Research Paper

Two new species of Gastrochilus D. Don (Aeridinae, Vandeae, Epidendroideae, Orchidaceae) in China

Meng-Kai Li, Jian-Ping Deng, Yu-Ci Wei, Hao-Xian Zheng, Jun-Wen Zhai, Yan Luo, Si-Ren Lan

Published on: 23 May 2026

Page: 472 - 476

DOI: 10.6165/tai.2026.71.472

  • BibTeX
    •
  • EndNote
    •
  • RIS
    •

    Abstract

    Two new species of genus Gastrochilus, namely G. baoshanensis and G. motuoensis, were collected respectively in Yunnan Province and Xizang Autonomous Region. Both of them belong to Section Caespitosi. G. baoshanensis is similar to G. setosus and G. xizangensis, but differs in leaves without awns, shorter ovary and pedicel, bilobed epichile, and the wings split at the apex. G. motuoensis is extremely similar to G. platycalcaratus, but the former has a 4 mm pedicel and ovary, ovate lateral sepals, and the hypochile is not compressed from the middle to the tip.

    Keyword: Classification, Gastrochilus platycalcaratus, Gastrochilus setosus, Gastrochilus xizangensis, Section Caespitosi

    Literature Cited

    Averyanov, L.V. 1997 New species of orchids (Orchidaceae) from Vietnam. Botanicheskii Zhurnal 82: 131–148

    Averyanov, L.V., Nguyen, V.C., Truong, B.V., Maisak, T.V., Luu, H.T., Nguyen, K.S., Dinh, Q.D., Nguyen, T., Chu, X.C., Tran, G., Nguyen, V.K., Le, H.S. 2018 New orchids (Orchidaceae: Cymbidieae and Vandeae) in the flora of Vietnam. Taiwania 63(2): 119–138.
    DOI: 10.6165/tai.2018.63.119View Article Google Scholar

    Chen, S.C., Tsi, Z.H., Wood, J.J. 2009 Gastrochilus D. Don. In: Wu, Z.Y., Raven, P.H., Hong, D.Y. (Eds.) Flora of China 25 (Orchidaceae). Science Press, Beijing and Missouri Botanical Garden Press, St. Louis, pp. 491–498.

    Chen, W.S., Lei, M., Ma, C.B., Jin, X.H., Wang, X.L. 2022 Gastrochilus xizangensis (Aeridinae, Vandeae, Orchidaceae), a new species from Xizang, China. Phytotaxa 566(2): 219–226.
    DOI: 10.11646/phytotaxa.566.2.6View Article Google Scholar

    Christenson, E.A. 1985 Sarcanthine genera. Vol. 4. Gastrochilus D. Don, with a synopsis of the genus. American Orchid Society Bulletin 54: 1111–1116.

    Seidenfaden, G. 1988 Orchid genera in Thailand XIV. Fifty-nine vandoid genera. Opera Bot. 95: 1–398.

    Don, D. 1825 Gastrochilus. Prodromus Florae Nepalensis. Gale, London, p. 32.

    Gogoi, K., Rinya, K., Kumar Reddy, S. 2019 Gastrochilus platycalcaratus (Rolfe) Schltr. (Orchidaceae: Epidendroideae: Vandeae: Aeridinae) - a new record for India. Pleione 13(2): 407–410.
    DOI: 10.26679/Pleione.13.2.2019.407-410View Article Google Scholar

    Govaerts, R., Bernet, P., Kratochvil, K., Gerlach, G., Carr, G., Alrich, P., Pridgeon, A.M., Pfahl, J., Campacci, M.A., Holland Baptista, D., Tigges, H., Shaw, J., Cribb, P.J., George, A., Kreuz, K., Wood, J. 2022 World Checklist of Orchidaceae. The Board of Trustees of the Royal Botanic Gardens, Kew. Available from: http://apps.kew.org/wcsp/monocots/ (accessed 24 March 2022)

