Abstract
Dendrobium tetrapterum, a cryptic species in the D. lindleyi alliance, is described and illustrated. Detailed morphological comparisons indicate that it is similar to D. lindleyi and D. jenkinsii but can be distinguished by four morphological characters, namely petals without (vs. with) claw, slit (vs. entire) transverse septum at lip base, anther cap with (vs. without) indentation on each side and a rhombic (vs. pentagonal–octagonal or oblong) pseudobulb cross-section. Combined with the geographical distribution and whole plastid genome data, we confirm that D. tetrapterum is not a natural hybrid of the other two species, but a separate species.
References
- Barretto, G., Cribb, P.J. & Gale, S.W. (2012) The wild orchids of Hong Kong. Natural History Publications Borneo, Sabah, 697 pp.
- Bickford, D.P., Lohman, D.J., Sodhi, N.S., Ng, P.K., Meier, R., Winker, K., Ingram, K.K. & Das, I. (2007) Cryptic species as a window on diversity and conservation. Trends in Ecology & Evolution 22: 148–155. https://doi.org/10.1016/j.tree.2006.11.004
- Calahorra-Oliart, A., Ospina-Garcés, S.M. & León‐Paniagua, L. (2021) Cryptic species in Glossophaga soricina (Chiroptera: Phyllostomidae): do morphological data support molecular evidence? Journal of Mammalogy 102: 54–68. https://doi.org/10.1093/jmammal/gyaa116
- Cardini, A. & Sarah, E. (2008) Does the skull carry a phylogenetic signal? Evolution and modularity in the guenons. Biological Journal of the Linnean Society 93: 813–834. https://doi.org/10.1111/j.1095-8312.2008.01011.x
- Chase, M.W., Cameron, K.M., Freudenstein, J.V., Pridgeon, A.M., Salazar, G.A., Berg, C.V. & Schuiteman, A. (2015) An updated classification of Orchidaceae. Botanical Journal of the Linnean Society 177: 151–174. https://doi.org/10.1111/boj.12234
- Chen, S.Q. & Tsi, Z.H. (1997) The orchids of China. China Forestry Publishing House, Beijing, 168 pp.
- Friedman, J. (2020) The evolution of annual and perennial plant life histories: ecological correlates and genetic mechanisms. Annual Review of Ecology, Evolution, and Systematics 51: 461–481. https://doi.org/10.1146/annurev-ecolsys-110218-024638
- Fu, L.G. (2002) Higher plants of China, volume 13-Sparganiaceae. Science Press, Beijing, N.° 1589.
- Gu, Y.F., Shu, J.P., Lu, Y.J., Shen, H., Shao, W., Zhou, Y., Sun, Q.M., Chen, J.B., Liu, B.D. & Yan, Y.H. (2022) Insights into cryptic speciation of quillworts in China. Plant Diversity 45: 284–301. https://doi.org/10.1016/j.pld.2022.11.003
- Hooker, W.J. (1839) Dendrobium aggregatum. Curtis’s Botanical Magazine 65: 3643.
- Hu, S.Y. (1973) The Orchidaceae of China. Quarterly Journal of the Taiwan Museum 26: 131–165.
- Kunth, K.S. (1816) Nova genera et species plantarum, vol. 1. Librariae Graeco-Latino-Germanico, Paris, 432 pp. https://doi.org/10.5962/bhl.title.640
- Kuntze, C.E.O. (1891) Revisio generum plantarum, vol. 2. Filex, Leipzig, 983 pp. https://doi.org/10.5962/bhl.title.327
- Li, M.H., Liu, D.K., Zhang, G.Q., Deng, H., Tu, X.D., Wang, Y., Lan, S.R. & Liu, Z.J. (2019) A perspective on crassulacean acid metabolism photosynthesis evolution of orchids on different continents: Dendrobium as a case study. Journal of Experimental Botany 70: 6611–6619. https://doi.org/10.1093/jxb/erz461
- Lindley, J. (1832) Genera and species of orchidaceous plants. Ridgways, London, 554 pp.
- Lindley, J. (1835) Dendrobium aggregatum. Edwards’s Botanical Register 20: 1695.
- Liu, D.K, Tu, X.D., Zhao, Z., Zeng, M.Y. Zhang, S., Ma, L., Zhang, G.Q., Wang, M.M., Liu, Z.J., Lan, S.R., Li, M.H. & Chen, S.P. (2020) Plastid phylogenomic data yield new and robust insights into the phylogeny of Cleisostoma–Gastrochilus clades (Orchidaceae, Aeridinae). Molecular Phylogenetics and Evolution 145: 106729. https://doi.org/10.1016/j.ympev.2019.106729
- Loureiro, João de. (1790) Flora cochinchinensis: sistens plantas in regno Cochinchina nascentes. vol. 2. Academicis, Lisbon, 744 pp. https://doi.org/10.5962/bhl.title.40199
- Miller, M.A., Pfeiffer, W. & Schwartz, T. (2010) Creating the CIPRES Science Gateway for inference of large phylogenetic trees. 2010 Gateway Computing Environments Workshop (GCE), New Orleans, LA, USA, 1–8. https://10.1109/GCE.2010.5676129
- Pansarin, E.R. & Ferreira, A.W. (2019) Elucidating cryptic sympatric speciation in terrestrial orchids. bioRxiv. https://doi.org/10.1101/828491
- Paxton, J. (1848) Dendrobium farmerii. Paxton’s Magazine of Botany, and Register of Flowering Plants 15: 241–242.
- Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Rasmussen, F.N. (eds.) (2014) Genera orchidacearum, vol. 6: Epidendroideae. Oxford University Press, Oxford, 608 pp.
