed. Fruits not seen.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="phenology">
|
||
<paragraph pageId="0" pageNumber="71">Phenology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">Flowering found in June, fruiting unknown.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="etymology">
|
||
<paragraph pageId="0" pageNumber="71">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
The specific epithet refers to the type locality, Pu Ta Leng Mountain which is part of the Hoang Lien Son Mountain Range and located about 30 km northwest of
|
||
<normalizedToken originalValue="Vietnam’s">Vietnam's</normalizedToken>
|
||
highest Mt. Fan Si Pan.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="common and vernacular names">
|
||
<paragraph pageId="0" pageNumber="71">Common and vernacular names.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<normalizedToken originalValue="Putaleng’s">Putaleng's</normalizedToken>
|
||
pipevine (Vietnamese name:
|
||
<normalizedToken originalValue="Phòng">Phong</normalizedToken>
|
||
kỷ Pu Ta Leng).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="distribution">
|
||
<paragraph pageId="0" pageNumber="71">Distribution and habitat.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
The new species is currently only known from Pu Ta Leng Mountain (with its highest peak at 3.049 m elevation), Tam Duong District, Lai Chau Province. It grows on humid fertile soils under a closed broadleaved evergreen forest unexplored botanically. There is no data available on the forest cover of the mountain. Our preliminary notes indicate that this forest is dominated by the
|
||
<taxonomicName class="Magnoliopsida" family="Fagaceae" genus="I." kingdom="Plantae" lsidName="" order="Fagales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="family">Fagaceae</taxonomicName>
|
||
,
|
||
<taxonomicName class="Magnoliopsida" family="Lauraceae" genus="I." kingdom="Plantae" lsidName="" order="Laurales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="family">Lauraceae</taxonomicName>
|
||
,
|
||
<taxonomicName class="Magnoliopsida" family="Theaceae" genus="I." kingdom="Plantae" lsidName="" order="Ericales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="family">Theaceae</taxonomicName>
|
||
,
|
||
<taxonomicName class="Magnoliopsida" family="Ericaceae" genus="I." kingdom="Plantae" lsidName="" order="Ericales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="family">Ericaceae</taxonomicName>
|
||
and
|
||
<taxonomicName class="Magnoliopsida" family="Magnoliaceae" genus="I." kingdom="Plantae" lsidName="" order="Magnoliales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="family">Magnoliaceae</taxonomicName>
|
||
that are common families on the Hoang Lien Son Mountain Range, which is geographically considered part of the southern extension of the Himalayas and phytogeographically located in the Sikang-Yunnan Province (
|
||
<bibRefCitation author="Averyanov, LV" journalOrPublisher="Komarovia" pageId="0" pageNumber="71" pagination="1 - 83" refId="B1" refString="Averyanov, LV, Phan, KL, Nguyen, TH, Harder, DK, 2003. Phytogeographic review of Vietnam and adjacent areas of Eastern Indochina. Komarovia 3: 1 - 83" title="Phytogeographic review of Vietnam and adjacent areas of Eastern Indochina." volume="3" year="2003">Averyanov et al. 2003</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="preliminary extinction risk assessment">
|
||
<paragraph pageId="0" pageNumber="71">Preliminary extinction risk assessment.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
The plant was recorded in a small population with few scattered individuals in a presently unprotected large forest. It may be found in adjacent similar forests on the Hoang Lien Son Mountain Range. Given this fact, it is provisionally assigned as Data Deficient until more information is recorded (
|
||
<bibRefCitation author="Hwang, SM" journalOrPublisher="Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="71" refId="B17" refString="IUCN (2012) IUCN Red List Categories and Criteria: Version 3.1. Second edition. IUCN, Gland, Switzerland and Cambridge, UK, [iv +] 32pp." year="2003">IUCN 2012</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Hwang, SM" journalOrPublisher="Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="71" publicationUrl="https://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B18" refString="2022. . https://www.iucnredlist.org/documents/RedListGuidelines.pdf" url="https://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2022">IUCN Standards and Petitions Committee 2022</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="discussion">
|
||
<paragraph pageId="0" pageNumber="71">Discussion.</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<taxonomicName authorityName="Luu, Q. B. Nguyen & H. C. Nguyen" authorityYear="2022" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema putalengense" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="putalengense">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Isotrema putalengense</emphasis>
|
||
</taxonomicName>
|
||
is most morphologically similar to
