Velamen in Orchids Vanda/epiphytes is a specialised epidermis that helps in

Options

A. guttation
B. absorption of water from soil
C. absorption of moisture from air
D. clinging the weak plant

Answer

**Step-by-Step Text Solution:**

1. **Understanding Velamen**: Velamen is a specialized epidermis found in the roots of epiphytic plants, such as orchids (e.g., Vanda). It is a spongy, multilayered structure that consists of non-living, compact cells.

2. **Structure of Velamen**: The velamen has lignified strips of secondary walls, which contribute to its strength and durability. This structure is crucial for the plant's survival in its natural habitat.

3. **Functions of Velamen**: The primary functions of velamen include:
- **Support**: It provides structural support to the plant.
- **Water Conservation**: It helps in preventing water loss from the plant.
- **Water Absorption**: Velamen plays a significant role in absorbing moisture from the environment, particularly from the air.

4. **Analyzing the Options**: The question provides several options regarding the function of velamen:
- A) Gutation
- B) Absorption of water from soil
- C) Absorption of moisture from air
- D) Clinging to weak plants

5. **Identifying the Correct Option**: Among these options, the most accurate function of velamen is "absorption of moisture from air" (Option C). This is because velamen is adapted to absorb water vapor from the atmosphere, which is essential for epiphytic plants that often grow in humid environments.

6. **Conclusion**: Therefore, the correct answer to the question is **C) Absorption of moisture from air**.

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