| Male sporangium of a pine |
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Legend:
1 microsporophyll
3 remnants of sporogenous tissue
4 pollen
2 microsporangium wall
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English name: Pine
Scientific name: Pinus sp.
Familia: Pinaceae
Classis: Coniferopsida
Phylum: Gymnospermae
Regnum: Plantae
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| Male sporangium of a pine. The male sporogenous tissue (microsporocytes) is located in the sporangium . After meiosis each microsporocyt forms 4 microspores. Each microspore gives rise to a pollen grain (microgametophyt) through mitosis. |