•584 Proceedings of the Ohio State Academy of Science. 



C.^ Plants without alliaceous odor. 

 D.^ Pileus white or whitish. 



E.^ Stipe arising from a more or less abundant 

 mycelium, not inserted. 

 F.^ Lamellae rather distant, sinuate ; stipe 

 entirely glabrous. H. 151 ; J. M. 



II : 206 M. delectans Morg. 



F.- Lamellae rather close, nearly free ; stipe 



subpruinate when dry, strigose at 



base. S. 520; St. 2:144; J- ^I- 



11:207 ...M. crythropus (Pers.) Fr. 



E.- Stipe inserted, mycelium within substratum 



and invisible. S. 525 ; H. 145 ; Mc. 226 ; 



]\r. 192; St. 2:146; J. M. 11:235. 



M. calopus (Pers.) Fr. 



D.- Pileus some shade of brown, yellow, reddish or 



purplish. 



E.' Pileus umbonate; plants growing in a tuft 



with stipes more or less united. S. 522 ; 



J. M. 11:238 M. cucurbitnla Mont. 



E.- Pileus not umbonate ; stipes not united. 



F.^ Lamellae united behind but free from 

 stipe; pileus reddish-gray. S. 511; 

 H. 145; M. 192; J. M. 11:208; P. R. 



24 : 76 M. anomaliis Peck 



F.- Lamellae not united behind, attached to 



stipe. 



G.^ Lamellae whitish, close; pileus about 



I cm. broad, striatulate ; stipe 



white at top. S. 543; H. 138; P. 



R. 23: 126; J. M. 11:245. 



^t. androsaceus (L.) Fr. 



G.- Lamellae purplish-gray, subdistant; 



pileus 4-6 mm. broad, not striate; 



stipe not white at top. S. 14: 104; 



