Topic Content:
- Xerophytes
- Mesophytes
- Hydrophytes
Xerophytes:
These are plants that live in areas of prolonged drought in their habitat.
Adaptations:
1. Leaves are reduced to tiny sheaths at the nodes e.g. Casuarina to avoid loss of water by transpirationPlants absorb a lot of water and transpiration is a means by which excess water is removed More.
2. The presence of sunken stomata that lie in the grooves of the upper surface e.g. marram grass, reduces the rate of transpiration.
3. The leaves are modified into thorns to reduce loss of water through transpiration e.g. cactus.
4. The presence of thick waxy cuticles on the surface of leaves reduces the loss of water through transpiration.
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