The upper surface is covered with a waxy, waterproof cuticle , which serves to reduce water loss from the leaf.
(The upper surface; is covered; with a waxy, waterproof cuticle) (waterproof cuticle; serves; to reduce water loss from the leaf) Context(waterproof cuticle serves,List([42, 75))):(waterproof cuticle; serves to reduce; water loss; from the leaf)
waterproof cuticle serves,List([42, 75))
The upper surface waterproof cuticle waterproof cuticle
is covered serves serves to reduce
with a waxy, waterproof cuticle
to reduce water loss from the leaf
water loss from the leaf