Leaves in ferns are large compound and of megaphyllous type.

Explanation

**Step-by-Step Solution:**

1. **Understanding Fern Leaves**: Ferns are a type of vascular plant that are known for their unique leaf structure. The leaves of ferns are referred to as "fronds."

2. **Definition of Megaphyllous**: The term "megaphyllous" refers to leaves that are large and compound. In ferns, the fronds are characterized by their significant size and complexity.

3. **Characteristics of Fern Leaves**: Fern leaves (fronds) are large and have a complex structure, which distinguishes them from other types of leaves.

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