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- Title
Aspects of floral morphology in Ambrosina and Arisarum (Araceae).
- Authors
Barabé, Denis; Lacroix, Christian; Gibernau, Marc
- 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, inaperturate, striate–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.
- Subjects
AMBROSIA artemisiifolia; ARACEAE; PLANT morphology; RAGWEEDS; PLANT phylogeny; POLLEN; CALCIUM oxalate
- Publication
Canadian Journal of Botany, 2004, Vol 82, Issue 2, p282
- ISSN
0008-4026
- Publication type
Article
- DOI
10.1139/b03-125