Wen-Hong Chen

Wen-Hong Chen
Chinese Academy of Sciences | CAS

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54
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Publications

Publications (54)
Article
A new fern species, Polystichum jinpingense, a member of P. subg. Haplopolystichum sect. Haplopolystichum, is described and illustrated from southeastern Yunnan, China. Polystichum jinpingense is most similar to P. subacutidens in plant size and having numerous pinnae, but the former has thinner (0.7–0.9 mm in diam.) rachis, oblong pinnae, pinna ma...
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We describe Begonia caryotarum (B. sect. Platycentrum), a new species from southeast Yunnan, China, found in rock crevices at the foot of limestone hills in Caryota obtusa forest at elev. 700–900 m. The new species is most similar to B. hekouensis in having the same vestiture type on the petioles, flower tepal number, placentation structure, and ov...
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A new species of Ebenaceae, Diospyros xylocarpa Y. M. Shui, W. H. Chen & Sima, from China and Vietnam, is described and illustrated. The new species is similar to D. phuketensis Phengklai, but differs in its bigger and densely ochre brown villous leaves, more pairs of lateral veins, shorter petioles, 8-locular ovaries, xyloid fruits with nearly squ...
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Begonia nangunheensis belonging to Begonia sect. Platycentrum is described and illustrated as a new species in Caryota obtusa forests in Yunnan province of China. It is similar to Begonia siamensis in 3-winged fruits, 2-loculed ovary and axile placentation with 2 segments per locule, but differs in its glabrous petiole and abaxial leaf-blade, ovate...
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The invalid name, Begonia fagopyrofolia nom.nud., is validly published, with the addition of a description and illustration. As a member of Begonia sect. Stolonifera, it is similar to B. cehengensis, but differs in its climbing stem, obovate to suborbicular petals of the staminate and pistillate flowers, a 1.5–2.2 m long thin beak-like top of the f...
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A new fern species, Leptochilus gracilis, is described and illustrated from southeastern Yunnan, China. Leptochilus gracilis is most similar to L. ellipticus. Compared with L. ellipticus, L. gracilis has a smaller habit with fronds less than 20 cm long, laminae with only one or two pairs of lobes, and midrib of lobes at angles of 45–60 degree with...
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The former genus Bournea is endemic to China, including two species, has been under consideration for incorporation into the expanded genus Oreocharis s.l. in Gesneriaceae. The phylogenetic tree inferred from two DNA sequences ( trn L-F and ITS) showed that this genus is deeply nested into Oreocharis s.l. However, the new tree from seven ones ( atp...
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Four new species of Oreocharis (Gesneriaceae) are described and illustrated. These new species grow in pairs in montane forests in Yunnan province, China. One pair grows in Wenshan county, Southeast Yunnan, viz. Oreocharis eriocarpa W.H. Chen & Y.M. Shui and O. wenshanensis W.H. Chen & Y.M. Shui and another pair grows in Yongde county, Southwest Yu...
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One new species and one new variety of Gesneriaceae in Vietnam are described, viz. Paraboea sinensis var. glabrissima var. nov. and Primulina xuansonensis sp. nov. These two new taxa grow in limestone regions in North Vietnam. The former new variety differs from Paraboea sinensis (Oliv.) Burtt var. sinensis in its young leaf abaxially, stem and ped...
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Two new species of Gesneriaceae, Paraboea myriantha sp. nov. and P. brevipedunculata sp. nov. are described and illustrated with photos. They grow in the Caryota obtusa forests from Yunnan Province of China. P. myriantha is closely related to P. glutinosa (Hand.-Mazz.) K.Y.Pan, but differs mainly in corolla outside glandular-puberulent, adaxial cor...
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A new species of Deinostigma (Gesneriaceae) from Yunnan, China, Deinostigma fasciculatum W.H.Chen & Y.M.Shui, sp. nov., has been discovered and described. In the genus, the new species is similar to D. cicatricosum (W.T. Wang) D.J. Middleton & Mich. Möller and D. cyrtocarpum (D. Fang & L. Zeng) Mich. Möller & H.J. Atkins in dark purple flowers and...
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Allocheilos W.T.Wang in Gesneriaceae was described in 1983 and is characterized by its 4-lobed adaxial lip and undivided abaxial lip with acute apex. The genus is endemic to the karst regions in southwestern China and is classified as endangered due to habitat loss. During surveys of the karst areas in Yunnan of southwestern China in 2017, we colle...
