Abstract
Argythamnia (Acalyphoideae, Euphorbiaceae) is a monophyletic genus with approximately 70 species exclusive to the New World, distributed from the southern United States to Patagonia. The greatest diversity of the genus occurs in southern North America, Central America and the Caribbean. The distribution of the genus is strongly related to seasonally dry vegetation, mainly in Seasonally Dry Tropical Forests and Woodlands in the Neotropics. Based on morphological and phylogenetic data, here we describe the eleventh species of the genus for Brazil and the fourth for the state of Bahia, where the greatest diversity of the genus in the country is concentrated. We present a description, distribution map, illustration, table with the main diagnostic characters, preliminary conservation status, palynological data, as well as the phylogenetic position for the new species.
References
- APG [Angiosperm Phylogeny Group] IV (2016) An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants. APGIV. Botanical Journal of the Linnean Society 181: 1–20. https://doi.org/10.1111/boj.12385
- Bachman, S., Moat, J., Hill, A.W., Torre, J. & Scott, B. (2011) Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: Smith, V. & Penev, L. (Eds.) Infrastructures for data publishing in biodiversity science. ZooKeys 117–126. https://doi.org/10.3897/zookeys.
- Browne, P. (1756) The civil and natural history of Jamaica in three parts, ed. 1. Published by the author, London, 503 pp.
- Casaretto, G. (1845) Novarum Stirpium Brasiliensium Decades 10. J.Ferrandi, Genova, pp. 81–89.
- Chodat, R. & Hassler, E. (1905) Plantae Hasslerianae: Enumeration des plantes recoltées au Paraguay. Bulletin de l’Herbier Boissier 2: 603–620.
- Cordeiro, I., Secco, R.S., Cardiel, J.M., Steinmann, V.W., Caruzo, M.B.R., Riina, R., Lima, L.R. de, Maya-L., C.A., Berry, P.E., Carneiro-Torres, D.S., Pscheidt, A.C., Silva, O.L.M., Melo, A.L., Sales, M.F.D., Silva, M.J, Oliveira, L.S.D.D., Souza, S.M.A., Sodré, R.C. & Martins, M.L.L. (2015) Euphorbiaceae. In: Lista de Espécies da Flora do Brasil. Jardim Botânico do Rio de Janeiro. Available from: http://floradobrasil2015.jbrj.gov.br/FB55888 (accessed January 2023).
- Croizat, L. (1945) New or critical Euphorbiaceae of the Americas. Journal of the Arnold Arboretum 26: 181–196. https://doi.org/10.5962/bhl.part.13121
- Darriba, D., Taboada, G.L., Doallo, R. & Posada, D. (2012) jModelTest 2: more models, new heuristics and parallel computing. Nature Methods 9: 772. https://doi.org/10.1038/nmeth.2109
- DRYFOR (2016) Plant diversity patterns in neotropical dry forests and their conservation implications. Forest Ecology 353 (6306): 1383–1387. https://doi.org/10.1126/science.353.6306.1377-c
- Erdtman, G. (1960) The acetolysis method. A revised description. Svensk Botanisk Tidskrift 39: 561–564.
- Fernandes, G.W. (2016) Ecology and conservation of mountaintop grasslands in Brazil. Springer International Publishing, Cham, 567 pp. https://doi.org/10.1007/978-3-319-29808-5
- Grisebach, A.H.R. (1859) Flora of the British West Indian Islands 1. Lovell Reeve & Co., London, pp. 1–96.
- IUCN (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Committee. Downloadable from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed January 2023).
- Ingram, J. (1953) New species and new combinations in the genus Argythamnia. Bulletin of the Torrey Botanical Club 80: 420–423. https://doi.org/10.2307/2482090
- Jussieu, A.H.L. (1824) Euphorbiacearum generibus medicisque earumdem viribus tentamen. Didot, Paris, 110 pp. https://doi.org/10.5962/bhl.title.51511
- Jussieu, A.H.L. (1832) Observations sur quelques plantes du Chili. Annales des Sciences Naturelles Botanique 25: 1–30.
