Saprophytic Fungi of Eastern Iowa. 189 



thin, campanulate, then expanded; lamellae free, close, thin, 

 narrowed- each way, at first reddish, then cinnamon; stipe 

 slender, equal, hollow, with a slight annulus. 



Height 3 '-4'. Pileus 2 '-3'. Spores elliptic, .004 x -007 

 mm. 



In the woods, but not common. Here denominated the 

 " Wild Mushroom," and deemed poisonous. Probably we 

 may say inedible and let it alone; the pileus is thin, and the 

 whole plant looks like a depauperate form of some nobler 

 species. 



Sttbgenns Stropharia. 



Hymenophore continuous with the stipe. Stipe annulate. 

 Gills more or less adnate. 



36. Agaricus semiglobatus, Batsch. 



Pileus pale yellow, somewhat fleshy, hemispherical, viscid 

 when moist, smooth and shining when dry; lamellae broad, 

 attached, clouded with black; stipe slender, graceful, hollow, 

 glutinous and yellow, like the pileus, the annulus slight and 

 spore-stained. 



Height 3 '-4'. Pileus i^'-i'. Spores elliptic, .009 x 

 .014 mm. 



Very common on manure in pasture fields and on manured 

 ground, lawns, etc., from May to late fall. Said to be poison- 

 ous; it is in any case insignificant and inedible. 



37. Agaricus stercorarius, Fr. 



Pileus dull or bright yellow, somewhat fleshy, hemispheric, 

 at length expanded, smooth and slightly viscid; lamellse broad, 

 adnate, white, at length of varying tints, brown to ochraceous, 

 black; stipe slender, slightly viscid when moist, stuffed with a 

 white pith, more or less floccose below the ring. 



Height 2'-3'. Pileus y^'-i'. Spores .oi2x-oiS mm. 



This little species is like the preceding in appearance, hab- 

 itat and abundance, it is distinguished by the expanded pileus 

 and stuffed stipe. Both species are of wide distribution, very 

 pretty, and, from an economic point of view, very useless. 



