Q.Enumerate the anatomical adaptations of xerophytes.

Step 1. Epidermis and cuticle: xerophytes have a multilayered epidermis with a heavy cuticle covering the aerial parts, which forms a strong physical barrier against water loss.

Step 2. Hypodermis: a well-developed hypodermis with sclerenchymatous (thick-walled, mechanically strong) tissue lies just beneath the epidermis, adding both mechanical support and a further barrier layer.

Step 3. Stomata: stomata are sunken into pits and confined to the lower epidermis only, often lined with hairs inside the pit — this traps a layer of still, humid air right around the stomatal pore, sharply reducing the rate of water vapour diffusing out. In some succulent species, stomata are additionally scotoactive, opening at night and closing during the day, to avoid losing water during the hottest, driest part of the daily cycle.

Step 4. Vascular tissue: vascular bundles are well developed, each wrapped in a several-layered bundle sheath, giving efficient, well-protected internal water transport.

Step 5. Mesophyll: the mesophyll is clearly differentiated into palisade and spongy parenchyma, much as in an ordinary leaf, but often more compact. …

Work outward-to-inward through xerophyte leaf/stem anatomy — cuticle/epidermis, hypodermis, stomata, vascular t …

• Listing morphological adaptations (spines, phylloclades, reduced leaves) instead of purely anatomical (internal, tissue-level) …