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<document ID-CLB-Dataset="25203" ID-DOI="http://dx.doi.org/10.3897/phytokeys.133.36704" ID-GBIF-Dataset="8860b6a8-26a7-4e91-9ae1-078c81fdd619" ID-PMC="PMC6811374" ID-Pensoft-Pub="1314-2003-133-95" ID-Pensoft-UUID="B135A1D2A7445D779FA9FCEA6818CFDF" ID-PubMed="31662615" ModsDocID="1314-2003-133-95" checkinTime="1571298298264" checkinUser="pensoft" docAuthor="Zhao, Wan-Yi, Meng, Kai-Kai, Fan, Qiang, Jin, Jian-Hua &amp; Liao, Wen-Bo" docDate="2019" docId="738678EE48E05C44BE10583F1AF5B3AB" docLanguage="en" docName="PhytoKeys 133: 95-103" docOrigin="PhytoKeys 133" docSource="http://dx.doi.org/10.3897/phytokeys.133.36704" docTitle="Saxifraga damingshanensis W. B. Liao, W. Y. Zhao &amp; J. H. Jin 2019, sp. nov." docType="treatment" docVersion="8" id="B135A1D2A7445D779FA9FCEA6818CFDF" lastPageNumber="95" masterDocId="B135A1D2A7445D779FA9FCEA6818CFDF" masterDocTitle="Saxifraga damingshanensis (S. sect. Irregulares, Saxifragaceae), a new species from Guangxi, China" masterLastPageNumber="103" masterPageNumber="95" pageNumber="95" updateTime="1732940632939" updateUser="ExternalLinkService">
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<mods:title id="2F4F29E17650DD04FB15F187D12A253C">Saxifraga damingshanensis (S. sect. Irregulares, Saxifragaceae), a new species from Guangxi, China</mods:title>
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<mods:namePart id="BCC507C24A9E0DD0A383CDEBB843B981">Zhao, Wan-Yi</mods:namePart>
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<mods:namePart id="51F410B55B05F0D6DF9B1AAFD4410176">Meng, Kai-Kai</mods:namePart>
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<mods:namePart id="48EB122C0B3B3A17331C72447374DE0E">Fan, Qiang</mods:namePart>
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<mods:namePart id="03EC81BA9E9B56C6B53BCE5C82E05CFD">Jin, Jian-Hua</mods:namePart>
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<mods:namePart id="7036A915C0FB8E1CB60F32108ABED4A3">Liao, Wen-Bo</mods:namePart>
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<mods:title id="B5D2FB188488F32360F90CFF6FF2E105">PhytoKeys</mods:title>
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<mods:date id="FCED2BB79A969571CE5643EB24485818">2019</mods:date>
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<mods:url id="8B35C9E5B409C43913505325B4912FFD">http://dx.doi.org/10.3897/phytokeys.133.36704</mods:url>
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<mods:classification id="FBACD49DC732F5AED5983B9306DB5FB5">journal article</mods:classification>
<mods:identifier id="9270F9E96774BA5C3F572F23C34CB7B4" type="DOI">http://dx.doi.org/10.3897/phytokeys.133.36704</mods:identifier>
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<treatment id="738678EE48E05C44BE10583F1AF5B3AB" ID-GBIF-Taxon="159745140" LSID="urn:lsid:plazi:treatment:738678EE48E05C44BE10583F1AF5B3AB" httpUri="http://treatment.plazi.org/id/738678EE48E05C44BE10583F1AF5B3AB" lastPageNumber="95" pageId="0" pageNumber="95" scope_family="Saxifragaceae">
<subSubSection id="8DBEF936C927692071A638CEC5975191" pageId="0" pageNumber="95" type="nomenclature">
<paragraph id="F24232B565971F33C8CF44C73DB96DDC" pageId="0" pageNumber="95">
