Protonema is found in the life cycle of

Options

A. Riccia
B. Funaria/Moss
C. Dryopteris
D. Spirogyra.

Answer

To answer the question "Protonema is found in the life cycle of," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Protonema**:
- Protonema is a thread-like chain of cells that represents an early stage in the life cycle of certain plants, particularly mosses.

2. **Identifying the Options**:
- The options given are:
1. Dracaea
2. Funaria (Moss)
3. Dryopteris
4. Spirogyra

3. **Analyzing Each Option**:
- **Dracaea**: This is a genus of flowering plants and does not have a protonema stage.
- **Funaria**: This is a type of moss, and mosses are known to have a protonema stage in their life cycle.
- **Dryopteris**: This is a genus of ferns, which do not have a protonema stage.
- **Spirogyra**: This is a green algae and does not have a protonema stage.

4. **Conclusion**:
- Since Funaria is a moss and is known to produce protonema as part of its life cycle, the correct answer is **option 2: Funaria**.

### Final Answer:
Protonema is found in the life cycle of **Funaria**.

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