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Detail of a longitudinal section of a male cone of Pinus


1  microsporophyll (2n)
3  pollen grains (contains haploid cells)
2  wall of microsporangium  (2n)

English name: Pine
Scientific name: Pinus sp.
Familia: Pinaceae
Classis: Coniferopsida
Phylum: Gymnospermae
Regnum: Plantae

The wall of the microsporangium dries and opens; pollen grains are then spread through the wind (anemophilous pollination)

last modified: 5 Jun 2014