82 NEW YORK STATE MUSEUM 



separate it from the following one. Fries included in it a few 

 species with the margin of the pileus even or obscurely striate. 



KEY TO THE SPECIES 



Pileus even or but slightly striate on the margin I 



Pileus distinctly striate on the margin 4 



I Taste mild ■ 2 



I Taste acrid consobrina 



2 Lamellae distant earlei 



2 Lamellae close 3 



3 Lamellae broad, rounded behind, vv^hite cyanoxantha 



3 Lamellae rather narrow, whitish vesca 



4 Pileus brown or brownish sororia 



4 Pileus yellowish, reddish yellow or subochraceous 5 



5 Pileus roughened with granules granulata 



5 Pileus smooth 6 



6 Pileus stramineous or subochraceous foetens 



6 Pileus reddish yellow foetentula 



Russula vesca Fr. 



EDIBLE RUSSULA 



Pileus fleshy, rather firm, nearly plane or centrally depressed, 

 viscid, venosely rugulose or radiately wrinkled with a spreading, 

 even margin, reddish or flesh color, darker in the center, flesh white, 

 taste mild ; lamellae thin, close, adnate, unequal, whitish ; stem solid, 

 compact, rigid, white ; spores globose, white, .0003-.0004 of an inch 

 broad. 



Pileus 2-4 inches broad; stem 1-2 inches long, 4-8 lines thick. 



Woods. Warren county. August. Rare. 



The species may easily be recognized by the minutely radiately 

 wrinkled or rugulose character of the upper surface of the pileus. 

 The wrinkles or veins commonly radiate toward the margin but they 

 often anastomose in a reticulate manner. In the typical form the 

 pileus is pinkish or red flesh color. In our specimens it is mostly 

 greenish, but darker or blackish green in the center where it is also 

 in some specimens varied with reddish or brownish red hues. The 

 European plant is edible as indicated by the name. I have not 

 tested our plant. 



Russula cyanoxantha (Schaeff.) Fr. 



YELLOWISH BLUE RUSSULA 



Pileus compact, convex becoming centrally depressed or subin- 

 fundibuliform, viscose, variable in color, even on the margin or 



