The Agaricaceae of Ohio. 667 



P. rhodopliaea Mont. (S. 1050; J. M. 13: 249), P. pulicosa 

 Alont. (S. 1056; J. M. 13: 249), and P. sullivantii Mont. (S. 

 1047; J- -^'- M- ^"'' li'i\t' not been recognized since 1856. 



PSATIIYRA FR. 



A.' Plant not violaceous. 



B.^ Pileus unibonate. S. 10O9; J. M. 13: 152. 



r. subnuda Karst. 

 B.- Pileus not imibonate. 



C.^ Pileus striate; stipe arising from mycelial bulb; 

 growing in sand. f. M . 13: 152. 



P. miamensis Morg. 



C.- Pileus even; stipe nearly equal; not growing in 



sand. S. 16: i2<.; J. M. 13: 152; B. T. 26: 68. 



P. inicrospernia Peck 

 A.- Whole plant violaceous. S. 1063; J. M. 13: 151. 



P. pholidofa Mont. 

 COPRINUS FR. 



A.' Lamellae crowded; substance of pileus rather thick and 

 fleshy; pileus often striate but not plicate. 

 B.^ Pileus scaly or floccose-villous or nearly glabrous, not 

 atoniate or mealy. 

 C.^ Scales of pileus small or medium, formed by break- 

 ing up of surface of pileus. 

 D.' Pileus at first cylindrical; white, shaggy: stipe 

 annulate. S. 1079; St. 348; Mc. 370; H. 332; 



A. 33-40: M. 173 C. comatus Fr. 



D.- Pileus at first ovoid. 



E.' Pileus cinerous, scales reddish-brown; stipe 

 w ith similar scales, annulate. S. 1081 ; M. 



173 ; pi. S C. squaiiiosus Morg. 



E.- Scales of ]>'leus not reddish-brown; stipe not 

 scaly. 

 F.' Plants growing on fallen trunks or 

 stuni])s: pileus grayish-brown. S. 

 T083: M. 174: St. 350; Mc. 374. 



C. fiisccsccns fSchaefT.) Fr. 



