Abstract
We describe a new species of Miliusa from Vietnam that is like M. balansae and M. sinensis but differs in several characters. Molecular phylogenetic analyses show that it is distinct from the other Miliusa species, corroborating its recognition as a distinct species. Additionally, ten species of Miliusa from Vietnam have been confirmed, and a dichotomous key for these is provided.
References
- Arya, S. & Kumar, V.N.S.A. (2022) Miliusa agasthyamalana (Annonaceae), a new species from southern Western Ghats, India. Phytotaxa 552: 252–258. https://doi.org/10.11646/phytotaxa.552.4.2
- Ast, S. (1938) Annonaceae. In: Lecomte, H. (Ed.) Flore générale de l’Indo-Chine 1 (suppl.). Muséum National d’Histoire Naturelle, Paris, pp. 59–123.
- Balachandran, N. & Chakrabarty, T. (2010) A new species of Miliusa lesch ex A. DC. (Annonaceae) from South Andaman Island. Journal of Economic and Taxonomic Botany 34: 801–802.
- Bân, N.T. (2000) Annonaceae Juss. In: Vũ, X.P. (Ed.) Flora of Vietnam, vol. 1. Science & Technics Publishing House, Hanoi, pp. 305–315.
- de Candolle, A.L.P.P. (1832) Mémoire sur la famille des Anonacées, et en particulier sur les espèces du pays des Birmans. Mémoires de la Société de Physique et d’Histoire Naturelle de Genève 5: 177–221.
- Chaowasku, T. (2013) Miliusa codonantha (Annonaceae), a new species from the Indian eastern Himalaya, with a new combination, M. dioeca. Willdenowia 43: 101–105. https://doi.org/10.3372/wi.43.43111
- Chaowasku, T. (2014) Miliusa pumila (Annonaceae), a new species from S Thailand. Willdenowia 44: 407–413. https://doi.org/10.3372/wi.44.44311
- Chaowasku, T. & Kessler, P.J.A. (2006) Miliusa lanceolata (Annonaceae), a new species from Papua New Guinea. Blumea 51: 553–557. https://doi.org/10.3767/000651906X622102
- Chaowasku, T. & Kessler, P.J.A. (2013a) Phylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia. European Journal of Taxonomy 54: 1–21. https://doi.org/10.5852/ejt.2013.54
- Chaowasku, T. & Kessler, P.J.A. (2013b) Seven new species of Miliusa (Annonaceae) from Thailand. Nordic Journal of Botany 31: 680–699. https://doi.org/10.1111/j.1756-1051.2012.01785.x
- Chaowasku, T. & Kessler, P.J.A. (2014) Miliusa cambodgensis sp. nov. (Annonaceae) from Cambodia and M. astiana, M. ninhbinhensis spp. nov. from Vietnam. Nordic Journal of Botany 32: 298–307. https://doi.org/10.1111/j.1756-1051.2013.00219.x
- Damthongdee, A. & Chaowasku, T. (2018) Miliusa chantaburiana (Annonaceae), a new species from SE Thailand. Willdenowia 48: 293–301. https://doi.org/10.3372/wi.48.48208
- Damthongdee, A., Sinbumroong, A., Rueangruea, S., Kaitongsuk, S., Ue-Aree, P., Jongsook, H. & Chaowasku, T. (2022) Miliusa microphylla (Annonaceae), a new species from Thailand as evidenced by morphology and plastid phylogeny, with M. glandulifera, a new record for Thailand. Phytotaxa 532: 259–274. https://doi.org/10.11646/phytotaxa.532.3.4
- Damthongdee, A., Sinbumroong, A., Rungrueng, A., Aongyong, K., Wiya, C., Saengpho, C. & Chaowasku, T. (2023) Miliusa majestatis (Annonaceae), a new species from southern Thailand as evidenced by molecular phylogeny and morphology. Annales Botanici Fennici 60: 151–160. https://doi.org/10.5735/085.060.0124
- Finet, A.E. & Gagnepain, F. (1906) In: Société botanique de France & Centre national de la recherche scientifique (France) (Eds.) Bulletin de la Société botanique de France, vol. 53. Mémoires 4 (2). Paris, pp. 148–153. https://doi.org/10.1080/00378941.1905.10833364
- Hooker, J.D. & Thomson, T. (1855) Flora Indica: being a systematic account of the plants of British India, vol. 1. Pamplin, London, 151 pp.
- Kalyaanamoorthy, S., Minh, B.Q., Wong, T.K.F., von Haeseler, A. & Jermiin, L.S. (2017) ModelFinder: fast model selection for accurate phylogenetic estimates. Nature Methods 14: 587–589. https://doi.org/10.1038/nmeth.4285
- Katoh, K. & Standley, D.M. (2013) MAFFT multiple sequence alignment software version 7: improvements in performance and usability. Molecular Biology and Evolution 30: 772–780. https://doi.org/10.1093/molbev/mst010
- Li, P.T. & Gilbert, M.G. (2011) Annonaceae. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 672–713.
