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Issue: Vol. 664 No. 2: 5 Sept. 2024
Type: Article
Published: 2024-09-05
DOI: 10.11646/phytotaxa.664.2.6
Page range: 139-145
Abstract views: 185
PDF downloaded: 14

Chiloschista eckhardii (Orchidaceae, Aeridinae), a new miniature leafless orchid from northern Vietnam

School of Education, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho City, Vietnam
Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197022, St. Petersburg, Russia
Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197022, St. Petersburg, Russia
Korea Orchid Association & orchid columnist, 102, #2411, DaeKwang Tower, 45-3 Igidaegongwon-ro 26beon-gil, Nam-gu, Busan, Korea
Institute of Applied Technology, Thu Dau Mot University, No 6 Tran Van On Street, Phu Hoa Ward, Thu Dau Mot City, Binh Duong Province, Vietnam
Institute of Social Sciences of Central Highlands – Viet Nam Academy of Social Sciences, No 1A Nguyen Van Linh Street, Tan An Ward, Buon Ma Thuot City, Dak Lak Province, Vietnam
Institute of Tropical Biology Vietnam Academy of Science and Technology, 85 Tran Quoc Toan, District 3, Ho Chi Minh City, Vietnam
Independent Researcher, Weimar, Germany
Institute of Tropical Biology Vietnam Academy of Science and Technology, 85 Tran Quoc Toan, District 3, Ho Chi Minh City, Vietnam
Chiloschista parishii Chiloschista glabrisepala Chiloschista quangdangii plant taxonomy plant diversity Monocots

Abstract

Chiloschista eckhardii, discovered recently in Ha Giang Province of northern Vietnam, is described as a new species to science. The newly discovered species belongs to group of plants having yellow sepals and petals spotted with dark brown marks. Our newly identified species may be misidentified as C. glabrisepala, C. parishii, or C. quangdangii, which share a similar hairy band on the central callus of the lip, whereas this feature is glabrous in other related species. The new species differs from the similar species mentioned in having a callus that is slightly shorter than the median lobe and a densely hairy median part of the lip callus. In contrast, C. glabrisepala has a callus that is as long as or slightly longer than the median lobe, with hairs only on the apex of the disc callus. C. parishii has a callus shorter than the median lobe, with the lip disc and callus entirely hairy, while C. quangdangii has a distinctly shorter callus that is densely hairy. This paper presents the description of the new species, along with data on its habitat and phenology, a color plate detailing the flower structure, and notes comparing it with similar species.

