Abstract
Gastrochilus xizangensis, a new species of Gastrochilus from Xizang, China, is described and illustrated based on morphological characters and DNA evidence. Morphological comparisons indicate that the new species G. xizangensis is highly similar to G. raraensis , G. deltoglossus and G. setosus, from which it differs by its lip with two ridges ranging from spur into central part, ridges with dense short hairs, lip margins membranous and white, sparsely with short hairs.
References
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<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">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) </span><span lang="en-GB"><em>World Checklist of Orchidaceae</em></span><span lang="en-GB">. The Board of Trustees of the Royal Botanic Gardens, Kew. Available from: http://apps.kew.org/wcsp/monocots/ (accessed 24 March 2022)</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Hsu, T.C., Hsieh, S.I., Wu, J.H. & Hung, H.C. (2018) </span><span lang="en-GB"><em>Gastrochilus deltoglossus</em></span><span lang="en-GB"> (Orchidaceae: Epidendroideae: Vandeae: Aeridinae), a new species from Taiwan.</span><span lang="en-GB"><em> Taiwania</em></span><span lang="en-GB">, 63 (4): 360–365.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Kalyaanamoorthy, S., Minh, B.Q., Wong, T., Haeseler, A. von. & Jermiin, L.S. (2017) ModelFinder: fast model selection for accurate phylogenetic estimates. </span><span lang="en-GB"><em>Nature Methods</em></span><span lang="en-GB">, 14: 587–589. https://doi.org/10.1038/nmeth.4285</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Li, J.W., Ya, J.D., Ye, D.P., Liu, C., Liu, Q., Pan, R., He, Z.X., Cai, J., Lin, D.L. & Jin, X.H. (2021) Taxonomy notes on Vandeae (Orchidaceae) from China: Five new species and two new records. </span><span lang="en-GB"><em>Plant Diversit</em></span><span lang="en-GB"> 43 : 379–389. https://doi.org/10.1016/j.pld.2021.01.009</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Liu, Q. & Gao, J.Y. (2018) </span><span lang="en-GB"><em>Gastrochilus</em></span> <span lang="en-GB"><em>dulongjiangensis</em></span><span lang="en-GB"> (Aeridinae, vandeae, epidendroideae, orchidaceae), a new species from yunnan province, china. </span><span lang="en-GB"><em>Phytotaxa</em></span><span lang="en-GB"> 340: 293–296. http://doi.org/10.11646/phytotaxa.340.3.11</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Liu, Q., Tan, Y.H. & Gao, J.Y. (2016) A new species of </span><span lang="en-GB"><em>Gastrochilus </em></span><span lang="en-GB">(Aeridinae, Vandeae, Orchidaceae) and a new record species from Yunnan, China. </span><span lang="en-GB"><em>Phytotaxa</em></span><span lang="en-GB">,</span> <span lang="en-GB">282: 66–70. https://doi.org/10.11646/phytotaxa.282.1.8</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Liu, Q ., Song, Y., Jin, X.H. & Gao, J.Y. (2019) Phylogenetic relationships of </span><span lang="en-GB"><em>Gastrochilus</em></span><span lang="en-GB"> (Orchidaceae) based on nuclear and plastid DNA data. </span><span lang="en-GB"><em>Botanical Journal of the Linnean Society</em></span><span lang="en-GB">, 189 (3): 228–243. https://doi.org/10.1093/botlinnean/boy084</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Miller, M.A., Pfeiffer, W. & Schwartz, T. (2010) Creating the CIPRES Science Gateway for inference of large phylogenetic trees. </span><span lang="en-GB"><em>In: Gateway Computing Environments Workshop</em></span> <span lang="en-GB"><em>(GCE)</em></span><span lang="en-GB">. pp. 1–8. https://doi.org/10.1109/GCE.2010.5676129</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Minh, B.Q., Schmidt, H.A., Chernomor, O., Schrempf, D., Woodhams, M.D., Haeseler, A. von. & Lanfear, R. (2020) IQ-TREE 2: New models and efficient methods for phylogenetic inference in the genomic era. </span><span lang="en-GB"><em>Molecular Biology and Evolution</em></span><span lang="en-GB">, 37: 1530–1534. https://doi.org/10.1093/molbev/msaa015</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Pridgeon, A., Cribb, P., Chase, M. & Rasmussen, F.N. (2014) </span><span lang="en-GB"><em>Genera orchidacearum, Epidendroideae (part three)</em></span><span lang="en-GB">,</span> <span lang="en-GB">Oxford University Press, Oxford, pp. 188–191.