Wednesday, April 29, 2009

Where are the style and stigma in an aster or a bellis perenis?

Daisy "flowers" are really specialized structures that are usually made up of numerous small flowers. Each of these small flowers has its own style and stigma ... the style pushes up through a tube formed by the anthers and pushes the pollen out so that it can be picked up by visiting insects. The style is slit at the top and after the pollen-presenting phase it opens up to reveal the receptive stigmatic surfaces. The web site at the link shows this reasonably well.





The "petals" of the daisy flower are modified individual flowers. When present, they usually have a style/stigma but no stamens.


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