246 FUNGUS-FLORA. 



flexuous, naked, paler than the pileus ; spores subglobose, 

 slightly angular, 4-5 /x. 



Agaricus (Clitopilus) popinalis, Fries, Epicr., p. 149 ; Cke., 

 Hdbk., p. 127 ; Cke., Illustr., pi. 485. 



Among grass, &c. 



Solitary or gregarious, smell pleasant, like new meal; 

 entirely grey. (Fries.) 



The pileus is often gibbous, or slightly but broadly umbo- 

 nate, and with a pinkish-brown tinge. 



Clitopilus undatus. Fr. 



Pileus 1-1^ in. across, rather fleshy, undulate and often 

 lobed, sooty-grey with a brown tinge, becoming pale, silky 

 and opaque when dry ; gills decurrent, thin, not crowded, 

 dark grey with a pink tinge ; stem about 1 in. long, 2 lines 

 thick, attenuated towards the base, coloured like the pileus, 

 hollow ; spores globose, war ted ; 6-8 /x, diameter. 



Agaricus ^Clitopilus) undatus, Fries, Epicr., p. 149 ; Cke., 

 Hdbk., p. 127 ; Cke., Illustr., pi. 486. 



Among grass. 



Much smaller and slenderer than Clitopilus popinalis ; in- 

 odorous. Stem entirely fibrous, not cartilaginous, scarcely 

 1 in. long, often very short, 1 or rarely 2 lines thick, fragile, 

 unequal, often compressed, slightly attenuated and with 

 white down at the base ; pileus thin and deeply umbilicate, 

 sometimes infundibuliform, unequal, undulate, about Ij in. 

 broad, not striate, becoming pale (not hygrophanous) and 

 rather silky when dry, opaque, sooty-grey. Gills not crowded, 

 distinct, 2 lines broad, margin quite entire. (Fries.) 



Clitopilus cancrinus. Fr. 



Pileus about 1 in. across, thin, almost membranaceous, at 

 first convex with the margin involute, then almost plane, 

 very much deformed, at length cracked and broken up on 

 the surface, not striate, almost glabrous, but without a cuticle, 

 hence minutely flocculose, not viscid nor zoned, whitish-tan 

 or entirely white, becoming pale, not hygrophanous ; gills 

 truly decurrent, distant, distinct, broadest near the stem, 

 rather thick, arcuate when young, then straight owing to 

 the expansion of the pileus, white then flesh-colour ; stem 

 white, stuffed or partly hollow, short, straight or ascending, 



