Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment

Autores
Sancho, Gisela; Hind, D. J. Nicholas; Pruski, John F.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Podocoma is a southern South American genus. Species of Podocoma are herbs with short-radiate capitula, and marginal florets arranged in two or three series. The marginal corollas of Podocoma are shortly rayed with narrow limbs, and its pappus is of two or three series of scabrid bristles. The rostrate cypsela of Podocoma is one of the most distinct features of the genus. Podocoma is a key taxon in understanding the subtribe Podocominae, which includes many of the endemic southern South American genera of the Astereae. Podocoma traditionally contained seven mainly Brazilian species (P. asperrima, P. bellidifolia, P. blanchetiana, P. hieracifolia, P. hirsuta, P. regnelli, P. spegazzini) and the addition of two species of Conyza (C. notobellidiastrum and C. rivularis) was, perhaps, the most important change in the generic concept of Podocoma lately. However, recent molecular and morphology-based phylogenies do not support the inclusion of these two species within Podocoma. Morphological and anatomical studies are herein carried out in order to clarify the taxonomy of Podocoma and to establish the limits of the genus and its species. Based on the results of these morphological and anatomical studies and those from molecular and morphology-based phylogenies we exclude P. notobellidiastrum and P. rivularis from Podocoma. Moreover, P. regnelli and P. asperrima are regarded under synonymy of P. hirsuta and P. spegazzini respectively. Three species, P. bellidifolia, P. blanchetiana, and P. hieracifolia, are recognized herein as a complex, each of them very closely related to the others from a morphological point of view, however, they treated independently.
Fil: Sancho, Gisela. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Hind, D. J. Nicholas. Royal Botanic Gardens; Reino Unido
Fil: Pruski, John F.. Missouri Botanical Garden; Estados Unidos
Materia
Podocoma
Podocominae
Astereae
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:11336/242736
Acceder
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spelling Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessmentSancho, GiselaHind, D. J. NicholasPruski, John F.PodocomaPodocominaeAstereaehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Podocoma is a southern South American genus. Species of Podocoma are herbs with short-radiate capitula, and marginal florets arranged in two or three series. The marginal corollas of Podocoma are shortly rayed with narrow limbs, and its pappus is of two or three series of scabrid bristles. The rostrate cypsela of Podocoma is one of the most distinct features of the genus. Podocoma is a key taxon in understanding the subtribe Podocominae, which includes many of the endemic southern South American genera of the Astereae. Podocoma traditionally contained seven mainly Brazilian species (P. asperrima, P. bellidifolia, P. blanchetiana, P. hieracifolia, P. hirsuta, P. regnelli, P. spegazzini) and the addition of two species of Conyza (C. notobellidiastrum and C. rivularis) was, perhaps, the most important change in the generic concept of Podocoma lately. However, recent molecular and morphology-based phylogenies do not support the inclusion of these two species within Podocoma. Morphological and anatomical studies are herein carried out in order to clarify the taxonomy of Podocoma and to establish the limits of the genus and its species. Based on the results of these morphological and anatomical studies and those from molecular and morphology-based phylogenies we exclude P. notobellidiastrum and P. rivularis from Podocoma. Moreover, P. regnelli and P. asperrima are regarded under synonymy of P. hirsuta and P. spegazzini respectively. Three species, P. bellidifolia, P. blanchetiana, and P. hieracifolia, are recognized herein as a complex, each of them very closely related to the others from a morphological point of view, however, they treated independently.Fil: Sancho, Gisela. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Hind, D. J. Nicholas. Royal Botanic Gardens; Reino UnidoFil: Pruski, John F.. Missouri Botanical Garden; Estados UnidosWiley Blackwell Publishing, Inc2010-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242736Sancho, Gisela; Hind, D. J. Nicholas; Pruski, John F.; Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment; Wiley Blackwell Publishing, Inc; Botanical Journal of The Linnean Society; 163; 4; 8-2010; 486-5130024-4074CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/botlinnean/article/163/4/486/2418500info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8339.2010.01067.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:52:11Zoai:ri.conicet.gov.ar:11336/242736instacron: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 09:52:12.047CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
title Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
spellingShingle Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
Sancho, Gisela
Podocoma
Podocominae
Astereae
title_short Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
title_full Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
title_fullStr Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
title_full_unstemmed Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
title_sort Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment
dc.creator.none.fl_str_mv Sancho, Gisela
Hind, D. J. Nicholas
Pruski, John F.
