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<document ID-CLB-Dataset="21090" ID-DOI="http://dx.doi.org/10.3897/phytokeys.157.32729" ID-GBIF-Dataset="b4531b78-9d4f-4eb7-86a5-da18bdd54bde" ID-PMC="PMC7467978" ID-Pensoft-Pub="1314-2003-157-155" ID-Pensoft-UUID="49F56C5FBB1E55988A07C709E9639479" ID-PubMed="32934453" ModsDocID="1314-2003-157-155" checkinTime="1598489641175" checkinUser="pensoft" docAuthor="Chen, Wen-Hong, Guo, Shi-Wei, Wu, Jian-Yong, Chen, Li &amp; Shui, Yu-Min" docDate="2020" docId="E8C0A97D606A583BAA5BF6A9F127E687" docLanguage="en" docName="PhytoKeys 157: 155-166" docOrigin="PhytoKeys 157" docSource="http://dx.doi.org/10.3897/phytokeys.157.32729" docTitle="Allocheilos rubroglandulosus W. H. Chen &amp; Y. M. Shui 2020, sp. nov." docType="treatment" docVersion="6" id="49F56C5FBB1E55988A07C709E9639479" lastPageNumber="155" masterDocId="49F56C5FBB1E55988A07C709E9639479" masterDocTitle="Two new species of Allocheilos (Gesneriaceae) from the karst regions in Yunnan, China" masterLastPageNumber="166" masterPageNumber="155" pageNumber="155" updateTime="1732844401059" updateUser="ExternalLinkService">
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<mods:title id="92052A0BBE2630FD0D8D43D74163413A">Two new species of Allocheilos (Gesneriaceae) from the karst regions in Yunnan, China</mods:title>
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<mods:namePart id="73B90E7C3ABBD61774D314F7A92D80F9">Chen, Wen-Hong</mods:namePart>
<mods:affiliation id="2D29B93C47E274D82DB4F2C75BB0AA18">CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, Kunming 650201, Yunnan, China &amp; Karst Conservation Initiative of Yunnan, Kunming 650201, Yunnan, China</mods:affiliation>
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<mods:namePart id="7680E3F68E333CAFDDD37FB28083C2F0">Guo, Shi-Wei</mods:namePart>
<mods:affiliation id="9A2B9087D5C1172DA9850E44982CC366">CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, Kunming 650201, Yunnan, China &amp; University of the Chinese Academy of Sciences, Beijing 100049, China</mods:affiliation>
<mods:nameIdentifier id="79F6CBB77124EE976ED41D0CD1B110E1" type="orcid">https://orcid.org/0000-0001-6987-1240</mods:nameIdentifier>
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<mods:namePart id="C6B09A9B0E1A28AEBCB9B2D970E80776">Wu, Jian-Yong</mods:namePart>
<mods:affiliation id="2D7CA417984DE3DCBE78E3AB2860676A">Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China</mods:affiliation>
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<mods:namePart id="5C52FDAB8F1CDBE6D945768C0232AD34">Chen, Li</mods:namePart>
<mods:affiliation id="ECEE0E08C9BE644788CD13F20E447199">CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, Kunming 650201, Yunnan, China &amp; School of Life Sciences, Yunnan University, Kunming 650091, Yunnan, China</mods:affiliation>
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<mods:namePart id="F2263186C8D020C57BB554A835DEEEBE">Shui, Yu-Min</mods:namePart>
<mods:affiliation id="F2BF46C8AF38BFD90A1DCE4DA5E5547F">CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, Kunming 650201, Yunnan, China &amp; Karst Conservation Initiative of Yunnan, Kunming 650201, Yunnan, China</mods:affiliation>
<mods:nameIdentifier id="594AC30F43A692F16803D4BC3979808D" type="email">ymshui@mail.kib.ac.cn</mods:nameIdentifier>
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<mods:classification id="1ECDF428737FEB6DC8DE9FF6E2CB0550">journal article</mods:classification>
<mods:identifier id="7CCC8D562193B0165192CB4E2314DE53" type="DOI">http://dx.doi.org/10.3897/phytokeys.157.32729</mods:identifier>
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<treatment id="E8C0A97D606A583BAA5BF6A9F127E687" ID-GBIF-Taxon="167369827" LSID="urn:lsid:plazi:treatment:E8C0A97D606A583BAA5BF6A9F127E687" httpUri="http://treatment.plazi.org/id/E8C0A97D606A583BAA5BF6A9F127E687" lastPageNumber="155" pageId="0" pageNumber="155" scope_family="Gesneriaceae">
