Leucosporse 



wholly with R. emetica in structure and stature, as well as in the acrid Russuia. 

 taste ; it differs however in the stem being slightly recticulato-wrinkled, 

 white becoming cinereous, in the adnate pellicle of the pileus, in the 

 margin remaining for a long time even (remotely striate, but not tuber- 

 cular, only when old), and in the gills being rounded behind and be- 

 coming pale. The color of the pileus is constant. The gills remain 

 free and do not exude drops. Fries. 



Cap 2-4 in. across. Stem 2-3 in. long, up to % in. thick. 



Spores papillose, 7//, W.G.S., 8x9/1, Massee. 



Frequent in woods. July to October. 



Not as common as R. emetica, yet frequently found, usually solitary, 

 at times gregarious. It is quite peppery, but loses pepperiness in cook- 

 ing. Myself and others have frequently eaten it. 



R. ci'trina Gillet citrina, citron colored. Mild. Pileus 2-3 in. 



across, slightly fleshy at the disk, margin thin; convex then more or 

 less expanded and slightly depressed, rather viscid when moist, smooth, 

 slightly wrinkled at the margin when old, bright lemon-yellow, color 

 usually uniform, sometimes paler at the margin, occasionally with a 

 greenish tint, center of pileus at length becoming pale-ochraceous ; pel- 

 licle separable. Gills slightly decurrent, broadest a short distance from 

 the margin, and gradually becoming narrower towards the base, forked 

 at the base and also sometimes near the middle, white, \% lines deep 

 at broadest part. Stem 23 in. long, about 4 lines thick, equal or 

 slightly narrowed at the base, slightly wrinkled, straight or very slightly 

 waved, solid. 



Spores subglobose, echinulate, 8/* diameter. 



In woods. 



Known by the clear lemon-yellow or citron-colored pileus and the 

 persistently white gills and stem. The taste is mild at first, but be- 

 comes slightly acrid if kept in the mouth for a short time. Massee. 



R. citrina can hardly be classed among the acrid species. The taste 

 is slightly of cherry-bark and disappears in cooking. It is usually found 

 in patches which contain ten to twenty individuals. It is a species of 

 fair quality. 



R. fra'gilis Fr. fragile. Pileus I iK in. broad, rarely more, flesh- 

 color, changing color, very thin, fleshy only at the disk, at the first con- 



203 