author Sancho, Gisela
author_facet Sancho, Gisela
Hind, D. J. Nicholas
Pruski, John F.
author_role author
author2 Hind, D. J. Nicholas
Pruski, John F.
author2_role author
author
dc.subject.none.fl_str_mv Podocoma
Podocominae
Astereae
topic Podocoma
Podocominae
Astereae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Podocoma is a southern South American genus. Species of Podocoma are herbs with short-radiate capitula, and marginal florets arranged in two or three series. The marginal corollas of Podocoma are shortly rayed with narrow limbs, and its pappus is of two or three series of scabrid bristles. The rostrate cypsela of Podocoma is one of the most distinct features of the genus. Podocoma is a key taxon in understanding the subtribe Podocominae, which includes many of the endemic southern South American genera of the Astereae. Podocoma traditionally contained seven mainly Brazilian species (P. asperrima, P. bellidifolia, P. blanchetiana, P. hieracifolia, P. hirsuta, P. regnelli, P. spegazzini) and the addition of two species of Conyza (C. notobellidiastrum and C. rivularis) was, perhaps, the most important change in the generic concept of Podocoma lately. However, recent molecular and morphology-based phylogenies do not support the inclusion of these two species within Podocoma. Morphological and anatomical studies are herein carried out in order to clarify the taxonomy of Podocoma and to establish the limits of the genus and its species. Based on the results of these morphological and anatomical studies and those from molecular and morphology-based phylogenies we exclude P. notobellidiastrum and P. rivularis from Podocoma. Moreover, P. regnelli and P. asperrima are regarded under synonymy of P. hirsuta and P. spegazzini respectively. Three species, P. bellidifolia, P. blanchetiana, and P. hieracifolia, are recognized herein as a complex, each of them very closely related to the others from a morphological point of view, however, they treated independently.
Fil: Sancho, Gisela. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Hind, D. J. Nicholas. Royal Botanic Gardens; Reino Unido
Fil: Pruski, John F.. Missouri Botanical Garden; Estados Unidos
description Podocoma is a southern South American genus. Species of Podocoma are herbs with short-radiate capitula, and marginal florets arranged in two or three series. The marginal corollas of Podocoma are shortly rayed with narrow limbs, and its pappus is of two or three series of scabrid bristles. The rostrate cypsela of Podocoma is one of the most distinct features of the genus. Podocoma is a key taxon in understanding the subtribe Podocominae, which includes many of the endemic southern South American genera of the Astereae. Podocoma traditionally contained seven mainly Brazilian species (P. asperrima, P. bellidifolia, P. blanchetiana, P. hieracifolia, P. hirsuta, P. regnelli, P. spegazzini) and the addition of two species of Conyza (C. notobellidiastrum and C. rivularis) was, perhaps, the most important change in the generic concept of Podocoma lately. However, recent molecular and morphology-based phylogenies do not support the inclusion of these two species within Podocoma. Morphological and anatomical studies are herein carried out in order to clarify the taxonomy of Podocoma and to establish the limits of the genus and its species. Based on the results of these morphological and anatomical studies and those from molecular and morphology-based phylogenies we exclude P. notobellidiastrum and P. rivularis from Podocoma. Moreover, P. regnelli and P. asperrima are regarded under synonymy of P. hirsuta and P. spegazzini respectively. Three species, P. bellidifolia, P. blanchetiana, and P. hieracifolia, are recognized herein as a complex, each of them very closely related to the others from a morphological point of view, however, they treated independently.
publishDate 2010
dc.date.none.fl_str_mv 2010-08
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/11336/242736
Sancho, Gisela; Hind, D. J. Nicholas; Pruski, John F.; Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment; Wiley Blackwell Publishing, Inc; Botanical Journal of The Linnean Society; 163; 4; 8-2010; 486-513
0024-4074
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242736
identifier_str_mv Sancho, Gisela; Hind, D. J. Nicholas; Pruski, John F.; Systematics of Podocoma Cass. (Asteraceae: Astereae): a generic reassessment; Wiley Blackwell Publishing, Inc; Botanical Journal of The Linnean Society; 163; 4; 8-2010; 486-513
0024-4074
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/botlinnean/article/163/4/486/2418500
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8339.2010.01067.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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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