<subSubSection id="825F2623B1CD858F6827F35A51385F38" pageId="0" pageNumber="155" type="nomenclature">
<paragraph id="01698A11F134E1B0546E868C5E99AA7C" pageId="0" pageNumber="155">
<taxonomicName id="B38AAB66629E21F567B860E052AE6F42" ID-CoL="BVFQ" LSID="E8C0A97D-606A-583B-AA5B-F6A9F127E687" authority="W. H. Chen &amp; Y. M. Shui" authorityName="W. H. Chen &amp; Y. M. Shui" authorityYear="2020" class="Magnoliopsida" family="Gesneriaceae" genus="Allocheilos" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Allocheilos rubroglandulosus" order="Lamiales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="rubroglandulosus" status="sp. nov.">Allocheilos rubroglandulosus W.H. Chen &amp; Y.M. Shui</taxonomicName>
<taxonomicNameLabel id="9784CA5F5DFFBB383FFBEFD4804CD57C" pageId="0" pageNumber="155">sp. nov.</taxonomicNameLabel>
<figureCitation id="F476B53F9CBC6FA81B70B8C27F8A9870" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Vegetative morphology of Allocheilos rubroglandulosus W. H. Chen &amp; Y. M. Shui, sp. nov. (From holotype, photographed by S. W. Guo and Y. M. Shui) A habitat and plants B adaxial surface of the round leave, arrow indicating the overlapped leaf blade at base C abaxial surface of the round leave, arrows indicating the reflected margin D adaxial surface of the broadly ovate leave with overlapped basal lobes of the leave annotated by arrow E abaxial surface of the broadly ovate leave, arrow indicating the reflected margin F hairs of petiole and main nerves on the abaxial surface of the round leaves G margin and hairs on the adaxial surface of the round leave H margin and hairs on the abaxial surface of the round leaf, arrow indicating the reflected margin." figureDoi="10.3897/phytokeys.157.32729.figure4" httpUri="https://binary.pensoft.net/fig/445931" pageId="0" pageNumber="155">Figs 4</figureCitation>
<figureCitation id="6196AC821B5B31FB9EE9118F2F771381" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Flower morphology of Allocheilos rubroglandulosus W. H. Chen &amp; Y. M. Shui, sp. nov. (From holotype, photographed by S. W. Guo and Y. M. Shui) A inflorescence B right part of the inflorescence C left part of the inflorescence D lateral view of the leaf part of the inflorescence E face view of the flower F face view indicating 3 staminodes, middle white and lateral 2 red on the top G lateral view of flower indicating stamens H opened corolla indicating the stamens and staminodes and the swollen nodes at the base of filaments. Notes: at anther, br bract; cx calyx lobe, dc disc, fm filament, gl glandular, sd staminode, sl style, sm stigma, sn swollen nodes at base of filament." figureDoi="10.3897/phytokeys.157.32729.figure5" httpUri="https://binary.pensoft.net/fig/445932" pageId="0" pageNumber="155">, 5</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="3548BB395D21638848EECE79A2CC9AC7" pageId="0" pageNumber="155" type="diagnosis">
<paragraph id="DB7C1A45FD587169271EA89CF0566A1A" pageId="0" pageNumber="155">Diagnosis.</paragraph>
<paragraph id="3EF48E449E704B1CBED4E58B5F3E9CF1" pageId="0" pageNumber="155">
The new species is similar to
<taxonomicName id="0352297A108C4D95AC01F3504FA8E7A7" lsidName="A. maguanensis" pageId="0" pageNumber="155" rank="species" species="maguanensis">
<emphasis id="64A8B879D7B8EB349BA96D9842CEAE24" italics="true" pageId="0" pageNumber="155">A. maguanensis</emphasis>
</taxonomicName>
W.H.Chen &amp; Y.M.Shui with three major staminodes and style longer than ovary, but differs in its elliptic bracts (
<emphasis id="2F262A87FEAD573A446D0D385412DC17" italics="true" pageId="0" pageNumber="155">vs.</emphasis>
broadly ovate to rounded), triangular calyx lobes awny at the apex (
<emphasis id="F7993F15CB4CDF428160062490A91C59" italics="true" pageId="0" pageNumber="155">vs.</emphasis>
elliptic and beaked at the apex), and lateral staminodes with red glands (
<emphasis id="9D6A14A24119AD32F6AE92863F964274" italics="true" pageId="0" pageNumber="155">vs.</emphasis>
without red glands).