- Klotzsch, J.F. (1841) Neue und weniger gekannte südamerikanische Euphorbiaceen-Gattungen. Archiv für Naturgeschichte 7: 175–209.
- Külkamp, J. (2022) Sistemática da Subtribo Ditaxinae (Euphorbiaceae). Doctoral Thesis. Escola Nacional de Botânica Tropical, Jardim Botânico do Rio de Janeiro, 245 pp.
- Külkamp, J. & Ornelas, M.M. (2023) Argythamnia. In: Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available from: https://floradobrasil.jbrj.gov.br/FB54163 (accessed July 2023).
- Külkamp, J., Iganci, J.R.V., Cordeiro, I. & Baumgratz, J.F.A. (2020) Ditaxis (Euphorbiaceae) from the Brazilian Caatinga, including a new species. Phytotaxa 455: 152–160. https://doi.org/10.11646/phytotaxa.455.2.6
- Külkamp, J., Riina, R., Ramírez-Amezcua, Y., Iganci, J.R.V., Cordeiro, I., González-Páramo, R., Lara-Cabrera, S.I. & Baumgratz, J.F.A. (2023) Systematics of Ditaxinae and related lineages within the subfamily Acalyphoideae (Euphorbiaceae) based on molecular phylogenetics. Biology 12: 173. https://doi.org/10.3390/biology12020173
- Miller, M.A., Pfeiffer, W. & Schwartz, T. (2010) Creating the CIPRES Science Gateway for inference of large phylogenetic trees. In: Proceedings of the Gateway Computing Environments Workshop (GCE). New Orleans, pp. 1–8. https://doi.org/10.1109/GCE.2010.5676129
- Mori, S.A., Silva, L.A.M., Lisboa, G. & Coradin, L. (1989) Técnicas do Manejo do Herbário Fanerogâmico. Centro de Pesquisas do Cacau, Ilhéus, Bahia, 104 pp.
- Müller, J. (1865) Euphorbiaceae. Vorläufige Mittheilungen aus dem für De Candolle’s Prodromus bestimmten Manuscript über diese Familie. Linnaea 34: 1–244.
- Müller, J. (1874) Euphorbiaceae. In: Martius, C.F.P. von & Eichler, A.W. (eds.) Flora Brasiliensis 11 (2). Fleischer, München & Leipzig, pp. 293–752.
- Nowicke, J.W., Takahashi, M. & Webster, G.L. (1999) Pollen morphology, exine structure and systematics of Acalyphoideae (Euphorbiaceae): Part 2. Tribes Agrostachydeae (Agrostistachys, Pseudagrostistachys, Cyttaranthus, Chondristylis), Chrozophoreae (Speraskia, Caperonia, Philyra, Ditaxis, Argythamnia, Chiropetalum, Doryxylon, Sumbaviopsis, Thyrsanthera, Melanolepis, Chrozophora), Caryodendreae (Caryodendron, Discoglypremna, Alchorneopsis), Bernardieae (Bernardia, Necepsia, Paranecepsia, Discocleidion, Adenophaedra) and Pycnocomeae (Pycnocoma, Droceloncia, Argomuellera, Blumeodendron, Podadenia, Ptychopyxis, Botryophora). Review of Palaeobotany and Palynology 105: 1–62. https://doi.org/10.1016/S0034-6667(98)00069-4
- Okonechnikov, K., Golosova, O. & Fursov, M. (2012) Unipro UGENE: A unified bioinformatics toolkit. Bioinformatics 28: 1166–1167. https://doi.org/10.1093/bioinformatics/bts091
- Pax, F. & Hoffmann, K. (1912) Euphorbiaceae—Acalypheae—Chrozophorinae. In: Engler, A. (ed.) Das Pflanzenreich IV.147.vi (Heft 57). Engelmann, Leipzig, pp. 1–142.
