Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America
DOI:
https://doi.org/10.30972/bon.3327697Palavras-chave:
Allioideae, bioma Pampa, Campos, Monanthoscordum, UniflorumResumo
Three new Amaryllidaceae species are described: Nothoscordum elongatum Deble & B. P. Moreira, N. parvum Deble & B. P. Moreira and N. urutauense Deble & H. A. Keller. Nothoscordum elongatum and N. parvum grow in central-eastern Rio Grande do Sul state, while N. urutauense is narrowly endemic to southern Misiones Province, northeast Argentina. The three new taxa are characterized by a strong alliaceous odor, pilose leaves and scapes, and 1 or 2-flowered inflorescence. Nothoscordum elongatum is segregated from N. marchesii by its densely pilose leaves and scapes (vs. glabrous leaves and scapes), flowers with longer pedicels and ovaries with fewer ovules per locule. Nothoscordum parvum is similar to N. modestum and N. urutauense; however, it can be readily separated from both species by the presence of bulbils surrounding the main bulb, the flowers that are narrowly infundibuliform, fused towards the base for 1.8-2.2 mm, and the scapes that are erect at fruit maturity. Nothoscordum urutauense differs from N. inundatum by its broader leaves, flowers with tepals fused at the base for 0.5-1 mm, and free filaments at base. These three species of Nothoscordum are described, illustrated, compared with morphologically similar taxa, and featured with their geographic distribution. In addition, a key to distinguish the 1- or 2-flowered species of Nothoscordum is proposed.
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Beauverd, G. (1908). Nouvelles espèces uruguayennes du genre Nothoscordum Kunth. Bulletin de L´Herbier Boissier, 2a. sér, 12: 994-1007.
Bilenca, D. & Miñarro, F. (2004). Identificación de áreas valiosas de pastizal en las Pampas y Campos de Argentina, Uruguay y Sur de Brasil. Fundación Vida Silvestre, Buenos Aires.
Cabrera, Á. L. (1976). Regiones Fitogeográficas Argentinas. Enciclopedia Argentina de Agricultura y Jardinería Tomo II, Fascículo 1. Acme, Buenos Aires. CPRM (Serviço Geológico do Brasil). (2009). Escala 1: 15 km. Mapa de Geodiversidade do Estado do Rio Grande do Sul. Brasília.
Crosa, O. (1975). Las especies unifloras del género Nothoscordum Kunth y el género Ipheion Raf. de la tribu Allieae (Liliaceae). Darwiniana 19: 335-344.
Crosa, O. (2006). Nothoscordum Izaguirreae, nueva especie uniflora de Alliaceae de Uruguay. Hickenia 61: 271-275.
Deble, L. P. (2022). Notes on some poorly-known or neglected species of the genera Beauverdia and Nothoscordum (Amaryllidaceae). Balduinia 69: 2-12. DOI: https://doi.org/10.5902/2358198071123.
Deble, L. P. & Moreira, B. P. (2022). The rediscovery of Nothoscordum modestum (Amaryllidaceae) helps to understand the subordination of Beauverdia in Nothoscordum. Balduinia 70: 2-7. DOI: https://doi. org/10.5902/2358198073844.
García, N., Sassone, A. B., Pinto, R. & Román, M. J. (2022). Atacamallium minutiflorum (Amaryllidaceae, Allioideae), new genus and species from the coastal desert of northern Chile. Taxon 71: 552-562. https:// doi.org/10.1002/tax.12684
Guaglianone, E. R. (1972). Sinopsis de las especies de Ipheion Raf. y Nothoscordum Kunth (Liliáceas) de Entre Ríos y regiones vecinas. Darwiniana 17: 159-242.
Herter, W. G. (1943). Beauverdia genum novum Liliacearum. Boissiera 7: 505-512.
Herter, W. G. (1956). Flora del Uruguay. Revista Sudamericana de Botánica 1: 216.
IBGE (Instituto Brasileiro de Geografia e Estatística). (2004). Mapa da vegetação do Brasil e Mapa de Biomas do Brasil. Escala 1: 5000.
IUCN Standards and Petitions Committee. (2012). Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0.
IUCN Species Survival Commission, International Union for the Conservation of Nature. Gland, Switzerland and Cambridge, UK. iii + 41 pp.
IUCN Standards and Petitions Committee. (2019). Guidelines for Using the IUCN Red List Categories and Criteria, version 14.
IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, UK. https://nc. iucnredlist.org/redlist/ content/attachment_files/ RedListGuidelines.pdf
Kunth, K. S. (1843). Nothoscordum. Enumeratio plantarum omnium hucusque cognitarum: secundum familias naturales disposita, adjectis characteribus, differentiis et synonymis 4: 457-464. https://doi. org/10.5962/bhl.title.67381
Pellicer, J., Hidalgo, O., Walker, J., Chase, M. W., Christenhusz, M. J., Shackelford, G., Leitch, I. J. & Fay, M. F. (2017). Genome size dynamics in tribe Gilliesieae (Amaryllidaceae, subfamily Allioideae) in the context of polyploidy and unusual incidence of Robertsonian translocations. Botanical Journal of the Linnean Society 184: 16-31. https://doi.org/10.1093/botlinnean/box016
Rafinesque, C. S. (1837). Flora Telluriana Pars Prima. Introd, et Classific. Ad mantissima synoptica. Nova Genera plantarum vel nov. ord. et spec. In orbis Tellurianum 2. Printed for the author by H. Probasco, Philadelphia. https://doi.org/10.5962/bhl.title.7751
Ravenna, P. F. (1978). Studies in the Allieae II. Plant Life. Stanford, California 34: 144. Ravenna, P. F. (1991a). New species of Nothoscordum (Alliaceae) VI. Onira Botanic Leaflets 3: 12-14.
Ravenna, P. F. (1991b). New species of Nothoscordum (Alliaceae) XIV. Onira Botanic Leaflets 3: 40-41.
Sassone, A. B, Giussani, L. M. & Guaglianone, E. R. (2014). Beauverdia, a resurrected genus of Amaryllidaceae (Allioideae, Gilliesieae). Systematic Botany 39: 767-775. https://doi.org/10.1600/036364414X681527
Sassone, A. B. & Giussani, L. M. (2018). Reconstructing the phylogenetic history of the tribe Leucocoryneae (Allioideae): Reticulate evolution and diversification in South America. Molecular and Phylogenetic Evolution 127: 437-448. https://doi.org/10.1016/j.ympev.2018.04.034.
Soriano, A., León, R. J. C., Sala, O. E., Lavado, R. S., Deregibus, V. A., Cahuepé, O., Scaglia, A., Velazquez, C.A. & Lemcoff, J.H. (1992). Río de la Plata. En Coupland, R.T. (ed.), Ecosystems of the World. Natural Grasslands, pp. 367-407. Introduction and Western Hemisphere. Elsevier, Amsterdam.
Souza, G., Crosa, O. Speranza, P. & Guerra, M. (2016). Phylogenetic relations in tribe Leucocoryneae (Amaryllidaceae, Allioideae) and the validation of Zoellnerallium based on DNA sequences and cytomolecular data. Botanical Journal of the Linnean Society 182: 811-824. https://doi.org/10.1111/boj.12484.
Thiers, B. (2023) [continuing database]. 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 21 July 2023)
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