part of a flower. (with diagram)

Dear Student 

The parts of the flower include
The Pedicel which is just a stalk that holds the flower.
The Receptacle which is a swollen end of the stalk over which the parts of the flower are arranged. It helps in positioning the flower. 
The Sepal is the leaf like structure that encloses the flower. They are responsible for protection of the flower bud . 
The Petals are the colourful leaf like structures that are responsible for attracting the pollinators to the plant. They do not play a role in fertilization. 
The Stamen is the male reproductive structure of the flower. It includes the style which is a stalk that holds the other part of the stamen that is the anther. The anther has sac like structures called as microsporangia where pollen development takes place. Pollen grains that carry the male gamete are released from the anther. 
The Pistil is the female reproductive structure of the flower that has the ovary at the bottom which is a swollen structure that contains ovules within which macrospore development takes place. The style is the stalk that connects the stigma and ovary and the pollen germ cells travel to the ovary through the style. Stigma is the sticky broad structure at the elevated region of the pistil that allows the pollen to sit and form the pollen tube. Its main purpose is to catch the male microspore gametes and is also responsible to filter out the pollen of other species plants. 

Regards

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Peduncle: The stalk of a flower.
Receptacle: The part of a flower stalk where the parts of the flower are attached.
Sepal: The outer parts of the flower (often green and leaf-like) that enclose a developing bud.
Petal: The parts of a flower that are often conspicuously colored.
Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther.
Anther: The part of the stamen where pollen is produced.
Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed.
Stigma: The part of the pistil where pollen germinates.
Ovary: The enlarged basal portion of the pistil where ovules are produced

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