Abstract
Ranunculus oblitus, a new species of Ranunculus section Batrachium, is described from South America. The species is significantly different from the European laminar-leaved species R. aquatilis, and the Holarctic submerged species R. trichophyllus. It resembles the North Asian-North American species R. mongolicus differing by narrower petals, larger and fewer achenes. Available molecular data indicate affiliation to North American taxa of the R. trichophyllus group, especially R. porteri. The species occurs along the west coast of the continent from southern Peru to southern Chile, extending from sea level to an elevation of 4500 m a.s.l. in the Andes. There is some evidence that a second native Batrachium species occurs in South America.
References
Bobrov, A.A., Zalewska-Ga?osz, J., Jopek, M. & Movergoz, E.A. (2015) Ranunculus schmalhausenii (section Batrachium, Ranunculaceae), a neglected water crowfoot endemic to Fennoscandia – a case of rapid hybrid speciation in postglacial environment in North Europe. Phytotaxa 233 (2): 101?138. https://doi.org/10.11646/phytotaxa.233.2.1
Britton, N.L. (1890) New and noteworthy North American phanerogams. III. Bulletin of the Torrey Botanical Club 17: 310–316.
Candolle, de, A.P. (1818) [1817] Regni vegetabilis systema naturale, sive ordines, genera et species plantarum secundum methodi naturalis normas digestarum et descriptarum. Vol. 1. Sumptibus sociorum Treuttel et Würtz, Parisiis etc. 564 pp.
Cook, C.D.K. (1966) A monographic study of Ranunculus subgenus Batrachium (DC.) A. Gray. Mitteilungen der Botanischen Staatssammlung München 6: 47?237.
Drew, W.B. (1936) Contributions from the Gray Herbarium of Harvard University – No. CX. The North American representatives of Ranunculus, § Batrachium. Rhodora 38 (445): 1–47. https://www.jstor.org/stable/23303399
EAAFP (East Asian-Australasian Flyway Partnership) (2021) What is a flyway? https://www.eaaflyway.net/the-flyway/ (accessed 27 Apr 2021)
Emadzade, K., Gehrke, B., Linder, H.P. & Hörandl, E. (2011) The biogeographical history of the cosmopolitan genus Ranunculus L. (Ranunculaceae) in the temperate to meridional zones. Molecular Phylogenetics and Evolution 58 (1): 4–21. https://doi.org/10.1016/j.ympev.2010.11.002
Flora de la Argentina (2018) Ranunculus trichophyllus Chaix. Available from: http://www.floraargentina.edi.ar/detalleespecie.asp? (accessed 8 October 2019)
Godron, D.A. (1840) Essai sur les renoncules a fruits ridés transversalement. Mémoires de la Société royale des sciences, lettres et arts de Nancy 1839: 8–41.
Gray, A. (1886) XXIV. Contributions to American botany. 1. A revision of the North American Ranunculi. Proceedings of the American Academy of Arts and Sciences 21: 363–378.
Hiern, W.P. (1871) On the forms and distribution over the world of the Batrachium section of Ranunculus Journal of Botany, British and foreign 9: 65–69.
INTA (Instituto Nacional de Tecnologia Agropecuaria) (2021) Herbario digital. Ranunculus trichophyllus Chaix. Available from: http://herbariodigital.inta.gob.ar/especie.php?codigo=RATR (accessed 4 April 2021)
Jopek, M. & Zalewska-Ga?osz, J. (2020) Phylogenetic relations of selected taxa of Ranunculus sect. Batrachium. In: Proceedings of IX International scientific conference on aquatic macrophytes “Hydrobotany 2020” (Borok, Russia, 17–21 October, 2020). pp. 190–192. [https://ibiw.ru/download/4221187.PDF]
Jussieu, de, A.L. (1789) Genera plantarum: secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratum, anno M.DCC.LXXIV. V. Herissant et T. Barrois, Parisiis. 498 pp.
Krylov, P.N. (1931) Flora Zapadnoi Sibiri. Vyp. 5. Aizoaceae–Berberidaceae [Flora of West Siberia. T. 5. Aizoaceae–Berberidaceae]. Tomskoe otdelenie RBO, Tomsk. pp. 979–1227 + xii. [in Russian]
Linnaeus, C. (1753) Species plantarum: exhibentes plantas rite cognitas ad genera relatas. Vol. 1. L. Salvii, Holmiae. 574 pp.
