Pollen
fine, powdery substance of microscopic rains discharged from male part of lower or cone.
Self pollination
the transfer of ripe pollen from an anther to a receptive stigma of the same flower or other flowers on the same plant
Cross pollination
the transfer of ripe pollen from the anther of one flower to the receptive stigma of a flower on another plant
Nectar
sugary fluid secreted in flowers to encourage pollination by insects and flowers