Abstract
The heterogeneity of Pelargonium in terms of structural blossom types and pollination syndromes indicates an independent and repeated evolution of convergent flower morphs in the genus and even in the sections. This suggests that pollinators played an important role as a selective force during the evolution of Pelargonium. Evolutionary lines in floral characters are surveyed and examples of striking convergencies in flower morphs of species placed in different sections are highlighted and discussed in the light of the current subdivision of the genus.
Résumé
La hétérogénéité de Pelargonium dans les sens des types structurels des fleurs et des syndromes de pollinisation indique l’évolution indépendante et répétée des morphes floraux convergents dans les genre et même dans les sections. Cela suggère que les pollinisateurs ont joué un rôle important comme force sélective pendant l’évolution de Pelargonium. Des lignes évolutionnaires des caractères floraux sont passées en revue et des exemples de convergences frappantes dans les morphes floraux d’espèces placées dans différentes sections sont soulignés et discutés tenant compte de la subdivision courante du genre.
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Struck, M., Van der Walt, J.J.A. (1996). Floral structure and pollination in Pelargonium . In: van der Maesen, L.J.G., van der Burgt, X.M., van Medenbach de Rooy, J.M. (eds) The Biodiversity of African Plants. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0285-5_77
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DOI: https://doi.org/10.1007/978-94-009-0285-5_77
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