Question

Epiphytes like Vanda, develop special layer of absorptive tissue velamen consisting of 4 or 5 layers of long polygonal cells. Velamen is formed by

• A. Prop roots
• B. Stem
• C. Clinging roots
• D. Hanging roots

Answer 1

The correct option is D Hanging roots

The adventitious roots found in the epiphytes are known as the epiphytic root. These roots hang freely in the air and absorb the moisture from the air by a special type of tissue called as velamen. Epiphytic plants are sometimes called as air plants because they do not have roots in the soil e.g., Vanda. Hence, the correct option is D.