Abstract
By mapping populations of Victoria on a river drainage map of South America and conducting morphological comparisons, it is obvious that two additional species warrant recognition: Victoria mattogrossensis in the Pantanal region and Victoria colombiana in the upper Orinoco drainage of Colombia. The latter was first noticed in an Instagram post and can be seen from space. We find that lack of known animal dispersers of the seeds and the sensitivity of the seeds to desiccation results in rivers and their floodwaters being the main means of dispersal for Victoria. The isolation of the river basins since the Pliocene in combination with changing river courses over time has putatively resulted in diversification of the genus. The currently five accepted species differ in morphology and distribution. A key to the species and a nomenclatural overview with full synonymy and typification are provided.
References
- Albert, J.S., Val, P. & Hoorn, C. (2018) The changing course of the Amazon River in the Neogene: center stage for Neotropical diversification. Neotropical Ichthyology 16: e180033. https://doi.org/10.1590/1982-0224-20180033
- Araujo, G.S., Rocha, L.A., Lastrucci, N.S., Luiz, O.J., Di Dario, F. & Floeter, S.R. (2022) The Amazon‐Orinoco Barrier as a driver of reef‐fish speciation in the Western Atlantic through time. Journal of Biogeography 49: 1407–1419. https://doi.org/10.1111/jbi.14398
- Borsch, T., Löhne, C. & Wiersema, J. (2008) Phylogeny and evolutionary patterns in Nymphaeales: integrating genes, genomes and morphology. Taxon 57: 1052–1081. https://doi.org/10.1002/tax.574004
- Cañizales, I. (2020) Morphology of the skull of Inia geoffrensis humboldtiana Pilleri & Gihr, 1977 (Cetacea: Iniidae): a morphometric and taxonomic analysis. Graellsia 76: e115. https://doi.org/10.3989/graellsia.2020.v76.253
- Cheng, L., Han, Q., Chen, F., Li, M., Balbuena, T.S. & Zhao, Y. (2022) Phylogenomics as an effective approach to untangle cross-species hybridization event: a case study in the family Nymphaeaceae. Frontiers in Genetics 13: 1031705. https://doi.org/10.3389/fgene.2022.1031705
- Christenhusz, M.J.M. (2025) Liefde in de plantenwereld, een botanische kijk op de evolutie van seks. Sterck & De Vreese, Gorredijk.
- Cobra Collective (2020) Eco-hydrological assessment of the North Rupununi wetlands. Monitoring and assessment. Available from: https://cobracollective.org/wp-content/uploads/2021/07/WWF_Cobra-Collective-Report_May2020_Final.pdf (accessed 3 August 2025)
- Hamilton, H., Caballero, S., Collins, A.G. & Brownell Jr, R.L. (2001) Evolution of river dolphins. Proceedings of the Royal Society of London. Series B: Biological Sciences 268: 549–556. https://doi.org/10.1098/rspb.2000.1385
- Hubert, N. & Renno, J.F. (2006) Historical biogeography of South American freshwater fishes. Journal of Biogeography 33: 1414–1436. https://doi.org/10.1111/j.1365-2699.2006.01518.x
- IWWGS (2025) International Waterlily and Water Gardening Society. Water Garden Journal 40 (4): 7.
- Jaramillo, C., Romero, I., D’Apolito, C., Bayona, G., Duarte, E., Louwye, S., Escobar, J., Luque, J., Carrillo-Briceño, J.D., Zapata, V. & Mora, A. (2017) Miocene flooding events of western Amazonia. Science Advances 3: e1601693. https://doi.org/10.1126/sciadv.1601693
- Klotzsch, F. (1847) [without title]. Botanische Zeitung 5: 244–245.
- Lima, C.T. de, Machado, I.C. & Giulietti, A.M. (2021) Nymphaeaceae do Brasil. Sitientibus série Ciências Biológicas 21. https://doi.org/10.13102/scb4986
- Lindley, J. (1837) Victoria regia. Published by the author, London.
- Linnaeus, C. (1753) Species plantarum. Salvius, Stockholm.
- Longwood Gardens (2025) Longwood Cultivars. Available from: https://longwoodgardens.org/gardens/our-plants/longwood-cultivars (accessed 20 July 2025)
- Magdalena, C. (2017) The plant messiah: adventures in search of the world’s rarest species. Viking, London.
- Magdalena, C., Smith, L., Koch, A.K., Duarte, T. & Martel, M. (in review) Victoria mattogrossensis: a new combination for a long-known species from the Pantanal, the world’s largest wetland. PhytoKeys.
- Malme, G.O.A. (1907) Några anteckningar om Victoria Lindl., särskildt om Victoria cruziana d’Orb. Acta Horti Bergiani 4: 1–14.
