treatments-xml/data/BF/A6/6D/BFA66D1F891051FE97C814DCA3BE4040.xml

<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.153.50805" ID-GBIF-Dataset="ca02d2d2-14f3-4f34-838d-7d559bed1185" ID-PMC="PMC7381720" ID-Pensoft-Pub="1314-2003-153-13" ID-Pensoft-UUID="C317A6D13FF059CB8522871A3F77CD80" ID-PubMed="32765178" ModsDocID="1314-2003-153-13" checkinTime="1594919035984" checkinUser="pensoft" docAuthor="Tian, Dai-Ke, Xiao, Yan, Li, Yan-Ci &amp; Yan, Ke-Jian" docDate="2020" docId="BFA66D1F891051FE97C814DCA3BE4040" docLanguage="en" docName="PhytoKeys 153: 13-35" docOrigin="PhytoKeys 153" docSource="http://dx.doi.org/10.3897/phytokeys.153.50805" docTitle="Begonia langcangensis S. H. Huang" docType="treatment" docVersion="4" id="C317A6D13FF059CB8522871A3F77CD80" lastPageNumber="13" masterDocId="C317A6D13FF059CB8522871A3F77CD80" masterDocTitle="Several new records, synonyms, and hybrid-origin of Chinese begonias" masterLastPageNumber="35" masterPageNumber="13" pageNumber="13" updateTime="1668139878887" updateUser="ExternalLinkService">
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<mods:title>Several new records, synonyms, and hybrid-origin of Chinese begonias</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Tian, Dai-Ke</mods:namePart>
<mods:affiliation>Shanghai Chenshan Plant Science Research Center of Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China &amp; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai 201602, China</mods:affiliation>
<mods:nameIdentifier type="email">dktian@cemps.ac.cn</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Xiao, Yan</mods:namePart>
<mods:affiliation>Shanghai Chenshan Plant Science Research Center of Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China &amp; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai 201602, China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Li, Yan-Ci</mods:namePart>
<mods:affiliation>Shanghai Chenshan Plant Science Research Center of Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China &amp; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai 201602, China &amp; Shanghai Normal University, Shanghai 200234, China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Yan, Ke-Jian</mods:namePart>
<mods:affiliation>Guangxi Institute of Traditional Chinese Medicine &amp; Pharmaceutical Science, Nanning 530022, China</mods:affiliation>
</mods:name>
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<mods:title>PhytoKeys</mods:title>
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<mods:date>2020</mods:date>
<mods:detail type="volume">
<mods:number>153</mods:number>
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<mods:start>13</mods:start>
<mods:end>35</mods:end>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.153.50805</mods:url>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.153.50805</mods:identifier>
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<treatment ID-GBIF-Taxon="165119405" LSID="urn:lsid:plazi:treatment:BFA66D1F891051FE97C814DCA3BE4040" httpUri="http://treatment.plazi.org/id/BFA66D1F891051FE97C814DCA3BE4040" lastPageNumber="13" pageId="0" pageNumber="13">
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<paragraph pageId="0" pageNumber="13">
<taxonomicName LSID="BFA66D1F-8910-51FE-97C8-14DCA3BE4040" authority="S. H. Huang" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia langcangensis" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="species" species="langcangensis">
Begonia 
<normalizedToken originalValue="×">x</normalizedToken>
langcangensis S.H.Huang
</taxonomicName>
<figureCitation captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Begonia x lancangensis and its parents (B. acetosella and B. handelii) (Photos by Daike Tian) A, B male plant and female flower of B. x lancangensis C, D plant and fruits of B. acetosella E, F male and female flowering plants of B. handelii." figureDoi="10.3897/phytokeys.153.50805.figure11" httpUri="https://binary.pensoft.net/fig/432255" pageId="0" pageNumber="13">Fig. 11A, B</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="13" type="reference_group">
