Phyllopodium occurs in

Options

A. Cotyledons
B. Fern leaf
C. Scale leaf
D. Bract.

Answer

To determine where phyllopodium occurs, we need to analyze the given options one by one.

### Step-by-Step Solution:

1. **Understanding Phyllopodium**:
- Phyllopodium is defined as the axis of a leaf. It refers to the part of the leaf that connects the leaf blade to the stem.

2. **Analyzing the Options**:
- **Option A: Cotyledons**:
- Cotyledons are the embryonic leaves found in seed-bearing plants. Since they are not fully matured leaves, they do not exhibit a distinct phyllopodium. Thus, this option is incorrect.

- **Option B: Fern Leaf**:
- Fern leaves, also known as fronds, are fully matured leaves. In ferns, the phyllopodium is clearly visible as it forms the main axis of the leaf. Therefore, this option is correct.

- **Option C: Scale Leaf**:
- Scale leaves are small, modified leaves that are typically colorless and do not have a prominent phyllopodium. Hence, this option is also incorrect.

- **Option D: Bract**:
- A bract is a modified leaf that often accompanies flowers. Similar to scale leaves, bracts do not have a visible phyllopodium. Therefore, this option is incorrect as well.

3. **Conclusion**:
- After analyzing all the options, the only correct answer is **Option B: Fern Leaf**, where phyllopodium is present.

### Final Answer:
Phyllopodium occurs in **fern leaf**.