Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America

Autores
Vega, Alvaro Jose; Dematteis, Massimiliano
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pollen grains from 16 species of Vernonanthura H. Rob. were studied. All the species exhibit the type 'A' pollen characteristic of the genus. These grains are spheroidal to prolate-spheroidal, subechinolophate, tricolporate, with a continuous tectum which is densely microperforate, exhibiting lophae surrounding irregular depressions and having prominent spines. Despite most of the species having a similar pollen type, some taxa can be recognised by the morphology of the spines. According to the spine index (length/width), the species analysed can be divided into three groups having respectively short, medium and long spines. In addition to the size of the spines, some taxa can be distinguished by spine shape. Vernonanthura pinguis (Griseb.) H. Rob. has spines which are constricted at the base, while V. oligactoides (Less.) H. Rob. exhibits small conical spines. Vernonanthura nudiflora (Less.) H. Rob. and V. schulziana (Cabrera) H. Rob. have spines with rounded apices. This study confirms that Vernonanthura is a well-defined group based on pollen characteristics and that pollen morphology is a significant feature in the characterisation of species and genera of Vernonieae. © 2011 AASP - The Palynological Society.
Fil: Vega, Alvaro Jose. 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
Fil: Dematteis, Massimiliano. 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
Materia
Evolution
Pollen
Taxonomy
Vernonia
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/76910
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South AmericaVega, Alvaro JoseDematteis, MassimilianoEvolutionPollenTaxonomyVernoniahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Pollen grains from 16 species of Vernonanthura H. Rob. were studied. All the species exhibit the type 'A' pollen characteristic of the genus. These grains are spheroidal to prolate-spheroidal, subechinolophate, tricolporate, with a continuous tectum which is densely microperforate, exhibiting lophae surrounding irregular depressions and having prominent spines. Despite most of the species having a similar pollen type, some taxa can be recognised by the morphology of the spines. According to the spine index (length/width), the species analysed can be divided into three groups having respectively short, medium and long spines. In addition to the size of the spines, some taxa can be distinguished by spine shape. Vernonanthura pinguis (Griseb.) H. Rob. has spines which are constricted at the base, while V. oligactoides (Less.) H. Rob. exhibits small conical spines. Vernonanthura nudiflora (Less.) H. Rob. and V. schulziana (Cabrera) H. Rob. have spines with rounded apices. This study confirms that Vernonanthura is a well-defined group based on pollen characteristics and that pollen morphology is a significant feature in the characterisation of species and genera of Vernonieae. © 2011 AASP - The Palynological Society.Fil: Vega, Alvaro Jose. 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; ArgentinaFil: Dematteis, Massimiliano. 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; ArgentinaAmerican Association of Stratigraphic Palynologists Foundation2011-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76910Vega, Alvaro Jose; Dematteis, Massimiliano; Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America; American Association of Stratigraphic Palynologists Foundation; Palynology; 35; 1; 6-2011; 94-1020191-6122CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/01916122.2010.549290info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/01916122.2010.549290info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:14Zoai:ri.conicet.gov.ar:11336/76910instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:46:14.581CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
title Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
spellingShingle Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
Vega, Alvaro Jose
Evolution
Pollen
Taxonomy
Vernonia
title_short Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
title_full Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
title_fullStr Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
title_full_unstemmed Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
title_sort Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America
dc.creator.none.fl_str_mv Vega, Alvaro Jose
Dematteis, Massimiliano
author Vega, Alvaro Jose
author_facet Vega, Alvaro Jose
Dematteis, Massimiliano
author_role author
author2 Dematteis, Massimiliano
author2_role author
dc.subject.none.fl_str_mv Evolution
Pollen
Taxonomy
Vernonia
topic Evolution
Pollen
Taxonomy
Vernonia
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Pollen grains from 16 species of Vernonanthura H. Rob. were studied. All the species exhibit the type 'A' pollen characteristic of the genus. These grains are spheroidal to prolate-spheroidal, subechinolophate, tricolporate, with a continuous tectum which is densely microperforate, exhibiting lophae surrounding irregular depressions and having prominent spines. Despite most of the species having a similar pollen type, some taxa can be recognised by the morphology of the spines. According to the spine index (length/width), the species analysed can be divided into three groups having respectively short, medium and long spines. In addition to the size of the spines, some taxa can be distinguished by spine shape. Vernonanthura pinguis (Griseb.) H. Rob. has spines which are constricted at the base, while V. oligactoides (Less.) H. Rob. exhibits small conical spines. Vernonanthura nudiflora (Less.) H. Rob. and V. schulziana (Cabrera) H. Rob. have spines with rounded apices. This study confirms that Vernonanthura is a well-defined group based on pollen characteristics and that pollen morphology is a significant feature in the characterisation of species and genera of Vernonieae. © 2011 AASP - The Palynological Society.
Fil: Vega, Alvaro Jose. 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
Fil: Dematteis, Massimiliano. 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
description Pollen grains from 16 species of Vernonanthura H. Rob. were studied. All the species exhibit the type 'A' pollen characteristic of the genus. These grains are spheroidal to prolate-spheroidal, subechinolophate, tricolporate, with a continuous tectum which is densely microperforate, exhibiting lophae surrounding irregular depressions and having prominent spines. Despite most of the species having a similar pollen type, some taxa can be recognised by the morphology of the spines. According to the spine index (length/width), the species analysed can be divided into three groups having respectively short, medium and long spines. In addition to the size of the spines, some taxa can be distinguished by spine shape. Vernonanthura pinguis (Griseb.) H. Rob. has spines which are constricted at the base, while V. oligactoides (Less.) H. Rob. exhibits small conical spines. Vernonanthura nudiflora (Less.) H. Rob. and V. schulziana (Cabrera) H. Rob. have spines with rounded apices. This study confirms that Vernonanthura is a well-defined group based on pollen characteristics and that pollen morphology is a significant feature in the characterisation of species and genera of Vernonieae. © 2011 AASP - The Palynological Society.
publishDate 2011
dc.date.none.fl_str_mv 2011-06
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 http://hdl.handle.net/11336/76910
Vega, Alvaro Jose; Dematteis, Massimiliano; Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America; American Association of Stratigraphic Palynologists Foundation; Palynology; 35; 1; 6-2011; 94-102
0191-6122
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76910
identifier_str_mv Vega, Alvaro Jose; Dematteis, Massimiliano; Pollen morphology of some species of Vernonanthura (Asteraceae, Vernonieae) from southern South America; American Association of Stratigraphic Palynologists Foundation; Palynology; 35; 1; 6-2011; 94-102
0191-6122
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/01916122.2010.549290
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/01916122.2010.549290
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Association of Stratigraphic Palynologists Foundation
publisher.none.fl_str_mv American Association of Stratigraphic Palynologists Foundation
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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