Lourteig, A. (1951) Ranunculáceas de Sudamérica templada. Darwiniana 9 (3?4): 397?608. [https://www.jstor.org/stable/23211739]
Lourteig, A. (1984) Ranunculaceae. In: Correa, M.N. (ed.) Flora Patagónica, Colección Científica del Instituto Nacional de Tecnología Agropecuaria, Buenos Aires 8 (4a): 284?322.
Luferov, A.N. (1997) K taksonomii lyutikov iz podroda Batrachium (DC.) Peterm. [On taxonomy of buttercups of subgenus Batrachium (DC.) Peterm.]. Byulleten’ Glavnogo Botanicheskogo Sada [Bulletin of Main Botanical Garden] 175: 56–58. [in Russian]
Lumbreras, A., Molina, J.A., Benavent, A., Marticorena, A. & Pardo, C. (2014) Disentangling the taxonomy and ecology of South American Ranunculus subgen. Batrachium. Aquatic Botany 114: 21?28. https://doi.org/10.1016/j.aquabot.2013.12.004
McBride, J.F. (1937) 5. Ranunculus. In: Flora of Peru. Part 2. no. 2. Field Museum of Natural History. Botanical Series 13: 257?661. [https://www.biodiversitylibrary.org/item/19766#page/9/mode/1up]
Nakai, T. (1928) Notulae ad plantas Japoniae et Koreae. XXXV. Botanical Magazine 42: 1–26.
Peru Checklist (2021) Ranunculus aquatilis L. Available from: http://tropicos.org/Name/27101420?projectid=5 (accessed 8 October 2019)
Pran?l, J., Koutecký, P., Trávní?ek, P., Jarolímová, V., Lu?anová, M., Koutecká, M. & Kaplan, Z. (2018) Cytotype, variation, cryptic diversity and hybridization in Ranunculus sect. Batrachium revealed by flow cytometry and chromosome number. Preslia 90 (3): 195–223. https://doi.org/10.23855/preslia.2018.195
Raynal-Roques, A. (1992) VI.2a. The higher plants. In: Dejoux, C., Iltis, A. (ed.) Lake Titicaca, a synthesis of limnological knowledge, Kluwer, Dordrecht, pp. 223?231. [https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-08/37968.pdf]
Reiche, K. (1894) Estudios críticos sobre la flora de Chile. Anales de la Universidad de Chile 88 (1894): 55?100. https://doi.org/10.5354/0717-8883.2012.21710
Ruiz, E. (2001) Ranunculaceae. In: Marticorena, C., Rodriguez, R. (ed.) Flora of Chile. Vol. 2 (1). Winteraceae–Ranunculaceae, Ed. Univ. de Conceptión, Conceptión, pp. 40?80.
San Martín, C., Pérez, Y., Montenegro, D. & Alvarez, M. (2011) Diversidad, hábitat, y hábitat de macrophytos acuáticos en la Patagonia occidental (Región de Aisén, Chile). Anales Instituto Patagonia (Chile) 39 (1): 23?41. https://doi.org/10.4067/S0718-686X2011000100002
Schrank, von, F.P. (1789) Baiersche Flora. Bd. 2. J.B. Strohl, München, 703 pp.
Sergievskaja, L.P. (1964) P.N. Krylov Flora Zapadnoi Sibiri. Vyp. 12 (doplnitel’nyi). Ch. 2 [P.N. Krylov Flora of West Siberia. T. 12 (additional). Pt. 2]. Izdatel’stvo Tomskogo universiteta, Tomsk. pp. 3255–3550 + l. [in Russian]
Spegazzini, C. (1896) Plantas per fuegiam a Caroli Spegazzini anno 1882 collectae. Anales del Museo Nacional de Historia Natural de Buenos Aires 5: 39?104.