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Tsi, Z.H. (1999) </span><span lang="en-GB"><em>Gastrochilus. In: Flora Reipublicae popularis Sinicae</em></span><span lang="en-GB">. 19. Science Press, Beijing, pp. 399–420.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Tsi, Z.H. (1996) A preliminary revision of </span><span lang="en-GB"><em>Gastrochilus </em></span><span lang="en-GB">(Orchidaceae). </span><span lang="en-GB"><em>Guihaia </em></span><span lang="en-GB">16: 123–154. </span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Yi, S.R., Huang, Y., Xiao, B., Shen, M.L. & Li, J. (2010) </span><span lang="en-GB"><em>Gastrochilus brevifimbriatus </em></span><span lang="en-GB">(Orchidaceae, Aeridinae), a new species from Chongqing, China. </span><span lang="en-GB"><em>Novon </em></span><span lang="en-GB">20: 113–116. https://doi.org/10.3417/2008013 </span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Zhang, D., Gao, F.I., Jakovlić, I., Zou, H., Zhang, J., Li, W.X. & Wang, G.T. (2019) PhyloSuite: An integrated and scalable desktop platform for streamlined molecular sequence data management and evolutionary phylogenetics studies. </span><span lang="en-GB"><em>Molecular Ecology Resources</em></span><span lang="en-GB"> 20 (1): 348–355. https://doi.org/10.1111/1755-0998.13096</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Zhou, Z.H., Shi, R.H., Zhang, Y. & Jin, X.H. (2021) Orchid conservation in China from 2000 to 2020: Achievements and perspectives.</span><span lang="en-GB"><em>Plant Diversity</em></span><span lang="en-GB"> 43 : 343–349. https://doi.org/10.1016/j.pld.2021.06.003</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Chen, X.Q., Liu, Z.J., Zhu, G.H., Lang, K.Y., Ji, Z.H., Luo, Y.B., Jin, X.H., Cribb, P.J., Wood, J.J., Gale, S.W., Ormerod, P., Vermeulen, J.J., Wood, H.P., Clayton, D. & Bell, A. (2009) Orchidaceae. </span><span lang="en-GB"><em>In</em></span><span lang="en-GB">: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) </span><span lang="en-GB"><em>Flora of China, </em></span><span lang="en-GB">vol. 25. Science Press, Beijing; Missouri Botanical Garden Press, St. Louis, pp. 492, 497.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Don, D. (1825) </span><span lang="en-GB"><em>Gastrochilus</em></span><span lang="en-GB">.</span><span lang="en-GB"><em> In: </em></span><span lang="en-GB">David, D., Francis, H. & wallich, N. (Eds.) </span><span lang="en-GB"><em>Prodromus florae Nepalensis</em></span><span lang="en-GB">. J. Gale, London, 32 pp.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">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) </span><span lang="en-GB"><em>World Checklist of Orchidaceae</em></span><span lang="en-GB">. The Board of Trustees of the Royal Botanic Gardens, Kew. Available from: http://apps.kew.org/wcsp/monocots/ (accessed 24 March 2022)</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Hsu, T.C., Hsieh, S.I., Wu, J.H. & Hung, H.C. (2018) </span><span lang="en-GB"><em>Gastrochilus deltoglossus</em></span><span lang="en-GB"> (Orchidaceae: Epidendroideae: Vandeae: Aeridinae), a new species from Taiwan.</span><span lang="en-GB"><em> Taiwania</em></span><span lang="en-GB">, 63 (4): 360–365.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Kalyaanamoorthy, S., Minh, B.Q., Wong, T., Haeseler, A. von. & Jermiin, L.S. (2017) ModelFinder: fast model selection for accurate phylogenetic estimates. </span><span lang="en-GB"><em>Nature Methods</em></span><span lang="en-GB">, 14: 587–589. https://doi.org/10.1038/nmeth.4285</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Li, J.W., Ya, J.D., Ye, D.P., Liu, C., Liu, Q., Pan, R., He, Z.X., Cai, J., Lin, D.L. & Jin, X.H. (2021) Taxonomy notes on Vandeae (Orchidaceae) from China: Five new species and two new records. </span><span lang="en-GB"><em>Plant Diversit</em></span><span