Question

describe male reproductive whorl of flower

Answer 1

The Four Whorls of a Flower The parts and functions of a flower are much more detailed than they might appear at first glance. If you look at a flower from the top, you will be able to distinguish between four "whorls," or circular sections that share a common center. The outer whorl is called the calyx and consists of the sepals. The next whorl is the Corolla and consists of the petals. The two innermost whorls are the stamens and the carpels, and those contain the male and female reproductive parts of the flower respectively.

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Whorl #1: The CalyxThe calyx, which is the outermost whorl of a flower, protects the inner whorls, especially when the flower is in its bud stage. The calyx is made up of sepals, which are two small green structures at the flower's base that look like tiny leaves. Whorl #2: The CorollaThe second whorl of the flower is the Corolla, which is composed of the flower's petals. The petals serve two purposes: to protect the reproductive organs of the flower and to attract pollinators. Because of this second purpose, they are usually brightly colored and scented so that animals and insects will come close to them and move around the flower's pollen. The first two whorls of the flower -- the calyx and the corolla -- are collectively called the perianth. Whorl #3: The StamensThe third whorl of a flower is the stamen, the male reproductive part. The stamen is made of a thin vertical thread-like structure called a filament topped with a circular or oblong structure called an anther. The anther produces pollen, which is the male contribution to the reproduction process in plants. Whorl #4: The CarpelsAt the center of the flower is the fourth whorl -- the carpels, which contain the pistil of the flower. The pistil is the plant's female reproductive organ, which is composed of three parts: the ovary, the style, and the stigma. The ovary contains the eggs, or ovules, of the plant, and when the ovules are fertilized, the ovary sometimes turns into a fruit to house the seed. The top of the ovary leads to a vertical structure called a style, which supports the stigma. The stigma catches grains of pollen that the wind or pollinators disperse, and the pollen grains travel down the style to the ovary. Other Parts Their FunctionsOther, less commonly defined parts of a flower include the pedicel, or the stalk of the flower; the nectary, which secretes nectar; and the floral axis, a term which describes the section of the flower containing the four whorls. Understanding these lesser-known parts of a flower and their functions is an important part of understanding why a flower is an important part of a plant.

Answer 2

Flower is a group of reproductive organs of the flowering plants, which develops fruits and seeds and thus helps in forming new offspring of the plant. From morphological point of view flower is a highly condensed and modified shoot. Its function is reproduction.



In a typical flower there are four types of structures called floral leaves. These arc arranged in four whorls. Floral leaves are arranged on the swollen upper parts of flower stalk. The flower stalk is called pedicel and the swollen upper part is called Thalamus. In the thalamus are present nodes and highly reduced internodes. Floral leaves are borne on the nodes in whorls.