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. wardianum" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="wardianum">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. wardianum</emphasis>
|
||
</taxonomicName>
|
||
but they have a number of differences as expressed in the diagnosis. Besides, the new species is also close to
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. utriforme" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="utriforme">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. utriforme</emphasis>
|
||
</taxonomicName>
|
||
(S.M.Hwang) X.X.Zhu, S.Liao & J.S.Ma (
|
||
<bibRefCitation author="Hwang, SM" journalOrPublisher="Annales Botanici Fennici" pageId="0" pageNumber="71" refId="B15" refString="Hwang, SM, 1981. Materials for Chinese Aristolochia. Zhiwu Fenlei Xuebao 19: 222-231." title="Materials for Chinese Aristolochia. Zhiwu Fenlei Xuebao 19: 222 - 231." year="1981">Hwang 1981</bibRefCitation>
|
||
;
|
||
<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.401.1.1" author="Zhu, XX" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="71" pagination="1 - 23" refId="B42" refString="Zhu, XX, Li, XQ, Liao, S, Du, C, Wang, Y, Wang, ZH, Yan, J, Zuo, YJ, Ma, JS, 2019a. Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae). Phytotaxa 401 (1): 1 - 23, DOI: https://doi.org/10.11646/phytotaxa.401.1.1" title="Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae)." url="https://doi.org/10.11646/phytotaxa.401.1.1" volume="401" year="2019 a">Zhu et al. 2019a</bibRefCitation>
|
||
) in the shape of leaves and flowers but the latter has glabrous and longer (4-8 cm) petiole, yellow-green flowers borne in axils of leafy shoots, ovate-lanceolate bracteoles inserted above middle of peduncle, short upper tube (3-4 mm), convex annulus, saccate limb with ovate-deltate and erect lobes. The shape of flowers in the new species looks like that in
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. pseudoutriforme" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="pseudoutriforme">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. pseudoutriforme</emphasis>
|
||
</taxonomicName>
|
||
(X.X.Zhu & J.S.Ma) X.X.Zhu, Jun Wang & J.S.Ma and
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. ovatifolium" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="ovatifolium">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. ovatifolium</emphasis>
|
||
</taxonomicName>
|
||
(S.M.Hwang) X.X.Zhu, S.Liao & J.S.Ma (
|
||
<bibRefCitation author="Hwang, SM" journalOrPublisher="Annales Botanici Fennici" pageId="0" pageNumber="71" refId="B15" refString="Hwang, SM, 1981. Materials for Chinese Aristolochia. Zhiwu Fenlei Xuebao 19: 222-231." title="Materials for Chinese Aristolochia. Zhiwu Fenlei Xuebao 19: 222 - 231." year="1981">Hwang 1981</bibRefCitation>
|
||
;
|
||
<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.401.1.1" author="Zhu, XX" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="71" pagination="1 - 23" refId="B42" refString="Zhu, XX, Li, XQ, Liao, S, Du, C, Wang, Y, Wang, ZH, Yan, J, Zuo, YJ, Ma, JS, 2019a. Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae). Phytotaxa 401 (1): 1 - 23, DOI: https://doi.org/10.11646/phytotaxa.401.1.1" title="Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae)." url="https://doi.org/10.11646/phytotaxa.401.1.1" volume="401" year="2019 a">Zhu et al. 2019a</bibRefCitation>
|
||
,
|
||
<bibRefCitation DOI="https://doi.org/10.3897/phytokeys.130.33933" author="Zhu, X" journalOrPublisher="PhytoKeys" pageId="0" pageNumber="71" pagination="93 - 106" refId="B46" refString="Zhu, X, Li, X, Liao, S, Li, G, Ma, J, 2019e. The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: Two new species from Yunnan, China. PhytoKeys 130: 93 - 106, DOI: https://doi.org/10.3897/phytokeys.130.33933" title="The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: Two new species from Yunnan, China." url="https://doi.org/10.3897/phytokeys.130.33933" volume="130" year="2019 e">e</bibRefCitation>
|
||
) but
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. pseudoutriforme" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="pseudoutriforme">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. pseudoutriforme</emphasis>
|
||
</taxonomicName>
|
||
has ovate to narrowly ovate leaves and plain light yellow flowers, uncurved limb forming obtuse angle with upper tuber and ring-like annulus and
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. ovatifolium" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="ovatifolium">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. ovatifolium</emphasis>
|
||
</taxonomicName>
|
||
has ovate leaves and abaxially densely off-white villous, purple-red flowers in axils of leafy shoots. The key morphological differences between the new species and those closest species are presented in Table
|
||
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological differences between Isotrema putalengense and close species (based on Hwang 1981; Ma 1989; Hwang et al. 2003; Zhu et al. 2019 e; Wang et al. 2020 b)." httpUri="http://table.plazi.org/id/9596225E17648E0DCCB090B18F82A29D" pageId="0" pageNumber="71" tableUuid="9596225E17648E0DCCB090B18F82A29D">1</tableCitation>
