Bonnaya gracilis a novel find for the flora of Uttarakhand, India
DOI:
https://doi.org/10.11609/jott.9884.17.11.27997-28000Keywords:
Doon valley, forest ecosystems, Linderniaceae, new record, semi-aquatic, shallow water, staminodes, swamps, toreniaAbstract
Bonnaya gracilis was transferred from the genus Torenia to the genus Bonnaya in 2021. The species resembles B. antipoda but can be distinguished by the presence of dense yellow hairy staminodes and long vertical fruiting pedicels. This species only occurs in Nepal, Myanmar, Bangladesh, and India. In India distribution of this species is not very clear hence this paper reports Bonnaya gracilis from Uttarakhand along with their description, images and location map.
References
Dakshini, K.M.M. (1960a). The vegetation of Mothronwala swamp forest: A preliminary survey. Bulletin of the Botanical Survey of India 2(1): 57–59.
Dakshini, K.M.M. (1960b). The vegetation of Mothronwala swamp forest (Plant communities of swamp zone). Indian Forester 86: 728–733.
Deva, S. & B.S. Aswal (1974). Taxonomy and ecology of Mothronwala swamp: A reassessment. Indian Forester 100(1): 12–19.
Gaur, R.D. (1999). Flora of the District Garhwal, North West Himalaya (with ethnobotanical notes). Trans Media, Srinagar (Garhwal), U.P., India,
Hooker, J.D. (1884). The Flora of British India (Vol. 4, pp. 246–319). State for India in Council.
Kanjilal, U.N. (1901). Swamp forests in Dehradun, N.W. Province. Indian Forester 27: 228–230.
Liang, Y.S., & J.C. Wang (2014). A systematic study of Bonnaya section Bonnaya (Linderniaceae). Australian Systematic Botany 27: 180–198. https://doi.org/10.1071/SB14002
Mir, T.A., S. Dhyani & M. Jan (2018). Taxonomic evaluation of monocot flora in Karwapani swamp forest, Dehradun, Uttarakhand. Indian Forester 144(3): 260–263. https://doi.org/10.36808/if/2018/v144i3/122754
Pal, A., M.M. Sardesai & M. Chowdhury (2021). Transfer of Torenia gracilis Benth. to Bonnaya as Bonnaya gracilis sp. nov. (Linderniaceae). Nordic Journal of Botany 39(8): 1–7. https://doi.org/10.1111/njb.03292
Pennell, F.W. (1943). Scrophulariaceae of the Western Himalayas. The Academy of Natural Sciences, 163 pp.
POWO. (2024). Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/. Accessed on 15.vii.2024.
Rao, R.R. & B.D. Sharma (1990). A Manual for Herbarium Collections. Botanical Survey of India, 25 pp.
Roy, S., B. Das & N. Nath (2024). Bonnaya gracilis (Linderniaceae): a new distributional record for northeast India. Journal of Economic & Taxonomic Botany 48(3): 119–123. https://doi.org/10.61080/JETB/V48/i3/2024/119-123
Sardesai, V.A., S.S. Sathe & V.B. Shimpale (2019). Bonnaya sanpabloensis (Linderniaceae): an addition to the flora of India. Rheedea 29(2): 178–180. https://doi.org/10.22244/rheedea.2019.29.2.03
Sharma, N. & S.P. Joshi (2008). Comparative study of a freshwater swamp of Doon Valley. Journal of American Science 4(1): 7–10.
Uniyal, B.P., J.R. Sharma, U. Choudhery & D.K. Singh (2007). Flowering Plants of Uttarakhand (A Checklist). Bishen Singh Mahindra Pal Singh, Dehradun, 404 pp.
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Copyright (c) 2025 Monal R. Jadhav, Revan Y. Chaudhari, Tanveer A. Khan

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