Which one of the following is an example of chlorophyllous thallophyte

Options

A. Nephrolepis
B. Volvariella
C. Spirogyra
D. Gnetum.

Answer

To determine which of the following is an example of a chlorophyllous thallophyte, we can follow these steps:

### Step 1: Understand the term "chlorophyllous thallophyte"
- **Definition**: Chlorophyllous thallophytes are simple, non-flowering plants that contain chlorophyll, allowing them to perform photosynthesis. They are typically categorized under algae and some fungi.

### Step 2: Analyze the options provided
- **Option 1: Valvotrix** - This is not a well-known example of a chlorophyllous thallophyte.
- **Option 2: Spirogyra** - This is a genus of green algae known for its filamentous structure and presence of chlorophyll.
- **Option 3: Nitam** - This does not refer to a recognized chlorophyllous thallophyte.

### Step 3: Identify the correct answer
- **Correct Answer**: Spirogyra is the correct example of a chlorophyllous thallophyte. It is a green algae that thrives in freshwater environments and is known for its ability to photosynthesize due to the presence of chlorophyll.

### Conclusion
The answer to the question is **Spirogyra**.

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