Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam

Peng, Ching‐I; Lin, Che-Wei; Yang, Hsun-An; Kono, Yoshiaki; Nguyen, Hieu Quang

doi:10.1186/s40529-015-0089-3

Cited by 18 publications

(30 citation statements)

References 7 publications

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“…In the latter species, the petals are covered abaxially by brown pubescence and are much larger than those of the new species. As to the lanceolate and colourful leaves, the new species is similar to Begonia locii C.-I Peng, C. W. Lin & H. Q. Nguyen, but different in the absence of glandular hairs of flowers (Peng et al 2015a). Furthermore, as to the glandular pubes, the new species is also similar to B. filiformis Irmsch., but differs in the subglabrous adaxial surface and laxly pubescent abaxial surface of leaves ( vs. densely pubescent adaxial and abaxial surface of leaves in the latter).…”

Section: Taxonomymentioning

confidence: 87%

“…After review of the type specimens and taxonomic publications within the regions (Gagnepain 1921; Irmscher 1939; Ho 1991; Nguyen 2004; Shui and Chen 2005; Truong et al 2005; Nguyen and Tebbit 2006; Kiew 2007; Nguyen et al 2010; Peng et al 2014, 2015a,b; Hughes et al 2015), seven new species of Begonia have been confirmed, and their sectional positions designated here (Doorenbos et al 1998; Shui et al 2002). Due to the taxonomic complexity of the genus (Thomas et al 2011; Chung et al 2014), the DNA samples of the above new species have also been collected and some possible different opinions will be issued about their systematic position in the broad context in the future.…”

Section: Introductionmentioning

confidence: 85%

“…However, the latter three species are obviously different from the new species in their slightly pubescent abaxial surface of leaves. In Cao Bang Province, Vietnam, there already are the other three new species described recently (Peng et al 2015a), viz. B. caobangensis C.-I Peng & C. W. Lin, B. circularis C.-I Peng & C. W. Lin and B. melanobullata C.-I Peng & C. W. Lin.…”

Section: Taxonomymentioning

confidence: 99%

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Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China

Chen¹,

Radbouchoom²,

Nguyen³

et al. 2018

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Since 2016, KIB (Kunming Institute of Botany) and CPC (Centre for Plant Conservation of Vietnam) have conducted several surveys in the transboundary karst regions in Northern Vietnam and Southern China and seven new species in the genus Begonia Linn. (Begoniaceae) are firstly described. Amongst them, two species, Begonia albopunctata Y.M. Shui, W.H. Chen & H.Q. Nguyen and B. erectocarpa H.Q. Nguyen, Y.M. Shui & W.H. Chen, respectively belong to section Sphenanthera with berry fruits and section Leprosae with clavate berry fruits; four species, B. gulongshanensis Y.M. Shui & W. H. Chen, B. minissima H.Q. Nguyen, Y.M. Shui & W.H. Chen, B. mollissima Y.M. Shui, H.Q. Nguyen & W.H. Chen, B. rhytidophylla Y.M. Shui & W.H. Chen, belong to section Coelocentrum with parietal placentation; one species, Begonia bambusetorum H.Q. Nguyen, Y.M. Shui & W.H. Chen, belongs to section Diploclinium with 3-loculed ovary and capsules. The diagnostic characters of these species are described and illustrated in the text and photographs.

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Section: Taxonomymentioning

confidence: 87%

Section: Introductionmentioning

confidence: 85%

Section: Taxonomymentioning

confidence: 99%

See 1 more Smart Citation

Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China

Chen¹,

Radbouchoom²,

Nguyen³

et al. 2018

Self Cite

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“…Limestone outcroppings support tropical forest biodiversity at low latitudes around the globe (Felfili et al 2007). Tropical forests on limestone are viewed as relict communities, with many endemic and new species (Musser et al 2005;Crottini et al 2011;Bogutskaya et al 2012;Chen et al 2014;Peng et al 2015). Natural environmental factors and human activities have complex negative and positive effects on the biodiversity of these unique environments.…”

Section: Introductionmentioning

confidence: 99%

Environmental Factors Influencing Tree Species Regeneration in Different Forest Stands Growing on a Limestone Hill in Phrae Province, Northern Thailand

Asanok¹,

Marod²

2016

Journal of Forest and Environmental Science

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Improved knowledge of the environmental factors affecting the natural regeneration of tree species in limestone forest is urgently required for species conservation. We examined the environmental factors and tree species characteristics that are important for colonization in diverse forest stands growing on a limestone hill in northern Thailand. Our analysis estimated the relative influence of forest structure and environmental factors on the regeneration traits of tree species. We established sixty-four 100-m 2 plots in four forest stands on the limestone hill. We determined the species composition of canopy trees, regenerating seedlings, and saplings in relation to the physical environment. The relationships between environmental variables and tree species abundance were assessed by canonical correspondence analysis (CCA), and we used generalized linear mixed models to examine data on seedling/sapling abundances. The CCA ordination indicated that the abundance of tree species within the mixed deciduous forest was closely related to soil depth. The abundances of tree species growing within the sink-hole and hill-slope stands were positively related to the extent of rocky outcropping; light and soil moisture positively influenced the abundance of tree species in the hill-cliff stand. Physical factors had a greater effect on tree regeneration than did factors related to forest structure.Tree species, such as Ficus macleilandii, Dracaena cochinchinensis, and Phyllanthus mirabilis within the hill-cliff or sink-hole stand, colonized well on large rocky outcroppings that were well illuminated and had soft soils. These species regenerated well under conditions prevailing on the limestone hill. The colonization of several species in other stands was negatively influenced by environmental conditions at these sites. We found that natural regeneration of tree species on the limestone hill was difficult because of the prevailing combination of physical and biological factors. The influence of these factors was species dependent, and the magnitude of effects varied across forest stands.

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“…China, after Brazil, has the second largest number of Begonia species, with 173 species recorded in Flora of China and 141 endemic in China (Gu et al 2007). After publication of Flora of China, 14 new Begonia species, all endemic in China, are described and illustrated (Ku et al 2008, Li et al 2008, Liu et al 2007, Ma et al 2006, Peng et al 2008a, 2008b, 2009, 2010, Shui 2007, Wei et al 2007). There are still many potential new taxa under investigation, therefore, the total number of Begonia species in China could easily reach over 200.…”

Section: Introductionmentioning

confidence: 99%

Begonia intermedia, a new species of Begoniaceae from Hainan, China

et al. 2014

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Begonia intermedia D.K. Tian & Y.H. Yan, a new species in Begonia sect. Diploclinium (Wright) A. DC (Begoniaceae) from Hainan, China, is described and illustrated. It differs from the morphologically similar B. fimbristipula Hance by its orchid-root-like rhizomes, later flowering and distinctive hairy bracts. Also, based on a molecular phylogenetic analysis, B. intermedia is distinct from B. fimbristipula.

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Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam

Cited by 18 publications

References 7 publications

Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China

Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China

Environmental Factors Influencing Tree Species Regeneration in Different Forest Stands Growing on a Limestone Hill in Phrae Province, Northern Thailand

Begonia intermedia, a new species of Begoniaceae from Hainan, China

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