1. Life Cycle of Flowering Plants

2. Pollination 1.Pollen grain sticks to stigma 2.Tube cell elongates and burrow into style until it reaches ovule 3.Tube cell nucleus travels down the elongated cell followed by two sperm nuclei

3. Pollination 4.Tube cell nucleus degenerates 5.One sperm nucleus fuses with two endosperm nuclei forming a triploid endosperm 6.One sperm nucleus fuses with the egg to form zygote

4. Self-Incompatibility in Flowers

5. Seed Development Endosperm develops into food for embryo when it germinates Basic pattern of adult plant develops in the embryo –Roots – shoots axis Apical meristem – elongation –Radial Ground meristem Protoderm – epidermal tissues Procambium – vascular

6. Pollinators Coevolution of plants and pollinators –Mostly insects

7. Lines and color guide insects to nectar

8. Ultra Violet light reveals what insects see Visible UV

9. Mimicry Flower –Orchid (Chiloglottis trapeziformis) Pollinator –Wasp (Neozeleboria cryptoides)

10. Flowers produce female pheromones and mimic female wasp shape

11. Male wasp tries to copulate with flower causing pollen to be deposited onto male wasp

12. Male wasp flies to another flower and deposits pollen while trying to copulate