Botanical name of peat moss if
Or
Which of the following is responsible for peat formation

Options

A. Sphagnum
B. Riccia
C. Funaria
D. Marchantia.

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the botanical name of peat moss and which organism is responsible for peat formation.

2. **Identifying Peat Moss**: Peat moss is a type of moss that plays a significant role in the formation of peat, which is a type of soil made up of partially decomposed organic matter.

3. **Recognizing the Options**: The options provided are:
- a. Sphagnum
- b. Eryxia
- c. Phanaria
- d. Marchantia

4. **Identifying the Correct Answer**: Among the options, Sphagnum is the correct answer. Sphagnum moss is known for its ability to retain water and is primarily responsible for the formation of peat in bogs.

5. **Conclusion**: Therefore, the botanical name of peat moss is **Sphagnum** and it is the organism responsible for peat formation.

### Final Answer:
The botanical name of peat moss is **Sphagnum** (Option A).

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