- Liu, Y., Ye, W., Li, Y., Xiao, B. & Hou, X. (2025) Artabotrys rubriflorus (Annonaceae), a new species from Yunnan, China. Nordic Journal of Botany 2025: e04680. https://doi.org/10.1111/njb.04680
- Mols, J.B. & Kessler, P.J.A. (2003) The genus Miliusa (Annonaceae) in the Austro-Malesian area. Blumea 48: 421–462. https://doi.org/10.3767/000651903X489384
- Mols, J.B., Gravendeel, B., Chatrou, L.W., Pirie, M.D., Bygrave, P.C., Chase, M.W. & Kessler, P.J.A. (2004) Identifying clades in Asian Annonaceae: monophyletic genera in the polyphyletic Miliuseae. American Journal of Botany 91: 590–600. https://doi.org/10.3732/ajb.91.4.590
- Mols, J.B. & Kessler, P.J.A. (2004) The genus Miliusa in the Austro-Malesian area (Annonaceae), a rectification. Blumea 49: 350–350. https://doi.org/10.3767/000651904X484306
- Murugan, C., Manickam, V.S., Sundaresan, V. & Jothi, G.J. (2004) Miliusa tirunelvelica, a new species of Annonaceae from the Kalakkad-Mundanthurai Tiger Reserve, Western Ghats, India. Novon 14: 102–104. [https://www.jstor.org/stable/3393443]
- Narayanan, M.K.R., Sujanapal, P., Kumar, N.A., Sasidharan, N. & Sivadasan, M. (2010) Miliusa wayanadica (Annonaceae), a new species from Western Ghats, India. Journal of the Botanical Research Institute of Texas 4: 63–67. [https://www.jstor.org/stable/41971970]
- Narayanan, M.K.R., Sujanapal, P., Kumar, N.A., Sivadasan, M., Alfarhan, A.H. & Thomas, J. (2012) Miliusa gokhalaei, a new species of Annonaceae from India with notes on interrelationships, population structure and conservation status. Phytotaxa 42: 26–34. https://doi.org/10.11646/phytotaxa.42.1.4
- Nge, F.J., Chaowasku, T., Damthongdee, A., Wiya, C., Soule, V.R.C., Rodrigues-Vaz, C., Bruy, D., Mariac, C., Chatrou, L.W., Chen, J., Choo, L.M., Dagallier, L.-P.M.J., Erkens, R.H.J., Johnson, D.M., Leeratiwong, C., Lobao, A.Q., Lopes, J.C., Martinez-Velarde, M.F., Munzinger, J., Murray, N.A., Neo, W.L., Rakotoarinivo, M., Ortiz-Rodriguez, A.E., Sonke, B., Thomas, D.C. & Couvreur, T.L.P. (2024) Complete genus-level phylogenomics and new subtribal classification of the pantropical plant family Annonaceae. Taxon 73: 1341–1369. https://doi.org/10.1002/tax.13260
- Nguyen, L.T., Schmidt, H.A., von Haeseler, A. & Minh, B.Q. (2015) IQ-TREE: a fast and effective stochastic algorithm for estimating maximum-likelihood phylogenies. Molecular Biology and Evolution 32: 268–274. https://doi.org/10.1093/molbev/msu300
- Page, N.V. & Nerlekar, A.N. (2016) A new species of Miliusa (Annonaceae) from the Western Ghats of Karnataka, India. Phytotaxa 245: 79–83. https://doi.org/10.11646/phytotaxa.245.1.10
- Page, N.V., Poti, M. & Ravikumar, K. (2016) Miliusa flaviviridis (Annonaceae), a new species from the southern Western Ghats, India. Phytotaxa 255: 167–171. https://doi.org/10.11646/phytotaxa.255.2.6
- Pierre, L. (1881) Flore forestière de la Cochinchine. O. Doin, Paris, 3: t. 40. https://doi.org/10.5962/bhl.title.61558
- Pierre, L. & Octave, D. (1880) Flore forestière de la Cochinchine, vol. 1. Doin, Paris, pl. 38–42. [https://www.biodiversitylibrary.org/item/125096]
- Rajkumar, G., Alister, M., Nazarudeen, A. & Pandurangan, A.G. (2016) Miliusa sahyadrica, a new species of Annonaceae from the Western Ghats, India. Phytotaxa 284: 211–217. https://doi.org/10.11646/phytotaxa.284.3.6
- 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
- Shi, Z. & Hou, X. (2024) Miliusa longicarpa (Annonaceae): a new species from Yunnan, China. Phytotaxa 666: 209–215. https://doi.org/10.11646/phytotaxa.666.3.4
- Wen, F., Xin, Z., Hong, X., Cai, L., Chen, X., Liang, J., Wang, H., Maciejewski, S., Wei, Y. & Fu, L. (2022) Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China. PhytoKeys 193: 89–106. https://doi.org/10.3897/phytokeys.193.80715
- Zhang, D., Gao, F., Jakovlić, I., Zou, H., Zhang, J., Li, W.X. & Wang, G.T. (2020) PhyloSuite: an integrated and scalable desktop platform for streamlined molecular sequence data management and evolutionary phylogenetic studies. Molecular Ecology Resources 20: 348–355. https://doi.org/10.1111/1755-0998.13096
