Fertile florets of Cosmos daisy

Fertile florets of Cosmos daisy

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Credit: M.I. WALKER/SCIENCE PHOTO LIBRARY

Caption: Light micrograph of a section through a group of fertile florets from the centre of a flower of the daisy, Cosmos bipinnatus. Each daisy 'flower' is a mass of thousands of tiny floral units or florets. Those at the edge - the petals - are sterile. Each floret is seen to contain five paired anthers, recognisable by the mass of brown-stained pollen grains within them. They surround the carpel tissue, stained pale blue; the developing ovules within the carpel are the small orange circles. Magnification: x16 at 35mm size. Reference: MICROCOSMOS, figure 4.23, page 78.

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Keywords: botany, bud, cosmia sp., cosmos, flower, flowering part, nature, parts, plant, plants, section through

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