NUTRITION: MUSHROOMS. 



327 



Agaricus campestris. 



Fig. 430. 

 View of under side showing stem, annulus, gills, and margin of pileus. 



Fig. 431. 



Agaricus campestris. Longitudinal section through stem and pileus. a, pileus; b, portion 

 of veil on margin of pileus ; c, gill ; /) fragment of aunulus ; e, stipe. 