<paragraph pageId="0" pageNumber="13">
- 
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia langcangensis" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="species" species="langcangensis">Begonia langcangensis</taxonomicName>
S.H.Huang, 
<emphasis italics="true" pageId="0" pageNumber="13">Acta Bot. Yunnanica</emphasis>
21:13, 1999; S.H. Huang &amp; Y.M. Shui in C.Y. Wu (ed.), 
<emphasis italics="true" pageId="0" pageNumber="13">Fl Yunnan</emphasis>
12: 230, 2006; T.C. Ku et al. in C.Y. Wu &amp; P.H. Raven (eds), 
<emphasis italics="true" pageId="0" pageNumber="13">Fl. China</emphasis>
13: 181, 2007.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="13" type="notes">
<paragraph pageId="0" pageNumber="13">Note.</paragraph>
<paragraph pageId="0" pageNumber="13">
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia langcangensis" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="species" species="langcangensis">
<emphasis italics="true" pageId="0" pageNumber="13">Begonia langcangensis</emphasis>
</taxonomicName>
was described and published in 1999 and its type collection was made from Fazhan He of Lancang County in Yunnan Province. Since then, no additional specimens have been collected. During our field surveys in 2010 and 2017, respectively, we did not find any plants of this taxon in the type locality and only observed 
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
Craib (
<bibRefCitation DOI="https://doi.org/10.2307/4104569" author="Craib, WG" journalOrPublisher="Botany" pageId="0" pageNumber="13" refId="B7" refString="Craib, WG, 1912. Contributions to the Flora of Siam. Bulletin of Miscellaneous Information, Kew (3): 144-154. https://doi.org/10.2307/4104569" title="Contributions to the Flora of Siam. Bulletin of Miscellaneous Information, Kew (3): 144 - 154." url="https://doi.org/10.2307/4104569" year="1912">Craib 1912</bibRefCitation>
: 347) (Fig. 
<figureCitation captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Begonia x lancangensis and its parents (B. acetosella and B. handelii) (Photos by Daike Tian) A, B male plant and female flower of B. x lancangensis C, D plant and fruits of B. acetosella E, F male and female flowering plants of B. handelii." figureDoi="10.3897/phytokeys.153.50805.figure11" httpUri="https://binary.pensoft.net/fig/432255" pageId="0" pageNumber="13">11C, D</figureCitation>
), 
<taxonomicName lsidName="B. handelii" pageId="0" pageNumber="13" rank="species" species="handelii">
<emphasis italics="true" pageId="0" pageNumber="13">B. handelii</emphasis>
</taxonomicName>
Irmsch. (
<bibRefCitation author="Irmscher, E" journalOrPublisher="Mathematische-naturwissenchaftliche Klasse" pageId="0" pageNumber="13" pagination="24 - 27" refId="B21" refString="Irmscher, E, 1921. Plantae novae sinenses, diagnosibus brevibus descriptae a Dr. Henry Handel-Mazzetti. Anzeiger der Akademie der Wissenschaften in Wien. Mathematische-naturwissenchaftliche Klasse 58: 24 - 27" title="Plantae novae sinenses, diagnosibus brevibus descriptae a Dr. Henry Handel-Mazzetti. Anzeiger der Akademie der Wissenschaften in Wien." volume="58" year="1921">Irmscher 1921</bibRefCitation>
) (Fig. 
<figureCitation captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Begonia x lancangensis and its parents (B. acetosella and B. handelii) (Photos by Daike Tian) A, B male plant and female flower of B. x lancangensis C, D plant and fruits of B. acetosella E, F male and female flowering plants of B. handelii." figureDoi="10.3897/phytokeys.153.50805.figure11" httpUri="https://binary.pensoft.net/fig/432255" pageId="0" pageNumber="13">11E, F</figureCitation>
) and 
<taxonomicName lsidName="B. palmata" pageId="0" pageNumber="13" rank="species" species="palmata">
<emphasis italics="true" pageId="0" pageNumber="13">B. palmata</emphasis>
</taxonomicName>
D.Don (
<bibRefCitation DOI="https://doi.org/10.5962/bhl.title.86" author="Don, D" journalOrPublisher="Gale Press, London" pageId="0" pageNumber="13" refId="B12" refString="Don, D, 1825. Prodromus Florae Nepalensis. J. Gale Press, London, DOI: https://doi.org/10.5962/bhl.title.86" title="Prodromus Florae Nepalensis. J." url="https://doi.org/10.5962/bhl.title.86" year="1825">Don 1825</bibRefCitation>
