Identify the type of root marked as ‘X’ in the given picture and w

1.	Identify the type of root marked as ‘X’ in the given picture and write a short note on it.
Answer» Epiphytic roots: 1. Epiphytic plants like Vanda, Dendrobium grow on branches of trees in dense rain forests and are unable to obtain moisture from soil. 2. Such plants produce epiphytic roots which hang in the air. 3. The roots are provided with a spongy membranous absorbent covering of the velamen tissue. 4. The cells of velamen tissue are hygroscopic and have porous walls, thus they can absorb moisture from air. 5. Epiphytic roots can be silvery white or green and are without root cap.

Identify the type of root marked as ‘X’ in the given picture and write a short note on it.

Answer»

Epiphytic roots:

1. Epiphytic plants like Vanda, Dendrobium grow on branches of trees in dense rain forests and are unable to obtain moisture from soil.

2. Such plants produce epiphytic roots which hang in the air.

3. The roots are provided with a spongy membranous absorbent covering of the velamen tissue.

4. The cells of velamen tissue are hygroscopic and have porous walls, thus they can absorb moisture from air.

5. Epiphytic roots can be silvery white or green and are without root cap.