Plant preservation centre in which the colected plants are preserved as dry specimens, according to any recognised system of classification is called

Options

A. Flora
B. Herbarium
C. Museum
D. Botanical garden

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the name of a plant preservation center where collected plants are preserved as dry specimens according to a recognized classification system.

2. **Analyzing the Options**:
- **Flora**: This term refers to the plant life occurring in a particular region or time, not a preservation center.
- **Herbarium**: This is a collection of pressed, dried, and preserved plants that are mounted on paper sheets, properly labeled, and systematically arranged for study and reference.
- **Museum**: A museum is a building for preserving and exhibiting inanimate objects, which does not specifically pertain to plant specimens.
- **Botanical Garden**: This is a place where live plants are grown for scientific study and education, but it does not focus on preserving dry specimens.

3. **Identifying the Correct Answer**: Based on the definitions and functions of each option, the correct answer is **Herbarium**. This is the only option that specifically refers to a center for preserving dry plant specimens.

4. **Conclusion**: The plant preservation center where collected plants are preserved as dry specimens according to a recognized system of classification is called a **Herbarium**.