lang="en-GB"> 43 : 379–389. https://doi.org/10.1016/j.pld.2021.01.009</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Liu, Q. & Gao, J.Y. (2018) </span><span lang="en-GB"><em>Gastrochilus</em></span> <span lang="en-GB"><em>dulongjiangensis</em></span><span lang="en-GB"> (Aeridinae, vandeae, epidendroideae, orchidaceae), a new species from yunnan province, china. </span><span lang="en-GB"><em>Phytotaxa</em></span><span lang="en-GB"> 340: 293–296. http://doi.org/10.11646/phytotaxa.340.3.11</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Liu, Q., Tan, Y.H. & Gao, J.Y. (2016) A new species of </span><span lang="en-GB"><em>Gastrochilus </em></span><span lang="en-GB">(Aeridinae, Vandeae, Orchidaceae) and a new record species from Yunnan, China. </span><span lang="en-GB"><em>Phytotaxa</em></span><span lang="en-GB">,</span> <span lang="en-GB">282: 66–70. https://doi.org/10.11646/phytotaxa.282.1.8</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Liu, Q ., Song, Y., Jin, X.H. & Gao, J.Y. (2019) Phylogenetic relationships of </span><span lang="en-GB"><em>Gastrochilus</em></span><span lang="en-GB"> (Orchidaceae) based on nuclear and plastid DNA data. </span><span lang="en-GB"><em>Botanical Journal of the Linnean Society</em></span><span lang="en-GB">, 189 (3): 228–243. https://doi.org/10.1093/botlinnean/boy084</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Miller, M.A., Pfeiffer, W. & Schwartz, T. (2010) Creating the CIPRES Science Gateway for inference of large phylogenetic trees. </span><span lang="en-GB"><em>In: Gateway Computing Environments Workshop</em></span> <span lang="en-GB"><em>(GCE)</em></span><span lang="en-GB">. pp. 1–8. https://doi.org/10.1109/GCE.2010.5676129</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Minh, B.Q., Schmidt, H.A., Chernomor, O., Schrempf, D., Woodhams, M.D., Haeseler, A. von. & Lanfear, R. (2020) IQ-TREE 2: New models and efficient methods for phylogenetic inference in the genomic era. </span><span lang="en-GB"><em>Molecular Biology and Evolution</em></span><span lang="en-GB">, 37: 1530–1534. https://doi.org/10.1093/molbev/msaa015</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Pridgeon, A., Cribb, P., Chase, M. & Rasmussen, F.N. (2014) </span><span lang="en-GB"><em>Genera orchidacearum, Epidendroideae (part three)</em></span><span lang="en-GB">,</span> <span lang="en-GB">Oxford University Press, Oxford, pp. 188–191.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Tsi, Z.H. (1999) </span><span lang="en-GB"><em>Gastrochilus. In: Flora Reipublicae popularis Sinicae</em></span><span lang="en-GB">. 19. Science Press, Beijing, pp. 399–420.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Tsi, Z.H. (1996) A preliminary revision of </span><span lang="en-GB"><em>Gastrochilus </em></span><span lang="en-GB">(Orchidaceae). </span><span lang="en-GB"><em>Guihaia </em></span><span lang="en-GB">16: 123–154. </span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Yi, S.R., Huang, Y., Xiao, B., Shen, M.L. & Li, J. (2010) </span><span lang="en-GB"><em>Gastrochilus brevifimbriatus </em></span><span lang="en-GB">(Orchidaceae, Aeridinae), a new species from Chongqing, China. </span><span lang="en-GB"><em>Novon </em></span><span lang="en-GB">20: 113–116. https://doi.org/10.3417/2008013 </span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Zhang, D., Gao, F.I., Jakovlić, I., Zou, H., Zhang, J., Li, W.X. & Wang, G.T. (2019) PhyloSuite: An integrated and scalable desktop platform for streamlined molecular sequence data management and evolutionary phylogenetics studies. </span><span lang="en-GB"><em>Molecular Ecology Resources</em></span><span lang="en-GB"> 20 (1): 348–355. https://doi.org/10.1111/1755-0998.13096</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Zhou, Z.H., Shi, R.H., Zhang, Y. & Jin, X.H. (2021) Orchid conservation in China from 2000 to 2020: Achievements and perspectives.</span><span lang="en-GB"><em>Plant Diversity</em></span><span lang="en-GB"> 43 : 343–349. https://doi.org/10.1016/j.pld.2021.06.003</span></span></span></span></p>