|
||
.
|
||
</paragraph>
|
||
<caption ID-Table-UUID="9596225E17648E0DCCB090B18F82A29D" httpUri="http://table.plazi.org/id/9596225E17648E0DCCB090B18F82A29D" pageId="0" pageNumber="71" start="Table 1" startId="T1">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<emphasis bold="true" pageId="0" pageNumber="71">Table 1.</emphasis>
|
||
Morphological differences between
|
||
<taxonomicName authorityName="Luu, Q. B. Nguyen & H. C. Nguyen" authorityYear="2022" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema putalengense" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="putalengense">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Isotrema putalengense</emphasis>
|
||
</taxonomicName>
|
||
and close species (based on
|
||
<bibRefCitation author="Hwang, SM" journalOrPublisher="Annales Botanici Fennici" pageId="0" pageNumber="71" refId="B15" refString="Hwang, SM, 1981. Materials for Chinese Aristolochia. Zhiwu Fenlei Xuebao 19: 222-231." title="Materials for Chinese Aristolochia. Zhiwu Fenlei Xuebao 19: 222 - 231." year="1981">Hwang 1981</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Ma, JS" journalOrPublisher="Zhiwu Fenlei Xuebao" pageId="0" pageNumber="71" pagination="321 - 364" refId="B26" refString="Ma, JS, 1989. A revision of Aristolochia Linn. from E. & S. Asia. Zhiwu Fenlei Xuebao 27: 321 - 364" title="A revision of Aristolochia Linn. from E. & S. Asia." volume="27" year="1989">Ma 1989</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Hwang, SM" editor="Wu, ZY" journalOrPublisher="Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="71" pagination="246 - 269" refId="B16" refString="Hwang, SM, Kelly, LM, Gilbert, MG, 2003. Aristolochiaceae. In: Wu, ZY, Raven, PH, Hong, DY, Eds., Flora of China, Vol 5. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 246 - 269" title="Aristolochiaceae." volumeTitle="Flora of China, Vol 5." year="2003">Hwang et al. 2003</bibRefCitation>
|
||
;
|
||
<bibRefCitation DOI="https://doi.org/10.3897/phytokeys.130.33933" author="Zhu, X" journalOrPublisher="PhytoKeys" pageId="0" pageNumber="71" pagination="93 - 106" refId="B46" refString="Zhu, X, Li, X, Liao, S, Li, G, Ma, J, 2019e. The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: Two new species from Yunnan, China. PhytoKeys 130: 93 - 106, DOI: https://doi.org/10.3897/phytokeys.130.33933" title="The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: Two new species from Yunnan, China." url="https://doi.org/10.3897/phytokeys.130.33933" volume="130" year="2019 e">Zhu et al. 2019e</bibRefCitation>
|
||
;
|
||
<bibRefCitation DOI="https://doi.org/10.3897/phytokeys.152.51760" author="Wang, J" journalOrPublisher="PhytoKeys" pageId="0" pageNumber="71" pagination="15 - 25" refId="B33" refString="Wang, J, Ya, JD, Liu, C, Liu, G, Cao, F, Ma, JS, Zhu, XX, 2020b. Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: II. I. brevilimbum (Aristolochiaceae), a new species from Guizhou, China. PhytoKeys 152: 15 - 25, DOI: https://doi.org/10.3897/phytokeys.152.51760" title="Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: II. I. brevilimbum (Aristolochiaceae), a new species from Guizhou, China." url="https://doi.org/10.3897/phytokeys.152.51760" volume="152" year="2020 b">Wang et al. 2020b</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
<table pageId="0" pageNumber="71">
|
||
<tr pageId="0" pageNumber="71">
|
||
<th colspan="1" pageId="0" pageNumber="71" rowspan="1">Characters</th>
|
||
<th colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. putalengense" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="putalengense">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. putalengense</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
<th colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. ovatifolium" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="ovatifolium">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. ovatifolium</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
<th colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. pseudoutriforme" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="pseudoutriforme">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. pseudoutriforme</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
<th colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. utriforme" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="utriforme">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. utriforme</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
<th colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. wardianum" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="wardianum">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. wardianum</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Petiole</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">densely pubescent, 3-4.5 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">villous, 3-5 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">densely pubescent, 2-5 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">glabrous, 4-8 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">densely villous, 3-5 cm long</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Lamina</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
