A Note on Iris Flower Anthesis: Mechanism and Meaning of Sudden Flower Opening

Bernd Heinrich

doi:10.1656/045.023.0309

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Bernd Heinrich^*

^*Box 153, Weld, ME 04285; bheinrich153@gmail.com.

Abstract

Experiments with Iris pseudacorus (Yellow Iris) reveal the mechanics of a sudden-release phenomenon in these flowers caused by slow bending of the outer tepals while their top-margins cling together, leading to stored mechanical energy that is released explosively. In this note, I discuss the possible adaptive significance of this flower behavior in terms o f pollinator learning-behavior.

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Bernd Heinrich "A Note on Iris Flower Anthesis: Mechanism and Meaning of Sudden Flower Opening," Northeastern Naturalist 23(3), (1 September 2016). https://doi.org/10.1656/045.023.0309

Published: 1 September 2016

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