    Kumar, P., Gale, S.W., Kocyan, A., Fischer, G.A., Averyanov, L.V., Borosova, R., Bhattacharjee, A., Li, J.H., Pang, K.S. 2014 Gastrochilus kadooriei (Orchidaceae), a new species from Hong Kong, with notes on allied taxa in section Microphyllae found in the region. Phytotaxa 164(2): 91–103.
    DOI: 10.11646/phytotaxa.164.2.3View Article Google Scholar

    Li, J.W., Ya, J.D., Ye, D.P., Liu, C., Liu, Q., Pan, R., He, Z.X., Pan, B., Cai, J., Lin, D.L., Jin, X.H. 2021 Taxonomy notes on Vandeae (Orchidaceae) from China: five new species and two new records. Plant Divers. 43(5): 379–389.
    DOI: 10.1016/j.pld.2021.01.009View Article Google Scholar

    Li, M.K., Yu, Y.P., Ma, P.Y., Chen, X.D., Deng, J.P., Liu, Q., Luo, Y., Xing, Z. 2023 Gastrochilus linzhiensis (Aeridinae, Vandeae, Epidendroideae, Orchidaceae), a new species from Xizang, China. Taiwania 68(3): 314?317
    DOI: 10.6165/tai.2023.68.314View Article Google Scholar

    Liu, Q., Gao, J.Y. 2018 Gastrochilus dulongjiangensis (Aeridinae, Vandeae, Epidendroideae, Orchidaceae), a new species from Yunnan Province, China. Phytotaxa 340(3): 283–293.
    DOI: 10.11646/phytotaxa.340.3.11View Article Google Scholar

    Liu, Q., Wu, X.F., Zhou, S.S., Li, J.W., Jin, X.H. 2023 New species and record of Gastrochilus (Orchidaceae, Aeridinae) from China and Laos. Phytotaxa 585(3): 210–224.
    DOI: 10.11646/phytotaxa.585.3.3View Article Google Scholar

    Liu, Q., Song, Y., Jin, X.H., Gao, J.Y. 2019 Phylogenetic relationships of Gastrochilus (Orchidaceae) based on nuclear and plastid DNA. Bot. J. Linn. Soc. 189(3): 228–243.
    DOI: 10.1093/botlinnean/boy084View Article Google Scholar

    Liu, Q., Tan, Y.H., Gao, J.Y. 2016 A new species of Gastrochilus (Aeridinae, Vandeae, Orchidaceae) and a new record species from Yunnan, China. Phytotaxa 282(1): 66–70.
    DOI: 10.11646/phytotaxa.282.1.8View Article Google Scholar

    Nguyen, D.H., Averyanov, L.V., Dang, V.S., Bui, V.H., Maisak, T.V., Truong, B.V. 2021 Gastrochilus dresslerii (Orchidaceae), a new species from Northern Vietnam. Phytotaxa 498(2): 145–149.
    DOI: 10.11646/phytotaxa.498.2.8View Article Google Scholar

    Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Rasmussen, F.N. 2014 Gastrochilus D. Don. In: Genera Orchidacearum, Epidendroideae (part three), vol. 6. Oxford University Press, Oxford, pp.188–191.

    Rao, W.H., Liu, Z.J., Zhang, G.Q., Chen, X.H., Huang, J., Chen, G.Z., Chen, L.J. 2019 A new epiphytic species of Gastrochilus (Orchidaceae: Epidendroideae) from Yunnan, China. Phytotaxa 413(4): 296–300.
    DOI: 10.11646/phytotaxa.413.4.5View Article Google Scholar

    Tsi, Z.H. 1996 A preliminary revision of Gastrochilus (Orchidaceae). Guihaia 16: 123–154.

    Zhang, J.Y., Cheng, Y.H., Liao, M., Jin, S.L., Qu, C.M., Tan, Y.C., Plenkovi?-Moraj, A., Xu, B. 2022 Gastrochilus wolongensis (Orchidaceae): a new species from Sichuan, China, based on molecular and morphological data. Ecosyst. Health Sustain. 8(1): 2101546.
    DOI: 10.1080/20964129.2022.2101546View Article Google Scholar