lanceolate to slightly pandurate, 15-20
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-6 cm, with auriculate base, adaxially sparsely pubescent, abaxially pubescent
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
ovate, 5-13
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-8 cm, with cordate base, abaxially villous, adaxially glabrescent (densely villous when young)
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
ovate to narrowly ovate, 10-22
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
7-13 cm, with cordate base, adaxially sparsely pubescent, abaxially densely pubescent
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
ovate-lanceolate, 10-17
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-4 cm, with auriculate base, adaxially glabrous
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
lanceolate, 12-16
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-4 cm, with auriculate base, adaxially subglabrous to glabrous
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Pedicel</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">2.5-3 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">3-6 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">1.8-5 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">4-6 cm long</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">1-2.5 cm long</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Bracteoles</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">triangular, inserted on basal half of pedicel</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ovate, inserted on basal 1/2 of pedicel</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ovate, inserted on basal half and/or distal half of pedicel</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ovate-lanceolate, inserted above distal half of pedicel</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ovate, inserted on basal half of pedicel</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Flower position</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">on old woody stems</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">axillary</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">axillary, sometimes on stems</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">axillary</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">axillary</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Perianth limb</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
cylindric, ovoid in front view, straightly extended from upper tube, purple, 2.5-2.7 cm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.2-1.3 cm in diameter, abaxially densely yellowish to brown hirsute
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
subcylindric, straightly extended from upper tube, purple-red, 1.5-2.5 cm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-1.5 cm in diameter, abaxially densely off-white villous
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
cylindric, forming obtuse angle with upper tuber, light yellow, 2-3 cm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-1.7 cm in diameter, abaxially sparsely villous
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
ovoid, straightly extended from upper tube, yellow-green, 1-2 cm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
ca. 1 cm in widest diameter, abaxially sparsely pilose to glabrous
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
cylindric, oblong in front view, forming obtuse angle with upper tube, purple with yellow apex, ca. 2.5 cm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.9 cm in diameter, abaxially densely yellow villous
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Limb lobes</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">wide triangle</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">subrounded or nearly truncate</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">triangle or wide triangle</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ovate-deltate</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">wide triangle</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Perianth throat</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ca. 3-4 mm wide</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ca. 2.5 mm wide</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ca. 6 mm wide</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ca. 1 mm wide</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ca. 2-3 mm wide</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Utricle</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">indistinct from lower tube, 7-8 mm in diameter, light yellow</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">indistinct from lower tube, 3-5 mm in diameter, purple-red</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">indistinct from lower tube, ca. 7-9 mm in diameter, light yellow</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">indistinct from lower tube, 3-4 mm in diameter, yellow-green</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">distinct from lower tube, 5 mm in diameter, light yellow</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Tube notch</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">U-shaped</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">V-shaped</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">U-shaped</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">V-shaped</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">V-shaped</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Upper tube</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
