Cruciform corolla is that where

Options

A. petals are arranged diagonally
B. one petal ovarlaps another
C. there are only two petals
D. petals form a bell shaped structure

Answer

### Step-by-Step Solution:

1. **Understanding Corolla**:
- The corolla is the collective term for the petals of a flower. It is the part of the flower that is often colorful and attracts pollinators.

2. **Defining Cruciform Corolla**:
- A cruciform corolla is characterized by having multiple petals, specifically four petals. These petals are arranged in a cross shape or diagonal pattern.

3. **Identifying the Family**:
- The cruciform corolla is typically found in the Brassicaceae family, which is also known as the mustard family.

4. **Analyzing the Options**:
- The first option states that the petals are arranged diagonally, which is correct for a cruciform corolla.
- The second option mentions that one petal overlaps another, which is incorrect as a cruciform corolla has four distinct petals.
- The third option suggests that the petals are formed in the shape of a bell, which is also incorrect because the petals are arranged in a cross shape.

5. **Conclusion**:
- Based on the analysis, the correct answer is that in a cruciform corolla, the petals are arranged diagonally (option number 1).