<taxonomicName id="E15D5F37F86D3EA1CBC7A4F6198D3473" ID-CoL="79QRB" LSID="738678EE-48E0-5C44-BE10-583F1AF5B3AB" authority="W. B. Liao, W. Y. Zhao &amp; J. H. Jin" authorityName="W. B. Liao, W. Y. Zhao &amp; J. H. Jin" authorityYear="2019" class="Magnoliopsida" family="Saxifragaceae" genus="Saxifraga" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Saxifraga damingshanensis" order="Saxifragales" pageId="0" pageNumber="95" phylum="Tracheophyta" rank="species" species="damingshanensis" status="sp. nov.">Saxifraga damingshanensis W.B.Liao, W.Y.Zhao &amp; J.H.Jin</taxonomicName>
<taxonomicNameLabel id="F83BEA5AD0B6088F1C1A17AAB0FD67F3" pageId="0" pageNumber="95">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="4646CDCC93002E32A330BC5A5358144A" pageId="0" pageNumber="95" type="materials_examined">
<paragraph id="11895F345FA360276905BF3448FE37EB" pageId="0" pageNumber="95">Type.</paragraph>
<paragraph id="AFEEFFF286619C1CF01F2FB67D9D7C84" pageId="0" pageNumber="95">
China. Guangxi: Nanning city, Damingshan Nature Reserve, Longtou Peak,
<geoCoordinate id="85DD2BF05E01409AE6BAF1C3D5DD0529" degrees="23" direction="north" minutes="22" orientation="latitude" precision="1" seconds="58.48" value="23.382912">23°22'58.48&quot;N</geoCoordinate>
,
<geoCoordinate id="8E95E89C6D5BD560BBB987C49FCAFAD4" degrees="108" direction="east" minutes="30" orientation="longitude" precision="1" seconds="21.56" value="108.50599">108°30'21.56&quot;E</geoCoordinate>
, 1542 m alt., 19 September 2018,
<emphasis id="8D7B144392629DC7AD708880525062C7" italics="true" pageId="0" pageNumber="95">W.Y.Zhao 1208</emphasis>
(Holotype SYS!; Isotypes SYS!, IBSC!). (
<figureCitation id="05C6606E33E729689821D4B2E1C9499E" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Saxifraga damingshanensis A Habit B whole plant C basal leaves rosette with long petiole, plant cover white trichomes D flower and fruit, pedicel slender with short trichomes, filaments clavate E adaxial leaf surface dark green, sparsely glandular piliferous F abaxial leaf surface grey, sparsely glandular piliferous and purple spotted G petiole with glandular piliferous H rhizomes cover sparsely glandular piliferous, petiole base sheathed I adaxial surface of sheath, glabrous, margin with glandular piliferous J abaxial surface of sheath, upper with sparse glandular piliferous." figureDoi="10.3897/phytokeys.133.36704.figure2" httpUri="https://binary.pensoft.net/fig/347246" pageId="0" pageNumber="95" tableDoi="10.3897/phytokeys.133.36704.figure2">Fig. 2</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="B7602FBDC34AD4814BAA8ADB7918BD83" pageId="0" pageNumber="95" type="diagnosis">
<paragraph id="3E71BBF64AC0AF4726DD1F0DA60CCAEE" pageId="0" pageNumber="95">Diagnosis.</paragraph>
<paragraph id="77FFDA37EF6CD63005D5CD09C7455993" pageId="0" pageNumber="95">
<taxonomicName id="F992FBAFAD1EB97C6008A2AEA51B91E3" authorityName="W. B. Liao, W. Y. Zhao &amp; J. H. Jin" authorityYear="2019" class="Magnoliopsida" family="Saxifragaceae" genus="Saxifraga" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Saxifraga damingshanensis" order="Saxifragales" pageId="0" pageNumber="95" phylum="Tracheophyta" rank="species" species="damingshanensis">
<emphasis id="1143EBE1C00EA4A11CA5928FBC8C28E5" italics="true" pageId="0" pageNumber="95">Saxifraga damingshanensis</emphasis>
</taxonomicName>
is morphologically most similar to
<taxonomicName id="64149CB70EF0ACE4E84638BD8F6F7895" lsidName="S. mengtzeana" pageId="0" pageNumber="95" rank="species" species="mengtzeana">
<emphasis id="7144BBB5FD395025B6CE36F513AE91C1" italics="true" pageId="0" pageNumber="95">S. mengtzeana</emphasis>
</taxonomicName>
, but differs by its leaf blade with glandular trichome and purple spots abaxially, short stamens and petal entire.
