POKPHYEOSPOEAE. 



351 



FIGUKES ILLUSTEATINQ THE POBPHYBOSPOBAE. 



Kg. 1, Agaricug campestris, section of portiou of fangus, showing the 

 free gills and the ring surrounding the stem ; about half nat. size ; — 

 Fig. 2, Agaricus comptulus, a fially developed specimen ; nat. size ; — 

 Fig. 3, Siropharia aerugiiiosa ; half nat. size ; — ;Fig. 4, Chitonia rubrioeps, 

 a specimen showing the large yolva at the base of the stem ; nat. size ; — 

 Fig. 5. section of pUeus of same, showing the free gills and the hollow 

 stem ; nat. size ; — Pig. 6, Pihsace Algeriensis, section of a portion of the 

 pUeus, showing the free gills and the tissue of the stem differentiated from 



