The Saprophytic Fungi of Eastern Iowa. 41 



any other species unless perchance A. -ptirns which A. laccatus 

 sometimes resembles in color. The latter is however solitary 

 in habit and has colored gills (not pure white). Found at the 

 base of stumps etc. 



15. Agaricus radicatus. — Rclh. 



Pileus convex, then expanded, umbonate, smooth and gluti- 

 nous when fresh, at length wrinkled; stipe long, slender, con- 

 colorous or paler, with a long tapering root-like base; la- 

 mellae distant, white, attached but not decurrent. 



Height 4 '-8'. Pileus 2' or 3'. June-November. 



Common in clearings at base of stumps etc. Recognizable 

 by its long rooting stipe and sticky more or less rugose cap. 



16. Agaricus dryophilus. — BtiU. 



Pileus thin expanded, generally depressed, glabrous, pale, 

 whitish or yellowish; lamellae white, narrow and crowded 

 sub-free; stipe hollow, smooth, yellowish brown, smooth and 

 shining with enlarged base. 



Height, 2 '-3'. Pileus I '-2'. June-October. 



Common in woodlands everywhere, often gregarious. 



17. Agaricus velutipes. — Ctirt. 



Pileus fleshy, thin, convex, viscid, yellowish brown, often 

 unsymmetrical and distorted; stipe velvety, brown, hollow, 

 often arcuate and rooting; lamellae slightly attached, yel- 

 low. 



Height 2 '-8'. Pileus i'-3'. September. 



Not uncommon : found in damp places springing from crev- 

 ices of old logs, dead roots etc., often in clusters as if csespi- 

 tose. Easily known by its tomentose stem, instantly suggest- 

 ing the scientific name — velutipes, velvet-footed. 



Subgenus Mycena. 



Pileus campanulate, more or less stnate, at first straight 

 and appressed to the stipe. Stipe tubular cartilaginous, ta- 