</paragraph>
</subSubSection>
<subSubSection id="49E6111C0810911ADA0C025A836616DE" pageId="0" pageNumber="95" type="description">
<paragraph id="FF2475DDEEBE9F7B90B360FFF7BA4A19" pageId="0" pageNumber="95">Description.</paragraph>
<paragraph id="DB41BCCE9F1689973F6DDF4F835586DB" pageId="0" pageNumber="95">
Perennial herbs, 15-30 cm tall. Stolons absent. Rhizomes rather short (ca. 0.3-0.7 cm), sparsely glandular trichomes. Basal leaves forming a rosette, petiole 5-15 cm long, fleshy and translucent, sparsely short glandular trichomes (ca. 2 mm); petiole base sheathed, margin with sparsely glandular trichomes; leaf blade rounded or ovate, base cordate to deep cordate, papery or leathery, 2.0-5.7
<normalizedToken id="7AA022A54F9E31E692861596F0413705" originalValue="×">x</normalizedToken>
2.5-5.5 cm, apex obtuse, margin inconspicuous 7-15-lobed with sparsely glandular trichomes, lobes entire, adaxially dark green, densely covered glandular trichomes (2.5-4 mm), abaxially grey, sparsely covered with glandular trichomes (1.5-2.5 mm), densely covered with purple spots; palmate veins 7-11, both surfaces inconspicuous. Cauline leaves 1-2, triangular-lanceolate, 5.0-6.0
<normalizedToken id="C3DD3B28367D9B97829B80FED9EC2A49" originalValue="×">x</normalizedToken>
1.5-2.0 mm, margin with sparsely glandular trichomes. Inflorescence paniculate, 15-30 cm long, 10-35-flowered; branches 4-5 cm, sparsely short glandular trichomes (0.5-1.0 mm), 2-6(-8)-flowered; pedicels slender, 1.5-2.5 cm long, sparsely short glandular trichomes (ca. 0.5 mm); bracts linear, 1.5-2.5
<normalizedToken id="5E67A08B1C595C14AE94567BA9C5B2EF" originalValue="×">x</normalizedToken>
0.5-0.8 mm, margin with short glandular trichomes. Flowers zygomorphic; sepals 5, spreading, narrowly ovate, 2.0-2.5
<normalizedToken id="82EDD90CA594F313D6D998D28DCE0C67" originalValue="×">x</normalizedToken>
1.0 mm, apex obtuse, base connate, adaxially glabrous, abaxial surface and margin with sparsely short glandular trichome, becoming denser proximally, 3 veins inconspicuous. Petals 5, white; shortest 3 petals equal, ovate, base with yellow spots, 3-3.5
<normalizedToken id="2EF37A6BF739FA5BD8D71C00BFFBDCAE" originalValue="×">x</normalizedToken>
1.5 mm, apex acute, base rounded, triplinerved; the other two petals lanceolate, first longest petal lanceolate, 18-22
<normalizedToken id="D2B6C02FDF1B00B1EC98B144ECA4D94D" originalValue="×">x</normalizedToken>
1.5-2.5 mm, apex acuminate, margin entire, glabrous, 3-veined; second longest petal narrowly ovate, 1.3-1.7
<normalizedToken id="DD578B04E18EDEC8FF8168614BC95CC2" originalValue="×">x</normalizedToken>
0.2 cm, apex acuminate, margin entire, glabrous, 3-veined. Stamens 10, filaments clavate, 3.5-4.5 mm long. Ovary ovoid, 1.5-2.5 mm long; disc obscure; carpels 2, proximally connate about 3/4; styles 2, divergent, 1.5-2 mm long. Capsule ovoid, 4-5
<normalizedToken id="FDB2909491E3A89CD74EB9720093334E" originalValue="×">x</normalizedToken>
3-4 mm. Seeds elongate-ellipsoid, yellowish-brown or dark brown, the two ends slightly bent, ca. 0.6 mm, surface 3-ribbed.