Teillier, S. (2021) Clave de la identicifación de las especies de Ranunculus in Chile. In: Chloris chilensis. Revista chilena de Flora y vegetación. 4 pp. (accessed 28 March 2021)
Telford, A., O’Hare, M., Cravers, S. & Holmes, N. (2011) Can genetic barcoding be used to identify aquatic Ranunculus L. subgenus Batrachium (DC.) A. Gray? A test using some species from the British Isles. Aquatic Botany 95 (1): 65–70. https://doi.org/10.1016/j.aquabot.2011.03.004
Urrutia Contreras, N.C. (2016) Biodiversidad florística y vegetaticonal del humedal costero Putú, Región del Maule, Chile. Trabajo de titulación, Univ. Austral de Chile, Valdivia, Nathalie, 89 pp. [http://cybertesis.uach.cl/tesis/uach/2016/fifu.81b/doc/fifu.81b.pdf]
Urrutia Estrada, J., Sanchez Gonzales, P., Pauchard Cortés, A. & Hauenstein Barra, E. (2017) Flora acuática y palustre introducida en Chile. Universidad de Concepción, Conception, 92 pp. [http://www.lib.udec.cl/wp-content/uploads/2017/11/Flora-acuatica.pdf]
Van den Brink, M. (2021) Marijn van den Brink‘s photos. Argentina, South Patagonia. Available from: https://photos.v-d-brink.eu/Flora-and-Fauna/South-America/Argentina-South-Patagonia/i-vdwvsDJ (accessed 3 April 2021)
Van Herk, K. (2021) Southern Patagonia. Available from: https://kok-van-herk.smugmug.com/search#q=Ranunculus (accessed 3 April2021)
Villars, D. (1786) Histoire des plantes de Dauphiné. ?. 1. Chez l’Auteur etc., Grenoble; chez les Freres Perisse etc., Lyon; chez Prevost etc., Paris. xcii + 468 pp.
Viviani, D. (1824) Florae Libycae specimen sive plantarum enumeratio Cyrenaicam, Pentapolim, Magnae Syrteos desertum, et regionem Tripolitanam incolentium quas ex siccis speciminibus delineavit. Ex typo. Pagano, Genuæ (Genova). xii + 68 pp. + XXVII tabels.
Wen, J. & Ickert-Bond, S.M. (2009) Evolution of the Madrean-Tethyan disjunctions and the North and South American amphitropical disjunctions in plants. Journal of Systematics and Evolution 47 (5): 331–348.
Wiegleb, G. (1988) Notes on Japanese Ranunculus subgenus Batrachium. Acta Phytotaxonomica et Geobotanica 29: 117–132.
Wiegleb, G. (2020) Die Ranunculaceae der Flora von Zentraleuropa: Ranunculus Sektion Batrachium. In: Jäger, E.J. & Kadereit, J.W. (ed.) Gesellschaft zur Erforschung der Flora Deutschlands. http://www.flora-deutschlands.de/files/Ranunculaceae-Ranunculus_Sect._Batrachium.pdf (accessed 3 April 2021)
Wiegleb, G., Bobrov, A.A. & Zalewska-Ga?osz, J. (2017) A taxonomic account of Ranunculus section Batrachium (Ranunculaceae). Phytotaxa 319 (1): 1?55. https://doi.org/10.11646/phytotaxa.319.1.1
Zuloaga, F.O. & Morone, O. (ed.) (1999) Catálogo de las plantas vasculares de la República Argentina. Vol. 2. Dicotyledoneae (2 issues). Monographs in Systematic Botany. Vol. 74. Missouri Botanical Garden, St. Louis, 1269 pp.
Britton, N.L. (1890) New and noteworthy North American phanerogams. III. Bulletin of the Torrey Botanical Club 17: 310–316.
Candolle, de, A.P. (1818) [1817] Regni vegetabilis systema naturale, sive ordines, genera et species plantarum secundum methodi naturalis normas digestarum et descriptarum. Vol. 1. Sumptibus sociorum Treuttel et Würtz, Parisiis etc. 564 pp.
Cook, C.D.K. (1966) A monographic study of Ranunculus subgenus Batrachium (DC.) A. Gray. Mitteilungen der Botanischen Staatssammlung München 6: 47?237.
Drew, W.B. (1936) Contributions from the Gray Herbarium of Harvard University – No. CX. The North American representatives of Ranunculus, § Batrachium. Rhodora 38 (445): 1–47. https://www.jstor.org/stable/23303399
EAAFP (East Asian-Australasian Flyway Partnership) (2021) What is a flyway? https://www.eaaflyway.net/the-flyway/ (accessed 27 Apr 2021)
Emadzade, K., Gehrke, B., Linder, H.P. & Hörandl, E. (2011) The biogeographical history of the cosmopolitan genus Ranunculus L. (Ranunculaceae) in the temperate to meridional zones. Molecular Phylogenetics and Evolution 58 (1): 4–21. https://doi.org/10.1016/j.ympev.2010.11.002
Flora de la Argentina (2018) Ranunculus trichophyllus Chaix. Available from: http://www.floraargentina.edi.ar/detalleespecie.asp? (accessed 8 October 2019)
Godron, D.A. (1840) Essai sur les renoncules a fruits ridés transversalement. Mémoires de la Société royale des sciences, lettres et arts de Nancy 1839: 8–41.