</paragraph>
<caption id="96553BFC26610D1AD6B6CE9D609FFE0B" doi="10.3897/phytokeys.157.32729.figure4" httpUri="https://binary.pensoft.net/fig/445931" pageId="0" pageNumber="155" start="Figure 4" startId="F4">
<paragraph id="DCE51EE64D99ED7991EC54FF70528190" pageId="0" pageNumber="155">
<emphasis id="6D0DD21913574CE8EDF92EFCD15A141F" bold="true" pageId="0" pageNumber="155">Figure 4.</emphasis>
Vegetative morphology of
<taxonomicName id="5DC93E26B64048409B93452087D7BB86" authorityName="W. H. Chen &amp; Y. M. Shui" authorityYear="2020" class="Magnoliopsida" family="Gesneriaceae" genus="Allocheilos" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Allocheilos rubroglandulosus" order="Lamiales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="rubroglandulosus">
<emphasis id="6DE82CEFFF028B42B1A86823557FAD15" italics="true" pageId="0" pageNumber="155">Allocheilos rubroglandulosus</emphasis>
</taxonomicName>
W.H. Chen &amp; Y.M. Shui, sp.nov. (From holotype, photographed by S. W. Guo and Y. M. Shui)
<emphasis id="33FDD25B3101EAE79FA3F5F59D462F18" bold="true" pageId="0" pageNumber="155">A</emphasis>
habitat and plants
<emphasis id="ABDC97F7EEF6F3D457355AA57643CD13" bold="true" pageId="0" pageNumber="155">B</emphasis>
adaxial surface of the round leave, arrow indicating the overlapped leaf blade at base
<emphasis id="4D9CB8D9E256F671AD9932A3ACB81CD6" bold="true" pageId="0" pageNumber="155">C</emphasis>
abaxial surface of the round leave, arrows indicating the reflected margin
<emphasis id="F44F30D083740AF6A9AECAAE24AE0E02" bold="true" pageId="0" pageNumber="155">D</emphasis>
adaxial surface of the broadly ovate leave with overlapped basal lobes of the leave annotated by arrow
<emphasis id="73035A916D695EF4959BCAD69DBE257A" bold="true" pageId="0" pageNumber="155">E</emphasis>
abaxial surface of the broadly ovate leave, arrow indicating the reflected margin
<emphasis id="F3602757567D6FA1930603D7ABEFDBB7" bold="true" pageId="0" pageNumber="155">F</emphasis>
hairs of petiole and main nerves on the abaxial surface of the round leaves
<emphasis id="A209FFF0EF1384090350423BDE88C548" bold="true" pageId="0" pageNumber="155">G</emphasis>
margin and hairs on the adaxial surface of the round leave
<emphasis id="3FD56727AAF2B38288EFA2AC43AEEE8F" bold="true" pageId="0" pageNumber="155">H</emphasis>
margin and hairs on the abaxial surface of the round leaf, arrow indicating the reflected margin.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="4D14D69560F6281E2959183EA41F2AFF" pageId="0" pageNumber="155" type="materials_examined">
<paragraph id="2A61983B5D7ED7F9E12072A1465C1763" pageId="0" pageNumber="155">Type.</paragraph>
<paragraph id="B8D2907FFC28A395CE0C377BC50C3604" pageId="0" pageNumber="155">
China. Yunnan province, Mengzi county, Shuitian community,
<geoCoordinate id="F69C148038ADECF721F90BB1DEF6D9AA" degrees="23" direction="north" minutes="08" orientation="latitude" precision="15" seconds="35" value="23.143055">23°08'35&quot;N</geoCoordinate>
,
<geoCoordinate id="374E6444F429DA40755C3CB16DDE72EF" degrees="103" direction="east" minutes="21" orientation="longitude" precision="15" seconds="46" value="103.36278">103°21'46&quot;E</geoCoordinate>
, on the cliffs of a limestone sink-hole, elev. ca. 1410 m, in flower, 6 November 2017,
<emphasis id="6A8A7116D71D6BE64F205C3BBF7793BF" italics="true" pageId="0" pageNumber="155">Y. M. Shui et al. B2017-1287</emphasis>
(holotype KUN; isotype PE).
