Date post: | 29-Dec-2015 |
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Flower Anatomy“You may think of flowers as
decorative objects that brighten the world, but the
presence of so many flowers in the world is visible
evidence of something else – the stunning evolutionary success of angiosperms, or
flowering plants.”
Flower AnatomyFlowers are reproductive
organs that are composed of four kinds of specialized leaves:
1.Sepals2.Petals3.Stamens4.Carpel (sometimes called
the Pistil)
SepalsSepals are the
outermost circle of floral parts.
A. often green and resemble ordinary leaves
B. they protect the flower while it is developing
PetalsPetals are found just inside the
sepals
~ often brightly colored~ attract insects and other pollinators (and people!) to the flower
Reproductive StructuresMany flowers contain both male and female reproductive parts!
~Male parts are the stamen.
~Female parts are the carpel.
Male Parts: StamenThe stamen is composed of 2
parts:
1. Filament: long stalk that supports an anther.
2. Anther: tip of filament where the pollen is located.
Pollen is essentially the sperm of a flower so it is located on the
male part of the flower: the stamen.
Female Parts: CarpelThe Carpel is composed of 3
parts:1. Ovary: base
containing the eggs of a plant
2. Style: the stalk3. Stigma: a sticky
top used to capture pollen.
Plant ReproductionOnce the stigma of the carpel
(female part) is
pollinated by pollen (sperm),
seeds can be made.
Plant ReproductionSeeds can
then be spread by animals or by the wind
to new locations to grow into
new plants!