Gray, A. (1886) XXIV. Contributions to American botany. 1. A revision of the North American Ranunculi. Proceedings of the American Academy of Arts and Sciences 21: 363–378.
Hiern, W.P. (1871) On the forms and distribution over the world of the Batrachium section of Ranunculus Journal of Botany, British and foreign 9: 65–69.
INTA (Instituto Nacional de Tecnologia Agropecuaria) (2021) Herbario digital. Ranunculus trichophyllus Chaix. Available from: http://herbariodigital.inta.gob.ar/especie.php?codigo=RATR (accessed 4 April 2021)
Jopek, M. & Zalewska-Ga?osz, J. (2020) Phylogenetic relations of selected taxa of Ranunculus sect. Batrachium. In: Proceedings of IX International scientific conference on aquatic macrophytes “Hydrobotany 2020” (Borok, Russia, 17–21 October, 2020). pp. 190–192. [https://ibiw.ru/download/4221187.PDF]
Jussieu, de, A.L. (1789) Genera plantarum: secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratum, anno M.DCC.LXXIV. V. Herissant et T. Barrois, Parisiis. 498 pp.
Krylov, P.N. (1931) Flora Zapadnoi Sibiri. Vyp. 5. Aizoaceae–Berberidaceae [Flora of West Siberia. T. 5. Aizoaceae–Berberidaceae]. Tomskoe otdelenie RBO, Tomsk. pp. 979–1227 + xii. [in Russian]
Linnaeus, C. (1753) Species plantarum: exhibentes plantas rite cognitas ad genera relatas. Vol. 1. L. Salvii, Holmiae. 574 pp.
Lourteig, A. (1951) Ranunculáceas de Sudamérica templada. Darwiniana 9 (3?4): 397?608. [https://www.jstor.org/stable/23211739]
Lourteig, A. (1984) Ranunculaceae. In: Correa, M.N. (ed.) Flora Patagónica, Colección Científica del Instituto Nacional de Tecnología Agropecuaria, Buenos Aires 8 (4a): 284?322.
Luferov, A.N. (1997) K taksonomii lyutikov iz podroda Batrachium (DC.) Peterm. [On taxonomy of buttercups of subgenus Batrachium (DC.) Peterm.]. Byulleten’ Glavnogo Botanicheskogo Sada [Bulletin of Main Botanical Garden] 175: 56–58. [in Russian]
Lumbreras, A., Molina, J.A., Benavent, A., Marticorena, A. & Pardo, C. (2014) Disentangling the taxonomy and ecology of South American Ranunculus subgen. Batrachium. Aquatic Botany 114: 21?28. https://doi.org/10.1016/j.aquabot.2013.12.004
McBride, J.F. (1937) 5. Ranunculus. In: Flora of Peru. Part 2. no. 2. Field Museum of Natural History. Botanical Series 13: 257?661. [https://www.biodiversitylibrary.org/item/19766#page/9/mode/1up]
Nakai, T. (1928) Notulae ad plantas Japoniae et Koreae. XXXV. Botanical Magazine 42: 1–26.
Peru Checklist (2021) Ranunculus aquatilis L. Available from: http://tropicos.org/Name/27101420?projectid=5 (accessed 8 October 2019)
Pran?l, J., Koutecký, P., Trávní?ek, P., Jarolímová, V., Lu?anová, M., Koutecká, M. & Kaplan, Z. (2018) Cytotype, variation, cryptic diversity and hybridization in Ranunculus sect. Batrachium revealed by flow cytometry and chromosome number. Preslia 90 (3): 195–223. https://doi.org/10.23855/preslia.2018.195
Raynal-Roques, A. (1992) VI.2a. The higher plants. In: Dejoux, C., Iltis, A. (ed.) Lake Titicaca, a synthesis of limnological knowledge, Kluwer, Dordrecht, pp. 223?231. [https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-08/37968.pdf]
Reiche, K. (1894) Estudios críticos sobre la flora de Chile. Anales de la Universidad de Chile 88 (1894): 55?100. https://doi.org/10.5354/0717-8883.2012.21710
Ruiz, E. (2001) Ranunculaceae. In: Marticorena, C., Rodriguez, R. (ed.) Flora of Chile. Vol. 2 (1). Winteraceae–Ranunculaceae, Ed. Univ. de Conceptión, Conceptión, pp. 40?80.