). Based on the intermediate morphology of 
<taxonomicName lsidName="B. langcangensis" pageId="0" pageNumber="13" rank="species" species="langcangensis">
<emphasis italics="true" pageId="0" pageNumber="13">B. langcangensis</emphasis>
</taxonomicName>
and the overlapping distributions of 
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
and 
<taxonomicName lsidName="B. handelii" pageId="0" pageNumber="13" rank="species" species="handelii">
<emphasis italics="true" pageId="0" pageNumber="13">B. handelii</emphasis>
</taxonomicName>
, it is hypothesised that 
<taxonomicName lsidName="B. langcangensis" pageId="0" pageNumber="13" rank="species" species="langcangensis">
<emphasis italics="true" pageId="0" pageNumber="13">B. langcangensis</emphasis>
</taxonomicName>
is very likely a natural hybrid of these two species. To further investigate this, by artificially crossing 
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
and 
<taxonomicName lsidName="B. handelii" pageId="0" pageNumber="13" rank="species" species="handelii">
<emphasis italics="true" pageId="0" pageNumber="13">B. handelii</emphasis>
</taxonomicName>
, we produced, at Kunming Botanical Garden, a hybrid that was morphologically almost the same as 
<taxonomicName lsidName="B. langcangensis" pageId="0" pageNumber="13" rank="species" species="langcangensis">
<emphasis italics="true" pageId="0" pageNumber="13">B. langcangensis</emphasis>
</taxonomicName>
(Fig. 
<figureCitation captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Begonia x lancangensis and its parents (B. acetosella and B. handelii) (Photos by Daike Tian) A, B male plant and female flower of B. x lancangensis C, D plant and fruits of B. acetosella E, F male and female flowering plants of B. handelii." figureDoi="10.3897/phytokeys.153.50805.figure11" httpUri="https://binary.pensoft.net/fig/432255" pageId="0" pageNumber="13">11A, B</figureCitation>
). Therefore, we confirmed that 
<taxonomicName lsidName="B. langcangensis" pageId="0" pageNumber="13" rank="species" species="langcangensis">
<emphasis italics="true" pageId="0" pageNumber="13">B. langcangensis</emphasis>
</taxonomicName>
is a natural hybrid. It is very similar to the hybrid (unpublished) in the same section of 
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
<normalizedToken originalValue="×">x</normalizedToken>
<taxonomicName lsidName="B. silletensis" pageId="0" pageNumber="13" rank="species" species="silletensis">B. silletensis</taxonomicName>
subsp. 
<taxonomicName lsidName="subsp. mengyanensis" pageId="0" pageNumber="13" rank="subSpecies" species="silletensis" subSpecies="mengyanensis">mengyanensis</taxonomicName>
Tebbitt &amp; K.Y.Guan (
<bibRefCitation DOI="https://doi.org/10.2307/3393252" author="Tebbitt, MC" journalOrPublisher="Novon" pageId="0" pageNumber="13" pagination="133 - 136" refId="B38" refString="Tebbitt, MC, Guan, KY, 2002. Emended circumscription of Begonia silletensis (Begoniaceae) and description of new subspecies form Yunnan, China. Novon 12 (1): 133 - 136, DOI: https://doi.org/10.2307/3393252" title="Emended circumscription of Begonia silletensis (Begoniaceae) and description of new subspecies form Yunnan, China." url="https://doi.org/10.2307/3393252" volume="12" year="2002">Tebbitt and Guan 2002</bibRefCitation>
), which has hairy stems and petioles and larger leaves (
<bibRefCitation DOI="https://doi.org/10.17520/biods.2017050" author="Tian, DK" journalOrPublisher="Biodiversity Science" pageId="0" pageNumber="13" pagination="654 - 674" refId="B42" refString="Tian, DK, Li, C, Tong, Y, Fu, NF, Wu, RJ, 2017. Occurrence and characteristics of natural hybridization of Begonia in China. Biodiversity Science 25 (6): 654 - 674, DOI: https://doi.org/10.17520/biods.2017050" title="Occurrence and characteristics of natural hybridization of Begonia in China." url="https://doi.org/10.17520/biods.2017050" volume="25" year="2017">Tian et al. 2017</bibRefCitation>
).
