The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)

Detalhes bibliográficos
Autor(a) principal: Mezzonato-Pires,Ana Carolina
Data de Publicação: 2017
Outros Autores: Mendonça,Cláudia Barbieri Ferreira, Milward-De-Azevedo,Michaele Alvim, Gonçalves-Esteves,Vania
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Botanica Brasilica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068
Resumo: ABSTRACT The center of diversity for Passiflora subg. Astrophea is in low altitude areas of northern South America. The majority of species of this group are difficult to find in nature. Seed morphology was described in detail for 25 species of Passiflora subgenus Astrophea, a subgenus that until now did not exist. For morphological analysis, 20 seeds per species were measured for length, width and thickness, and the arithmetic means calculated. The seeds varied in length, width and thickness. Eight types of ornamentation were found. The margins varied among crestate, dentate, parted, entire and parted-crestate. The seed apex can be distinguished by the shape and position of the apical appendage. Seed shape varied among obovate, lanceolate, cordiform, and oblong to elliptical. An identification key was developed and a PCA was performed both using the principal morphological characters. Morphological characters of seeds are a new source of data for delimiting taxa with quite conflicting morphological boundaries, such as seen here with the Passiflora subgenus Astrophea. Furthermore, seed morphology is especially useful for the identification of specimens with only fruits and, consequently, seeds available.
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spelling The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)Astropheafruitsmorphological charactersseedssystematicsABSTRACT The center of diversity for Passiflora subg. Astrophea is in low altitude areas of northern South America. The majority of species of this group are difficult to find in nature. Seed morphology was described in detail for 25 species of Passiflora subgenus Astrophea, a subgenus that until now did not exist. For morphological analysis, 20 seeds per species were measured for length, width and thickness, and the arithmetic means calculated. The seeds varied in length, width and thickness. Eight types of ornamentation were found. The margins varied among crestate, dentate, parted, entire and parted-crestate. The seed apex can be distinguished by the shape and position of the apical appendage. Seed shape varied among obovate, lanceolate, cordiform, and oblong to elliptical. An identification key was developed and a PCA was performed both using the principal morphological characters. Morphological characters of seeds are a new source of data for delimiting taxa with quite conflicting morphological boundaries, such as seen here with the Passiflora subgenus Astrophea. Furthermore, seed morphology is especially useful for the identification of specimens with only fruits and, consequently, seeds available.Sociedade Botânica do Brasil2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068Acta Botanica Brasilica v.31 n.1 2017reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062016abb0414info:eu-repo/semantics/openAccessMezzonato-Pires,Ana CarolinaMendonça,Cláudia Barbieri FerreiraMilward-De-Azevedo,Michaele AlvimGonçalves-Esteves,Vaniaeng2017-03-22T00:00:00Zoai:scielo:S0102-33062017000100068Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2017-03-22T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false
dc.title.none.fl_str_mv The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
title The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
spellingShingle The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
Mezzonato-Pires,Ana Carolina
Astrophea
fruits
morphological characters
seeds
systematics
title_short The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
title_full The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
title_fullStr The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
title_full_unstemmed The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
title_sort The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
author Mezzonato-Pires,Ana Carolina
author_facet Mezzonato-Pires,Ana Carolina
Mendonça,Cláudia Barbieri Ferreira
Milward-De-Azevedo,Michaele Alvim
Gonçalves-Esteves,Vania
author_role author
author2 Mendonça,Cláudia Barbieri Ferreira
Milward-De-Azevedo,Michaele Alvim
Gonçalves-Esteves,Vania
author2_role author
author
author
dc.contributor.author.fl_str_mv Mezzonato-Pires,Ana Carolina
Mendonça,Cláudia Barbieri Ferreira
Milward-De-Azevedo,Michaele Alvim
Gonçalves-Esteves,Vania
dc.subject.por.fl_str_mv Astrophea
fruits
morphological characters
seeds
systematics
topic Astrophea
fruits
morphological characters
seeds
systematics
description ABSTRACT The center of diversity for Passiflora subg. Astrophea is in low altitude areas of northern South America. The majority of species of this group are difficult to find in nature. Seed morphology was described in detail for 25 species of Passiflora subgenus Astrophea, a subgenus that until now did not exist. For morphological analysis, 20 seeds per species were measured for length, width and thickness, and the arithmetic means calculated. The seeds varied in length, width and thickness. Eight types of ornamentation were found. The margins varied among crestate, dentate, parted, entire and parted-crestate. The seed apex can be distinguished by the shape and position of the apical appendage. Seed shape varied among obovate, lanceolate, cordiform, and oblong to elliptical. An identification key was developed and a PCA was performed both using the principal morphological characters. Morphological characters of seeds are a new source of data for delimiting taxa with quite conflicting morphological boundaries, such as seen here with the Passiflora subgenus Astrophea. Furthermore, seed morphology is especially useful for the identification of specimens with only fruits and, consequently, seeds available.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0102-33062016abb0414
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Botânica do Brasil
publisher.none.fl_str_mv Sociedade Botânica do Brasil
dc.source.none.fl_str_mv Acta Botanica Brasilica v.31 n.1 2017
reponame:Acta Botanica Brasilica
instname:Sociedade Botânica do Brasil (SBB)
instacron:SBB
instname_str Sociedade Botânica do Brasil (SBB)
instacron_str SBB
institution SBB
reponame_str Acta Botanica Brasilica
collection Acta Botanica Brasilica
repository.name.fl_str_mv Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)
repository.mail.fl_str_mv acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com
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