Noun
fruit body (plural fruit bodies)
Synonym of fruiting body
As a result, for most mushrooms, if the cap is cut off and placed gill-side-down overnight, a powdery impression reflecting the shape of the gills (or pores, or spines, etc.) is formed (when the fruit body is sporulating). Source: Internet
Others, such as Rolland, favor late picking and the added fruit body that comes with a little bit of over-ripeness. Source: Internet