The Ayaricaccac of Ohio. 535 



I. M. I I : J45 ; Jour. (in. Soc. Xat. 



I li>i. iS: .V'. I I'l- 1 '• -). 



M . niclanopus Morg. 

 A." Stipe pruinatc, |)iil)rscciU, vclvcty-lonicnlosc, etc., not gla- 



blMUS. 



13.' Stipe solid or stufled, not hollow at least when young. 



not horny. 



C Taste mild; stipe not strigose or downy at the base. 



D.' Lamellae broad, whitish or yellowish. S. 510; 



Mc. 224: A. 131; H. 136; St. 2: 142; J. M. 



1 1 : 205 ; M. i')0; V. R. 23 : 124. 



M. arcades Fr. 

 D." Lamellae niirnnv, brcnvn or brownish. S. 511; 

 M. 190; j. M. II : 205; P. R. 23: 125. 



M. plancus Fr. 

 C.- Taste acriil cr biilcr; base of stipe strigose or con- 

 spicuously downy. 

 D.' Margin of pilcus not striate; lamellae free, dis- 

 tant. S. 504 ; St. 2 : 140 ; H. 138 ; Mc. 223 ; M. 



189 ; J. M. II : 202 M. urcns Fr. 



D.- ^largin striate; lamellae attached or seceding, 

 close or subdistant. 

 E.^ Lamellae rather broad, close ; stipe yellow 

 or rufescent. S. 504; J. M. 11:204; St. 

 2: 141 ; [ [. 148, 149; M. 190; Mc. 223. 



M. pcronatns Fr. 

 E.- Lamellae narrow, subdistant; stipe reddish- 

 brown above, to blackish-brown at base. 

 S. 16:3;; P. R. 51:287; J. Isl. 11:202. 

 M. siibniidiis (Ellis) Peck 

 B.- Stipe hi)ll(i\v. 



C Pileus while, w hitish or pallid. 

 D.' Lamellae docurrent. 



E.' 1 'ileus usually less than 6 mm. broad. J. ^T- 



12:6; M. 193 .1/. cJavaeformis Berk. 



E.- I'ileus (1-15 111111. broail. S. 561: J. AL 12:5. 



.1/. Icucoccpliahis Mont. 



