88 THE CHICAGO ACADEMY OF SCIENCES 



Lamellae close, ventricose, rounded behind, somewhat emarg- 

 inate, converging to a villous, whitish, lateral space, pale ochra- 

 ceous-brown. 



Spores ferruginous, globose, 6 /x. 



Decorticated decaying log in a moist ravine, woods, Winfield. 

 August. Both the pileus and lamellae of the fresh plant have a 

 pale reddish-orange tint. Pileus 15 to 30 mm. broad. Spores 

 ochraceous-ferruginous, varying in size from 5 to 7 //.. 



CORTINARIUS. 



Hymenophore continuous with the stem; veil arachnoid, 

 evanescent; lamellae persistent, arid, covered with the yellowish 

 brown spores; trama fibrillose; spores globose or oblong. Grow- 

 ing on the ground in woods. 



Pileus viscid, clay-color or fuscous-yellowish C. caerulescens. 



Pileus viscid, violet-purple C. iodes. 



Pileus dry C. violaceus. 



Cortinarius caerulescens Fr. 



Pileus clay-color or fuscous-yellowish, fleshy, convex then plane, 

 obtuse, regular, even, smooth, viscid. 



Lamellae somewhat adnate, slightly rounded, crowded, bright 

 azure-blue, then purplish, finally dingy-cinnamon. 



Stem solid, attenuated upwards from the marginate bulb, 

 firm, at first fibrillose and violet-color, then naked, becoming 

 pallid. Cortina fibrillose, fugacious. 



Spores subellipsoid, 9 to 10 x 5 to 6 /x,. Pileus 5 to 7 cm. 

 broad; stem 5 cm. long, 12 mm. thick, the bulb 2 to 3 cm. thick. 



On the ground in woods. Glencoe and Glen Ellyn. August 

 to October. 



Cortinarius iodes B. & C. 



Pileus convex then plane, viscid, firm, violet-purple; flesh 

 thick, white; veil fugacious. 



Lamellae violet then cinnamon, adnate, ventricose, sub- 

 emarginate, ; rregular, sometimes forked. 



Stem solid, thickened below, violet or purplish-violet. 



Pileus 4 to 6 cm. broad; stem 5 to 7.5 cm. long; spores ellip- 

 soid, 10 x 6 p. 



Woods, Highland Park. September. Collected and identified 

 by Dr. Watson. 



Cortinarius violaceus Fr. 



Pileus convex becoming nearly plane, dry, adorned with 

 numerous persistent hairy scales or tufts, dark-violet. 



Lamellae somewhat adnate, distant, connected by veins, 

 darker than the pileus, at length brownish-cinnamon. 



Stem solid, spongy-soft, fibrillose, bulbous, dark violaceous, 

 internally violaceous-cinereous; cortina azure-blue. Inodorous, 

 edible. 



