1. Plant Science Terms and Anatomy
Horticulture I
Flowers

2. Flowers Pistil Stamen Petal Pistil: Female Stamen: Male Sepal Stigma
Anther
Recepticle
Style
Filament
Pedicel
Ovary

3. Flowers External Parts
Sepals-Green parts that cover and protect flower bud before it opens
Petals-are really leaves that are modified to attract insects for flower pollination, the pretty part that we call flowers

4. Flowers Internal Parts
Stamen-male part of the flower
Anther: Sac-like structure that contains pollen & the male sex cells
Filament: Short stalk that holds up the anther

5. Flowers Internal Parts
Pistil-female part of the flower
Stigma: Sticky part on top of the style where insects leave pollen
Style: Holds up stigma and connects it to the ovary
Ovary: If fertilized becomes fruit
(Fertilization is when pollen travels down the style joining the sperm & the ovule)
Ovules: The eggs or female sex cells that become seeds if fertilized

6. Parts of the Pistil
Stigma
Style
Ovary

7. Functions of Flowers Produce seeds used for sexual reproduction
Attract insects for pollination Pollination is the transfer of pollen
from anther to stigma
Cross Pollination is the transfer of pollen from the stamen to the stigma of one flower to a flower on another plant
Self Pollination is the transfer of pollen to the stigma of a flower on the same plant
Produce fruit to protect, nourish and carry (disperse) seeds

8. Complete-vs-Incomplete
Complete flowers have both male and female parts
Incomplete flowers have only male or female parts

9. What do you think?!

10. Activity Dissect this Azalea flower
Locate all the the internal & external parts of the flower
Tape all parts to a piece of paper, then label each internal and external part