Aspects of floral morphology in Ambrosina and ...

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Title Aspects of floral morphology in Ambrosina and Arisarum (Araceae)
Author(s) Denis Barabe, Christian R. Lacroix, Marc Gibernau
Journal Canadian Journal of Botany
Date 2004
Volume 82
Issue 2
Start page 282
End page 289
Abstract The floral morphology of Ambrosina and Arisarum is analysed from a developmental and phylogenetic point of view. In Arisarum, there are atypical organs displaying male and female characteristics. This developmental study shows that the male flowers of Ambrosina are di- or tri-androus. A close phylogenetic relationship between Ambrosina and Arisarum is supported by their morphology. Both genera have the same type of pollen (ellipsoid, inapcrturate, striatc-reticulate) and the mode of dehiscence (by a longitudinal slit) of the thecae. In Arisarum, the pollen is mixed with extracellular prismatic crystals of calcium oxalate. [PUBLICATION ABSTRACT] Key words: atypical flowers, calcium oxalate crystals, flower development, phylogeny.
DOI 10.1139/b03-125

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