18 



ovate-ellipsoid, uniguttate, apiculate at one end, 5-6x3 p.. 



Pileus 2-4 cm. wide, 1^-3 cm. high; stipe 3-6 cm. long, 2- 

 5 mm. thick. 



On the ground, among leaves, Wabash, Otowanie Woods. 

 Mastocephalus repandus Clements. 



Pileus convex- repand, carnose, covered with minute, crowded, 

 granular scales, incarnate-ochraceous ; unvbo distinct; stipe 

 graceful, hollow, equal, minutely floccose-farinaceous, 

 white above, pinkish-ochraceous below; annulus white, 

 superior ; lamellae free, white, ventricose ; spores ellipsoid 

 or globose, 5 -7x5 //. 



Pileus 13-18 mm. wide; stipe 2-3 cm. long, 1-1^ mm. 

 wide. 



On rich earth, Lincoln. Eelated to M. cristatus (Alb. & 

 Schw.) OK. 

 Mastocephalus sulphurinus Clements. 



Pileus campanulate, then convex, subcarnose, pellicle sul- 

 phur-yellow, silky, torn into crowded, oblong, or elongate 

 scales, margin distinctly striate-plicate, floccose: umbo dis- 

 tinct, elevated, glabrous, or scarcely rimose, incarnate-brick- 

 colored; stipe graceful, fistulose, pruinose, strongly bulb- 

 ous at the base, yellow-floccoso, above incrassate, shining, 

 isabel-colored; annulus superior, fixed, laerate, sulphur- 

 yellow; lamellae, touching the collar, linear, crowded, 

 nearly white, or pale straw-colored ; spores ovate-Mlipsoid, 

 uniguttate, 7-9x4-5 fi. 



Pileus lJ-3 cm. wide; stipe 4 cm. long, 3-4 mm. wide above, 

 6-7 mm. below. 



On the ground, Lincoln, 

 Clitocybe megalospora Clements. 



Pileus plano-convex, subcarnose, even, glabrous, yellow- 

 orchraceous, darker at the center, margin thin; stipe 

 graceful, fistulose, glabrous, becoming white; lamellae 

 white, distant, short-decurrent, pale yellow; spores large. 



