Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America

Autores
Peichoto, Myriam Carolina; Welker, Cassiano Aimberê Dorneles; Solís Neffa, Viviana Griselda
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Peichoto, Myriam Carolina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica; Argentina.
Fil: Peichoto, Myriam Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Fil: Welker, Cassiano Aimberê Dorneles. Universidade Federal do Rio Grande do Sul. Programa de Pós-Graduação em Botânica; Brasil.
Fil: Solís Neffa, Viviana Griselda. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura. Instituto de Botánica; Argentina.
Fil: Solís Neffa, Viviana Griselda. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Schizachyrium (Poaceae–Andropogoneae) includes ca. 60 species distributed in tropical and subtropical regions of the world. Although the genus has been revised recently for South America, a group of specimens with intermediate traits from Cerrado vegetation of Brazil and Paraguay was found. The aim of this paper is to assess the morphological variation of these specimens to clarify their taxonomic identity. Thirty-seven traits (15 qualitative and 22 quantitative characters) were analyzed using multivariate methods (cluster and principal coordinate analysis). The analysis included specimens from Central Brazil and Paraguay, as well as the type material of several morphologically similar species. The results obtained showed that the samples investigated form two clearly distinct groups from the species hitherto recognized. Based on this morphometric analysis, two new species of Schizachyrium from South America are proposed, one of them occurring in Brazil and Paraguay (Schizachyrium angustispiculatum), and the other restricted to Brazil (S. vallsii). Moreover, Andropogon luxurians proved as a distinct taxon from Schizachyrium sanguineum, being proposed the new combination of the name for the genus Schizachyrium (S. luxurians). Descriptions and illustrations of the two new species and the new combination are presented, as well as a key to separate them from other morphologically related species.
Fuente
Systematic Botany, 2015, vol. 40, no. 2, p. 1-13.
Materia
Brasil
Cerrado vegetation
Grasses
Paraguay
Systematics
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
Institución
Universidad Nacional del Nordeste
OAI Identificador
oai:repositorio.unne.edu.ar:123456789/30860
Acceder
id RIUNNE_d6e81da223752ecc4f52ac49916a0e35
oai_identifier_str oai:repositorio.unne.edu.ar:123456789/30860
network_acronym_str RIUNNE
repository_id_str 4871
network_name_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
spelling Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South AmericaPeichoto, Myriam CarolinaWelker, Cassiano Aimberê DornelesSolís Neffa, Viviana GriseldaBrasilCerrado vegetationGrassesParaguaySystematicsFil: Peichoto, Myriam Carolina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica; Argentina.Fil: Peichoto, Myriam Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.Fil: Welker, Cassiano Aimberê Dorneles. Universidade Federal do Rio Grande do Sul. Programa de Pós-Graduação em Botânica; Brasil.Fil: Solís Neffa, Viviana Griselda. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura. Instituto de Botánica; Argentina.Fil: Solís Neffa, Viviana Griselda. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.Schizachyrium (Poaceae–Andropogoneae) includes ca. 60 species distributed in tropical and subtropical regions of the world. Although the genus has been revised recently for South America, a group of specimens with intermediate traits from Cerrado vegetation of Brazil and Paraguay was found. The aim of this paper is to assess the morphological variation of these specimens to clarify their taxonomic identity. Thirty-seven traits (15 qualitative and 22 quantitative characters) were analyzed using multivariate methods (cluster and principal coordinate analysis). The analysis included specimens from Central Brazil and Paraguay, as well as the type material of several morphologically similar species. The results obtained showed that the samples investigated form two clearly distinct groups from the species hitherto recognized. Based on this morphometric analysis, two new species of Schizachyrium from South America are proposed, one of them occurring in Brazil and Paraguay (Schizachyrium angustispiculatum), and the other restricted to Brazil (S. vallsii). Moreover, Andropogon luxurians proved as a distinct taxon from Schizachyrium sanguineum, being proposed the new combination of the name for the genus Schizachyrium (S. luxurians). Descriptions and illustrations of the two new species and the new combination are presented, as well as a key to separate them from other morphologically related species.American Society Of Plant Taxonomists2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfPeichoto, Myriam Carolina, Welker, Cassiano Aimberê Dorneles y Solís Neffa, Viviana Griselda, 2015. Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America. Systematic Botany. Saint Louis: American Society Of Plant Taxonomists, vol. 40, no. 2, p. 461-473. ISSN-e 1548-2324.0363-6445http://repositorio.unne.edu.ar/handle/123456789/30860Systematic Botany, 2015, vol. 40, no. 2, p. 1-13.reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)instname:Universidad Nacional del Nordesteenghttps://doi.org/10.1600/036364415X688727info:eu-repo/semantics/restrictedAccess2026-09-24T12:49:50Zoai:repositorio.unne.edu.ar:123456789/30860instacron:UNNEInstitucionalhttp://repositorio.unne.edu.ar/Universidad públicaNo correspondehttp://repositorio.unne.edu.ar/oaiososa@bib.unne.edu.ar;sergio.alegria@unne.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:48712026-09-24 12:49:52.678Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordestefalse
dc.title.none.fl_str_mv Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
title Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
spellingShingle Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
Peichoto, Myriam Carolina
Brasil
Cerrado vegetation
Grasses
Paraguay
Systematics
title_short Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
title_full Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
title_fullStr Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
title_full_unstemmed Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
title_sort Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America
dc.creator.none.fl_str_mv Peichoto, Myriam Carolina
Welker, Cassiano Aimberê Dorneles
Solís Neffa, Viviana Griselda
author Peichoto, Myriam Carolina
author_facet Peichoto, Myriam Carolina
Welker, Cassiano Aimberê Dorneles
Solís Neffa, Viviana Griselda
author_role author
author2 Welker, Cassiano Aimberê Dorneles
Solís Neffa, Viviana Griselda
author2_role author
author
dc.subject.none.fl_str_mv Brasil
Cerrado vegetation
Grasses
Paraguay
Systematics
topic Brasil
Cerrado vegetation
Grasses
Paraguay
Systematics
dc.description.none.fl_txt_mv Fil: Peichoto, Myriam Carolina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica; Argentina.
Fil: Peichoto, Myriam Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Fil: Welker, Cassiano Aimberê Dorneles. Universidade Federal do Rio Grande do Sul. Programa de Pós-Graduação em Botânica; Brasil.
Fil: Solís Neffa, Viviana Griselda. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura. Instituto de Botánica; Argentina.
Fil: Solís Neffa, Viviana Griselda. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Schizachyrium (Poaceae–Andropogoneae) includes ca. 60 species distributed in tropical and subtropical regions of the world. Although the genus has been revised recently for South America, a group of specimens with intermediate traits from Cerrado vegetation of Brazil and Paraguay was found. The aim of this paper is to assess the morphological variation of these specimens to clarify their taxonomic identity. Thirty-seven traits (15 qualitative and 22 quantitative characters) were analyzed using multivariate methods (cluster and principal coordinate analysis). The analysis included specimens from Central Brazil and Paraguay, as well as the type material of several morphologically similar species. The results obtained showed that the samples investigated form two clearly distinct groups from the species hitherto recognized. Based on this morphometric analysis, two new species of Schizachyrium from South America are proposed, one of them occurring in Brazil and Paraguay (Schizachyrium angustispiculatum), and the other restricted to Brazil (S. vallsii). Moreover, Andropogon luxurians proved as a distinct taxon from Schizachyrium sanguineum, being proposed the new combination of the name for the genus Schizachyrium (S. luxurians). Descriptions and illustrations of the two new species and the new combination are presented, as well as a key to separate them from other morphologically related species.
description Fil: Peichoto, Myriam Carolina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica; Argentina.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Peichoto, Myriam Carolina, Welker, Cassiano Aimberê Dorneles y Solís Neffa, Viviana Griselda, 2015. Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America. Systematic Botany. Saint Louis: American Society Of Plant Taxonomists, vol. 40, no. 2, p. 461-473. ISSN-e 1548-2324.
0363-6445
http://repositorio.unne.edu.ar/handle/123456789/30860
identifier_str_mv Peichoto, Myriam Carolina, Welker, Cassiano Aimberê Dorneles y Solís Neffa, Viviana Griselda, 2015. Morphometric analysis of schizachyrium (poaceae–andropogoneae) reveals two new species from South America. Systematic Botany. Saint Louis: American Society Of Plant Taxonomists, vol. 40, no. 2, p. 461-473. ISSN-e 1548-2324.
0363-6445
url http://repositorio.unne.edu.ar/handle/123456789/30860
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://doi.org/10.1600/036364415X688727
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Society Of Plant Taxonomists
publisher.none.fl_str_mv American Society Of Plant Taxonomists
dc.source.none.fl_str_mv Systematic Botany, 2015, vol. 40, no. 2, p. 1-13.
reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname:Universidad Nacional del Nordeste
reponame_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
collection Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname_str Universidad Nacional del Nordeste
repository.name.fl_str_mv Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordeste
repository.mail.fl_str_mv ososa@bib.unne.edu.ar;sergio.alegria@unne.edu.ar
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score 13.265058

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