Which of the following is not the modification of leaf?

Options

A. Tendril in Antigonon
B. Tendril in Clematis
C. Tendril in Gloriosa
D. Tendril in Nepenthes

Answer

To determine which of the following options is not a modification of a leaf, we will analyze each option provided:

1. **Tendril in Antigone**: In this plant, the leaf is modified into a tendril, which is a structure that helps in climbing. This is indeed a modification of a leaf.

2. **Tendril in Clematis**: Similar to Antigone, the leaves of Clematis are also modified into tendrils to assist in climbing. This is also a modification of a leaf.

3. **Tendril in Clover Slug**: Again, in this case, the leaves are modified into tendrils, which serve the same climbing function. This is a modification of a leaf.

4. **Tendril in Epanthus**: In this case, the floral bud is modified into a tendril. This indicates that it is not a modification of the leaf but rather of the floral structure.

Based on the analysis, the option that is not a modification of a leaf is **Tendril in Epanthus**.

### Step-by-Step Solution:
1. **Identify the options**: List the modifications provided in the question.
2. **Analyze each option**: Determine if each option represents a modification of a leaf or not.
3. **Find the exception**: Identify which option does not fit the criteria of being a leaf modification.
4. **Conclude**: State the option that is not a modification of a leaf.