Kauffman : The genus Cortinarius 319 



Pileus with dark olivaceous tinge. 



C. anfractus Yx, 

 Pileus with a violaceous or purple color. 



Flesh and gills turning purple when bruised. 



C piirpiirascens Fr. 

 Flesh not turning purple. 



Stem with niarginate bulb. 



C caertilescens Fr. 

 Stem clavate or slightly bulbous. (Pileus sometimes 



almost pale yellow.) ^ 



C, Berlesianus Sacc. & Cub. 

 Stem subequal ; plants small. 



C croceo-caerulezis (Pers. ) Fr. 

 Pileus some shade of yellow ; no tinge of violet. 



Pileus covered by gluten ; stem viscous when moist. 



C, ^phaerospoi'iis Pk. 

 Pileus not covered by gluten ; pileus deep tawny-orange ; stem 



marginate-bulbous. 



C.fidgens (Alb, & Schw.) Fr. 

 Pileus some shade of drab. C sterilis sp. nov. 

 B. Cuticle of pileus not composed of gelatinous fibers, hence never viscid nor gela- 

 tinous. \_InoIomay Telamoiiia^ Dermocybcy and Hydrocybe,'\ 

 Spores IO-I2 a long; plants not whitish nor violaceous. 

 Plants small, 2-4 cm. tall. C. badiusW, 



Plants longer, about 8 cm. tall. 



Stem with cinnabar-colored, persistent, concentric rings. 



C. ai-miUatus (Alb. & Schw.) Fr. 



Stem sheathed by the veil, i. e.^ peronate. 



C. torvus Fr. 



Spores 4-9 II long ; if longer, plants are whitish or violaceous. 

 Stem and pileus scaly or shreddy. 



Scales red (scarlet to vermillion). C, bolaris (Pers ) Fr. 

 Scales brown to blackish. 



Plant large, watery-spongy, soon dark chocolate-colored. 



C. sqnawuhsus Pk. 

 Plants of medium size, wood-brown. 



Stem not scaly. 



C pholideus Fr. 



Stem with more or less persistent annular rings or peronate. 



Plants large, l-S cm. or more tall; pileus proportionately broad. 

 Pileus ochraceous, clay-colored, or tawny. 



Stem at first peronate by the white universal veil; pileus 



at first buff. CJiavifoHus Pk. 

 Stem at first peronate by the tawny-yellow universal veil ; 



pileus at first tawny-yellow, 



C. anniilatus Pk. 



Entire plant saffron-yellow. 



C. ci'oceocolor sp. nov. 



Pileus bluish to purple when young ; buff to tan when old. 



