APPENDIX XI 745 



Cap I to 1 J^ inches broad; stem 2 to 3 inches long. 



This species is much less common in its occurrence than Cortinarius cinnamomeus, 

 but is distinctive because of its entire blood-red color. 



Cortinarius violaceus {Edible) 



Cap convex, when expanded almost plane, dry with hairy tufts or scales, dark 

 violet; flesh somewhat violaceous; gills distant, rather thick and broad, rounded or 

 deeply notched at apex of stem, narrowed at margin of cap, at first violaceous, later 

 brownish-cinnamon; stem fibrillose, solid, bulbous, colored like cap. 



Cap 2 to 4 inches broad; stem 3 to s inches long. 



This very attractive species is at first a uniform violet, but with age the gills 

 assume a cinnamon hue. The plants appear in woods and open places during the 

 summer and fall, generally solitary, but often in considerable numbers. It is 

 esteemed as one of the best edible species. 



Agamctjs 



The genus Agaricus is characterized by brown or blackish spores with a purplish 

 tinge and by the presence of a ring. The cap is mostly fleshy and the gills are free 

 from the stem. The genus is closely related by Stropharia, but separated from it 

 by the free gills and the noncontinuity of the stem and the cap. The species of 

 Agaricus occur in pastures, meadows, woods, and manured ground. All are edible, 

 but certain forms are of especially good flavor. Bright colors are mostly absent 

 and white or dingy brown shades predominate. 



Agaricus arvensis. Horse or Field Mushroom (Edible) 



Cap convex, bell-shaped, then expanded, when young floccose or mealy, later 

 smooth, white or yellowish; flesh white; gills white to pink, at length blackish-brown, 

 free, close, may be broader toward the stem; stem stout, hollow or stuffed, may be 

 slightly bulbous, smooth; ring rather large, thick, the upper part white, membrana- 

 ceous, the lower yellowish and radially split. 



Cap 3 to s inches broad; stem 2 to 5 inches high, 4 to 10 lines thick. 



Agaricus arvensis is to be found in fields, pastures, and waste places. It is closely 

 related to the ordinary cultivated mushroom, but difiers in its larger size and double 

 ring. It is an excellent edible species, the delicacy of flavor and texture largely 

 depending, like other mushrooms, upon its age. 



Agaricus campestris. Common or Cultivated Mushroom (Edible) 



■Cap rounded, convex, when expanded nearly plane, smooth, silky floccose or 

 squamulose, white or light brown, squamules brown, margin incurved; flesh white, 

 firm; gills white in the button stage, then pink, soon becoming purplish-brown, dark 

 brown, or neariy black, free from the stem, rounded behind, subdeliquescent; stem 

 white subequal, smooth or nearly so; veil sometimes remaining as fragments on the 

 margin of cap; ring frail, sometimes soon disappearing. 



