1. Pollen Grain Development
Formation of the Male Gamete

2. The Stamen is Diploid
Microspore Mother Cells are found in the Anther

3. Meiosis
4 Haploid Cells /A Tetrad is formed
Pollen Grains

4. Mitosis Each Pollen Grain now has two haploid nuclei
(a) A Tube Nucleus
(b) A Generative Nucleus

5. Each Species of Pollen is unique
Exine = Outer Protective Layer
Intine = Inner Protective Layer

6. Mitosis After Pollination the generative nucleus divides again
The Tube nucleus forms the pollen tube
The Generative Nucleus forms the 2 male Gametes