The Agaricaceae of Ohio. 549- 



E/ Pileus white except for the tawny, erect, 

 pointed scales; lamellae sinuate, at first 

 whitish. S. 750; M. B. 122: 150; A. 152; 

 Mc. 274; H. 266; M. 102. 



P. squarrosoides Peck 

 E.^ Pileus* yellow or yellowish-brown. 



F.^ Lamellae at first yellow, close; stipe yel- 

 low to tawny-brown. S. 752; St. 232;. 

 M. B. 122:150; Mc. 276; A. 151; M. 



103 P. adiposa Fr.. 



F.^ Lamellae at first whitish or gray, subdis- 

 tant, edge white-crenulate ; stipe pallid 

 or brownish. S. 760; M. B. 122: 149; 



M. 102 P. alhocrenulata Peck 



B.^ Pileus not viscid. 



C.^ Pileus and stipe with prominent scales ; lamellae 

 rather narrow; stipe 6-12 mm. in diameter. S. 

 749; M. B. 122: 152; A. 152; St. 230; Mc. 273; 



H. 268 P. squarrosa MiilL 



C.^ Pileus and stipe with small or appressed scales or not 

 scaly. 

 D.^ Pileus more than 5 cm. broad; stipe more than 

 I cm. in diameter. 

 E.^ Lamellae very broad, sinuate-adnexed ; pileus 

 white or slightly yellow ; stipe white. S. 

 747 ; St. 229 ; H. 263 . . ..P. heteroclita Fr. 

 E.^ Lamellae narrow, adnate or slightly decur- 

 rent; pileus tawny or orange-yellow; stipe- 

 yellow. S. 751; St. 231; M. B. 122: 154;: 



H. 265 ; M. 103 P. spectahilis Fr.- 



D.^ Pileus less than 5 cm. broad; stipe slender. 

 E.^ Pileus dry, not hygrophanous. 



F.^ Stipe bulbous or tuberculate, lamellae- 

 sinuate-adnexed. S. 754 ; St. 233 ; M. 

 103. 



P. tuberculosa (Schaeff) Fr.. 

 P. hormophora Mont. 