References

  1. Averyanov, L.V., Tran, H.T., Truong, B.V., Nguyen, V.C., Nguyen, H.T., Maisak, T., Nguyen, S.K. & Nguyen, V.K. (2022) New orchids in the flora of Vietnam Ⅳ (Orchidaceae, Aeridinae). Phytotaxa 555 (2): 113–135. https://doi.org/10.11646/phytotaxa.555.2.1
  2. Chen, X.Q. & Wood, J.J. (2009) Chiloschista Lindley. Orchidaceae. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vol. 25. Science Press, Beijing, & Missouri Botanical Garden Press, Saint Louis, pp. 1–506.
  3. Dalström, S. & Kolanowska, M. (2020) A new yellow-flowered Chiloschista (Orchidaceae: Aeridinae) from Thailand. Lankesteriana 20 (2): 241–248. https://doi.org/10.15517/lank.v20i2.43454
  4. Vo, D.T., Averyanov, L.V., Maisak, T., Nguyen, V.C., Dang, M.Q., Dang, V.S., Truong, Q.T. & Vuong, T.B. (2023) Chiloschista quangdangii, a new leafless orchid (Orchidaceae) from northern Vietnam. Phytotaxa 606 (1): 79–84. https://doi.org/10.11646/phytotaxa.606.1.8
  5. Garay, L.A. (1972) On the systematics of the monopodial Orchids I. Botanical Museum Leaflets 23 (4): 149–212.
  6. Ghalley, B.B., Dalström, S., Sagar, L. & Gurung, M.M. (2022) A new early-flowering spotted Chiloschista (Aeridinae) from Bhutan. Lankesteriana 22 (2): 117–122. https://doi.org/10.15517/lank.v22i2.51751
  7. Guillaumin, A. (1957) Plantes nouvelles, rares ou critiques des serres du Muséum. Bulletin du Muséum national d’histoire naturelle 2 (29): 345–348.
  8. Gyeltshen, C., Dalström, S., Gyeltshen, N. & Tobgay, K. (2019) A new spotted Chiloschista (Orchidaceae: Aeridinae) from Bhutan. Lankesteriana 19 (1): 23–29. https://doi.org/10.15517/lank.v19i1.37030
  9. Gyeltshen, N., Gyeltshen, C., Tobgay, K., Dalström, S., Gurung, D.B., Gyeltshen N. & Ghalley, B.B. (2020) Two new spotted Chiloschista species (Orchidaceae: Aeridinae) from Bhutan. Lankesteriana 20 (3): 281–299. https://doi.org/10.15517/lank.v20i3.44149.
  10. Lindley, J. (1832) Angraecum eburneum. Botanical register 18: Pl. 1522.
  11. Pham, P.D., Averyanov, L.V., Nguyen, D.H., Maisak, T., Nguyen, V.C., Dang, M.Q., Truong, B.V. & V.S. Dang (2022) A new species of Chiloschista (Orchidaceae, Aeridinae) from northern Vietnam. Phytotaxa 556 (1): 94–98. https://doi.org/10.11646/phytotaxa.556.1.8
  12. POWO (2024) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet. Available from: http://www.plantsoftheworldonline.org/ (accessed 14 August 2024).
  13. Reichenbach, H.G. (1868) Thrixspermum luniferum. Gardeners Chronicle 3: 768. Available from: https://www.biodiversitylibrary.org/page/26052168 (accessed 4 September 2024)
  14. Schlechter, R. (1919) Chiloschista yunnanensis. In: Orchideologiae Sino-Japonicae Prodromus. Eine kritiche Besprechung der Orchideen Ost-Asiens. Repertorium specierum novarum regni vegetabilis. Beihefte 4: 74.
  15. Seidenfaden, G. (1988) Orchid genera in Thailand XIV. Fifty-nine vandoid genera. Opera Botanica 95: 1–398.
  16. Smith, J.J. (1905) Chiloschista. Die Orchideen von Java In: Flore de Buitenzorg, part 6. E.J. Brill, Leiden, 672 pp.
  17. Vo, D.T., Averyanov, L.V., Maisak, T.V., Nguyen, V.C., Dang, M.Q., Dang, V.S., Truong, Q.T. & Truong, B.V. (2023) Chiloschista quangdangii, a new leafless orchid (Orchidaceae) from northern Vietnam. Phytotaxa 606 (1): 79–84. https://doi.org/10.11646/phytotaxa.606.1.8
  18. Wojtas, K.P., Bandara, C. & Kumar, P. (2023) A new species of Chiloschista (Orchidaceae, Aeridinae) from Myanmar. Phytotaxa 612 (1): 57–066. https://doi.org/10.11646/phytotaxa.612.1.4
  19. Wood, J.J. (2014) Chiloschista. In: Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Rasmussen, F.N. (Eds.) Genera Orchidacearum, Volume 6, Epidendroideae 3. Oxford University Press, Oxford, 544 pp. [pp. 152–156.]
  20. Zhou, X., Cheng, Z., Liu, Q., Zhang, J., Hu, A., Huang, M., Hu, C. & Tian, H. (2016) An updated checklist of Orchidaceae for China, with two new national records. Phytotaxa 276 (1): 1–248. https://doi.org/10.11646/phytotaxa.276.1.1