Answer:
leaves is the correct answer.
Step-by-step explanation:
The leaves in lycophytes are called microphylls.
Microphyll is a type of leaf, present in horsetails and clubmosses and have unbranched vein which supplies water to the leaves and nutrient to the plant.
lycophytes are seedless vascular plant also called fern allies, they have unique leaves which is called microphylls.