</paragraph>
<caption doi="10.3897/phytokeys.153.50805.figure11" httpUri="https://binary.pensoft.net/fig/432255" pageId="0" pageNumber="13" start="Figure 11" startId="F11">
<paragraph pageId="0" pageNumber="13">
<emphasis bold="true" pageId="0" pageNumber="13">Figure 11.</emphasis>
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="genus">Begonia</taxonomicName>
<normalizedToken originalValue="×">x</normalizedToken>
<taxonomicName authorityName="S. H. Huang" authorityYear="1999" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="lancangensis" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="species" species="lancangensis">lancangensis</taxonomicName>
and its parents (
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
and 
<taxonomicName lsidName="B. handelii" pageId="0" pageNumber="13" rank="species" species="handelii">
<emphasis italics="true" pageId="0" pageNumber="13">B. handelii</emphasis>
</taxonomicName>
) (Photos by Daike Tian) 
<emphasis bold="true" pageId="0" pageNumber="13">A, B</emphasis>
male plant and female flower of 
<taxonomicName genus="B." lsidName="B." pageId="0" pageNumber="13" rank="genus">B.</taxonomicName>
<normalizedToken originalValue="×">x</normalizedToken>
<taxonomicName lsidName="lancangensis" pageId="0" pageNumber="13" rank="species" species="lancangensis">lancangensis</taxonomicName>
<emphasis bold="true" pageId="0" pageNumber="13">C, D</emphasis>
plant and fruits of 
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="0" pageNumber="13">E, F</emphasis>
male and female flowering plants of 
<taxonomicName lsidName="B. handelii" pageId="0" pageNumber="13" rank="species" species="handelii">
<emphasis italics="true" pageId="0" pageNumber="13">B. handelii</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="13" type="distribution">
<paragraph pageId="0" pageNumber="13">Distribution and phenology.</paragraph>
<paragraph pageId="0" pageNumber="13">
<emphasis bold="true" pageId="0" pageNumber="13">China</emphasis>
: Yunnan, Lancang, only seen in type locality, alt. 1600 m; 
<emphasis bold="true" pageId="0" pageNumber="13">Laos</emphasis>
: Luang Namtha Province, Nam Ha National Biodiversity Conservation Area, Near Na Lun Village, alt. 687 m (
<bibRefCitation DOI="https://doi.org/10.3897/phytokeys.138.46718" author="Ding, HB" journalOrPublisher="PhytoKeys" pageId="0" pageNumber="13" pagination="187 - 301" refId="B11" refString="Ding, HB, Maw, MB, Yang, B, Bouamanivong, S, Tan, YH, 2020. An updated checklist of Begonia (Begoniaceae) in Laos, with two new species and five new records. PhytoKeys 137: 187 - 301, DOI: https://doi.org/10.3897/phytokeys.138.46718" title="An updated checklist of Begonia (Begoniaceae) in Laos, with two new species and five new records." url="https://doi.org/10.3897/phytokeys.138.46718" volume="137" year="2020">Ding et al. 2020</bibRefCitation>
). Flowering March to May, fruiting April to July.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="13" type="conservation status">
<paragraph pageId="0" pageNumber="13">Conservation status.</paragraph>
<paragraph pageId="0" pageNumber="13">
Regionally Extinct (RE). The living plants of 
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="genus">Begonia</taxonomicName>
<normalizedToken originalValue="×">x</normalizedToken>
<taxonomicName authorityName="S. H. Huang" authorityYear="1999" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="lancangensis" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="species" species="lancangensis">lancangensis</taxonomicName>
have not been found in the type locality during field surveys after its first description. Recently, however, other researchers found wild plants in Laos (
<bibRefCitation DOI="https://doi.org/10.3897/phytokeys.138.46718" author="Ding, HB" journalOrPublisher="PhytoKeys" pageId="0" pageNumber="13" pagination="187 - 301" refId="B11" refString="Ding, HB, Maw, MB, Yang, B, Bouamanivong, S, Tan, YH, 2020. An updated checklist of Begonia (Begoniaceae) in Laos, with two new species and five new records. PhytoKeys 137: 187 - 301, DOI: https://doi.org/10.3897/phytokeys.138.46718" title="An updated checklist of Begonia (Begoniaceae) in Laos, with two new species and five new records." url="https://doi.org/10.3897/phytokeys.138.46718" volume="137" year="2020">Ding et al. 2020</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="13" type="remarks">
