The Agaricaceae of Ohio. 53^ 



MARASMIUS FR. 



A.^ Stipe glabrous (except perhaps at base), horny, polished. 

 B.^ Pileus radiate-sulcate or deeply striate. 



C.^ Lamellae joined behind in a collar encircling the 

 stipe and free from it. 

 D.^ Pileus umbonate. S. 542; H. 146; St. 2:150; 



J. M. 12:1 M. graminum (Lib.) Berk. 



D.2 Pileus umbilicate, but often with a small umbo 

 within the depression. 

 E.^ Stipe capillary, scarcely thicker than a hair; 

 pileus pale tan; lamellae subdistant. S. 

 541; M. 194; J. M. 11:247. 



M. capillar is Alorg. 



E.^ Stipe somewhat thicker; lamellae distant; 



pileus white or whitish. S. 541 ; P. R. 



23:125; H. 143; St. 2:149; J. M. 11:247. 



M. rotula (Scop.) Fr. 



C.^ Lamellae not joined in a collar. 



D.^ Pileus ochraceous or ochraceous-red ; stipe with- 

 out purple tints, blackish-brown below, paler 

 above. S. 535; M. 193; J. M. 11:241; P. 



R. 23 :i26 M. campanulahis Peck 



D.^ Pileus purplish to purplish-brown ; stipe purplish 

 when young, becoming brown. S. 535 ; H. 



146,148; J. M. II :240 M. siccus Schw. 



J. M. II : 207 M. bellipes Morg. 



B.^ Pileus not sulcate. 



C} Plants with odor of garlic. 



D.^ Pileus grayish-brown, reddish-brown or paler; 

 stipe entirely glabrous. S. 525; H. 144; Mc. 

 226; St. 2:146; J. M. 11:234. 



M. scorodonius Fr. 



D.^ Pileus white or whitish ; stipe subtomentose at 



base. S. 515; H. 145; M. 192; J. M. 11:206. 



M. prasiosmus Fr. 



