552 Proceedings of the Ohio State Academy of Science. 



HEBELOMA FR. 



A.^ Pileus glutinous, with whitish superficial squamules, yellow- 

 ish-white. S. 793; St. 273; M. B. 139:68; H. 273; Mc. 



285 H. ghitinosum (Lind.) Fr. 



A.^ Pileus moist or more or less viscid but not glutinous, not 

 squamulose. 

 B.^ Lamellae very narrow; pileus whitish-tan or brick-color. 

 S. 799; St. 260; M. B. 139:73; Mc. 286; H. 273; 



A. 158 H. crustiliniforme (Bull.) Fr. 



B.^ Lamellae broad. 

 C} Stipe solid. 



D.^ Pileus yellow or tan ; lamellae subdistant. S. 

 792; M. B. 139:70; Mc. 284; H. 273; St. 255; 



M. 107 H. fastihile Fr. 



D.2 Pileus brownish-clay; lamellae close, S. 16:92, 

 17:67; M. B. 139:71; H. 274. 



H. pascitense Peck^ 

 C.^ Stipe stuffed or hollow. 



D.^ Pileus and stipe brown ; plants growing on wood. 

 S. 806; M. 107; M. B. 139:76. 



H. illicitum Peck 

 D.^ Pileus pallid or clay-colored ; stipe white ; plants 

 with odor of radishes. S. 799; St. 259. 



H. sinapisans Fr. H. repandum Schum. 



Notes. 



Plants collected by W. A. Kellerman were determined by 

 A. P. Morgan as H. repandum which is given by Fries and Sac- 

 cardo as a variety of H. sinapizans. Kellerman's photograph 

 (Mycological Bulletin 5:364) shows the stipe to be stuffed and 

 hollow. In the European plant the stipe is said to be somewhat 

 solid. 



PL glutinosum and H. crustiliniforme have not been definitely 

 reported for Ohio but probably occur here. They are included 

 in the key for convenience. 



