1. Angiosperms: Flowering plants

2. Angiosperms: Flowering plants
Characteristics of Angiosperms (Division Anthophyta)
Presence of complete or incomplete flowers
Monocotyledonous or Dicotyledonous development
Xylem and Phloem well defined within monocot or dicot arrangements.
Presence of herbaceous or woody stems with monocot or dicot arrangement.
Woody stems containing spring and summer wood.
Presence of a pulpy or hard fruit that contains the developing embryonic structure of sporophytic nature, which arises from the gametophyte during the alternation of generations.

3. Male flowers
Female Flowers
Female Flowers Magnified

4. II. Angiosperms’ Evolutionary Timeline
Angiosperms arose during the Mesozoic era, according to the fossil record
During the disappearance of the greatest concentration of cycadeoids, angiosperms began differentiating and becoming more numerous during the end of the era.
They continued to spread and further differentiated as animal pollinators became adapted to specific angiosperm species.
D. This continued with the greater diversity of animal
differentiation as it evolved simultaneously.

5. III. Parts of a Flower

6. Parts of a Flower..(Cont.)
Petals – showy part of the flower
Sepals – green bud covering over flower
Stamen – male part of the flower
Anther – pollen head
Filament – stalk that holds up the anther
Pistil - female part of the flower
Stigma – platform where pollen lands
Style – stalk that holds up the stigma
Ovary – contains the ovules
Ovule – structure which develops into embryos in the form of seeds

7. Stamens from an Amaryllis
Anther
Filament

8. Female Flower Parts
Style
Stigma
Ovary
(Squash)

9. Typical Fruits
Apple
Orange
Tomato
Pepper

10. More Fruits you probably didn’t suspect!
Cashew
Walnut
Chestnut
Acorn

11. Okra
Squash
Even More Fruits!
Corn
Cucumber

12. Fruit
The Stem attaches the flower and then the fruit to the branch it develops on.
Stem

13. Monoc0ts vs. Dicots Monocots Dicots Flower parts in multiples of 3
Parallel venation
Vascular bundles arranged throughout stem
One cotyledon (seed leaf)
Flower parts : Multiples of 4 or 5
Net venation
Vascular bundles mostly around edge of stem
Two cotyledons (seed leaves)
How many petals here?
Three!
How many petals here?
Five!

15. Typical monocots
Lily
Grasses
Palm Trees
Wheat
Orchids

16. Typical dicots
Oaks
Roses
Buttercups
Hibiscus
Red Maple