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dc.contributor.author
Peichoto, Myriam Carolina
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dc.contributor.author
Welker, Cassiano Aimberê Dorneles
dc.contributor.author
Solis Neffa, Viviana Griselda
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dc.date.available
2018-03-26T19:32:35Z
dc.date.issued
2015-07
dc.identifier.citation
Peichoto, Myriam Carolina; Welker, Cassiano Aimberê Dorneles; Solis Neffa, Viviana Griselda; Morphometric Analysis of Schizachyrium (Poaceae-Andropogoneae) Reveals Two New Species from South America; American Society of Plant Taxonomists; Systematic Botany; 40; 2; 7-2015; 461-473
dc.identifier.issn
0363-6445
dc.identifier.uri
http://hdl.handle.net/11336/39985
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Society of Plant Taxonomists
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Brazil
dc.subject
Cerrado Vegetation
dc.subject
Grasses
dc.subject
Paraguay
dc.subject
Systematics
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Morphometric Analysis of Schizachyrium (Poaceae-Andropogoneae) Reveals Two New Species from South America
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-21T15:31:43Z
dc.identifier.eissn
1548-2324
dc.journal.volume
40
dc.journal.number
2
dc.journal.pagination
461-473
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Laramie
dc.description.fil
Fil: Peichoto, Myriam Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Welker, Cassiano Aimberê Dorneles. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Solis Neffa, Viviana Griselda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.journal.title
Systematic Botany
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1600/036364415X688727
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/aspt/sb/2015/00000040/00000002/art00012;jsessionid=t70b7hk2jt6d.x-ic-live-03
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