</paragraph>
</subSubSection>
<subSubSection id="5B39720C6814F319BD0AD0108E847BA7" pageId="0" pageNumber="95" type="phenology">
<paragraph id="E2DAD56EA0FB42E2E5740CDCE91D8318" pageId="0" pageNumber="95">Phenology.</paragraph>
<paragraph id="4BDF1B8223FAF24BC63973B90C25957B" pageId="0" pageNumber="95">Flowering from August to October, fruiting from September to November.</paragraph>
</subSubSection>
<subSubSection id="E5DBCBC7052A78ECC28EE13CC0729610" pageId="0" pageNumber="95" type="etymology">
<paragraph id="0E5C73B627A200889B628D84E6120730" pageId="0" pageNumber="95">Etymology.</paragraph>
<paragraph id="45018D61089F25EF88598D65F2A29DD9" pageId="0" pageNumber="95">
The species epithet is based on the mountain name, Damingshan and the Latin suffix, -
<emphasis id="A375C7B457040CFC96AA3C709EFC024E" italics="true" pageId="0" pageNumber="95">ensis</emphasis>
, of origin, where the new species was collected.
</paragraph>
</subSubSection>
<subSubSection id="ED7BD59FB3B7F6FB53567FC126CE48CF" pageId="0" pageNumber="95" type="distribution">
<paragraph id="017C88B645975C215E2724C46F1752A0" pageId="0" pageNumber="95">Distribution, ecology and conservation status.</paragraph>
<paragraph id="4E594311A21741DDE35C1A50628954D5" pageId="0" pageNumber="95">
Only three populations of
<taxonomicName id="BB79A5FBDDC0795015C881454BD45E25" authorityName="W. B. Liao, W. Y. Zhao &amp; J. H. Jin" authorityYear="2019" class="Magnoliopsida" family="Saxifragaceae" genus="Saxifraga" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Saxifraga damingshanensis" order="Saxifragales" pageId="0" pageNumber="95" phylum="Tracheophyta" rank="species" species="damingshanensis">
<emphasis id="1758BB71E9B1292E2215E5CDD55037A1" italics="true" pageId="0" pageNumber="95">Saxifraga damingshanensis</emphasis>
</taxonomicName>
were discovered from Damingshan National Nature Reserve, Guangxi Province. It was observed to grow on damp cliffs and rocks in broad-leaved forests at altitudes between 1300 and 1650 m. Its known localities are well protected and more field investigations are needed to determine its wild distribution. Therefore, we suggest listing the new species as Data Deficient (DD) based on the IUCN Red List Criteria (
<bibRefCitation id="52720CF348CAD2D81D182287CE9BC7FC" author="IUCN" journalOrPublisher="Phytochemical Bulletin" pageId="0" pageNumber="95" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B4" refString="IUCN, 2019. Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Committee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf" title="Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Committee." url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2019">IUCN 2019</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="5A1BD557FD085F291CAFFAFD1F269F5E" pageId="0" pageNumber="95" type="materials_examined">
<paragraph id="2E08A20B260C75F464F9CF1A6C282C7E" pageId="0" pageNumber="95">Additional specimens examined (paratypes).</paragraph>
<paragraph id="16E80261EFEF06425840DEF5F0EC4B0B" pageId="0" pageNumber="95">
China. Guangxi: Nanning city, Damingshan Nature Reserve, Longtou Peak, Blackwood cliff,
<geoCoordinate id="DEE5F0B9242C18E9FB5FCC01537C07D0" degrees="23" direction="north" minutes="22" orientation="latitude" precision="1" seconds="58.48" value="23.382912">23°22'58.48&quot;N</geoCoordinate>
,
<geoCoordinate id="067280F4071620545419D711FB3F8B43" degrees="108" direction="east" minutes="30" orientation="longitude" precision="1" seconds="21.56" value="108.50599">108°30'21.56&quot;E</geoCoordinate>
, 1542 m alt., 19 September 2018,
<emphasis id="CB01E38F1ACF3810D5314A1DBD80B63F" italics="true" pageId="0" pageNumber="95">W.Y.Zhao 1209</emphasis>
(SYS!); same locality, 1500 m alt., 19 September 2018,
<emphasis id="3B5F13F593EF3C093915224E59A25C61" italics="true" pageId="0" pageNumber="95">W.Y.Zhao 1210</emphasis>
(SYS!); same locality, 1522 m alt., 19 September 2018,
<emphasis id="BD3A2B9EC943BAB54195FC9F41DA229F" italics="true" pageId="0" pageNumber="95">W.Y.Zhao 1211</emphasis>
(SYS!); same locality,1480 m alt., 19 September 2018,
<emphasis id="17651D221E418F24A00669C328CF8827" italics="true" pageId="0" pageNumber="95">W.Y.Zhao 1212</emphasis>
(SYS!); Wuming county, Xiaolu village, Damingshan, 1420 m alt., 26 August 1958,
<emphasis id="DE995F6BA1985F76A365E9FF5C9DA841" italics="true" pageId="0" pageNumber="95">Y.C.Chen 325</emphasis>
(IBK18155!).
