The Agaricaccac of Ohio. 517" 



E.' Pileus white or whitish. 



F/ Pileus somewhat viscid; lamellae rather 

 close or subdistant, mostly adnate. S. 

 16:39; H. 220; B. T. 25:322. 



H. sordidiis Peck 

 F.- Pileus nut viscid ; lamellae distant, de- 

 current. S. 402; St. 2:79; Mc. 153; 

 H. 219; M. B. 116:55. 



H. virgincus (Bull.) Fr. 

 E." Pileus not white. 



F.^ Pileus variable in color, not viscid, 

 usually more than 2.5 cm. broad; 

 plants growing on ground. S. 401 ; 

 H. 205, 206; St. 2:79; Mc. 152; A. 

 113; M. B. 116:56. 



H. pratensis (Pers.) Fr. 

 F.- Pileus yellow becoming purplish, viscid, 

 2.5 cm. or less in breadth ; plants 

 growing on wood. S. 422. 



H. ohiensis Mont. 

 D.- Lamellae crowded, narrow, pileus soon in- 

 fundibuliform. S. 403. 



H. sfenophyllus Mont. 

 T!.- Stipe stufifed or soon hollow. 



C.^ Stipe scabrous or punctate at apex with small 

 scales ; whole plant white, viscid. S. 388 ; M. B. 

 116:47; St. 2:71; H. 206; Mc. 149; A. in; M. 



180 H. chiirncns (Bull.) Fr. 



C.- Stipe glabrous. 



D.' Plants covered with greenish slime, at least 

 when rather young. S. 420; A, 114; M. B. 

 T16: 64; St. 2: 90. 



H. psittacinns ( Schaefif.) Fr. 

 D.- Plants without greenish slime. 



E.' Plants bright red, orange or yellow; pileus 

 tliin and fragile. 



