Porphyrosporae 



been encountered, and one semiglobata has been eaten by himself stropharia. 

 and friends since iSSi, notwithstanding its dangerous reputation. 



The division between this genus and Agaricus is not always sharply 

 denned. S. aeruginosa, S. semiglobata and S. stercoraria were formerly 

 placed in Psalliota, now Agaricus. 



ANALYSIS OF TRIBES. 



A. VlSCIPELLES (viscum, bird-lime; pellis, a skin). Page 349. 



Pellicle of the pileus even or scaly, generally viscid. 

 * Mundi mundus, clean. Not growing on dung. 

 ** Merdarii merda, dung. Ring often incomplete. 



B. SPINTRIGERI (Stropharia spintriger). 



Pileus without a pellicle, but fibrillose, not viscid. None known to 

 be edible. 



A. VlSCIPELLES. Pellicle of the pileus even or scaly. 

 * Mun'di not growing on dung. 



S. semgino'sa Curt. cerugo, verdigris, 

 compact, convex-bell-shaped then 

 flattened, somewhat umbonate (ob- 

 tuse when larger), with very viscid 

 pellicle, the ground color yellowish 

 but verdigris from the azure-blue 

 slime with which it is more or less 

 covered over, becoming pale as the 

 slime separates. Stem hollow, soft, 

 equal, at the first scaly or fibrillose 

 below the ring, viscid, becoming more 

 or less azure-blue green . Ring distant. 

 Gills adnate, plane, 2 lines and more 

 broad, not crowded, soft, whitish 

 then dusky, becoming somewhat pur- 

 ple. 



Pileus fleshy, but not 

 (Plate XCVI.) 



STROPHARIA AERUGINOSA. 

 Natural size. (After Stevenson.) 



The above are the essential marks of this species. Variable in form, 



349 