</paragraph>
<paragraph id="A67557228717503B875ECBCB47E55D49" pageId="0" pageNumber="155">
Herb perennial. Rhizome short, 6-7 mm in diam., stem absent. Leaves 8-12 in mature individuals, basal, rosette; petiole 9.4-11.6 cm long, densely brown-red villous; blade herbaceous, round or broadly ovate, 4.5-13
<normalizedToken id="8A72B68861DF2FBC4C9D542C9943825F" originalValue="×">x</normalizedToken>
3.6-9.8 cm, base obliquely cordate, apex round or obtuse, margin shallowly crenulate, slightly reflected, adaxially densely depressed white pubescent, abaxially densely brown-red villous especially along the nerves; venation palmate, lateral veins 4-7 on each side of midrib, adaxially slightly depressed and abaxially prominent. Inflorescences axillary, 10-16-flowered cymes; peduncles 8-10 cm long, densely brown-red villous; bracts 2, opposite, elliptic, 5.6-6.4
<normalizedToken id="8713FDC8E3EA32884BAC78B35A0FD9B8" originalValue="×">x</normalizedToken>
2.3-2.6 mm, adaxially subglabrous, abaxially sparsely brownish hispid, margin obscurely and irregularly crenulate and ciliate above the middle, apex acute; bracteoles 2, oblong-lanceolate, ca. 5
<normalizedToken id="E59B8480ECC4522E3B045C86120DA1B3" originalValue="×">x</normalizedToken>
2 mm, adaxially subglabrous, abaxially densely brownish hispid; pedicel 0.6-1.8 cm long, brown-red hispid. Calyx actinomorphic, 5-parted to the base, segments lanceolate or triangular, 4.5-5.2
<normalizedToken id="2E7ACBBDC4012F91643C299EBD342371" originalValue="×">x</normalizedToken>
2.1-2.2 mm, apex acuminate or caudate, margin entire, abaxially densely white pubescent and brown-red villous, adaxially glabrous. Corolla white or pinkish at the base, broadly campanulate, zygomorphic, ca. 1.1 cm long, ca. 0.4 cm wide at the throat, outside white glandular pubescent, inside glabrous, tube 3.2-3.5 mm long; limb 2-lipped; adaxial lip 8.8-9.2
<normalizedToken id="A173099227215636E63478F388766A89" originalValue="×">x</normalizedToken>
8.8-9.5 mm, slightly swollen at the base, ca. 6 mm high, ca. 7 mm wide, slightly longer than abaxial lip, 4-lobed, lobes triangular, 3.1-3.3
<normalizedToken id="44027A9051639455CC1DF762D79163E6" originalValue="×">x</normalizedToken>
1.4-1.6 mm, apex obtuse, middle lobes 2 symmetric, lateral lobes 2 oblique; abaxial lip narrowly triangular, undivided, 8.1-8.5
<normalizedToken id="2951A3FE5A50DDC41AB2BE83F66403B6" originalValue="×">x</normalizedToken>
2.5-2.9 mm, apex acute. Stamens 2, adnate ca. 2 mm above base; anthers 2, coherent laterally; filaments sparsely puberulent, base slightly swollen, 7-8 mm long; staminodes 3, lateral 2 red on the top, ca. 1.5 mm long, adnate to ca. 1.5 mm above base, middle white on the top, ca. 3.1 mm long. Disc ring-like, yellow, 0.7-0.8 mm high, margin entire. Pistil 1.4-1.6 cm long; ovary oblong, 3-4 mm long, sparsely pubescent; style 7-8 mm long, sparsely pubescent; stigma 1, capitate. Dry capsule straight, elliptic, 7-8
<normalizedToken id="FD87FA747F9D27EF7777349F81695924" originalValue="×">x</normalizedToken>
2.1-2.3 mm, dehiscing loculicidally, valves 2.
</paragraph>
</subSubSection>
<subSubSection id="1816E50017D8D3A51D345F0AD3D83130" pageId="0" pageNumber="155" type="phenology">
<paragraph id="EC96DFBA92A42B1AABC36B52BC137835" pageId="0" pageNumber="155">Phenology.</paragraph>
<paragraph id="CA8301D053602885704390665D1D75B0" pageId="0" pageNumber="155">Flowering is from October to November (June to July in the greenhouse).</paragraph>
</subSubSection>
<subSubSection id="BB7C75B71A70C9FC08417B30907207A0" pageId="0" pageNumber="155" type="etymology">
<paragraph id="24538A85F379945035F49276CF62FBF2" pageId="0" pageNumber="155">Etymology.</paragraph>
<paragraph id="DD8419AF67CCFC5E9AD35800D1B5CAF0" pageId="0" pageNumber="155">
The epithet refers to the red glands on the top of lateral staminodes, which is an indicator to lead the pollinators to find the nectar. Hitherto, the character was first observed in
<taxonomicName id="FC6355E1BB9E65D07AD15DE30622BE2D" authorityName="W.T.Wang" authorityYear="1983" class="Magnoliopsida" family="Gesneriaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Lamiales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="family">Gesneriaceae</taxonomicName>
(
<bibRefCitation id="BE723390C646A6A7CF625EB6CAF2EA7E" DOI="https://doi.org/10.1007/978-3-642-18617-2_8" author="Weber, A" editor="Kubitzki, K" journalOrPublisher="Vol. 7. Dicotyledons. Lamiales (except Acanthaceae including Avicenniaceae). Springer, Berlin / Heidelberg" pageId="0" pageNumber="155" pagination="63 - 185" refId="B15" refString="Weber, A, 2004. Gesneriaceae. In: Kubitzki, K, Kadereit, J, Eds., The Families and Genera of Vascular Plants. Vol. 7. Dicotyledons. Lamiales (except Acanthaceae including Avicenniaceae). Springer, Berlin/Heidelberg: 63 - 185, DOI: https://doi.org/10.1007/978-3-642-18617-2_8" title="Gesneriaceae." url="https://doi.org/10.1007/978-3-642-18617-2_8" volumeTitle="The Families and Genera of Vascular Plants." year="2004">Weber 2004</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="A5F5FA384D832538727879C7F11B77A6" pageId="0" pageNumber="155" type="distribution">
<paragraph id="4254AD25936623276A2FD659BDC2D482" pageId="0" pageNumber="155">Distribution and ecology.</paragraph>
<paragraph id="EEF480F16F96C571378EEBE0E5267D61" pageId="0" pageNumber="155">
The new species is only distributed in Mengzi county, Yunnan, southwestern China. It grows in deep limestone sinkholes. The adjacent habitat has been disturbed by local people for the purpose of planting corn. The main accompanying plants are
<taxonomicName id="5A27D4D6E276B37482C1988781A87484" authorityName="Irmsch" authorityYear="1951" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia laminariae" order="Cucurbitales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="laminariae">
<emphasis id="0AC13FEC01384915079FEFA00797B91D" italics="true" pageId="0" pageNumber="155">Begonia laminariae</emphasis>
</taxonomicName>
Irmscher in
<taxonomicName id="E0FA398C53CFF0D191F6406434143238" class="Magnoliopsida" family="Begoniaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Cucurbitales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="family">Begoniaceae</taxonomicName>
,
<taxonomicName id="098C8831D17EE6AF389F4CD6FC26F9F5" class="Magnoliopsida" family="Balsaminaceae" genus="Impatiens" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Impatiens apalophylla" order="Ericales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="apalophylla">
<emphasis id="BF0805840F30AFACAA851237665013DD" italics="true" pageId="0" pageNumber="155">Impatiens apalophylla</emphasis>
</taxonomicName>
J.D.Hooker in
<taxonomicName id="EC981236D2A30684A0BCCA44E099DA0B" class="Magnoliopsida" family="Balsaminaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Ericales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="family">Balsaminaceae</taxonomicName>
,
<taxonomicName id="40B2AB4A0FE07E62DA80816EA6241098" authorityName="Bak" authorityYear="1888" class="Polypodiopsida" family="Pteridaceae" genus="Pteris" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Pteris deltodon" order="Polypodiales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="deltodon">
<emphasis id="4A328F2B8A94FA70F7D620D362F09362" italics="true" pageId="0" pageNumber="155">Pteris deltodon</emphasis>
</taxonomicName>
Baker in
<taxonomicName id="3BCB9B6E9FDEB364E10A2DE974EE633C" family="Pteridiaceae" lsidName="" pageId="0" pageNumber="155" rank="family">Pteridiaceae</taxonomicName>
,
<taxonomicName id="27A8630C2C35D1BF4F80F5ACF3B54150" authorityName="Lecoy. ex Oliv" authorityYear="1888" class="Magnoliopsida" family="Ranunculaceae" genus="Thalictrum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Thalictrum ichangense" order="Ranunculales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="ichangense">
<emphasis id="D972D8A6928813A1068B57E196887536" italics="true" pageId="0" pageNumber="155">Thalictrum ichangense</emphasis>
</taxonomicName>
Lecoyer ex Oliver in
<taxonomicName id="78EC77E93F310F7A399318859B975091" class="Magnoliopsida" family="Ranunculaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Ranunculales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="family">Ranunculaceae</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="754ACFD83D78546ED9BB9213106EF906" pageId="0" pageNumber="155" type="provisional conservation status">
<paragraph id="16814311534B62371C91C35CF3991B75" pageId="0" pageNumber="155">Provisional conservation status.</paragraph>
<paragraph id="FE1B01A79C79B4DBBE303A09322C2281" pageId="0" pageNumber="155">
Based on observations around the locality, this new species was found only in one limestone sinkhole with around 30 mature individuals on the cliffs in three smaller populations. Thus, as the above new species, its further exploration should be conducted while an urgent project is needed for this rare species with extremely small populations (
<bibRefCitation id="54E06E29480C7D77CDC5BB930EF39368" DOI="https://doi.org/10.1007/s10531-013-0434-3" author="Ma, YP" journalOrPublisher="Biodiversity and Conservation" pageId="0" pageNumber="155" pagination="803 - 809" refId="B8" refString="Ma, YP, Chen, G, Grumbine, RE, Dao, ZL, Sun, WB, Guo, HJ, 2013. Conserving plant species with extremely small populations (PSESP) in China. Biodiversity and Conservation 22 (3): 803 - 809, DOI: https://doi.org/10.1007/s10531-013-0434-3" title="Conserving plant species with extremely small populations (PSESP) in China." url="https://doi.org/10.1007/s10531-013-0434-3" volume="22" year="2013">Ma et al. 2013</bibRefCitation>
). So far, the species can be provisionally considered as Critically Endangered, CR: B1b (v) + 2b (v). (
<bibRefCitation id="F57F811C4D4D03777886208A2761A78F" author="IUCN" journalOrPublisher="IUCN, Gland, Switzerland and Cambridge" pageId="0" pageNumber="155" publicationUrl="https://portals.iucn.org/library/sites/library/files/documents/RL-2001-001-2nd.pdf" refId="B4" refString="IUCN, 2012. IUCN red list categories and criteria, Version 3.1. 2nd edition. IUCN, Gland, Switzerland and Cambridge, https://portals.iucn.org/library/sites/library/files/documents/RL-2001-001-2nd.pdf" title="IUCN red list categories and criteria, Version 3.1. 2 nd edition." url="https://portals.iucn.org/library/sites/library/files/documents/RL-2001-001-2nd.pdf" year="2012">IUCN 2012</bibRefCitation>
