1
In which of the following plants sunken stomata are found?
- Nerium
- Hydrilla
- Mango
- Guava
Answer
(1) Nerium
Solution
Sunken stomata lie in pits (stomatal crypts) below the level of the epidermis and are often covered by hairs; they reduce the rate of transpiration.
They are a xerophytic adaptation. Nerium (oleander) is a xerophyte whose leaves bear stomata in sunken crypts on the lower surface.
Hydrilla is a submerged hydrophyte (stomata absent or non-functional); mango and guava are mesophytes with normal stomata.
∴ Sunken stomata are found in Nerium.
Answer: (1)
AIPMT 2001