Choose the incorrect statement .

Options

A. Sterile stamen is called staminode.
B. The arrangement of ovules inside the ovary is called placentation
C. Flower of Pisum sativum is actinomorphic
D. Flower of Datura is actinomorphic

Answer

To solve the question "Choose the incorrect statement," we will analyze each option provided in the question step by step.

### Step 1: Analyze the first statement
**Statement:** "Sterile stamen is called staminode."
- **Explanation:** In botany, a staminode is indeed a sterile or abortive stamen that does not produce pollen. This statement is correct.

### Step 2: Analyze the second statement
**Statement:** "The arrangement of ovules inside the ovary is called placentation."
- **Explanation:** The arrangement of ovules within the ovary is referred to as placentation. This involves how ovules are attached to the ovary wall. This statement is also correct.

### Step 3: Analyze the third statement
**Statement:** "Flower of Pisum sativum is actinomorphic."
- **Explanation:** The flower of Pisum sativum (the pea flower) is not actinomorphic; it is zygomorphic, meaning it has bilateral symmetry. This statement is incorrect.

### Step 4: Analyze the fourth statement
**Statement:** "Flower of Dhatura is actinomorphic."
- **Explanation:** The flower of Dhatura does possess actinomorphic symmetry, which means it has radial symmetry and can be divided into three or more identical parts. This statement is correct.

### Conclusion
After analyzing all the statements, we find that the incorrect statement is: "Flower of Pisum sativum is actinomorphic."

### Final Answer
The incorrect statement is: **"Flower of Pisum sativum is actinomorphic."**

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