<paragraph pageId="0" pageNumber="13">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="13">
Like 
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
, 
<taxonomicName lsidName="B. handelii" pageId="0" pageNumber="13" rank="species" species="handelii">
<emphasis italics="true" pageId="0" pageNumber="13">B. handelii</emphasis>
</taxonomicName>
and 
<taxonomicName lsidName="B. silletensis" pageId="0" pageNumber="13" rank="species" species="silletensis">
<emphasis italics="true" pageId="0" pageNumber="13">B. silletensis</emphasis>
</taxonomicName>
C.B.Clarke (
<bibRefCitation author="Clarke, CB" journalOrPublisher=") Flora of British India" pageId="0" pageNumber="13" pagination="635 - 636" publicationUrl="https://biodiversitylibrary.org/page/37371521[accessed" refId="B5" refString="Clarke, CB, 1879. Begoniaceae. In: Hooker JD (Ed.) Flora of British India 2: 635 - 636, https://biodiversitylibrary.org/page/37371521[accessed" title="Begoniaceae. In: Hooker JD (Ed." url="https://biodiversitylibrary.org/page/37371521[accessed" volume="2" year="1879">Clarke 1879</bibRefCitation>
), dioecious 
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="genus">Begonia</taxonomicName>
<normalizedToken originalValue="×">x</normalizedToken>
<taxonomicName authorityName="S. H. Huang" authorityYear="1999" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="lancangensis" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="species" species="lancangensis">lancangensis</taxonomicName>
has berry-like fruits and was previously classified in section 
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="section" section="Sphenanthera">Sphenanthera</taxonomicName>
, but has recently been integrated into section 
<taxonomicName class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Cucurbitales" pageId="0" pageNumber="13" phylum="Tracheophyta" rank="section" section="Platycentrum">Platycentrum</taxonomicName>
(
<bibRefCitation DOI="https://doi.org/10.12705/672.3" author="Moonlight, PW" journalOrPublisher="Taxon" pageId="0" pageNumber="13" pagination="267 - 323" refId="B31" refString="Moonlight, PW, Ardi, WH, Padilla, LA, Chung, KF, Fuller, D, Girmansyah, D, Hollands, R, Jara-Munoz, A, Kiew, R, Leong, WC, Liu, Y, Mahardika, A, Marasinghe, LDK, O'Connor, M, Peng, C-I, Perez, AJ, Phutthai, T, Pullan, M, Rajbhandary, S, Reynel, C, Rubite, RR, Sang, J, Scherberich, D, Shui, YM, Tebbitt, MC, Thomas, DC, Wilson, HP, Zaini, NH, Hughes, M, 2018. Dividing and conquering the fastest-growing genus: Towards a natural sectional classification of the mega-diverse genus Begonia (Begoniaceae). Taxon 67 (2): 267 - 323, DOI: https://doi.org/10.12705/672.3" title="Dividing and conquering the fastest-growing genus: Towards a natural sectional classification of the mega-diverse genus Begonia (Begoniaceae)." url="https://doi.org/10.12705/672.3" volume="67" year="2018">Moonlight et al. 2018</bibRefCitation>
). In the wild, 
<taxonomicName lsidName="B. acetosella" pageId="0" pageNumber="13" rank="species" species="acetosella">
<emphasis italics="true" pageId="0" pageNumber="13">B. acetosella</emphasis>
</taxonomicName>
, 
<taxonomicName lsidName="B. handelii" pageId="0" pageNumber="13" rank="species" species="handelii">
<emphasis italics="true" pageId="0" pageNumber="13">B. handelii</emphasis>
</taxonomicName>
and 
<taxonomicName lsidName="B. silletensis" pageId="0" pageNumber="13" rank="species" species="silletensis">
<emphasis italics="true" pageId="0" pageNumber="13">B. silletensis</emphasis>
</taxonomicName>
often have overlapping distributions, meaning natural cross fertilisation is possible due to their overlapping flowering periods. The hybrid plants are usually very few and, therefore, rarely observed, due to a low chance of a natural cross. Natural crossings may generate new hybrids in the future.
</paragraph>
</subSubSection>
</treatment>
</document>