282 STRUCTURE AND LIFE HISTORIES 



FIG. 206. A pore-bearing fungus (Polyporus betulinus). Under (fruit- 

 ing) surface, showing the pores. 



f FIG. 207. Giant puffballs (Lycoperdon giganteum Botsch.). Note the 

 size of the four specimens as compared with the egg and fruit in the center. 

 (After W. A. Murrill.) 