6-7 mm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
5-6 mm in diameter, purple
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
ca. 3-5 mm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-4 mm in diameter, purple-red
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
3-4 mm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
6-8 mm in diameter, light yellow
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
ca. 3-5 mm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
5-6 mm in diameter, yellow-green
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">
|
||
ca. 10 mm long
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
6 mm in diameter, purple
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Annulus</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">hemispherical</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">flat</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">ring-like, raised</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">convex</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">hemispherical</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="71">
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">Stigma lobes</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">truncate to slightly obtuse, irregularly toothed</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">obtuse, entire</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">round, entire</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">obtuse, entire</td>
|
||
<td colspan="1" pageId="0" pageNumber="71" rowspan="1">obtuse, entire</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
The leaves of the new species resemble those of
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. cucurbitoides" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="cucurbitoides">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. cucurbitoides</emphasis>
|
||
</taxonomicName>
|
||
(C.F.Liang) X.X.Zhu, S.Liao & J.S.Ma (
|
||
<bibRefCitation author="Liang, CF" journalOrPublisher="Zhiwu Fenlei Xuebao" pageId="0" pageNumber="71" pagination="10 - 18" refId="B22" refString="Liang, CF, 1975. The Aristolochiaceae of Kwangsi Flora. Zhiwu Fenlei Xuebao 13: 10 - 18" title="The Aristolochiaceae of Kwangsi Flora." volume="13" year="1975">Liang 1975</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Hwang, SM" editor="Wu, ZY" journalOrPublisher="Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="71" pagination="246 - 269" refId="B16" refString="Hwang, SM, Kelly, LM, Gilbert, MG, 2003. Aristolochiaceae. In: Wu, ZY, Raven, PH, Hong, DY, Eds., Flora of China, Vol 5. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 246 - 269" title="Aristolochiaceae." volumeTitle="Flora of China, Vol 5." year="2003">Hwang et al. 2003</bibRefCitation>
|
||
;
|
||
<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.401.1.1" author="Zhu, XX" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="71" pagination="1 - 23" refId="B42" refString="Zhu, XX, Li, XQ, Liao, S, Du, C, Wang, Y, Wang, ZH, Yan, J, Zuo, YJ, Ma, JS, 2019a. Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae). Phytotaxa 401 (1): 1 - 23, DOI: https://doi.org/10.11646/phytotaxa.401.1.1" title="Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae)." url="https://doi.org/10.11646/phytotaxa.401.1.1" volume="401" year="2019 a">Zhu et al. 2019a</bibRefCitation>
|
||
) and
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. yangii" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="yangii">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. yangii</emphasis>
|
||
</taxonomicName>
|
||
X.X.Zhu & J.S.Ma (
|
||
<bibRefCitation DOI="https://doi.org/10.3897/phytokeys.130.33933" author="Zhu, X" journalOrPublisher="PhytoKeys" pageId="0" pageNumber="71" pagination="93 - 106" refId="B46" refString="Zhu, X, Li, X, Liao, S, Li, G, Ma, J, 2019e. The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: Two new species from Yunnan, China. PhytoKeys 130: 93 - 106, DOI: https://doi.org/10.3897/phytokeys.130.33933" title="The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: Two new species from Yunnan, China." url="https://doi.org/10.3897/phytokeys.130.33933" volume="130" year="2019 e">Zhu et al. 2019e</bibRefCitation>
|
||
;
|
||
