GENERA AND SPECIES OF MUSHROOMS 



Cap I to 3 inches broad; hemispheric when young; flat 

 when mature. Dull white, yellowish or rarely reddish-brown. 

 Powdery or flaky surface; fragile. 



Gills free from stem; white; rounded near stem; broad; 

 near together. 



Stem variable; 2 to 3 inches long; slender; cylindric or 

 tapering upward; enlarged at the base; whitish; downy; 

 stuffed or solid; with a very large volva that is more or less 

 lobed. 



Spores white; somewhat elliptical; waxy; 10-12 by 6-7 

 microns in diameter. 



From New England to Alabama and west to Ohio. Its 

 most noticeable feature is the immense cup or volva at base 

 of the stem. Murrill. 



The genus Armillaria 



This is a white-spored genus which has the gills attached 

 to the stem by their inner extremity. The stem usually has a 

 collar but there is no wrapper or cup at the base as in the 

 genera Amanita or Amanitopsis. The stem is fibrous and not 

 easily separable from the substance of the cap, another feature 

 in which this genus differs from Amanita and also from 

 Lepiota. 



Species of Armillaria 



Armillaria mellea; honey colored mushroom; honey- 

 colored armillaria; honey agaric. Plate IV, Species 10. 



On ground or on decaying wood ; in woods or in cleared land; 

 solitary or in groups, tufts or clusters; summer and autumn; 

 edible. 



Cap convex to expanded ; pale honey yellow to dark reddish- 

 brown; very variable in color and form but once known is 

 easily recognized; adorned with minute tufts of brown or 



137 



