Longitudinal section of a male cone of Pinus |
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With labels Legend:
1 microsporophyll 2 microsporangium containing pollen grains
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English name: Pine Scientific name: Pinus sp. Familia: Pinaceae Classis: Coniferopsida Phylum: Gymnospermae Regnum: Plantae
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In the microsporangium microsporocytes undergo meiosis, giving rise to microspore that divide mitotically and form pollen grains |