<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.437.3.8" author="Wang, J" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="71" pagination="174 - 176" refId="B32" refString="Wang, J, Ma, JS, Zhu, XX, 2020a. Four new combinations in Isotrema (Aristolochiaceae). Phytotaxa 437 (3): 174 - 176, DOI: https://doi.org/10.11646/phytotaxa.437.3.8" title="Four new combinations in Isotrema (Aristolochiaceae)." url="https://doi.org/10.11646/phytotaxa.437.3.8" volume="437" year="2020 a">Wang et al. 2020a</bibRefCitation>
|
||
) but these two species are readily different in a number of characters:
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. cucurbifoides" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="cucurbifoides">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. cucurbifoides</emphasis>
|
||
</taxonomicName>
|
||
has leaves with 7-10 pairs of lateral veins, brownish flowers in axils of leafy shoots, ovate bracteoles, geniculately curved tube, 20 mm long utricle and deeply lobed perianth limb straight extended from upper tube and with 5-7 mm long lanceolate-acuminate lobes while
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. yangii" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="yangii">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. yangii</emphasis>
|
||
</taxonomicName>
|
||
has leaves with 6-15-pairs of lateral veins, yellowish-white perianth with distinct purple stripes, 25-35 mm long utricles, internally smooth and pinkish or ochre perianth limb that is deeply 3-lobed and straight extended from upper tube and 16-24 mm long limb lobes.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
Notably, the notch at the bent perianth tube of
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. putalengense" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="putalengense">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. putalengense</emphasis>
|
||
</taxonomicName>
|
||
is obviously U-shaped while it is quite properly V-shaped in the above compared species except
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="I." kingdom="Plantae" lsidName="I. pseudoutriforme" order="Piperales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="species" species="pseudoutriforme">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">I. pseudoutriforme</emphasis>
|
||
</taxonomicName>
|
||
where the U-shaped notch is much narrower than that in the new species. Our field observations provisionally indicate that the notch shape is stable in, and could be typical for,
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Isotrema</emphasis>
|
||
</taxonomicName>
|
||
species. This character is more representative on longitudinal dissection of the perianth tube. However, its value as a supplemental taxonomic character for species identification has not been paid attention to in former
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Isotrema</emphasis>
|
||
</taxonomicName>
|
||
studies and needs further examination.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="71" type="new combinations for some species of isotrema">
|
||
<paragraph pageId="0" pageNumber="71">
|
||
New combinations for some species of
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Isotrema</emphasis>
|
||
</taxonomicName>
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="71">
|
||
As a result of their study,
|
||
<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.401.1.1" author="Zhu, XX" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="71" pagination="1 - 23" refId="B42" refString="Zhu, XX, Li, XQ, Liao, S, Du, C, Wang, Y, Wang, ZH, Yan, J, Zuo, YJ, Ma, JS, 2019a. Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae). Phytotaxa 401 (1): 1 - 23, DOI: https://doi.org/10.11646/phytotaxa.401.1.1" title="Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae)." url="https://doi.org/10.11646/phytotaxa.401.1.1" volume="401" year="2019 a">Zhu et al. (2019a)</bibRefCitation>
|
||
has already transferred almost all species of
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="genus">Aristolochia</taxonomicName>
|
||
subgenus
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia (Siphisia)" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="subGenus" subGenus="Siphisia">Aristolochia Siphisia</taxonomicName>
|
||
to
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema" order="Gentianales" pageId="0" pageNumber="71" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="71">Isotrema</emphasis>
|
||
</taxonomicName>
|
||
. Another four combinations were made for later described species (
|
||
<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.437.3.8" author="Wang, J" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="71" pagination="174 - 176" refId="B32" refString="Wang, J, Ma, JS, Zhu, XX, 2020a. Four new combinations in Isotrema (Aristolochiaceae). Phytotaxa 437 (3): 174 - 176, DOI: https://doi.org/10.11646/phytotaxa.437.3.8" title="Four new combinations in Isotrema (Aristolochiaceae)." url="https://doi.org/10.11646/phytotaxa.437.3.8" volume="437" year="2020 a">Wang et al. 2020a</bibRefCitation>
|
||
). Following this generic concept, here we propose new combinations for the other taxa of the subgenus that were described recently.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |