treatments-xml/data/89/3F/57/893F573DD1255EDB98B7D722A2684F79.xml

<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.183.69180" ID-GBIF-Dataset="96488fdd-2b82-41f0-b8b1-d2304132e2a6" ID-PMC="PMC8556219" ID-Pensoft-Pub="1314-2003-183-108" ID-Pensoft-UUID="B95C0B7107E4552B85B5B691DABD5F82" ID-PubMed="34754264" ModsDocID="1314-2003-183-108" checkinTime="1634929631751" checkinUser="pensoft" docAuthor="Nguyen, Cuong Huu, Nguyen, Ly Van, Nguyen, Khang Sinh, Egorov, Alexander A. &amp; Averyanov, Leonid V." docDate="2021" docId="893F573DD1255EDB98B7D722A2684F79" docLanguage="en" docName="PhytoKeys 183: 108-114" docOrigin="PhytoKeys 183" docPubDate="2021-10-22" docSource="http://dx.doi.org/10.3897/phytokeys.183.69180" docTitle="Hemiboea chanii C. H. Nguyen &amp; Aver. 2021, sp. nov." docType="treatment" docVersion="4" id="B95C0B7107E4552B85B5B691DABD5F82" lastPageNumber="108" masterDocId="B95C0B7107E4552B85B5B691DABD5F82" masterDocTitle="Hemiboea chanii (Gesneriaceae), a new species from limestone areas of northern Vietnam" masterLastPageNumber="114" masterPageNumber="108" pageNumber="108" updateTime="1668142432131" updateUser="ExternalLinkService">
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<mods:titleInfo>
<mods:title>Hemiboea chanii (Gesneriaceae), a new species from limestone areas of northern Vietnam</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Nguyen, Cuong Huu</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-2281-741X</mods:nameIdentifier>
<mods:affiliation>Vietnam National University of Forestry, Xuan Mai, Chuong My, Ha Noi, Vietnam &amp; Saint Petersburg State Forestry University, Institute str., 5, St. Petersburg, 194021, Russia</mods:affiliation>
<mods:nameIdentifier type="email">nguyenhuucuong.tvr@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Nguyen, Ly Van</mods:namePart>
<mods:affiliation>Vietnam National University of Forestry, Xuan Mai, Chuong My, Ha Noi, Vietnam</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Nguyen, Khang Sinh</mods:namePart>
<mods:affiliation>Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Egorov, Alexander A.</mods:namePart>
<mods:affiliation>St. Petersburg State University, 7 - 9 Universitetskaya Emb., St. Petersburg, 199034, Russia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Averyanov, Leonid V.</mods:namePart>
<mods:affiliation>Komarov Botanical Institute Russian Academy of Sciences, Prof. Popov str., 2, St. Petersburg, 197376, Russia</mods:affiliation>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>PhytoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2021</mods:date>
<mods:detail type="pubDate">
<mods:number>2021-10-22</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>183</mods:number>
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<mods:extent unit="page">
<mods:start>108</mods:start>
<mods:end>114</mods:end>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.183.69180</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.183.69180</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-183-108</mods:identifier>
<mods:identifier type="Pensoft-UUID">B95C0B7107E4552B85B5B691DABD5F82</mods:identifier>
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<treatment ID-GBIF-Taxon="189468342" LSID="urn:lsid:plazi:treatment:893F573DD1255EDB98B7D722A2684F79" httpUri="http://treatment.plazi.org/id/893F573DD1255EDB98B7D722A2684F79" lastPageNumber="108" pageId="0" pageNumber="108">
<subSubSection pageId="0" pageNumber="108" type="nomenclature">
<paragraph pageId="0" pageNumber="108">
<taxonomicName LSID="893F573D-D125-5EDB-98B7-D722A2684F79" authority="C. H. Nguyen &amp; Aver." authorityName="C. H. Nguyen &amp; Aver." authorityYear="2021" class="Magnoliopsida" family="Gesneriaceae" genus="Hemiboea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hemiboea chanii" order="Lamiales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="chanii" status="sp. nov.">Hemiboea chanii C.H.Nguyen &amp; Aver.</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="108">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="description">
<paragraph pageId="0" pageNumber="108">
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Hemiboea chanii C. H. Nguyen &amp; Aver., sp. nov. A plants in natural habitat B leaf blade, abaxial surface C flowering branch D flower, frontal view E-G flower, side and half side views H stamens and staminodes I involucre J flower inside and outside views K ripening capsule, cross section L-M pistil and ripening capsule, side view N calyx segments. Photos by Nguyen Van Ly, correction and design by C. H. Nguyen." figureDoi="10.3897/phytokeys.183.69180.figure1" httpUri="https://binary.pensoft.net/fig/601076" pageId="0" pageNumber="108">Figs 1</figureCitation>
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Hemiboea chanii C. H. Nguyen &amp; Aver., sp. nov. isotype specimen detail. N. V. Ly, NVL 20210119001 (isotype: LE 01077046 http: // en. herbariumle. ru /? t = occ &amp; id = 91550)." figureDoi="10.3897/phytokeys.183.69180.figure2" httpUri="https://binary.pensoft.net/fig/601077" pageId="0" pageNumber="108">, 2</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="materials_examined">
<paragraph pageId="0" pageNumber="108">
<typeStatus>Type</typeStatus>
.
</paragraph>
<paragraph pageId="0" pageNumber="108">
<materialsCitation collectingDate="2021-01-19" collectorName="N. V. Ly" country="Vietnam" elevation="533" latitude="23.004139" location="Minh Tan Village" longLatPrecision="1" longitude="104.91553" municipality="Vi Xuyen District" specimenCount="1" stateProvince="Ha Giang Province" typeStatus="holotype">
<collectingCountry name="Vietnam">Vietnam</collectingCountry>
. 
<collectingRegion country="Vietnam" name="Ha Giang">Ha Giang Province</collectingRegion>
: 
<collectingMunicipality>Vi Xuyen District</collectingMunicipality>
, 
<location LSID="urn:lsid:plazi:treatment:893F573DD1255EDB98B7D722A2684F79:5B1EB97ACAF05CBFCC8095487D73D7AD" country="Vietnam" latitude="23.004139" longLatPrecision="1" longitude="104.91553" municipality="Vi Xuyen District" name="Minh Tan Village" stateProvince="Ha Giang Province">Minh Tan Village</location>
, primary evergreen broad-leaved forest, around point 
<geoCoordinate degrees="23" direction="north" minutes="00" orientation="latitude" precision="1" seconds="14.9" value="23.004139">23°00'14.9&quot;N</geoCoordinate>
<geoCoordinate degrees="104" direction="east" minutes="54" orientation="longitude" precision="1" seconds="55.9" value="104.91553">104°54'55.9&quot;E</geoCoordinate>
, altitude 
<quantity metricMagnitude="2" metricUnit="m" metricValue="5.33" unit="m" value="533.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="5.33" unit="m" value="533.0">533 m</elevation>
</quantity>
, 
<collectingDate value="2021-01-19">19 January 2021</collectingDate>
, 
<emphasis italics="true" pageId="0" pageNumber="108">
<collectorName>N.V.Ly</collectorName>
</emphasis>
, 
<emphasis italics="true" pageId="0" pageNumber="108">NVL 20210119001</emphasis>
(
<typeStatus>holotype</typeStatus>
: VNF!; isotype: LE http://en.herbariumle.ru/?t=occ&amp;id=91550)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="diagnosis">
<paragraph pageId="0" pageNumber="108">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="108">
<taxonomicName class="Magnoliopsida" family="Gesneriaceae" genus="Hemiboea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hemiboea chanii" order="Lamiales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">Hemiboea chanii</emphasis>
</taxonomicName>
is similar to 
<taxonomicName lsidName="H. crystallina" pageId="0" pageNumber="108" rank="species" species="crystallina">
<emphasis italics="true" pageId="0" pageNumber="108">H. crystallina</emphasis>
</taxonomicName>
Y.M.Shui &amp; W.H.Chen in the shape of leaf blade, leaf margin and the externally pubescent corolla, but differs in having non-inflated nodes, diamond-shaped not winged involucre, flat calyx margin, corolla red-spotted inside with a ring of hairs, and stigma slightly swollen. It also morphologically resembles 
<taxonomicName lsidName="H. sinovietnamica" pageId="0" pageNumber="108" rank="species" species="sinovietnamica">
<emphasis italics="true" pageId="0" pageNumber="108">H. sinovietnamica</emphasis>
</taxonomicName>
W.B.Xu &amp; X.Y.Zhuang but differs in having 4-8 branches on main stem, repand-crenate leaf margin, involucre diamond-shaped with a cirrose apex, and pink corolla and a slightly swollen stigma (Table 
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological characters of H. chanii, H. crystallina and H. sinovietnamica." httpUri="http://table.plazi.org/id/F3A62356D2F8D966A37BF994B3280BF8" pageId="0" pageNumber="108" tableUuid="F3A62356D2F8D966A37BF994B3280BF8">1</tableCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="description">
<paragraph pageId="0" pageNumber="108">Description.</paragraph>
<paragraph pageId="0" pageNumber="108">
Perennial lithophytic herb. Stem ascending to erect, with 12-16 nodes on the main stems, not inflated, glabrous, subterete, 50-90 cm tall, 3-7 mm in diameter, with 4-8 branches. Leaves petiolate, opposite, unequal to sub-equal in a pair; petiole 1.5-4.5 cm long, about 2 mm in diameter, glabrous, green to purple; leaf blade narrowly ovate, ovate, oblong or elliptic, coriaceous when dry, 7.5-12 cm long, 2.5-5 cm wide, glabrous, adaxial surface dark green, abaxial surface pale greenish, at base cuneate, sometimes slightly oblique, apex acute or shortly acuminate, repand-crenate along the margin, median and lateral veins inconspicuous adaxially and protuberant abaxially, lateral veins in 6-10 pairs. Inflorescence subterminal, 2-3-flowered cyme; peduncle 0.8-1 cm long, about 1 mm in diameter, glabrous, green to pale green; involucre diamond-shaped, not winged, 1.6-1.8 cm in diameter, outside glabrous, with two cirrose opposite apices. Calyx white, actinomorphic, 5-lobed, dissected from the base; segments subequal, narrowly lanceolate 1.3-1.4 
<normalizedToken originalValue="×">x</normalizedToken>
0.2-0.3 cm, glabrous, margin entire flat, 1-veined. Corolla infundibular, outside pink with numerous red spots on adaxial lip, inside red spotted, 3.5-4 cm long; tube 3.0-3.6 cm long, 1.4-1.6 cm in diameter at the orifice, 3-4 mm in diameter at the base, sparsely glandular pubescent outside; inside with a ring of hairs adnate to 3-4 mm above the corolla base; limb distinctly two-lipped; adaxial lip 3-4 mm long, 2-lobed at apex, lobes subequal, nearly semi-circular, margin recurved; abaxial lip 6-8 mm long, 3-lobed, lobes unequal, with rounded apex, median lobe larger, broadly ovate, lateral 2 smaller, slightly obliquely ovate. Stamens 2, adaxial, adnate to 1.1-1.3 cm above the corolla base; filaments filiform, coiled, 1.2-1.4 cm long, 1 mm in diameter; anthers basifixed, globular, 1.5-1.7 mm in diameter, coherent at the apex. Staminodes 3, linear, glabrous, with inflated apex, adnate to 13-15 mm above the corolla base, the middle one 2-3 mm long, lateral ones 9-10 mm long. Disc circular, lemon-yellow, 1.2-1.4 mm high, margin repand, glabrous. Pistil 24-26 mm long; ovary narrowly cylindrical, glabrous, 7-8 mm long, about 2 mm in diameter; style 17-18 mm long, terete, glabrous, about 1 mm in diameter, apex curved; stigma slightly swollen, truncate. Capsule oblique in relation to pedicel, terete to narrowly fusiform, 2.6-3 cm long, glabrous, slightly curved, dehiscing adaxially; valves 2, straight, not twisted.
</paragraph>
<caption doi="10.3897/phytokeys.183.69180.figure1" httpUri="https://binary.pensoft.net/fig/601076" pageId="0" pageNumber="108" start="Figure 1" startId="F1">
<paragraph pageId="0" pageNumber="108">
<emphasis bold="true" pageId="0" pageNumber="108">Figure 1.</emphasis>
<taxonomicName class="Magnoliopsida" family="Gesneriaceae" genus="Hemiboea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hemiboea chanii" order="Lamiales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">Hemiboea chanii</emphasis>
</taxonomicName>
C.H.Nguyen &amp; Aver., sp. nov. 
<emphasis bold="true" pageId="0" pageNumber="108">A</emphasis>
plants in natural habitat 
<emphasis bold="true" pageId="0" pageNumber="108">B</emphasis>
leaf blade, abaxial surface 
<emphasis bold="true" pageId="0" pageNumber="108">C</emphasis>
flowering branch 
<emphasis bold="true" pageId="0" pageNumber="108">D</emphasis>
flower, frontal view 
<emphasis bold="true" pageId="0" pageNumber="108">E-G</emphasis>
flower, side and half side views 
<emphasis bold="true" pageId="0" pageNumber="108">H</emphasis>
stamens and staminodes 
<emphasis bold="true" pageId="0" pageNumber="108">I</emphasis>
involucre 
<emphasis bold="true" pageId="0" pageNumber="108">J</emphasis>
flower inside and outside views 
<emphasis bold="true" pageId="0" pageNumber="108">K</emphasis>
ripening capsule, cross section 
<emphasis bold="true" pageId="0" pageNumber="108">L-M</emphasis>
pistil and ripening capsule, side view 
<emphasis bold="true" pageId="0" pageNumber="108">N</emphasis>
calyx segments. Photos by Nguyen Van Ly, correction and design by C.H. Nguyen.
</paragraph>
</caption>
<caption doi="10.3897/phytokeys.183.69180.figure2" httpUri="https://binary.pensoft.net/fig/601077" pageId="0" pageNumber="108" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="108">
<emphasis bold="true" pageId="0" pageNumber="108">Figure 2.</emphasis>
<taxonomicName class="Magnoliopsida" family="Gesneriaceae" genus="Hemiboea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hemiboea chanii" order="Lamiales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">Hemiboea chanii</emphasis>
</taxonomicName>
C.H.Nguyen &amp; Aver., sp. nov. isotype specimen detail. N.V.Ly, NVL 20210119001 (isotype: LE 01077046 http://en.herbariumle.ru/?t=occ&amp;id=91550).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="distribution">
<paragraph pageId="0" pageNumber="108">Distribution and habitat.</paragraph>
<paragraph pageId="0" pageNumber="108">
The new species is only known from Minh Tan Village, Ha Giang Province, growing in cracks of limestone rocks in moist shady places or occasionally in the upper part of slopes, and on rocky hilltops in primary evergreen broad-leaved forests on karstic limestone at elevations 500-700 m a.s.l. Some of main herbaceous species accompanying the new species have been recorded as 
<taxonomicName class="Liliopsida" family="Araceae" genus="Aglaonema" kingdom="Plantae" lsidName="Aglaonema modestum" order="Alismatales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="modestum">
<emphasis italics="true" pageId="0" pageNumber="108">Aglaonema modestum</emphasis>
</taxonomicName>
Schott ex Engl., 
<taxonomicName class="Liliopsida" family="Araceae" genus="Amorphophallus" kingdom="Plantae" lsidName="Amorphophallus tonkinensis" order="Alismatales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="tonkinensis">
<emphasis italics="true" pageId="0" pageNumber="108">Amorphophallus tonkinensis</emphasis>
</taxonomicName>
Engl. &amp; Gehrm., 
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" lsidName="Begonia spp" order="Cucurbitales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="spp">
<emphasis italics="true" pageId="0" pageNumber="108">Begonia spp</emphasis>
</taxonomicName>
., 
<taxonomicName class="Magnoliopsida" family="Balsaminaceae" genus="Impatiens" kingdom="Plantae" lsidName="Impatiens bonii" order="Ericales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="bonii">
<emphasis italics="true" pageId="0" pageNumber="108">Impatiens bonii</emphasis>
</taxonomicName>
Hook.f., 
<taxonomicName class="Magnoliopsida" family="Urticaceae" genus="Laportea" kingdom="Plantae" lsidName="Laportea interrupta" order="Rosales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="interrupta">
<emphasis italics="true" pageId="0" pageNumber="108">Laportea interrupta</emphasis>
</taxonomicName>
(L.) Chew, 
<taxonomicName class="Magnoliopsida" family="Gesneriaceae" genus="Primulina" kingdom="Plantae" lsidName="Primulina balansae" order="Lamiales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="balansae">
<emphasis italics="true" pageId="0" pageNumber="108">Primulina balansae</emphasis>
</taxonomicName>
(Drake) Mich. 
<normalizedToken originalValue="Möller">Moeller</normalizedToken>
&amp; A.Weber, and 
<taxonomicName class="Liliopsida" family="Araceae" genus="Rhaphidophora" kingdom="Plantae" lsidName="Rhaphidophora decursiva" order="Alismatales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="decursiva">
<emphasis italics="true" pageId="0" pageNumber="108">Rhaphidophora decursiva</emphasis>
</taxonomicName>
(Roxb.) Schott
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="phenology">
<paragraph pageId="0" pageNumber="108">Phenology.</paragraph>
<paragraph pageId="0" pageNumber="108">Flowering from January to February, and fruiting from February to April.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="etymology">
<paragraph pageId="0" pageNumber="108">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="108">
<taxonomicName class="Magnoliopsida" family="Gesneriaceae" genus="Hemiboea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hemiboea chanii" order="Lamiales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">Hemiboea chanii</emphasis>
</taxonomicName>
is named in honor of the lecturer, Mr. Le Mong Chan, for his outstanding contributions to the conservation of the flora of Vietnam.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="proposed iucn conservation status">
<paragraph pageId="0" pageNumber="108">Proposed IUCN conservation status.</paragraph>
<paragraph pageId="0" pageNumber="108">
At present, only one known population with less than 100 mature individuals is confirmed in the field assessment. Its estimated area of occupancy is less than 5 km2. The population and habitat are greatly susceptible to various human activities and damage, particularly forest logging, agriculture, and grazing. There is a high risk of habitat degradation in the future because it is located close to the local village. Following the IUCN Red List Categories and Criteria (
<bibRefCitation author="IUCN" journalOrPublisher="Nordic Journal of Botany" pageId="0" pageNumber="108" publicationUrl="http://www.iucnredlist.org/documents/" refId="B5" refString="IUCN, 2017. Guidelines for using the IUCN Red List Categories and Criteria. Version 13. IUCN Standards and Petitions Subcommittee. http://www.iucnredlist.org/documents/" title="Guidelines for using the IUCN Red List Categories and Criteria. Version 13. IUCN Standards and Petitions Subcommittee." url="http://www.iucnredlist.org/documents/" year="2017">IUCN 2017</bibRefCitation>
), the new species may be assessed tentatively as Critically Endangered [B2ab (ii, iii), CR].
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="108" type="notes">
<paragraph pageId="0" pageNumber="108">Note.</paragraph>
<paragraph pageId="0" pageNumber="108">
<taxonomicName class="Magnoliopsida" family="Gesneriaceae" genus="Hemiboea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hemiboea chanii" order="Lamiales" pageId="0" pageNumber="108" phylum="Tracheophyta" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">Hemiboea chanii</emphasis>
</taxonomicName>
is morphologically similar to 
<taxonomicName lsidName="H. crystallina" pageId="0" pageNumber="108" rank="species" species="crystallina">
<emphasis italics="true" pageId="0" pageNumber="108">H. crystallina</emphasis>
</taxonomicName>
and 
<taxonomicName lsidName="H. sinovietnamica" pageId="0" pageNumber="108" rank="species" species="sinovietnamica">
<emphasis italics="true" pageId="0" pageNumber="108">H. sinovietnamica</emphasis>
</taxonomicName>
in its ecology. It has only been found in a limestone area and grows in the evergreen broad-leaved forest. The new species can be easily distinguished from 
<taxonomicName lsidName="H. crystallina" pageId="0" pageNumber="108" rank="species" species="crystallina">
<emphasis italics="true" pageId="0" pageNumber="108">H. crystallina</emphasis>
</taxonomicName>
in having a subterete stem up to 90 cm tall (vs. stem terete up to 40 cm tall), non inflated nodes (vs. nodes inflated), 1-veined calyx with flat, not revolute margin (vs. calyx 3-veined with revolute margin), corolla red spotted inside with a ring of hairs (vs. corolla inside purplish-red spotted with pale yellowish lines and absence of hair ring), and stigma slightly swollen (vs. stigma not swollen). The new species differs from 
<taxonomicName lsidName="H. sinovietnamica" pageId="0" pageNumber="108" rank="species" species="sinovietnamica">
<emphasis italics="true" pageId="0" pageNumber="108">H. sinovietnamica</emphasis>
</taxonomicName>
in having a subterete, 4-8 branched stem up to 90 cm tall (vs. stem subtetragonal, simple, up to 45 cm tall), repand-crenate leaf margin (vs. entire leaf margin), involucre diamond-shaped with a cirrose apex (vs. involucre triangular with acute apex), corolla pink (vs. corolla yellowish), stigma slightly swollen (vs. stigma distinctly capitate), and a flowering period lasting in January-February (vs. flowering period lasting during August-October). The comparison of the key morphological characters of 
<taxonomicName lsidName="H. chanii" pageId="0" pageNumber="108" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">H. chanii</emphasis>
</taxonomicName>
, 
<taxonomicName lsidName="H. crystallina" pageId="0" pageNumber="108" rank="species" species="crystallina">
<emphasis italics="true" pageId="0" pageNumber="108">H. crystallina</emphasis>
</taxonomicName>
, and 
<taxonomicName lsidName="H. sinovietnamica" pageId="0" pageNumber="108" rank="species" species="sinovietnamica">
<emphasis italics="true" pageId="0" pageNumber="108">H. sinovietnamica</emphasis>
</taxonomicName>
is presented in Table 
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological characters of H. chanii, H. crystallina and H. sinovietnamica." httpUri="http://table.plazi.org/id/F3A62356D2F8D966A37BF994B3280BF8" pageId="0" pageNumber="108" tableUuid="F3A62356D2F8D966A37BF994B3280BF8">1</tableCitation>
.
</paragraph>
<caption ID-Table-UUID="F3A62356D2F8D966A37BF994B3280BF8" httpUri="http://table.plazi.org/id/F3A62356D2F8D966A37BF994B3280BF8" pageId="0" pageNumber="108" start="Table 1" startId="T1">
<paragraph pageId="0" pageNumber="108">
<emphasis bold="true" pageId="0" pageNumber="108">Table 1.</emphasis>
Morphological characters of 
<taxonomicName lsidName="H. chanii" pageId="0" pageNumber="108" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">H. chanii</emphasis>
</taxonomicName>
, 
<taxonomicName lsidName="H. crystallina" pageId="0" pageNumber="108" rank="species" species="crystallina">
<emphasis italics="true" pageId="0" pageNumber="108">H. crystallina</emphasis>
</taxonomicName>
and 
<taxonomicName lsidName="H. sinovietnamica" pageId="0" pageNumber="108" rank="species" species="sinovietnamica">
<emphasis italics="true" pageId="0" pageNumber="108">H. sinovietnamica</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="108">
<table pageId="0" pageNumber="108">
<tr pageId="0" pageNumber="108">
<th colspan="1" isEmpty="true" pageId="0" pageNumber="108" rowspan="1">-</th>
<th colspan="1" pageId="0" pageNumber="108" rowspan="1">
<taxonomicName lsidName="H. chanii" pageId="0" pageNumber="108" rank="species" species="chanii">
<emphasis italics="true" pageId="0" pageNumber="108">H. chanii</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="108" rowspan="1">
<taxonomicName lsidName="H. crystallina" pageId="0" pageNumber="108" rank="species" species="crystallina">
<emphasis italics="true" pageId="0" pageNumber="108">H. crystallina</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="108" rowspan="1">
<taxonomicName lsidName="H. sinovietnamica" pageId="0" pageNumber="108" rank="species" species="sinovietnamica">
<emphasis italics="true" pageId="0" pageNumber="108">H. sinovietnamica</emphasis>
</taxonomicName>
</th>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Stem height and shape of cross-section</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">50-90 cm, subterete</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">40 cm or less, terete</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">25-45 cm, subtetragonal</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Number of stem branches</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">4-8</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">2-6</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">stem simple</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Node</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">not inflated</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">inflated</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">not inflated</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Leaf margin</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">repand-crenate</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">repand-crenate</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">entire</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Involucre characters</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">diamond-shaped, not winged, apex cirrose</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">quadrangular, winged on costas, apex acute</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">triangular, not winged, apex acute</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Calyx lobe characters</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">margin flat, not revolute, 1-veined</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">margin revolute, 3-veined</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">margin flat, not revolute, 1-veined</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Corolla characters</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">pink, inside red spotted with a ring of hairs</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">white, inside purplish-red spotted with pale yellowish lines, hair ring absent</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">yellowish, inside purple-spotted with a ring of hairs</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Stigma</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">slightly swollen</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">slightly obtuse</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">distinctly capitate</td>
</tr>
<tr pageId="0" pageNumber="108">
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">Flowering period</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">January-February</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">November</td>
<td colspan="1" pageId="0" pageNumber="108" rowspan="1">August-October</td>
</tr>
</table>
</paragraph>
</subSubSection>
</treatment>
</document>