Multiple choice

_______ is the modification of petiole.

  1. Leaf Spines

  2. Phyllodes

  3. Scale Leaves

  4. Leaf Tendrils

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A phyllode is the petiole or rachis of a leaf which is modified into a green flat structure for the purpose of photosynthesis. In such a leaf, the lamina is poorly developed. In Acacia melanoxylon, the petiole is flattened, green and becomes a phyllode. The leaflets and secondary rachii drop off.