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Full-text available
The former genus Bournea is endemic to China, including two species, has been under consideration for incorporation into the expanded genus Oreocharis s.l. in Gesneriaceae. The phylogenetic tree inferred from two DNA sequences (trnL-F and ITS) showed that this genus is deeply nested into Oreocharis s.l. However, the new tree from seven ones (atpB-r...
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Full-text available
Examination of herbaria specimens and living plants from several populations reveals that the diagnostic characteristics (grooved petioles, acute connectives and fruit wings extremely leaning to pedicles) are exactly consistent between Begonia naga from India and Begonia manhaoensis in China. Therefore, B. naga is treated as a synonym of B. manhaoe...
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Seven sections and 50 species and infraspecific taxa of Begonia have been recorded in the Daweishan Range of Yunnan Province, southwestern China. This work aims to analyze the relationships between their geographical distribution and ecology, review their floristic diversity, and elucidate the abundance and horticultural value of Begonia resources...
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Karst regions provide a special environment for plant development, and have a highly endemic flora. A tuberous Begonia species, collected from a limestone mountain in Guizhou province, has been confirmed to be new to science, described and illustrated here. In sect. Diploclinium, the new species, Begonia zunyiensis S.Z.He & Y.M.Shui sp. nov., is si...
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Two new species in Begonia sect. Coelocentrum, Begonia acutis, and B. remusatifolia, have been discovered in the karst regions of northern Vietnam, one of the richest habitats for Begonia. The differences of the two new species were compared with other peltate-leaved species in China and Vietnam, including B. cavaleriei, B. pulvinifera and B. wangi...
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Based on field surveys in Southeastern Xizang and detailed examination of specimens in several herbaria, a new species with berry-like fruits, Begonia pseudoheydei, is herein confirmed and described. Its relationship with the similar species Begonia longifolia from Asia, and its morphological homoplasy with the species Begonia heydei from Central A...
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The newly refined genus Petrocodon Hance (Gesneriaceae), mainly distributed from South China to Southwest China,is comprised of 34 species and one variety. A new species, Petrocodon tenuitubus W. H. Chen, F. Wen Y. M. Shui, distributed in the limestone region from Maguan County,Yunnan Province, China, is illustrated and described here. The new spec...
Article
Due to the unavailability of specimens and publications in the past, some gaps exist in knowledge of similar species from various adjacent countries. After more recently detailed observations from field surveys and examinations on herbaria specimens, we confirmed the status of Begonia arboreta and B. sonlaensis as synonyms of B. garrettii and B. ps...
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During the review progress of a manuscript describing a new species from Xizang (Tibet), we found that, close to acceptance of our manuscript, the same species had just been published as Begonia medogensis. For better understanding this species, we supplemented the description of this species with further illustrations, additional specimens, update...
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Begonia kingdon-wardii Tebbitt was rediscovered in 2014 from Myanmar after 67 years based on its last collection in 1937. Its previously unknown female flower and inaccurate morphology of leaf and ovary have been additionally described. This species belongs to Begonia sect. Sphenanthera (Hassk.) Warb. due to its dioecious habit, 3-locular ovary, be...
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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...
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A new species of Gesneriaceae, Hemiboea crystallina Y.M.Shui & W.H.Chen from China and Vietnam, is described and illustrated. The new species is diagnostic by the combination of its inflated nodes, glabrous stem, glabrous and lanceolate leaves, 4-winged involucre, margin-reflected calyx segments and the glabrous surface inside corolla. Among the sp...
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Based on examination of type specimens and publications, we confirmed that Begonia glutinosa Kiew from Vietnam is conspecific to B. wallichiana Lehm. Thus, we combined B. glutinosa as a new synonym of B. wallichiana Lehm.. As to B. wallichiana, the complicated history of taxonomic revision and botanic nomenclature is discussed here.
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Oreocharis crispata, a new species of Oreocharis (Gesneriaceae) from northeastern Guangxi, China, is described and illustrated. The new species is compared with its most morphologically similar species O. nemoralis and O. magnidens. Besides, the relationship between the new species and Oreocharis × heterandra is discussed here.
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A new species of Oreocharis (Gesneriaceae) from northwestern Yunnan in China is described and illustrated. The new species, Oreocharis ninglangensis, is most similar to O. delavayi, but it can be easily distinguished from it by conspicuous red stripes inside the corolla mouth and by the finely bullate leaf surface in the latter.
