In Nepenthes Khasiana found in Assam/north east India, colourful lid of pitcher is formed by

Options

A. leaf
B. petiole
C. lamina
D. leaf apex

Answer

To answer the question about what forms the colorful lid of the pitcher in Nepenthes khasiana, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Plant**: Recognize that Nepenthes khasiana is a tropical pitcher plant found in Assam, North East India. It is known for its unique structure and adaptations.

2. **Understand the Structure**: The pitcher plant has a specialized leaf structure that forms a pitcher. The pitcher consists of various parts, including the lid, which is colorful and plays a crucial role in attracting insects.

3. **Examine the Lid's Function**: The colorful lid of the pitcher is designed to attract insects. This attraction is essential for the plant's carnivorous feeding mechanism, as it helps lure prey into the pitcher.

4. **Identify the Origin of the Lid**: The lid of the pitcher is specifically formed from the leaf apex. This means that the uppermost part of the leaf undergoes modification to create the colorful structure that serves as the lid.

5. **Conclude the Answer**: Based on the understanding that the colorful lid is a modified part of the leaf, we conclude that the correct answer to the question is that the colorful lid of the pitcher in Nepenthes khasiana is formed by the leaf apex.

### Final Answer:
The colorful lid of the pitcher in Nepenthes khasiana is formed by the **leaf apex**.

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