In pteridohytes, gametophytes is called `:`

Options

A. protonema
B. prothallus
C. leafy
D. dioecious

Answer

To answer the question "In pteridophytes, gametophytes is called:", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Pteridophytes**:
- Pteridophytes are the first vascular plants that possess vascular tissues, specifically xylem and phloem. They are primarily terrestrial plants.

2. **Identifying Gametophytes**:
- In the life cycle of pteridophytes, the gametophyte stage is crucial. Gametophytes are the haploid phase that develops from spores produced by the sporophyte.

3. **Characteristics of Pteridophyte Gametophytes**:
- The gametophytes in pteridophytes are typically small, multicellular, and free-living. They are mostly photosynthetic and have a thalloid structure.

4. **Naming the Gametophyte**:
- The specific term used to refer to the gametophyte in pteridophytes is "prothallus." This structure is significant as it bears the reproductive organs.

5. **Conclusion**:
- Therefore, the correct answer to the question is that in pteridophytes, gametophytes are called **prothallus**.

### Final Answer:
In pteridophytes, gametophytes are called **prothallus**.

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