Class XI Practical: Morphology - Study of Phyllotaxy, Leaf Types, Venation, etc.

Objective

To observe and identify different patterns of phyllotaxy, types of leaves (simple/compound), and venation patterns in various plant specimens.

Guidelines

1. Specimen Collection: Collect diverse plant specimens showing different arrangements of leaves, leaf types, and venation patterns.
2. Phyllotaxy: Observe the arrangement of leaves on the stem and identify:
   • Alternate: (e.g., China rose, mustard)
   • Opposite: (e.g., Guava, Calotropis)
   • Whorled: (e.g., Alstonia)
3. Leaf Types: Examine leaves and distinguish between:
   • Simple Leaf: (e.g., Mango, Guava)
   • Compound Leaf: (e.g., Neem, Rose) - further classify as pinnately or palmately compound.
4. Venation: Observe the arrangement of veins and veinlets in the leaf lamina and identify:
   • Reticulate Venation: (e.g., Dicot leaves like peepal, mango)
   • Parallel Venation: (e.g., Monocot leaves like grass, banana)

Expected Outcome

Ability to accurately identify and classify phyllotaxy patterns, leaf types, and venation patterns in different plants.