- Reichenbach, H.G. (1861) Dendrobium linawianum. Annales Botanices Systematicae 6: 284. https://doi.org/10.5962/bhl.title.7556
- Reichenbach, H.G. (1867) New plants. Gardeners’ Chronicle 1867: 1997.
- Rolfe, R.A. (1932) Dendrobium aggregatum. Orchid Review 40: 206–207.
- Ronquist, F., Teslenko, M., Van Der Mark, P., Ayres, D.L., Darling, A., Höhna, S., Larget, B., Liu, L., Suchard, M.A. & Huelsenbeck, J.P. (2012) MrBayes 3.2: Efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology 61: 539–542. https://doi.org/10.1093/sysbio/sys029
- Roxburgh, W. (1832) Flora indica, or, descriptions of Indian plants, vol. 3. Thacker. Calcutta, and Parbury, Allen and Co, London, 875 pp.
- Schlechter, R. (1912) Die Orchidaceen von Deutsch–Neu–Guinea. Repertorium Specierum Novarum Regni Vegetabilis, Beihefte 1: 401–560.
- Shneyer, V.S. & Kotseruba, V.V. (2015) Cryptic species in plants and their detection by genetic differentiation between populations. Russian Journal of Genetics: Applied Research 5: 528–541. https://doi.org/10.1134/S2079059715050111
- Stamatakis, A., Hoover, P. & Rougemont, J. (2008) A rapid bootstrap algorithm for the RAxML Web servers. Systematic Biology 57: 758–771. https://doi.org/10.1080/10635150802429642
- Steudel, E.G. (1840) Nomenclator Botanicus, seu, synonymia plantarum universalis, vol. 1. Cottae, Stuttgart & Tubingan, 852 pp. https://doi.org/10.5962/bhl.title.655
- Surveswaran, S., Gowda, V. & Sun, M. (2018) Using an integrated approach to identify cryptic species, divergence patterns and hybrid species in Asian ladies’ tresses orchids (Spiranthes, Orchidaceae). Molecular Phylogenetics and Evolution 124: 106–121. https://doi.org/10.1016/j.ympev.2018.02.025
- Swartz, O. (1799) Dendrobium. Nova Acta Regiae Societatis Scientiarum Upsaliensis 6: 82–85.
- Swofford, D.L. (2002) Phylogenetic analysis using parsimony (* and other methods). Sinauer, Sunderland.
- Tsi, Z.H. (1999) Dendrobium. In: Wu, Z.Y. (Eds.) Flora Reipublicae Popularis Sinicae, vol.19. Science Press, Beijing, pp. 67–146.
- Wallich, N. (1830) Plantae Asiaticae rariores, vol. 1. Treuttel and Würtz, London, 84 pp. https://doi.org/10.5962/bhl.title.468
- Wallich, N. (1832) A numerical List of dried specimens of plants in the East India Company’s Museum. London, N.° 7411A.
- Wei, Z.Y., Xia, Z.Q., Shu, J.P., Shang, H., Maxwell, S.J., Chen, L.J., Zhou, X.L., Xi, W., Adjie, B.Y., Yuan, Q., Cao, J.G. & Yan, Y.H. (2021) Phylogeny and taxonomy on cryptic species of forked ferns of Asia. Frontiers in Plant Science 12: 748562. http://doi.org/10.3389/fpls.2021.748562
- Williams, B.S. (1871) The orchid-grower’s manual. Victoria and Paradise Nurseries, London, 300 pp. https://doi.org/10.5962/bhl.title.15512
- Winker, K. (2005) Sibling species were first recognized by William Derham (1718). Auk 122: 706–707. https://doi.org/10.1642/0004-8038(2005)122[0706:SSWFRB]2.0.CO;2
- Wu, Z.Y., Raven, P.H. & Hong, D.Y. (eds.) (2009) Flora of China. Scientific Press, Beijing & Missouri Botanical Garden Press, St. Louis, 506 pp.
- Xiang, X.G., Schuiteman, A., Li, D.Z., Huang, W.C., Chung, S.W., Li, J.W., Zhou, H.L., Jin, W.T., Lai, Y.J., Li, Z.Y. & Jin, X.H. (2013) Molecular systematics of Dendrobium (Orchidaceae, Dendrobieae) from mainland Asia based on plastid and nuclear sequences. Molecular Phylogenetics and Evolution 69: 950–960. https://doi.org/10.1016/j.ympev.2013.06.009
- Xu, Q., Zhang, G.Q., Liu, Z.J. & Luo, Y.B. (2014) Two new species of Dendrobium (Orchidaceae: Epidendroideae) from China: evidence from morphology and DNA. Phytotaxa 174: 129–143. http://dx.doi.org/10.11646/phytotaxa.174.3.1
- Xu, S.W., Gao, X.Y., Zeng, M.Y., Zhou, C.Y., Liu, Z.J. & Li, M.H. (2023) Phylogenetics of two rhizomatous epiphytic species of Cymbidium (Orchidaceae; Cymbidieae): evidence from analyses of nuclear and plastid DNA. Phytotaxa 598: 97–104. https://doi.org/10.11646/phytotaxa.598.1.8
- Zheng, B.Q., Zhu, S.L., Li, K., Miao, K. & Wang, Y. (2018) Analysis on breeding value of native Dendrobium species in China (in Chinese). Journal of Beijing Forestry University 40: 102–108. https://doi.org/10.13332/j.1000-1522.20170341
- Zhu, G.H., Ji, Z.H., Wood, J.J. & Wood, H.P. (2009) Dendrobium. In: Wu, C.Y., Raven, P.H., Hong, D.Y. (Eds.) Flora of China. Scientific Press, Beijing, pp. 367–397.