;
<bibRefCitation id="79AB5073366C342F7AAD6FEECBC43CD4" author="IUCN Standards and Petitions Subcommittee" journalOrPublisher="IUCN, Gland, Switzerland and Cambridge" pageId="0" pageNumber="155" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B5" refString="IUCN Standards and Petitions Subcommittee, 2017. Guidelines for Using the IUCN Red List Categories and Criteria, version 13. Prepared by Standards and Petitions Subcommittee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf" title="Guidelines for Using the IUCN Red List Categories and Criteria, version 13. Prepared by Standards and Petitions Subcommittee." url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2017">IUCN Standards and Petitions Subcommittee 2017</bibRefCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="53ACC4506AF7CC59E95F6D52EEED1543" pageId="0" pageNumber="155" type="additional examined specimens">
<paragraph id="3BE3B76C62693246531923D008B3C1B9" pageId="0" pageNumber="155">Additional examined specimens.</paragraph>
<paragraph id="E7FD72C21F6B4B0186907D048304BA3A" pageId="0" pageNumber="155">
China. Yunnan province, Mengzi county, Shuitian community, elev. ca. 1410 m, fruits dry, 6 November 2017,
<emphasis id="37E50D5A149AEFBDAA20E084CD7DF60D" italics="true" pageId="0" pageNumber="155">Y. M. Shui et al. B2017-1296</emphasis>
(KUN); ibid,
<emphasis id="C2A8BA3C1BD62C4EB0272D91FFB1CCDE" italics="true" pageId="0" pageNumber="155">Y. M. Shui et al. B2017-1298</emphasis>
(KUN).
</paragraph>
</subSubSection>
<subSubSection id="F3D4780279841A7C9EFC1E06069A0977" pageId="0" pageNumber="155" type="discussion">
<paragraph id="B819E689FD35016F955446A7B5E0DDD7" pageId="0" pageNumber="155">Discussion.</paragraph>
<paragraph id="0E2240A831AA5B9AEE457666B9EAD7B5" pageId="0" pageNumber="155">
At the background of the white flowers, two red glands at the top of staminodes are an important indicator for the pollinators to visit the plants. It is obvious that nectars are hidden at the back of the indicator (Fig.
<figureCitation id="AEF19905362388C26A3D2B4053EC0BAF" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Flower morphology of Allocheilos rubroglandulosus W. H. Chen &amp; Y. M. Shui, sp. nov. (From holotype, photographed by S. W. Guo and Y. M. Shui) A inflorescence B right part of the inflorescence C left part of the inflorescence D lateral view of the leaf part of the inflorescence E face view of the flower F face view indicating 3 staminodes, middle white and lateral 2 red on the top G lateral view of flower indicating stamens H opened corolla indicating the stamens and staminodes and the swollen nodes at the base of filaments. Notes: at anther, br bract; cx calyx lobe, dc disc, fm filament, gl glandular, sd staminode, sl style, sm stigma, sn swollen nodes at base of filament." figureDoi="10.3897/phytokeys.157.32729.figure5" httpUri="https://binary.pensoft.net/fig/445932" pageId="0" pageNumber="155">5C</figureCitation>
).The discovery will provide us an opportunity to explore the diversity and evolution of staminodes of the genus in
<taxonomicName id="674182634B653D1DCC9530BBFD656CC0" class="Magnoliopsida" family="Gesneriaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Lamiales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="family">Gesneriaceae</taxonomicName>
and the other groups endemic to the karst regions in China and the adjacent countries (Laos, Myanmar, Thailand and Vietnam).
