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Leaf and inflorescence axis anatomy of Brazilian species of Rapateoideae (Rapateaceae, Poales) Anais da ABC (AABC)
Daltin,Ângela L.; Oriani,Aline; Scatena,Vera L..
The anatomy of leaves and inflorescence axes of Spathanthus (2 spp.), Rapatea (2 spp.), Cephalostemon(1 sp.), and Duckea(1 sp.) (Rapateoideae, Rapateaceae) was studied to identify useful characters for taxonomy. The cross-section shape of inflorescence axis differentiates the genera, while the cross-section shape and structure of leaf midrib has a specific value. The following characteristics are exclusive of Spathanthus: silica cells randomly distributed in the leaf epidermis; plicate chlorenchyma in the leaf blade; presence of fiber bundles in the mesophyll and in the inflorescence axis parenchyma. Spathanthus is also distinguished by the number, type and distribution of vascular bundles in the inflorescence axis. The genus Rapatea is characterized by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anatomy; Cephalostemon; Duckea; Poales; Rapatea; Rapateaceae; Spathanthus.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100157
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Rapateaceae in the state of Pará, Brazil Acta Botanica
Praia,Talita de S.; Gil,André dos S. Bragança; Secco,Ricardo de S..
ABSTRACT Rapateaceae comprises approximately 19 genera and 131 species distributed in the Neotropics, with the exception of Maschalocephalus, which is endemic to West Africa. In Brazil, there are nine genera and 38 species. The present paper is based on a taxonomic study of the species of Rapateaceae that occur in the state of Pará. Botanical specimens from seven herbaria were analyzed and the occurrence of five genera and eight species was confirmed for the state. An identification key to the genera and species, descriptions, illustrations and selected specimens are provided.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazonian species; Cephalostemon; Neotropic; North Region; Rapatea.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400628
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