Gill fungi have gills under their caps -- the thin, vertical items beneath the reddish mushroom cap shown at the left. In most side views of mushroom caps you can't see the gills as nicely as in the photo, but here a critter has nibbled the cap's rim so that it no longer folds over the gills, hiding them. Gills radiate from a mushroom's stem, is better see in photos below. Millions of spores are produced on these gills. The spores fall downward and then are spread elsewhere by the