- Pennington, R.T., Lavin, M. & Oliveira-Filho, A.T. (2009) Woody plant diversity, evolution and ecology in the tropics: perspectives from seasonally dry tropical forests. Annual Review of Ecology, Evolution, and Systematics 40: 437–457. https://doi.org/10.1146/annurev.ecolsys.110308.120327
- Punt, W. (1962) Pollen morphology of the Euphorbiaceae with special reference to taxonomy. Wentia 7: 1–116. https://doi.org/10.1111/j.1438-8677.1962.tb00010.x
- Queiroz, L.P. de, Cardoso, D., Fernandes, M.F. & Moro, M.F. (2017) Diversity and evolution of flowering plants of the Caatinga Domain. In: Silva, J.M.C., Leal, I.R. & Tabarelli, M. (eds.) Caatinga. Springer International Publishing, Cham, pp. 23–63. https://doi.org/10.1007/978-3-319-68339-3_2
- Ronquist, F., Teslenko, M., Van der Mark, P., Ayres, D., 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.
- Saint-Hilaire, A. (1825) Histoire de plantes les plus remarquables du Breìsil et du Paraguay 14. Belin, Paris, 355 pp.
- Silva, O.L.M., Secco, R.S., Cordeiro, I., Caruzo, M.B.R., Külkamp, J., Orlandini, P., Medeiros, D., Martins, M.L.L., Torres, D.S.C., Farias, S.Q., Riina, R., Cordeiro, W.P.F.S., Bigio, N.C., Pereira-Silva, R.A., Santos, R.F.D., Sousa, A.A.C., Mendoza, F.J.M., Pereira, A.P.N., Carrión, J.F., Oliveira, L.S.D., Melo, A.L., Esser, H.-J., Rossine, Y., Pscheidt, A.C., Lima, L.R., Maya-Lastra, C.A., Muniz Filho, E., Valduga, E., Athiê-Souza, S.M., Oliveira, J.C.P., Mendes, J.C.R., Gama, B.R.A., Silva, D.F., Iganci, J.R.V., Leal, B.A., Sales, M.F., Hall, C.F., Moreira, A.S., Rosário, A.S., Hurbath, F., Silveira, T.C. & Chagas, E.C.O. (2023) Euphorbiaceae in Flora do Brasil 2020. Jardim Botânico do Rio de Janeiro. Available from: http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB113 (accessed August 2023).
- Souza, L.R., Carneiro-Torres, D.S., Saba, M.D. & Santos, F.A.R. (2017) Pollen morphology of the Acalyphoideae and Euphorbioideae (Euphorbiaceae) of the Caatinga ecoregion in Brazil. Plant Systematics and Evolution 303: 1161–1180. https://doi.org/10.1007/s00606-017-1429-4
- Sprengel, C.P.J. (1826) Systema vegetabilium, ed. “16” [ed. 17] 3. Sumtibus Librariae Dieterichianae, Göttingen, 936 pp.
- Swartz, O. (1788) Nova Genera et Species Plantarum seu Prodromus. Acad. M. Swederi, Stockholm, Uppsala & Abo, 158 pp.
- Thiers, B. (2023 continuously updated) Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/ih/ (accessed February 2023).
- Ule, E.H.G. (1908) Beiträge zur Flora von Bahia. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 42: 177–240.
- Veloso, H.P., Filho, A.L.R. & Lima, J.C.A. (1991) Classificação da vegetação brasileira, adaptada a um sistema universal. IBGE (Instituto Brasileiro de Geografia e Estatística). Departamento de Recursos Naturais e Estudos Ambientais, Rio de Janeiro, 124 pp.
- Webster, G.L. (2014) Euphorbiaceae. In: Kubitzki, K. (Ed.) The Families and Genera of Vascular Plants. Flowering plants 11. Eudicots. Malpighiales. Springer-Verlag, Berlin, Heidelberg, pp. 51–216. https://doi.org/10.1007/978-3-642-39417-1_10
- Webster, G.L. (1975) Conspectus of a new classification of the Euphorbiaceae. Taxon 24: 593–601. https://doi.org/10.2307/1220725
- Wurdack, K.J. & Davis, C.C. (2009) Malpighiales phylogenetics: gaining ground on one of the most recalcitrant clades in the angiosperm tree of life. American Journal of Botany 96: 1551–1570. https://doi.org/10.3732/ajb.0800207