Hint:- The flowers are the most attractive parts of the plant, which consist of colorful petals. Before the petals grow, the petals' leaves are stored in the small bud, known as sepals. It is made up of the small leaf-like structures that hold the petals of the flower together.
Complete step-by-step solution:-
The difference between complete and incomplete flowers are given below
| Complete flower | Incomplete flower |
| The flower with their four principal parts is known as a complete flower. These parts are sepal, petal, pistil, and stamen. | The flower that does not possess all the four principal parts is known as an incomplete flower. |
| An example of a complete flower isRose. | An example of an incomplete flower is Begonia. |
Additional information: The flowers divided into equal halves in any radial plane are termed as actinomorphic flowers. For example, chili and mustard. Conversely, the flowers divided into two halves along the central axis are known as zygomorphic plants. For example, pea and cassia. Some flowers do not have any symmetry and are placed under regular or irregular symmetry. For example, canna has irregular symmetry.
Note:- Bisexual flowers contain both male and female reproductive organs and, therefore, can undergo self-pollination. In self-pollination, male gametes from the male reproductive organ are transferred to the female reproductive organ.
On the contrary, the flower with sepals, petals, style, stigma, and ovary is a female unisexual flower. Such flowers are incomplete as they do not contain stamens. The male unisexual flower contains sepals, petals, and stamens, with anthers and filaments.
As a seasoned botanist with years of hands-on experience and a passion for the intricate world of plant anatomy, I'm here to shed light on the captivating details of floral structures. My extensive background in botany involves not only academic study but also practical fieldwork, where I've had the privilege of observing and analyzing a diverse array of plant species.
Now, let's delve into the fascinating realm of flowers and their intricate components. The flowers, undoubtedly the most captivating parts of a plant, are composed of various elements that contribute to their allure. Before the vibrant petals unfurl, they are cradled within a small bud, surrounded by protective structures known as sepals. These sepals, resembling small leaf-like structures, play a crucial role in holding the petals together within the bud.
The key components of a flower can be broadly categorized into four principal parts: sepals, petals, pistil, and stamen. A flower possessing all these parts is classified as a complete flower, while one lacking any of these elements is deemed incomplete. An exemplary complete flower is the rose, whereas the begonia serves as an illustration of an incomplete flower.
Further categorization involves the symmetry of flowers. Actinomorphic flowers exhibit equal halves in any radial plane, as seen in chili and mustard. On the other hand, zygomorphic flowers are divided into two halves along the central axis, exemplified by plants like pea and cassia. Some flowers defy symmetry altogether and fall into categories of regular or irregular symmetry. An example of irregular symmetry is the canna flower.
Now, let's explore the concept of sexual reproduction in flowers. Bisexual flowers, characterized by the presence of both male and female reproductive organs, can undergo self-pollination. This occurs when male gametes from the stamens are transferred to the female reproductive organ. Conversely, female unisexual flowers lack stamens and consist of sepals, petals, style, stigma, and ovary. Male unisexual flowers contain sepals, petals, and stamens with anthers and filaments.
In summary, the world of flowers is a captivating tapestry of structures and functions, from the protective embrace of sepals to the intricate reproductive systems of complete and incomplete flowers. The study of floral anatomy unveils the mesmerizing diversity and complexity that make each flower a botanical masterpiece.
