วันอาทิตย์ที่ 3 เมษายน พ.ศ. 2554

3.3b Wind Pollination



- Wind pollination = the transfer of pollen from the anther to the stigma through air carried by the wind
- adaptation:
        - light weight pollen grains (e.g. wing feature)
        - anthers will hang clear from flower structure = sticking out so that they are exposed to the wind
        - stigmas will be exposed, have a large surface area (feather-like structure) to catch the pollen grains as they pass            through air on the wind and caught onto the stigma structure.
        - no colour is needed to attract the insects, no scent, no nectaries

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