CLASSIFICATION OF AGARICS 251 



ed but apiculate above. ODOR Blight, unpleasant. <>n the ground 

 in woods <>r white pine and beech. New Richmond. September. 

 Infrequent. 



This differs from 8. albonitens in the strong violet color of ^ills 

 and spores. The cap is inure ochraceous and more convex. The 

 uills arc more crowded. Tins seems to he closely related to flf. 

 melasperma l'r.. and the cystidia figured for thai species by Patouil- 

 lard (Tab. Analyt., No. 555) are characteristic of our specimens, 

 fif. bilamellata Pk. is a much larger plant, with larger spores, and 

 the thick annulus lias radiating gill-like ridges on its upper surface. 

 i See Peck, PI. lli'. Pig. 5 LO, N. V. State Mas. Bull. 122, 1908 and 

 Barper, Wis. Acad. Sci. Trans.. Vol. it. Pt. [I, PI. 65.) 



**Qroiving on dung. 



241. Stropharia stercoraria Fr. (Edible) 



Syst. Myc, L821. 



Illustrations: Cooke, 111.. PI. 538. 



Barper, Trans. Wis. Acad. Sci., Vol. IT. Pt. II. PI. 67. 



PILEFS •_'-<; cm. broad, convex-hemispherical, then broadly con- 

 vex or subexpanded, viscid from the separable, gelatinous pellicle, 

 glabrons, even, citron-yellow, buff or whitish when dry, often stained 



by the spores. FLESH white or tinned yellow, thin on margin, 



soft. (JILLS adnate at length subdecurrent, very broad, close, um- 

 ber-fuscous to purplish-olivaceous or blackish, edge white flocculose. 

 STEM (MS cm. long, :.'-(• mm. thick, elongated-cylindrical, stalled 



by white pith then hollow, base thicker, yellowish white, covered up 



to the evanescent, narrow annulus by the floccose scaly thin remains 

 of a mem'branaceus veil. SPORES large, elongated-elliptical, L5-21 

 x8-12 micr., variable in size, smooth, violet-purple under microscope, 

 blackish-purple in mass. "CYSTIDIA on the sides and edge of the 



gills, lanceolate. 50-70 X 1 1' 18 micr." i Kicken. i TASTE of pellicle 



slightly Litter. 



( >n dung hills, manure piles or similar places; gregarious. 



Throughout the State. May-October. Common, apparently more 

 common than the next. ;it least in southern Michigan. 



So close in appearance to Sf. semiglobata that they are difficult of 

 easy separation. 8. stercoraria is apparently almost limited todung 

 or manure, while the other has a wider range. It differs microscopic- 



