&lt;I&gt;Petrocodon&lt;/I&gt; (Gesneriaceae) in the Limestone Karsts of Guangxi, China: Three New Species and a New Combination Based on Morphological and Molecular Evidence

Xu, Wei‐Bin; Meng, Tao; Zhang, Qiang; Wu, W.J.; Liu, Yan; Chung, Kuo‐Fang

doi:10.1600/036364414x681437

Cited by 22 publications

(23 citation statements)

References 15 publications

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“…(e.g., Wei et al [2013]), Impatiens L. (e.g., Zhang et al [2014]), several genera of Gesneriaceae (e.g., Huang et al [2011]; Xu et al [2011], [2012a], [b], [2014]; Chung et al [2013]), etc.] confined to caves, fissures, and crevices of limestone rocks (Chung et al [2014]; Clements et al [2006]).…”

Section: Introductionmentioning

confidence: 99%

Two new species of Begonia sect. Coelocentrum, B. guixiensis and B. longa, from Sino-Vietnamese limestone karsts

Peng

Yang

et al. 2014

Bot Stud

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BackgroundIn our recent molecular phylogenetic study of Asian Begonia, two undescribed species, B. guixiensis sp. ined. (S. Guangxi, China) and B. longa sp. ined. (Vietnam), were sampled and placed within the strongly supported clade composed of Begonia sect. Coelocentrum and other co-distributed rhizomatous species in the Sino-Vietnamese limestone karsts. While Begonia sect. Coelocentrum has been recircumscribed based on the phylogenetic relationships, B. guixiensis sp. ined. and B. longa sp. ined. remain illegitimate names. In continuation of our studies in Asian Begonia, these two new species are described and illustrated.ResultsBegonia guixiensis resembles B. cylindrica in the peltate, subcoriaceous leaves, differing by the shape of ovary/fruit and the type of placentation. In aspect, B. longa bears a superficial resemblance to B. brevipedunculata in leaf shape in particular, differing by many other features such as the long internodes, shorter petioles and smaller leaves, longer peduncles and 3-locular ovary. The chromosome number of both new species is determined as 2n = 30.ConclusionA careful study of the literature, herbarium specimens and living plants, both in the wild and in cultivation in the experimental greenhouse, support the recognition of the two new species, which are described and illustrated herein.Electronic supplementary materialThe online version of this article (doi:10.1186/s40529-014-0052-8) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Two new species of Begonia sect. Coelocentrum, B. guixiensis and B. longa, from Sino-Vietnamese limestone karsts

Peng

Yang

et al. 2014

Bot Stud

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“…Based on the recent molecular studies (Wang et al 2010;Möller et al 2011;Wang et al 2011;Weber et al 2011aWeber et al , 2011bXu et al 2014), several genera have been integrated into Petrocodon Hance (1883: 167), including the monotypic genera Calcareoboea C.Y. Wu ex H.W.…”

Section: Introductionmentioning

confidence: 99%

Petrocodon hunanensis (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone area in Hunan, China

Zhou

et al. 2015

Phytotaxa

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Petrocodon hunanensis, a new species of Gesneriaceae from limestone area in Hunan Province, China, is described and illustrated. The new species is morphologically similar to Petrocodon coriaceifolius, but readily differs from the latter one in the growth form with terrestrial stems and distinct internodes, both surfaces of leaf densely with white pubescence, petiole densely with reddish-purple or white pubescence, zygomorphic corolla white or pale purple and 2–3 cm long, pedicels 0.3–2 (2.8) cm long, 4 stamens and 1 staminodes, ovary and capsule stipitate. Molecular evidences indicate that it is systematically similar to P. hispidus, but the morphologies of two relatives are obviously different.

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“…(e.g., Wei et al 2013), Impatiens L. (e.g., Zhang et al 2014), several genera of Gesneriaceae (e.g., Huang et al 2011;Xu et al 2011Xu et al , 2012aXu et al , b, 2014Chung et al 2013), etc. ] confined to caves, fissures, and crevices of limestone rocks Clements et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Two new species of

Peng

Yang

et al. 2014

Botanical Studies

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Background: In our recent molecular phylogenetic study of Asian Begonia, two undescribed species, B. guixiensis sp. ined. (S. Guangxi, China) and B. longa sp. ined. (Vietnam), were sampled and placed within the strongly supported clade composed of Begonia sect. Coelocentrum and other co-distributed rhizomatous species in the Sino-Vietnamese limestone karsts. While Begonia sect. Coelocentrum has been recircumscribed based on the phylogenetic relationships, B. guixiensis sp. ined. and B. longa sp. ined. remain illegitimate names. In continuation of our studies in Asian Begonia, these two new species are described and illustrated. Results: Begonia guixiensis resembles B. cylindrica in the peltate, subcoriaceous leaves, differing by the shape of ovary/fruit and the type of placentation. In aspect, B. longa bears a superficial resemblance to B. brevipedunculata in leaf shape in particular, differing by many other features such as the long internodes, shorter petioles and smaller leaves, longer peduncles and 3-locular ovary. The chromosome number of both new species is determined as 2n = 30. Conclusion: A careful study of the literature, herbarium specimens and living plants, both in the wild and in cultivation in the experimental greenhouse, support the recognition of the two new species, which are described and illustrated herein.

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<I>Petrocodon</I> (Gesneriaceae) in the Limestone Karsts of Guangxi, China: Three New Species and a New Combination Based on Morphological and Molecular Evidence

Cited by 22 publications

References 15 publications

Two new species of Begonia sect. Coelocentrum, B. guixiensis and B. longa, from Sino-Vietnamese limestone karsts

Two new species of Begonia sect. Coelocentrum, B. guixiensis and B. longa, from Sino-Vietnamese limestone karsts

Petrocodon hunanensis (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone area in Hunan, China

Two new species of

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