Conical cells on the petals of most flowering plants appear to play a much more grounding role for pollinating bees than scientists have previously assumed.
Bee landing on snapdragon
Image: Don Manning and Beverley Glover
University of Cambridge
According to a study to be published in the June 9 issue of Current Biology, these cone-shaped cells on the surface of petals appear to provide insect pollinators with secure footing while perched on the plant. "Most people assumed that [conical cells] played a role primarily in visual communication," said linkurl:David Baum,; plant evolutionary biologist at the University of Wisconsin-Madison, who did not participate in the research. It was never entirely clear what conical cells were for; one hypothesis held that by modifying the spectral properties of the petal, the cells enabled the plant to appear brighter to pollinators. In this study, "they show the conical cells help provide more friction...

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