The Agarkaceae of Ohio. 565 



HYPHOLOMA FR. 



A.^ Pilens glabrous except that sometimes cobwebby remnants 

 of the veil occur on the margin. 

 E} Pileus hygrophanous. 



C.^ Lamellae dark violaceous in very young plants, ad- 

 nexed. S. 1038; St. 322; A. 28; Mc. 363; J. M. 



14: 29; M. 114 H. candoUeanum Fr. 



C.- Lamellae long remaining white or whitish, adnate or 

 mostly so. 

 D.^ Pileus brown or tawny when fresh. S. 1039; 

 St. 323; Mc. 363; A. 27; J. M. 14: 27; H. 



325 ; M. 114 H. appendiculatum Bull. 



. D.- Pileus whitish or yellowish. S. 1042; P. R. 29: 

 40; J. M. 14: 27; H. 323; Mc. 362. 



H. incertum Peck 

 B.- Pileus not hygrophanous. 



C.^ Pileus yellow or tinged tawny ; lamellae sulfur-yel- 

 low then green. S. 1029; St. 318; J. M. 14: 31; 



Ale. 357 ; M. 114 H. fascicidare Huds. 



C.- Pileus red or brownish-red. 



D.^ Taste bitter; mature lamellae sooty-olive. S. 



1028; St. 323; Mc. 359; A. 26; J. M. 14:31; 



H. 326; M. 114....//. suhlateritium Schaeff. 



D.^ Taste not bitter; mature lamellae purple-brown. 



S. 1028; H. 327; P. R. 49: 61. 



H. perplexum Peck 

 A.^ Pileus innately fibrillose or scaly. 



B.^ Pileus hygrophanous ; at first velvety or tonientose, be- 

 coming glabrous; lamellae black-spotted. S. 1034; 

 St. 321; J. M. 14: 66; Mc. 360; M. 114. 



H. velutinuni Pers. 

 B.- Pileus not hygrophanous ; lamellae not black-spotted. 

 C.^ Flesh and veil white; pileus whitish to brown. S. 

 1033; St. 320; ]Mc. 361; A. 28; H. 325; M. 114. 



H. lacrymabundiim Fr.. 



