526 Proceedings of tJie Ohio State Academy of Science. 



A.- Lamellae equal or with a few shorter ones. 

 B.^ Stipe yellow, at least at base. 



C.^ Pileus red, becoming yellowish at center or entirely 

 so ; stipe orange-yellow at base ; lamellae pale 

 ochraceoLis. S. ly : 34; B. T. 31: 179; Oh. Nat. 



10: 177 R. luteobasis Peck 



C.- Pileus wholly yellow, sometimes mealy; stipe wholly 

 yellow; lamellae white. M. B. 116: 78; K. 72; 



Mc. 197 ; S. 9 : 60 R. flovida Frost 



B.- Stipe white or whitish, red or reddish. 

 C} Lamellae forking much throughout. 



D.^ Lamellae close; pileus purplish, umber or green 

 or with these colors mingled. M. B. 105 : 41 ; 



K. 73 ; H. 190 R. variata Bann. 



D.- Lamellae subdistant; pileus yellowish-green or 

 umber-green. S. 456; M. B. 116: 74; K. 73; 

 Mc. 191 ; H. 194; St. 2: 116. 



R. furcata (Pers.) Fr. 

 C. -Lamellae not often forking or only near stipe. 



D.^ Lamellae or spores, usually both, white or whit- 

 ish to cream color. 

 E.^ Pileus some shade of red or purple. 

 F.^ Taste acrid. 



G.^ Pileus dry, margin even. S. 462 ; M. 



B. 116: 79; St. 2: 120; K. 67; 



Mc. 196; H. 195.... 7?. rubra Fr. 



G.- Pileus viscid or subviscid ; margin 



striate or sulcate, tuberculate. 



H.^ Pileus 2-5 cm. broad ; lamellae 



close. S. 472; St. 2: 126; M. 



B. 116: 88; Mc. 203; H. 192; 



St. 2: 126. 



R. fragilis (Pers.) Fr. 



H.- Pileus usually 5-10 cm. broad; 



lamellae subdistant. S. 469 ; 



M. B. 116: 87; K. 78; Mc. 



201 ; H. 193; St. 2 : 125. 



R. eiiietica Fr. 



