1. The Pileus (Cap): This is the top, umbrella-like portion of the fruiting body. It is responsible for producing and releasing spores.

2. The Stipe (Stalk): This is the supporting structure of the fruiting body, connecting the pileus to the substrate. It helps to elevate the pileus, allowing for better spore dispersal.

However, some mushrooms may lack a distinct stipe, and other parts, such as the gills or pores, can be equally important for spore production and dispersal.