252 Jour^ial of Mycology [Vol. 13 



22. PSILOCYBE SABULOSA Peck, Bull. Torr. Club. 

 1897. 



Pileus convex, subumbonate, glabrous, yellow. Stipe equal, 

 fistulous, pallid or straw-color. Lamellae broad, subdistant, ven- 

 tricose, adnata, becoming purplisb-brown, whitish on the edge ; 

 spores elliptic, 12-15x7-8 mic. 



Growing in sandy soil in pastures ; Kansas, Bartholomew. 

 Pileus 1.5-2.5 cm. in diameter; stipe 2.5-4 cm. long, about 2 mm. 

 thick. This species is quite distinct from Ps. arenulina which is 

 hygrophanous. 



23. PSILOCYBE LIMOPHILA Peck, 30 N. Y. Rep. 

 1877. 



Pileus thin, convex then expanded, fragile, atomaceous, radi- 

 ately rugulose, whitish, often splitting around the margin. Stipe 

 short, fistulous, equal, white, striate at the summit. Lamellae 

 rather broad, lax, whitish then purplish-brown ; spores elliptic, 

 10-12 X 5-6 mic. 



Growing in muddy alluvial soil under willows ; New York, 

 Peck. It is related to Hypholoma incertum but the veil is absent 

 and the spores are larger. 



h. LarncUae rather narroiv. 



24. PSILOCYBE SEMILANCEATA, Ag.^ricus semi- 



LANCEATUS FrIES, ObS. II, 1818. HyM. EuR. 1874. A. CALLOSUS, 



VAR. Syst. Myc. I, 1821. Cooke, Illustr. 572. 



Pileus submembranaceous, tough, ovoid-conic, slightly ex- 

 panded and acutely unbonate ; the dermis smooth, viscid when 

 moist, striatulate, easily seceding; the surface various in color, 

 yellow, greenish, etc. Stipe long, slender, tough, flexible, glab- 

 rous, pallid. Lamellae ascending, narrow, close, becoming pur- 

 ple-black; spores elliptic-oblong, 10-15 x 5-7 mic. 



Growing on manure or in rich soil in fields, pastures, etc. 

 New York, Peck. Pileus 1-1.5 cm. high and broad; stipe 7-10 

 cm. long, 2-3 mm. thick. 



25. PSILOCYBE SUBVIRDIS B. & C, Fungi Cub. 

 76. 1867. 



Pileus depressed, umbonate, glabrous, yellow-green, the 

 umbo brown. Stipe slender, fistulous, glabrous, at the base more 

 or less tomentose. Lamellae narrow, close, adnate ; spores pur- 

 ple-brown. 



Growing on rotten wood ; Cuba, Wright. Pileus 1-2 cm. in 

 diameter ; stipe 4-5 cm. long, i mm. thick. 



