"Heterosporous-Archegoniatae" is a name for:-

Options

A. Ferns
B. Gymnosperms
C. Angiosperms
D. (A) and (B) both

Answer

To solve the question "Heterosporous-Archegoniatae" is a name for which group, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- "Heterosporous" refers to plants that produce two different types of spores: microspores (male) and megaspores (female).
- "Archegoniatae" refers to plants that have archegonia, which are the female reproductive structures.

2. **Identify the Options**:
- The options provided are:
1. Ferns
2. Gymnosperms
3. Angiosperms
4. A and B (which implies both Ferns and Gymnosperms)

3. **Analyze Each Option**:
- **Ferns**:
- Ferns are primarily homosporous, meaning they produce only one type of spore. Therefore, they do not fit the definition of heterosporous.
- **Gymnosperms**:
- Gymnosperms are known to be heterosporous as they produce both microspores and megaspores. They also possess archegonia, making them a suitable candidate for the term "Heterosporous-Archegoniatae."
- **Angiosperms**:
- Angiosperms also produce two types of spores but are not typically referred to as Archegoniatae since they do not have archegonia in their reproductive structures.
- **A and B**:
- This option suggests that both ferns and gymnosperms are heterosporous archegoniatae, which is incorrect since ferns do not fit this classification.

4. **Conclusion**:
- Based on the analysis, the correct answer is **Gymnosperms** as they are the only group among the options that are heterosporous and possess archegonia.

### Final Answer:
The correct answer is **Gymnosperms**.