Select an incorrect statement wrt. flower.

Options

A. The flower is the reproductive unit in the angiosperms.
B. It is meant for sexual reproduction.
C. A typical flower has four different kinds of whorls arranged successively
D. The swollen end of the thalamus is called peduncle.

Explanation

To solve the question of selecting an incorrect statement with respect to flowers, we will analyze each statement provided:

1. **Statement 1**: "The flower is the reproductive unit in angiosperms."
- **Analysis**: This statement is correct. Flowers are indeed the reproductive structures of angiosperms (flowering plants), facilitating sexual reproduction.

2. **Statement 2**: "The ovules are surrounded by ovary wall."
- **Analysis**: This statement is also correct. In flowering plants, ovules are located within the ovary, which is part of the pistil, and are surrounded by the ovary wall.

3. **Statement 3**: "A typical flower has four different kinds of whorls arranged successively on the swollen end of the stalk."
- **Analysis**: This statement is correct as well. A typical flower consists of four main whorls: calyx (sepals), corolla (petals), androecium (male reproductive parts), and gynoecium (female reproductive parts), arranged on the thalamus (the swollen end of the stalk).

4. **Statement 4**: "The swollen end of the thalamus is called..."
- **Analysis**: This statement is incorrect. The swollen end of the stalk where the flower parts are attached is called the "thalamus," while the "peduncle" refers to the stalk of the flower or inflorescence. Therefore, this statement is misleading or incorrect.

**Conclusion**: The incorrect statement is option number 4.