A tree growing in India Botanical Garden, Sibpur (Howrah, Calcutta) with age over 200 years, circumfernce 404 metres, Prop roots 1600 and whose main stem has decayed is

Options

A. Ficus benghalensis
B. Ficus religliosa
C. Eucalyptus regnans
D. No such tree exists

Answer

To solve the question regarding the tree growing in the Indian Botanical Garden, Sibpur (Howrah, Calcutta), we can follow these steps:

### Step-by-Step Solution:

1. **Identify Key Characteristics of the Tree**:
- The tree is over 200 years old.
- It has a circumference of 404 meters.
- It has 1600 prop roots.
- The main stem has decayed.

2. **Analyze the Characteristics**:
- The age of over 200 years indicates that it is a mature tree.
- A circumference of 404 meters is exceptionally large, suggesting it is a tree known for its extensive trunk and canopy.
- The presence of 1600 prop roots is a significant characteristic, as this is typical of certain types of trees that develop aerial roots for support.

3. **Consider Possible Tree Species**:
- Given the characteristics, we can consider trees known for their longevity and extensive root systems.
- The banyan tree (Ficus benghalensis) is known for its aerial prop roots and can grow to be very large and old.

4. **Confirm the Tree Species**:
- The banyan tree is native to the Indian subcontinent and is known for its large canopy and ability to develop numerous trunks from its aerial roots.
- Therefore, based on the characteristics provided, the tree in question is most likely the banyan tree (Ficus benghalensis).

5. **Conclusion**:
- The correct answer to the question is **Ficus benghalensis**, commonly known as the banyan tree.