DENDROLOGY

Detailed explanation-1: -The waxy layer on the epidermis of leaves that slows transpiration is known as the cuticle. It’s primarily found in desert plants because it reduces water loss. Cuticle refers to the waxy, translucent upper layer of leaves. It’s a non-cellular protective layer present on the outside of many plants’ epidermis.

Detailed explanation-2: -The correct option is A. Epidermis of leaf. The cuticles are protective, hydrophobic, waxy coverings produced by the epidermal cells of leaves, young shoots and all other aerial plant organs. Cuticles minimize water loss and effectively reduce pathogen entry due to their waxy secretion.

Detailed explanation-3: -Common adaptations to reduce the rate of transpiration include: Thick waxy cuticle: The cuticle cuts down water loss in two ways: it acts as a barrier to evaporation and also the shiny surface reflects heat and so lowers temperature.