</paragraph>
<caption id="A7DD80E3E1D69734DB143EE255D35D93" doi="10.3897/phytokeys.133.36704.figure2" httpUri="https://binary.pensoft.net/fig/347246" pageId="0" pageNumber="95" start="Figure 2" startId="F2">
<paragraph id="16F564F51E03D4B67A5DB561BEB51B09" pageId="0" pageNumber="95">
<emphasis id="EF1F690B408FBE7CFAD4483D2F62082F" bold="true" pageId="0" pageNumber="95">Figure 2.</emphasis>
<taxonomicName id="B3A7AACF903E4307D016512305524CA8" authorityName="W. B. Liao, W. Y. Zhao &amp; J. H. Jin" authorityYear="2019" class="Magnoliopsida" family="Saxifragaceae" genus="Saxifraga" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Saxifraga damingshanensis" order="Saxifragales" pageId="0" pageNumber="95" phylum="Tracheophyta" rank="species" species="damingshanensis">
<emphasis id="AC929B2837EC6D4A2FE2A74CD01276CA" italics="true" pageId="0" pageNumber="95">Saxifraga damingshanensis</emphasis>
</taxonomicName>
<emphasis id="2D4D6E022417FB99E652B02927376467" bold="true" pageId="0" pageNumber="95">A</emphasis>
Habit
<emphasis id="878BBDB42BB2E5D59AE1B975D588CCAB" bold="true" pageId="0" pageNumber="95">B</emphasis>
whole plant
<emphasis id="63088D196F4ABD01844447E41F9C9F4B" bold="true" pageId="0" pageNumber="95">C</emphasis>
basal leaves rosette with long petiole, plant cover white trichomes
<emphasis id="22C96E233D55B8D2F49CC560A33B9A0C" bold="true" pageId="0" pageNumber="95">D</emphasis>
flower and fruit, pedicel slender with short trichomes, filaments clavate
<emphasis id="745082BCB8EE411F2500015CE4065F06" bold="true" pageId="0" pageNumber="95">E</emphasis>
adaxial leaf surface dark green, sparsely glandular piliferous
<emphasis id="E2A00E0629940B98C492D5AB86AB2538" bold="true" pageId="0" pageNumber="95">F</emphasis>
abaxial leaf surface grey, sparsely glandular piliferous and purple spotted
<emphasis id="9F7606756545F5B5B6B450BE2B58ABBB" bold="true" pageId="0" pageNumber="95">G</emphasis>
petiole with glandular piliferous
<emphasis id="72A23EC7333388FABD71120E27AFE54D" bold="true" pageId="0" pageNumber="95">H</emphasis>
rhizomes cover sparsely glandular piliferous, petiole base sheathed
<emphasis id="0BB7B32E4B9000EA9D73B07D4AFB0F33" bold="true" pageId="0" pageNumber="95">I</emphasis>
adaxial surface of sheath, glabrous, margin with glandular piliferous
<emphasis id="867F2723E7377B47E10155FCC9748BA8" bold="true" pageId="0" pageNumber="95">J</emphasis>
abaxial surface of sheath, upper with sparse glandular piliferous.
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>