1,721,340 research outputs found
Validation and morphology of Begonia fagopyrofolia in B. sect. Stolonifera (Begoniaceae) in China
No full textChen, Wen-Hong, Wu, Jian-Yong, Radbouchoom, Sirilak, Shui, Yu-Min (2021): Validation and morphology of Begonia fagopyrofolia in B. sect. Stolonifera (Begoniaceae) in China. Phytotaxa 479 (1): 105-113, DOI: 10.11646/phytotaxa.479.1.8, URL: http://dx.doi.org/10.11646/phytotaxa.479.1.
Begonia nangunheensis, a new species of Begoniaceae from Yunnan province, China
No full textGuo, Shi-Wei, Chen, Wen-Hong, Aung, Aung, Radbouchoom, Sirilak, Zhao, Jin-Chao, Li, Zhi-Hong, Shui, Yu-Min (2021): Begonia nangunheensis, a new species of Begoniaceae from Yunnan province, China. Phytotaxa 480 (2): 201-209, DOI: 10.11646/phytotaxa.480.2.9, URL: http://dx.doi.org/10.11646/phytotaxa.480.2.
FIGURE 2 in Validation and morphology of Begonia fagopyrofolia in B. sect. Stolonifera (Begoniaceae) in China
No full textFIGURE 2. Micromorphology of the leaf epidermis in Begonia cehengensis (A–H) and B. fagopyrofolia (I–P). A–D and I–L. The adaxial surface; E–G and M–P. The abaxial surface; A, D, E, F and I, K, M. Trichomes; B, C, J. The epidermal cells; A, E, G and I, K, L, N, P. Glands; G, H and N, O. Stomata. Note: g. Glands; s. Stomata; p. Tuberulate surface of trichome cells; sm. Smooth surfaces of trichome cells. Scale bar: A, K=300μm; B, J, L, M=100μm; C, D, H O, P=50μm; E, I=500μm; F=20μm; G, N=200μm.Published as part of Chen, Wen-Hong, Wu, Jian-Yong, Radbouchoom, Sirilak & Shui, Yu-Min, 2021, Validation and morphology of Begonia fagopyrofolia in B. sect. Stolonifera (Begoniaceae) in China, pp. 105-113 in Phytotaxa 479 (1) on page 107, DOI: 10.11646/phytotaxa.479.1.8, http://zenodo.org/record/541344
Figure 8 from: Chen W-H, Radbouchoom S, Nguyen HQ, Nguyen HT, Nguyen KS, Shui Y-M (2018) Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China. In: Jin X-H, Shui Y-M, Tan Y-H, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 65-85. https://doi.org/10.3897/phytokeys.94.23248
No full textFigure 8 Begonia rhytidophylla Y.M. Shui & W.H. Chen A and B Habitat C Plant D Stipule and petiole E Close-up of adaxial leaf F View of adaxial leaf G View of abaxial leaf H Young leaf adaxially I Young leaf abaxially J Inflorescence K Serial cross sections of ovary L Staminate flower, face view, side view and dorsal view M Pistillate flower, face view, side view and dorsal view. (A, B, photographs by Y.M. Shui; C–M by S. Radbouchoom)
Figure 6 from: Chen W-H, Radbouchoom S, Nguyen HQ, Nguyen HT, Nguyen KS, Shui Y-M (2018) Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China. In: Jin X-H, Shui Y-M, Tan Y-H, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 65-85. https://doi.org/10.3897/phytokeys.94.23248
No full textFigure 6 Begonia minissima H.Q. Nguyen, Y.M. Shui & W.H. Chen A Habitat B Plant with rhizome C View of adaxial leaf D View of abaxial leaf E Inflorescence F Staminate flower, face view, side view and dorsal view G Pistillate flower, side views and dorsal view H Capsule I Serial cross sections of ovary. (A–D photographs by Y.M. Shui; E–I by S. Radbouchoom)
Figure 2 from: Chen W-H, Radbouchoom S, Nguyen HQ, Nguyen HT, Nguyen KS, Shui Y-M (2018) Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China. In: Jin X-H, Shui Y-M, Tan Y-H, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 65-85. https://doi.org/10.3897/phytokeys.94.23248
No full textFigure 2 Begonia albopunctata Y.M. Shui, W.H. Chen & H.Q. Nguyen A Habitat B Inflorescence C View of adaxial leaf D Close-up of adaxial leaf E View of abaxial leaf F Close-up of abaxial leaf G Pistillate flower, side view H Staminate flower, face view I Pistillate flower, face view J Fruits K Serial cross sections of ovary. (A–J photographs by Y.M. Shui; K by S. Radbouchoom)
Figure 3 from: Chen W-H, Radbouchoom S, Nguyen HQ, Nguyen HT, Nguyen KS, Shui Y-M (2018) Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China. In: Jin X-H, Shui Y-M, Tan Y-H, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 65-85. https://doi.org/10.3897/phytokeys.94.23248
No full textFigure 3 Begonia bambusetorum H.Q. Nguyen, Y.M. Shui & W.H. Chen A Habitat B Plant C View of adaxial leaf D View of abaxial leaf E Close-up of adaxial leaf F Close up of abaxial leaf G Stipule and petiole H Staminate flower, face view, side view and dorsal view I Pistillate flower, face view and side view J Fruits K Serial cross sections of ovary. (A–D photographs by Y.M. Shui; E–K by S. Radbouchoom)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Begonia fimbristipula subsp. siamensis (sect. Diploclinium, Begoniaceae), a new taxon of the megadiverse genus endemic to Thailand
No full textThe genus Begonia has not only been recognised to be one of the mega-diverse plant genera but also as one found to comprise many undiscovered species. In particular, the increase of extensive field surveys in tropical regions of Southeast Asia has added to the discovery of many new species that are often found only in a few localities. In this study, the new taxon Begonia fimbristipula subsp. siamensis subsp. nov. from Thailand is described. The Thailand accessions are highly similar in their morphology to accessions of B. fimbristipula from southern China but differ in their tuber shape, peduncle trichomes, petiole trichomes and number of female tepals. The new taxon has been found only in the northern parts of Thailand occurring at elevations above 1,300 meters. The new findings not only contribute to our knowledge of the plant diversity of Thailand but provide also critical information contributing to the protection of this species. In China, this species is endangered which is of special concern given its utilisation as a medical herb in traditional Chinese medicine. Considering IUCN Red List Categories, the new subspecies is considered to be Vulnerable. The disjunct distribution of the two subspecies of B. fimbristipula encourages urgently needed comparative taxonomic studies across the Indo-Burma biodiversity hotspot
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