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Presentation of class 4 on flower
1. By:Bilal Moiz, Abbas Ali, Murtaza
Soomro,M.Wadood and Ahmed Iqbal
2. Petals are modified leaves that surround the
reproductive parts of flowers. They are often
brightly colored or unusually shaped to attract
pollinators. Examples of plants in which the
term tepal is appropriate include genera such as
Aloe and Tulipa.
3. The petal of the flower is observed
under the digital microscope.
5. Together, all of the petals of a flower are
called a corolla.
Petals are modified leaves that surround
the reproductive parts of flowers.
They are often brightly colored or
unusually shaped to attract pollinators.
7. The sepals are the green-leaf like
structures that enclose and protect
the developing flower. It is a modified
leaf in the outermost whorl calyx of a
flower.
The calyx (which the sepals are the
outer part of) protects the bud before
it opens. The sepal allows the calyx to
open and provides rigid support for the
petals and reproductive organs of the
flower.
13. Pistil one of the four basic parts of a flower.
The pistil is usually called the female.
A flower may have one or more simple pistils
more simple pistils.
The stigma is often sticky or hairy, to retain the
pollen.
14. A flower may have one or more pistils which
consist of a basal portion called the ovary
which contains the embryo seeds or ovules and
area where the pollen is received called the
stigma. Often the stigma may be borne on a
stalk-like structure called the style. The pistil
consists of ovule-bearing basic units called
carpels.
15. The ovules observed under the digital
microscope