CLASSIFICATION OF AGARICS 247 



those species with a viscid pellicle; but wiili the data a1 band it 

 seems best io defer this arrangement. Ricken divides tli<' genns 

 by the size of the Bpores, but iliis method neglects other more im- 

 portanl morphological characters. <>n the other band, some species 

 could be better Located in the genus Uypholoma ;is is dune l>\ Itiekeu 

 for 8. caput-medusae Fr., 8. scobinaceum Fr. and 8. battarm Fr. 

 There are then two sections: Viscipelles and Bpintrigeri. 



Key to the Species 



(a) Pileus with bluish-green or olive Bhades, viscid. 

 (bt Stem 4-7 mm. thick, greenish-blue; pileus thick, green; on 



debris in woods. 236. flf. aeruginosa Ft. 

 (bb) stem 1.5-2 mm, thick, long and Blender; pileus thin, olvace 



i, r r;iy; on dung and nnid. (See 268. PSilocybe Uda l'r. I 

 (aa) Pilous without green or olive. 

 (b) Stem ventricose-radicating; pileus umber to tawny-alntacens, 



viscid. 237. B. ventricosa Mass. 

 (bb) Stem not radicating. 



(c) Parasitic on Coprinus, whitish. 244. 8. epimycea (I'k.i Atk. 

 (cc) Not parasitic; pileus viscid or subviscid. 

 (d) Growing on dung. 



(e) Pileus citron-yellow, 2-5 cm. broad; common. 



(f) Pileus persistently hemispherical. 242. flf. semiglobata 



Fr. 

 (ff) Pileus convex-subexpanded. 241. B. stercoraria Fr. 

 (ee) Pileus ochraceous-brown, 1-2.5 cm. broad, conic-campanu- 

 late. 243. flf. umbonatrscens Pk. 

 (dd) Not on dung. 



(e) Pileus 5-10 cm. broad, cinnamon-drab, viscid, stem squar- 



rose-scaly. 238. S. depilata Fr. 

 (e) Pilous 1-4 cm. broad. 



(f) Gills strongly violet-purplish ; pileus ochraceous-pallid. 



L'tu. g. coronilla Hres. 

 II') Gills strongly gray-tinged; pileus white to buff. 

 239. 8. albonitens Fr. 



Section I. Viscipelles. Pileus provided with ;i distinct gelatinous 



pellicle, hence viscid: glabrous <>r scaly. 



*Growing on tin ground or >m debris. 

 236. Stropharia aeruginosa Fr. (Si SPE< u D 



Syst. -M.vc.. L821. 



Illustrations: Cooke, 111., PL 551. 



Gillet, Champignons de France, No. 650. 



Ricken, Blatterpilze, PL 03, Fig. I. 



Pattouillard, Tab. Analyt, No. 231. 



Swanton, Fungi, PL 38, Fig. 7-9. 



Harper, Wis. Acad. Sci. Trans., Vol. IT. pt. 1 1. PL 64, 1913. 