San Martín, C., Pérez, Y., Montenegro, D. & Alvarez, M. (2011) Diversidad, hábitat, y hábitat de macrophytos acuáticos en la Patagonia occidental (Región de Aisén, Chile). Anales Instituto Patagonia (Chile) 39 (1): 23?41. https://doi.org/10.4067/S0718-686X2011000100002
Schrank, von, F.P. (1789) Baiersche Flora. Bd. 2. J.B. Strohl, München, 703 pp.
Sergievskaja, L.P. (1964) P.N. Krylov Flora Zapadnoi Sibiri. Vyp. 12 (doplnitel’nyi). Ch. 2 [P.N. Krylov Flora of West Siberia. T. 12 (additional). Pt. 2]. Izdatel’stvo Tomskogo universiteta, Tomsk. pp. 3255–3550 + l. [in Russian]
Spegazzini, C. (1896) Plantas per fuegiam a Caroli Spegazzini anno 1882 collectae. Anales del Museo Nacional de Historia Natural de Buenos Aires 5: 39?104.
Teillier, S. (2021) Clave de la identicifación de las especies de Ranunculus in Chile. In: Chloris chilensis. Revista chilena de Flora y vegetación. 4 pp. (accessed 28 March 2021)
Telford, A., O’Hare, M., Cravers, S. & Holmes, N. (2011) Can genetic barcoding be used to identify aquatic Ranunculus L. subgenus Batrachium (DC.) A. Gray? A test using some species from the British Isles. Aquatic Botany 95 (1): 65–70. https://doi.org/10.1016/j.aquabot.2011.03.004
Urrutia Contreras, N.C. (2016) Biodiversidad florística y vegetaticonal del humedal costero Putú, Región del Maule, Chile. Trabajo de titulación, Univ. Austral de Chile, Valdivia, Nathalie, 89 pp. [http://cybertesis.uach.cl/tesis/uach/2016/fifu.81b/doc/fifu.81b.pdf]
Urrutia Estrada, J., Sanchez Gonzales, P., Pauchard Cortés, A. & Hauenstein Barra, E. (2017) Flora acuática y palustre introducida en Chile. Universidad de Concepción, Conception, 92 pp. [http://www.lib.udec.cl/wp-content/uploads/2017/11/Flora-acuatica.pdf]
Van den Brink, M. (2021) Marijn van den Brink‘s photos. Argentina, South Patagonia. Available from: https://photos.v-d-brink.eu/Flora-and-Fauna/South-America/Argentina-South-Patagonia/i-vdwvsDJ (accessed 3 April 2021)
Van Herk, K. (2021) Southern Patagonia. Available from: https://kok-van-herk.smugmug.com/search#q=Ranunculus (accessed 3 April2021)
Villars, D. (1786) Histoire des plantes de Dauphiné. ?. 1. Chez l’Auteur etc., Grenoble; chez les Freres Perisse etc., Lyon; chez Prevost etc., Paris. xcii + 468 pp.
Viviani, D. (1824) Florae Libycae specimen sive plantarum enumeratio Cyrenaicam, Pentapolim, Magnae Syrteos desertum, et regionem Tripolitanam incolentium quas ex siccis speciminibus delineavit. Ex typo. Pagano, Genuæ (Genova). xii + 68 pp. + XXVII tabels.
Wen, J. & Ickert-Bond, S.M. (2009) Evolution of the Madrean-Tethyan disjunctions and the North and South American amphitropical disjunctions in plants. Journal of Systematics and Evolution 47 (5): 331–348.
Wiegleb, G. (1988) Notes on Japanese Ranunculus subgenus Batrachium. Acta Phytotaxonomica et Geobotanica 29: 117–132.
Wiegleb, G. (2020) Die Ranunculaceae der Flora von Zentraleuropa: Ranunculus Sektion Batrachium. In: Jäger, E.J. & Kadereit, J.W. (ed.) Gesellschaft zur Erforschung der Flora Deutschlands. http://www.flora-deutschlands.de/files/Ranunculaceae-Ranunculus_Sect._Batrachium.pdf (accessed 3 April 2021)
Wiegleb, G., Bobrov, A.A. & Zalewska-Ga?osz, J. (2017) A taxonomic account of Ranunculus section Batrachium (Ranunculaceae). Phytotaxa 319 (1): 1?55. https://doi.org/10.11646/phytotaxa.319.1.1
Zuloaga, F.O. & Morone, O. (ed.) (1999) Catálogo de las plantas vasculares de la República Argentina. Vol. 2. Dicotyledoneae (2 issues). Monographs in Systematic Botany. Vol. 74. Missouri Botanical Garden, St. Louis, 1269 pp.