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pollen
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Also known as: pollen grain
Last Updated: • Article History
wind pollination
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Category: Animals & Nature
Key People:
Margaret Bryan Davis
Adolphe-Théodore Brongniart
Related Topics:
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Mar. 22, 2024, 6:08 AM ET (AP)
Allergy season arrived early in US. Here's how to keep pollen from ruining your spring

pollen, a mass of microspores in a seed plant appearing usually as a fine dust. Each pollen grain is a minute body, of varying shape and structure, formed in the male structures of seed-bearing plants and transported by various means (wind, water, insects, etc.) to the female structures, where fertilization occurs. In angiosperms, pollen is produced by the anthers of the stamens in flowers. In gymnosperms, it is formed in the microsporophylls of the microstrobili (male pollen cones). Pollen consists of one or more vegetative cells and a reproductive cell. A pollen grain itself is not the male gamete. In ...(100 of 489 words)

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