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Male sporangium of a pine


1  microsporophyll
3  remnants of sporogenous tissue
4  pollen
2  microsporangium wall

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

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.

last modified: 5 Jun 2014