The leaf that bears spores in fern is known as ___________ .

Explanation

To answer the question, "The leaf that bears spores in fern is known as ___________," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ferns**:
- Ferns are a type of vascular plant that reproduce via spores instead of seeds. They belong to the group known as Pteridophytes.

2. **Identifying the Leaf Type**:
...