Article
Chen, W.-H., Y.-M. Shui & M. Möller (2014). Two new combinations in Oreocharis Benth. (Gesneriaceae) from China. Candollea 69: 179–182. In English, English abstract. Recent molecular phylogenetic studies indicated that no less than ten genera of Gesneriaceae are nested in Oreocharis Benth., and the circumscription of the genus was extended accordin...
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Background: The karst regions in South China have an abundance of endemic plants that face high extinction risks. The Chinese Gesneriaceae endemic Paraisometrum mileense ( = Oreocharis mileensis), was presumed extinct for 100 years. After its re-discovery, the species has become one of five key plants selected by the Chinese forestry government to...
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Abstract— Three new species of Gesneriaceae, Petrocodon ainsliifolius , Petrocodon lithophilus , Petrocodon viridescens , from limestone areas of Yunnan, China are described and illustrated. Their independent species status is demonstrated in phylogenetic analyses using nuclear ribosomal internal transcribed spacer and chloroplast trnLF intron-spac...
Article
A new species of Gesneriaceae, Oreocharis jinpingensis W.H. Chen & Y.M. Shui from the Xilong Mountains of Jinping County in southeastern Yunnan, China, bordering North Vietnam, is described and illustrated. Its morphological distinctiveness from the most similar species O. auricula is discussed. Pollen and seed morphological characters are also rep...
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A new species of Gesneriaceae, Ancylostemon dimorphosepalus W.H. Chen & Y.M. Shui, is described and illustrated. It is characterized by its cordate leaves, purple flowers, dimorphous sepals, and small upper lobes of the corolla. Its relationships with the similar species, Ancylostemon aureus and Oreocharis rotundifolia, are discussed.
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Two new species of Gesneriaceae, Paraboea hekouensis Y.M. Shui & W.H. Chen and P. manhaoensis Y.M. Shui & W.H. Chen, are described and illustrated. The former species is similar to P. nutans in possessing a basal leaf rosette, centrally positioned styles and slightly twisted fruits, but differs from it by having a dense golden-brown and long pubesc...
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Anoectochilus malipoensis W.H. Chen & Y.M. Shui sp. nova (Orchidaceae) from Yunnan, China, is described and illustrated. It is similar to A. emeiensis but differs by having a narrow membranaceous rim in the anther cap, obovate epichile lobes with acuminate apex and crenulate margins, a narrow rim inside hypochile lobes, two 1–1.2 mm long cornua on...
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Impatiens jinpingensis, a new species of Balsaminaceae from Yunnan, China, is described and illustrated. It is compared to the three similar species (Impatiens kamtilongensis, Impatiens wuchengyihii and Impatiens lancisepala) from Yunnan, China.
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The genus Impatiens (Balsaminaceae) is one of the most difficult genera for making effective herbarium specimens because of its tender and complicated flowers. The preparation of flowers is always one of the most important steps in the collections of Impatiens. The present paper demonstrates a method to prepare flowering specimens of Impatiens in t...
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Litostigma, a new Chinese genus of Gesneriaceae, is described and illustrated. It is characterised by its large flowers in comparison to its small leaves; slightly revolute leaf margins; 1-flowered cymes; crateriform or disciform stigma; and long ovoid capsule. Rather surprisingly, Litostigma falls among the basal didymocarpoid Gesneriaceae. Two ne...
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Raphiocarpus maguanensis Y.M. Shui & W.H. Chen, a new species of Gesneriaceae from Yunnan Province, China, is described and illustrated. The new species is compared to the fairly similar R. longipedunculatus.
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Daphne hekouensis H.W. Li & Y.M. Shui sp. nova (Thymelaeaceae) from China (Yunnan Province, Hekou County) is described and illustrated. The new species with its axillary inflorescence and 5-lobed white calyx tube is most similar to D. axillaris, but can be easily distinguished by the larger leaves (13–21 × 5–8 cm), longer calyx tubes (15–25 mm), la...
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A new species, Lysimachia gesnerioides Y.M. Shui & M.D. Zhang (Myrsinaceae) from Yunnan and Vietnam, is described and illustrated. It is morphologically most similar to L. physaloides, L. chapaensis and L. grandifolia. The distinguishing characters are given in a key to the four species.
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Chen, W. H. (Kunming Institute of Botany, the Chinese Academy of Sciences, Heilongtan, Kunming, Yunnan 650204, China; whchen@mail.kib.ac.cn) & Y. M. Shui (Kunming Institute of Botany, the Chinese Academy of Sciences, Heilongtan, Kunming, Yunnan 650204, China; ymshui@mail.kib.ac.cn). A new species of Thrixspermum (Orchidaceae) from China. Brittonia...

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