- Mora, A., Baby, P., Roddaz, M., Parra, M., Brusset, S., Hermoza, W. & Espurt, N. (2010) Tectonic history of the Andes and sub-Andean zones: implications for the development of the Amazon drainage basin. In: Hoorn, C. & Wesselingh, F.P. (Eds.) Amazonia, landscape and species evolution: a look into the past. Blackwell, London, pp. 38–60. https://doi.org/10.1002/9781444306408.ch4
- Nowak, M.S., Harder, B., Meckoni, S.N., Friedhoff, R., Wolff, K. & Pucker, B. (2024) Genome sequence and RNA-seq analysis reveal genetic basis of flower coloration in the giant water lily Victoria cruziana. bioRxiv. https://doi.org/10.1101/2024.06.15.599162
- d’Orbigny, A. (1840) Note sur les espèces de genre Victoria. Annales des Sciences Naturelles, Botanique sér. 2 13: 53–57.
- Polar Geospatial Center (2026) Vantor satellite constellation specifications. University of Minnesota. Available from: https://www.pgc.umn.edu/guides/commercial-imagery/vantor-satellite-constellation/ (accessed 6 January 2026)
- Pöppig, E.F. (1832) Doctor Pöppig’s naturhistorische Reiseberichte. Notizen aus dem Gebiete der Natur- und Heilkunde 35: 129–135.
- Ramírez-Gil, H. & Ajiaco-Martínez, R. (2001) La pesca en la baja Orinoquia colombiana: una visión integral. Ministerio de Agricultura y Desarrollo Rural-Programa Nacional de Transferencia de Tecnología Agropecuaria-COLCIENCIAS-INPA, Bogotá.
- Riedl, H. (1981) Families destroyed in World War II at the Vienna Herbarium (W). Taxon 30: 727–728.
- Roestel, J.A., Wiersema, J.H., Jansen, R.K., Borsch, T. & Gruenstaeudl, M. (2024) On the importance of sequence alignment inspections in plastid phylogenomics–an example from revisiting the relationships of the waterlilies. Cladistics 40: 469–495. https://doi.org/10.1111/cla.12584
- Rojas Acosta, N. (1897) Historia natural de Corrientes, catálogo. Imprenta El Hogar y la Escuela, Buenos Aires.
- Salisbury, R.A. (1805) Description of the natural order of Nymphaeales. Annals of Botany 2: 69–76.
- Schomburgk, R.H. (1837) Botanical Society. Athenaeum: Journal of Literature, Science and the Fine Arts 1837: 661.
- Smith, L.T., Magdalena, C., Przelomska, N.A., Pérez-Escobar, O.A., Melgar-Gómez, D.G., Beck, S., Negrão, R., Mian, S., Leitch, I.J., Dodsworth, S., Maurin, O., Ribero-Guardia, G., Salazar, C.D., Gutierrez-Sibauty, G., Antonelli, A. & Monro, A.K. (2022) Revised species delimitation in the giant water lily genus Victoria (Nymphaeaceae) confirms a new species and has implications for its conservation. Frontiers in Plant Science 13: 883151. https://doi.org/10.3389/fpls.2022.883151
- Salazar, C.D., Gutierrez-Sibauty, G., Antonelli, A. & Monro, A.K. (2022) Revised species delimitation in the giant water lily genus Victoria (Nymphaeaceae) confirms a new species and has implications for its conservation. Frontiers in Plant Science 13: 883151. https://doi.org/10.3389/fpls.2022.8831
- Wen, X., Liang, Y., Shan, H., Chang, X., Song, X., Shen, S., Fu, Y., Chen, D., Chen, F., Li, Y. & Guan, Q. (2025) The genome of giant waterlily provides insights into the origin of angiosperms, leaf gigantism, and stamen function innovation. Plant Communications 6: 101342. https://doi.org/10.1016/j.xplc.2025.101342
- Wiersema, J.H. (1984) A new species of Nymphaea (Nymphaeaceae) from the Amazon Basin. Sida 10: 195–198.
- Zhang, L., Chen, F., Zhang, X., Li, Z., Zhao, Y., Lohaus, R., Chang, X., Dong, W., Ho, S.Y.W., Liu, X., Song, A., Chen, J., Guo, W., Wang, Z., Zhuang, Y., Wang, H., Chen, X., Hu, J., Liu, Y., Qin, Y., Wang, K., Dong, S., Liu, Y., Zhang, S., Yu, X., Wu, Q., Wang, L., Yan, X., Jiao, Y., Kong, H., Zhou, X., Yu, C., Chen, Y., Li, F., Wang, J., Chen, W., Chen, X., Jia, Q., Zhang, C., Jiang, Y., Zhang, W., Liu, G., Fu, J., Chen, F., Ma, H., Van de Peer, Y. & Tang, H. (2020) The water lily genome and the early evolution of flowering plants. Nature 577: 79–84. https://doi.org/10.1038/s41586-019-1852-5