Begonia modestiflora Kurz. A, B. Habit 1871
Creators
- 1. Environmental Engineering and Management Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam & Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- 2. Institute of Applied Technology, Thu Dau Mot University, 06 Tran Van On street, Phu Hoa Ward, TP. Thu Dau Mot City, Binh Duong Province, Vietnam & dinhquangdiep @ tdmu. edu. vn; https: // orcid. org / 0000 - 0002 - 1462 - 0070
- 3. Institute of Applied Technology, Thu Dau Mot University, 06 Tran Van On street, Phu Hoa Ward, TP. Thu Dau Mot City, Binh Duong Province, Vietnam & nguyenvancanh @ gmail. com; https: // orcid. org / 0000 - 0001 - 9578 - 0342
- 4. Department of Silviculture foundation and Forest Phytodiversity, Silviculture Research Institute, Vietnamese Academy of Forest Sciences, 46 Duc Thang ward, Bac Tu Liem District, Ha Noi City, Vietnam & trinhngocbon 85 @ gmail. com; https: // orcid. org / 0000 - 0001 - 7530 - 8008
- 5. Faculty of Agriculture and Forestry, Tay Nguyen University, 567 Le Duan street, Ea Tam Ward, Buon Ma Thuot city, Dak Lak Province, Vietnam & nddinh @ ttn. edu. vn; https: // orcid. org / 0000 - 0002 - 9475 - 8351
- 6. Tay Nguyen University, 567 Le Duan street, Ea Tam Ward, Buon Ma Thuot city, Dak Lak Province, Vietnam & nguyenthe _ hien @ live. com; https: // orcid. org / 0000 - 0002 - 0822 - 0038
- 7. Herbarium of Taiwan Forestry Research Institute (TAIF), Taiwan Forestry Research Institute, No. 53, Nan-Hai Road, Taipei 100, Taiwan & varalba @ gmail. com; https: // orcid. org / 0000 - 0002 - 8564 - 5793
Description
Begonia modestiflora Kurz (1871: 296). (Figs. 4 & 5).
TYPE:— MYANMAR. Arracan, Baronga Island, Oct 1869, W. S. Kurz s.n. (Lectotype, K; Isolecotype, K (designated by Hughes, 2008)).
Begonia sootepensis Craib, Bull. Misc. Inform. Kew 1911:57 (1911). Begonia modestiflora var. sootepensis (Craib.) Tebbitt, Begonias p. 248 (2005). Begonia yunnanensis var. sootepensis (Craib) Craib, Aberdeen Univ. Stud. 47: 96 (1912). TYPE:— THAILAND. Chiengmai, Doi Sootep, A.F.G. Kerr 785 (Lecotype, K; Isolecotypes, B, BM, E, P (designated by Hughes, 2008)).
Begonia sootepensis var. thorelii Gagnep., Fl. Indo-Chine 2:1104 (1921). Begonia yunnanensis var. thorelii (Gagnep.) Golding & Kareg., Phytologia 54(7): 499 (1984). TYPE:— LAOS. Bassac, 1866-1868, Thorel s.n. (Lectotype, P; Isolecotype, P (designated by Hughes, 2008)).
Begonia yunnanensis H.Lév., Repert. Spec. Nov. Regni Veg. 7:20 (1909). TYPE:— CHINA. Yunnan, Henry 12403 (Lectotype, E; Isolecotypes, B, BM, HBG, K, L (designated by Hughes, 2008).
Distribution and ecology:—It grows on wet humus on rock surfaces and is locally common. It can be seen growing alongside shrubs and herbaceous species such as Adiantum spp., Impatiens spp., mosses, Poaceae, and Selaginella spp. Despite the habitat location falling within Chu Yang Sin National Park buffer zone, the plant is threatened by habitat loss of unregulated activities such as forest farming, agricultural burning, and the impact of tourism.
Conservation Status:—More fieldwork in Vietnam is needed to give a precise evaluation of its population size and dynamics. We assess B. modestiflora to be Data Deficient.
Specimen examined:— VIETNAM. Dak Lak Province: Lak district, Yang Tao commune, Bim Bip waterfall, Chu Yang Sin National Park, evergreen lowland forests on silicate rocks, around point 12°26’00.8”N 108°15’31.1”E, at elevation 600–650 m a.s.l., 17 August 2020, Nguyen Van Canh, Nguyen Van Khuong, PVT1025 (SGN, VNM).
Notes:— Begonia modestiflora is a widespread species that occurs in Bangladesh, China, Thailand, Laos and Myanmar (Hughes, 2015–present; Shui et al., 2019), and hence shows considerable variation in morphology. Nguyen’s checklist (Nguyen, 2003) listed B. minicarpa (Hara, 1972) as occuring in Vietnam, a species that is likely to be confused with B. modestiflora, as it shares a similar erect habit, ovate-lanceolate leaves, 4-tepaled staminate flowers and unequal ovary wings. It differs in being a smaller species that is endemic to the Himalayan region, and B. modestiflora can be further distinguished by its many-flowered (vs. few-flowered) inflorescences, 5 tepaled (vs. 3-tepaled) pistillate flowers and fruits twice as small. The specimen cited here clarifies B. modestiflora as native to Vietnam, rather than B. minicarpa.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- S, K , SGN, VNM , TYPE , TYPE, E, B, BM, HBG, K, L , TYPE, P
- Event date
- 2020-08-17
- Family
- Begoniaceae
- Genus
- Begonia
- Kingdom
- Plantae
- Order
- Cucurbitales
- Phylum
- Tracheophyta
- Scientific name authorship
- Kurz. A, B. Habit
- Species
- modestiflora
- Taxon rank
- species
- Type status
- lectotype
- Verbatim event date
- 2020-08-17
- Taxonomic concept label
- Begonia modestiflora A, 1871 sec. Pham, Dinh, Nguyen, Trinh, Nguyen, Nguyen & Lin, 2021
References
- Kurz, S. (1871) Ueber einige neue und unvollkommen bekannte Indissche Pflanzen. Flora 54 (19): 289 - 298.
- Hughes, M. (2008) An Annotated Checklist of Southeast Asian Begonia. Royal Botanic Garden Edinburgh, 164 pp.
- Nguyen, T. B. (2003) Begoniaceae- h o Thu h ai dy ong. In: Nguyen, T. B. (Ed.) Checklist of Plant Species of Vietnam, vol. 2. Agric. Publ. House, Hanoi, pp. 408 - 414.