NUTRITION: MUSHROOMS. 331 



shown in fig. 436. Finally, as shown in fig. 437, this veil is 

 ruptured by the expansion of the pileus, and it either clings 



Fig- 436. 

 Agaricus campestris ; nearly mature plants, showing veil still stretched across the gill 

 cavity. 



Fig. 437- 

 Agaricus campestris ; under view of two plants just after rupture of veil, fragments of the 

 latter clinging both to margin of pileus and to stem. 



