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Home Journals Annals of Botany Development and evolution of extremely complex flowers

Development and evolution of extremely complex flowers

The two very species-rich families Apocynaceae and Orchidaceae contain the most complex flowers in the angiosperms. Although they are not related they show a number of amazing convergent similarities in flower structure.

Different potential for synorganization of floral organs in different phyllotaxis patterns.
Different potential for synorganization of floral organs in different phyllotaxis patterns. For more details see Endress (2016)

Endress reviews and compares development and evolution of this complexity in both families. It has arisen by progressive synorganization of the basic floral organs, especially androecium and gynoecium, and partly also by the emergence of novel floral parts. As a result the flowers look puzzling and the basic organs can no longer be easily recognized at first sight.

Annals of Botany Officehttp://aob.oxfordjournals.com
The Annals of Botany Office is based at the University of Oxford.

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