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pollen
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Wind pollination honeybee pollination sage pollen meiosis in pollen pollen grains
How pollen can be used to deliver medicine
hibiscus angiosperm life cycle angiosperm floral anatomy Cross-pollination
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Wind pollination
Wind pollination Windblown pollen from the male cone of a lodgepole pine (Pinus contorta).

pollen

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Also known as: pollen grain
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Related Topics:
pollinium
exine
viscidium
sectile
intine

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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