Non-vascular archegoniates are

Options

A. Thallophyta
B. Pteridophyta
C. Bryophyta
D. Gymnosperms

Answer

To answer the question "Non-vascular archegoniates are:", we will analyze the options provided and determine which group fits the description of non-vascular archegoniates.

### Step-by-Step Solution:

1. **Understanding Archegoniates**:
- Archegoniates are plants that produce archegonia, which are the female sex organs involved in sexual reproduction.

2. **Defining Non-Vascular Plants**:
- Non-vascular plants are those that do not have vascular tissues (xylem and phloem) for the transport of water and nutrients.

3. **Analyzing the Options**:
- **Option A: Thalophyta**:
- This group includes algae and fungi, which are not typically classified as archegoniates.
- **Option B: Pteridophyta**:
- This group includes ferns and has vascular tissues, so it cannot be classified as non-vascular.
- **Option C: Bryophyta**:
- This group includes mosses and liverworts, which are non-vascular plants and do produce archegonia.
- **Option D: Gymnosperms**:
- Gymnosperms are seed-bearing plants that have vascular tissues, so they do not fit the criteria.

4. **Conclusion**:
- The only group that is both non-vascular and produces archegonia is Bryophyta. Therefore, the correct answer is **Option C: Bryophyta**.

### Final Answer:
**Non-vascular archegoniates are called Bryophyta (Option C).**

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