When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

Options

A. Twisted
B. Valvate
C. Vexillary
D. Imbricate

Answer

To answer the question "When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as," we need to understand the concept of estivation in flowering plants. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding Estivation**:
- Estivation refers to the arrangement of sepals and petals in a flower bud before it opens. It describes how these floral parts are positioned relative to each other.

2. **Identifying Types of Estivation**:
- There are several types of estivation, including:
- **Twisted Estivation**: Margins of one petal or sepal overlap the margins of the adjacent petal or sepal in a twisted manner.
- **Valvet Estivation**: Margins of sepals or petals touch each other but do not overlap.
- **Imbricate Estivation**: Margins of sepals or petals overlap each other but in a specific direction.
- **Vexillary Estivation**: A specific arrangement where one large petal overlaps two smaller lateral petals.

3. **Analyzing the Question**:
- The question specifies that the margins of sepals or petals overlap without any particular direction. This description matches the concept of **Imbricate Estivation**.

4. **Conclusion**:
- Therefore, when the margins of sepals or petals overlap one another without any particular direction, the condition is termed as **Imbricate Estivation**.

### Final Answer:
The correct answer is **Imbricate Estivation**.