lOO AGARICINI. 



Gills, nearly free, broad, equal, distant, white, then pallid, 



powdered with the yellow spores. 



Stem, spongy, even, ventricose, white. 



Taste mild, edible. 



This is a very confusing Russula, on account of it assuming so many 

 different colors. I was often deceived with it at first. 



R. nitida. Fr. Shining Russula. 



Pileus, somewhat fleshy, becoming rigid, convex plane, 

 margin tuberculate striate ; flesh white. 



Gills, adnexed, crowded, white, then yellow. 

 Stem, stuffed, soft, white, growing pallid. 

 Acrid, nauseous, poisonous. 

 Common along roadsides throughout the Valley. 



R. atropurpurea. Pk. 



Pileus, at first convex, then centrally depressed, glabrous, 

 dark purple, blackish in the center, the margin even or slightly 

 striate, flesh white, grajdsh or grayish-purple under the 

 separable pellicle, taste mild, odor of the drying plant fetid, 

 very unpleasant. 



Gills, nearly equal, subdistant, sometimes forked near the 

 stem, at first white, then yellowish, becoming brownish where 

 bruised. 



Stem, equal, glabrous, spongy within, white, brownish 

 where bruised. 



Spores, subglobose, minutely rough, pale ochraceous with 

 a salmon tint, .0003 to .0004 inch long. 



Pileus three to four inches broad ; stem two to three inches 

 long, five to eight lines thick. 



Found a number of specimens in Dorney's woods near Allentown. 

 Determined by Prof. C. H. Peck. Mild. 



