Histogram of pollen sizes

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Here's a histogram of pollen sizes (~30 grains per species) from 3 individual plants of Coreopsis palmata, Echinacea angustifolia, and Heliopsis helianthoides.

gregPollenDataSet.png

Greg outlined the methods taking the measurements here. Greg, what software program did you use?

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For the measuring of the pollen I used the scopephoto software that came with the camera. It had a setting for pixels since the magnification and field of view were consistent for all images. I tallied it with an excel sheet.

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