Silica bodies and their systematic implications at the subfamily level in Podostemaceae

Abstract Podostemaceae is a family of eudicotyledonous rheophytes with unique morphology, sometimes resembling algae, lichens or bryophytes. This study evaluates the taxonomic value of silica-body morphology (presence, location, size, shape, ornamentation) in species representing the three subfamili...

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Main Authors: Filipe Gomes Cardoso Machado da Costa, Claudia Petean Bove, Rosani do Carmo Oliveira Arruda, C. Thomas Philbrick
Format: Article
Language:English
Published: Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
Series:Rodriguésia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602011000400937&lng=en&tlng=en
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author Filipe Gomes Cardoso Machado da Costa
Claudia Petean Bove
Rosani do Carmo Oliveira Arruda
C. Thomas Philbrick
author_facet Filipe Gomes Cardoso Machado da Costa
Claudia Petean Bove
Rosani do Carmo Oliveira Arruda
C. Thomas Philbrick
author_sort Filipe Gomes Cardoso Machado da Costa
collection DOAJ
description Abstract Podostemaceae is a family of eudicotyledonous rheophytes with unique morphology, sometimes resembling algae, lichens or bryophytes. This study evaluates the taxonomic value of silica-body morphology (presence, location, size, shape, ornamentation) in species representing the three subfamilies: Tristicha trifaria (Bory ex Willd.) Spreng. (Tristichoideae), Weddellina squamulosa Tul. (Weddellinoideae) and Diamantina lombardii Novelo, C.T. Philbrick & Irgang (Podostemoideae). T. trifaria and D. lombardii have silica bodies in stems and leaves. In contrast, W. squamulosa exhibits silica bodies only in the scale-like leaves. The morphology of these bodies is unique to each species. The results denote the taxonomic usefulness of silica characteristics and a need for a more complete study of silica bodies throughout the family.
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spelling doaj.art-08aa39b9ad664c8da3cfc280deffc0b92022-12-22T00:45:23ZengInstituto de Pesquisas Jardim Botânico do Rio de JaneiroRodriguésia2175-786062493794210.1590/S2175-78602011000400019S2175-78602011000400937Silica bodies and their systematic implications at the subfamily level in PodostemaceaeFilipe Gomes Cardoso Machado da CostaClaudia Petean BoveRosani do Carmo Oliveira ArrudaC. Thomas PhilbrickAbstract Podostemaceae is a family of eudicotyledonous rheophytes with unique morphology, sometimes resembling algae, lichens or bryophytes. This study evaluates the taxonomic value of silica-body morphology (presence, location, size, shape, ornamentation) in species representing the three subfamilies: Tristicha trifaria (Bory ex Willd.) Spreng. (Tristichoideae), Weddellina squamulosa Tul. (Weddellinoideae) and Diamantina lombardii Novelo, C.T. Philbrick & Irgang (Podostemoideae). T. trifaria and D. lombardii have silica bodies in stems and leaves. In contrast, W. squamulosa exhibits silica bodies only in the scale-like leaves. The morphology of these bodies is unique to each species. The results denote the taxonomic usefulness of silica characteristics and a need for a more complete study of silica bodies throughout the family.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602011000400937&lng=en&tlng=enaquatic plantsPodostemaceaesilica bodies
spellingShingle Filipe Gomes Cardoso Machado da Costa
Claudia Petean Bove
Rosani do Carmo Oliveira Arruda
C. Thomas Philbrick
Silica bodies and their systematic implications at the subfamily level in Podostemaceae
Rodriguésia
aquatic plants
Podostemaceae
silica bodies
title Silica bodies and their systematic implications at the subfamily level in Podostemaceae
title_full Silica bodies and their systematic implications at the subfamily level in Podostemaceae
title_fullStr Silica bodies and their systematic implications at the subfamily level in Podostemaceae
title_full_unstemmed Silica bodies and their systematic implications at the subfamily level in Podostemaceae
title_short Silica bodies and their systematic implications at the subfamily level in Podostemaceae
title_sort silica bodies and their systematic implications at the subfamily level in podostemaceae
topic aquatic plants
Podostemaceae
silica bodies
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602011000400937&lng=en&tlng=en
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