548 THE AGARICACEAE OF MICHIGAN 



(e) Pileus conic-campanulate or umbonate, streaked with 



darker fibrils; stem short. 591. E. clypeatum Fr. 

 (ee) Pileus convex or finally plane, subumbonate, grayish- 

 brown (moist), 

 (f) Stem at length tinged gray; pileus scarcely fading, with 



a delicate, separable pellicle. 595. E. griseum Pk. 

 (ff) Stem white; pileus fading to whitish; gills narrow. 

 594. E. scricatum Britz. 

 (cc) Odor and taste not farinaceous. 



(d) Odor of fresh plant nitrous. 593. E. nidorosum Fr. 

 (dd) Odor not nitrous, 

 (e) Pileus umber, fuscous or cinnamon (moist). 



(f) Pileus conic-campanulate or umbonate; stem twisted; 



spores elongated-angular. 597. E. strictius Pk. • 

 (ff) Pileus at length plane; stem pure white; gills rather 

 broad; spores globose-angular. 592. E. rliodopolium 

 Fr. 

 (ee) Pileus whitish or yellow-tinged (moist). 



(f) Stout and firm, pileus watery, whitish or tinged yellow- 

 ish, 5-12 cm. broad; stem 10-20 mm. thick. 598. E. 

 grayanum Pk. 

 (ff) Rather slender and fragile, pileus whitish, 2-6 cm. broad; 

 stem 3-8 mm. thick. 599. E. speculum Fr. 

 (bb) Pileus neither viscid nor hygrophanous. 

 (c) Pileus conic or campanulate, usually unexpanded, 1-5 cm. broad; 

 among moss, especially sphagnum, 

 (d) Color of pileus changing darker in age, from pale yellow to 



reddish-brown. E. variaMle Pk. 

 (dd) Pileus fading or scarcely changing, 

 (e) Spores quadrate, 4-angled. 



(f) Pileus strongly cuspidate at apex, pale yellow. 602. E. 



cuspidatum Pk. 

 (ff) Pileus not cuspidate, 

 (g) Pileus yellow, smoky-yellow, or greenish-yellow. E. 



luteum Pk. 

 (gg) Pileus salmon-colored, subacute at apex. 600. E. 

 salmoneum Pk. 

 (ee) Spores 5-6 sided, irregular, longer than wide; pileus gray 

 to smoky-brown, umbonate. 601. E. peckianum Bert, 

 (cc) Pileus convex-expanded, large, yellowish-white or tinged 

 brownish; gills broad; stem solid; spores angular-sphoeroid, 

 8-10 micr. E. grande Pk. 



Section I. Genuini. Pileus fleshy, glabrous, moist or viscid; 

 not hygrophanous. 



586. Entoloma lividum Fr. (Poisonous) 



Epicrisis, L836. 



Illustrations: Cooke, 111.. PI. 311. 

 Ricken, Bliitterpilze, PL 72, Fig. 2. 

 Gillet, Champignons de Franco. No. 271. 



PILEUS 7-10 cm. broad, campanulate then expanded. f/Jabrous, 

 pelliculose, the cuticle composed of subgelatinous hyphae about 6 