</paragraph>
<caption id="BCC795E0CD2280548DA5BC18E62763F1" doi="10.3897/phytokeys.157.32729.figure5" httpUri="https://binary.pensoft.net/fig/445932" pageId="0" pageNumber="155" start="Figure 5" startId="F5">
<paragraph id="57775BCD9F7E3523EB8AB0AA38CD11A3" pageId="0" pageNumber="155">
<emphasis id="41D920FDC98A1B8A0A2E17807B6776FB" bold="true" pageId="0" pageNumber="155">Figure 5.</emphasis>
Flower morphology of
<taxonomicName id="15634AE035118F04B1C9A3E7EEB8D23E" authorityName="W. H. Chen &amp; Y. M. Shui" authorityYear="2020" class="Magnoliopsida" family="Gesneriaceae" genus="Allocheilos" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Allocheilos rubroglandulosus" order="Lamiales" pageId="0" pageNumber="155" phylum="Tracheophyta" rank="species" species="rubroglandulosus">
<emphasis id="62F0845072C4367F81EDB7AD986BD696" italics="true" pageId="0" pageNumber="155">Allocheilos rubroglandulosus</emphasis>
</taxonomicName>
W.H. Chen &amp; Y.M. Shui, sp. nov. (From holotype, photographed by S. W. Guo and Y. M. Shui)
<emphasis id="9FC97C3DEC34D31D7B17A378991015E3" bold="true" pageId="0" pageNumber="155">A</emphasis>
inflorescence
<emphasis id="410B59B9768DCCE39FB5D6F5944012C7" bold="true" pageId="0" pageNumber="155">B</emphasis>
right part of the inflorescence
<emphasis id="CFFBC9C7B83C48BFB4DDEB4D85C33D4D" bold="true" pageId="0" pageNumber="155">C</emphasis>
left part of the inflorescence
<emphasis id="D6A131210034810450681AF5AF84AC0C" bold="true" pageId="0" pageNumber="155">D</emphasis>
lateral view of the leaf part of the inflorescence
<emphasis id="8D858ED6854CC86B26E9193049BA718D" bold="true" pageId="0" pageNumber="155">E</emphasis>
face view of the flower
<emphasis id="E582AE0CEE5BBC0A9F3104A28E2C509F" bold="true" pageId="0" pageNumber="155">F</emphasis>
face view indicating 3 staminodes, middle white and lateral 2 red on the top
<emphasis id="6F3FB67206CFB60872F5A52B2291E611" bold="true" pageId="0" pageNumber="155">G</emphasis>
lateral view of flower indicating stamens
<emphasis id="5DC417D6EE10860DB02D1CF1837B7139" bold="true" pageId="0" pageNumber="155">H</emphasis>
opened corolla indicating the stamens and staminodes and the swollen nodes at the base of filaments. Notes:
<emphasis id="4FF83E67C841677F810B79F10D834C29" bold="true" pageId="0" pageNumber="155">at</emphasis>
anther,
<emphasis id="8304D6807736490D3AB9427186ABB395" bold="true" pageId="0" pageNumber="155">br</emphasis>
bract;
<emphasis id="8DDEA81F2AA7BC2155382C2A961DB5B1" bold="true" pageId="0" pageNumber="155">cx</emphasis>
calyx lobe,
<emphasis id="CC7D3B53A7004E2F18F9AB0A6CC6FE98" bold="true" pageId="0" pageNumber="155">dc</emphasis>
disc,
<emphasis id="2F818849FA51A103012CE9DEFD78BFFA" bold="true" pageId="0" pageNumber="155">fm</emphasis>
filament,
<emphasis id="3B40EECEF73A527A0BC40C4E8781212D" bold="true" pageId="0" pageNumber="155">gl</emphasis>
glandular,
<emphasis id="9F8A925535E2A75472B64EEEE2F87BD9" bold="true" pageId="0" pageNumber="155">sd</emphasis>
staminode,
<emphasis id="F79A00F18B4AF80193F5B75AF21B28D6" bold="true" pageId="0" pageNumber="155">sl</emphasis>
style,
<emphasis id="F005BCC4DF93119E20278B9CD78BC7F9" bold="true" pageId="0" pageNumber="155">sm</emphasis>
stigma,
<emphasis id="4694D8D50BFD18810221B54F153FBCED" bold="true" pageId="0" pageNumber="155">sn</emphasis>
swollen nodes at base of filament.
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>