California Native Plants!!
Part A of the flower is known as the:
1. Stamen
2. Carpel
3. Endosperm
4. Sepal
5. Stigma
A B
Part B of the flower is known as the:
1. Stamen
2. Carpel
3. Endosperm
4. Sepal
5. Stigma
A B
Part C of the flower is known as the:
1. Stamen
2. Carpel
3. Ovary
4. Sepal
5. Stigma
A B
C
Pollination
The transfer of pollen from the male anther to the female stigma
Strategies to Avoid Self-Pollination
Sexual reproduction is advantageous to an organism only if it happens with someone other than itself!
strategies to avoid self-pollination:• Timing – • Molecular recognition –
Pollen Distribution
Wind- not efficient and not spp. specific Animals• Insects• Birds• Mammals• Reptiles• amphibians
Flowering plants coevolved with pollinators
Day and Night Pollinators
Smelly!!
Carrion plant (Amorphophallus titanum)
Anoura fistulata
zygote in seed (2n)
fertilization DIPLOID
Fig. 30-3, p. 509
mature sporophyte (2n)
germination
meiosis in anther
meiosis in ovary
HAPLOID
eggs (n) sperm (n)
male gametophyte (n)
female gametophyte (n) Stepped Art
microspores (n) megaspores (n)
Fruits
• A mature, seed-containing ovary, that develop from other parts of a flower
Fruits function to protect and disperse seeds
Fruit!! Yum!
Adaptations for Fruit Dispersal
Kopi Luwak
Artificial pollination-