NATURAL HISTORY SURVEY 37 



Spores globose, rough, 7.5 to 10 /*. Pileus 12 mm. to 5 cm. 

 broad; stem 2.5 to 15 cm. long. 



Common in woods throughout our district. Very luxuriant 

 during the rainy season of 1902. Specimens were often found 

 measuring up to 8 cm. in diameter. Depauperate plants are 

 found in moist places; these having the pileus only 4 to 6 mm. 

 broad. Those appear at first sight to be a different species, but 

 connect with the ordinary form by insensible gradations. The 

 minute plants are usually densely gregarious. 



Clitocybe amethystina Bolt. 



Pileus dark-purple, umbilicate, smooth, minutely tomentose, 

 involute. 



Lamellae dark-purple, broad, decurrent . 



Stem fibrillose, purple, streaked with white fibrils, equal, 



!y covered with white tomentum at the base. 

 Pileus 2.5 to 3.5 cm. broad; stem, 5 to 7.5 cm. long. 



Ground, in woods, Riverside. Harper. Glencoe. Spores not 

 distinguishable from those of C. laccata, of which it is considered a 

 variety, although the distinctive amethystine color appears con- 

 stant, both in the fresh and dried plants. 



Clitocybe ochropurpurea B. & C. (Plate III, Fig. 2). 



Pileus subhemispheric, at length depressed, flesh}', compact, 

 tough, pale alutaceous, slightly turning to purplish, the cuticle 

 separable, the margin inflexed, at first tomentose. 



Lamellae thick, purple, broader behind, decurrent. 



Stem paler tha'n the pileus, here and there purplish, tumid in 

 the middle. 



Pileus 2 cm. broad; stem 6 cm. long, 18 mm. thick in the 

 middle. 



Dry woods, "Winfield and Lombard, summer and autumn, 1898 

 and 1902. The species was common. "During 1899, 1900 and 

 1901 no plants were found, although careful search was made at 

 both stations. 



Well grown specimens have a symmetrically-shaped pileus 7 

 to 10, sometimes as much as 15 cm. in diameter. When old, the 

 margin is occasional!}' rimose, and the whole surface of the pileus 

 broken up into large scales. The cap is often covered with the 

 abundant spores shed from adjacent or overlying plants. Dis- 

 torted specimens are common; sometimes with a fusiform stem 

 2.5 to 3.5 cm. in diameter in the middle, and tapering toward the 

 apex and base, and with a pileus not more than 2.5 cm. across; at 

 other times with a tall, cylindrical stem, or with a club-shaped 

 stem Broadening out at the apex into a pileus which is scarcely 

 more than a border, indistinctly differentiated into gills upon its 

 under surface; while still others have the stem curiously curved 

 or twisted. 



