Outer covering of epiphytic root is
(a) Osmophore
(b) Rhizophore
(c) penumatophore
(d) Velamen

Options

A. Osmophore
B. Rhizophore
C. penumatophore
D. Velamen

Answer

To determine the outer covering of epiphytic roots, we will analyze each option provided in the question:

1. **Option A: Osmophore**
- Osmophores are specialized structures that produce floral scents. They are not related to the outer covering of roots. Therefore, this option is incorrect.

2. **Option B: Rhizophore**
- Rhizophores are downward-growing, leafless shoots that help anchor the plant. They are not roots and do not serve as an outer covering for roots. Hence, this option is also incorrect.

3. **Option C: Pneumatophore**
- Pneumatophores are specialized roots that grow upwards and help in gas exchange, particularly in waterlogged environments. However, they are not the outer covering of roots. Thus, this option is incorrect as well.

4. **Option D: Velamen**
- Velamen is a spongy, multiple epidermis that covers the roots of epiphytic and semi-epiphytic plants. It helps in moisture absorption and is specifically adapted for the environment in which these plants grow. Therefore, this option is correct.

**Final Answer: (d) Velamen**

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