Nov. 1907] North Americaji Species of Agaricaceae 249 



10. PSILOCYBE CASTANELLA Peck, Bulletin I, 

 No. 2, 1887. 



Pileus thin, convex or subconical, then expanded or slightly 

 depressed, glabrous, hygrophanous, chestnut or umber and 

 striatulate when moist, pale alutaceous when dry. Stipe equal, 

 flexuous, hollow or stuffed, silky-fibrillose, brownish or subrufes- 

 cent, with a white mycelium at the base. Lamellae close, adnata, 

 at first pale brown, then purplish-brown ; spores purplish-brown, 

 7-8 X 4-5 mic. 



Gregarious or subcaespitose ; growing in grassy ground by 

 roadsides; New York, Peck. Pileus 1-1.5 cm. in diameter; stipe 

 3-5 cm. long, 1-2 mm. thick. 



11. PSILOCYBE CAMPTOPODA Peck 31 N. Y. Rep. 

 1878. 



Pileus thin, broadly convex, glabrous, hygrophanous, brown 



and striatulate when moist, whitish and even when dry. Stipe 

 solid, equal, smooth, generally curved, pruinose at the summit, 

 with a white strigose mycelium at the base. Lamellae narrow, 

 close, whitish becoming brown ; spores elliptic, 6x4 mic. 



Growing on old trunks in woods ; New York, Peck. Pileus 

 1-2 cm. in diameter ; stipe 2-3 cm. long. 



12. PSILOCYBE RHODOPHAEA Montagne, Syll. 

 Crypt. 389. 



Pileus submembranaceous, convex then expanded, smooth 

 and glabrous, hygrophanous, rose-color or lilac, rufescent when 

 dry. Stipe tall, flexuous, fistulous, concolorous with the pileus, 

 except at the apex where it is white striatulate, the base floccose- 

 fibrillose. Lamellae rather narrow, distant attenuate-adnexed, 

 at first rose-color becoming blackish-brown ; spores "brown, ellip- 

 tic, 16 X 7-8 mic. 



Growing on old leaves in woods ; Columbus, O., Sullivant. 

 Pileus 1-2 cm. in diameter; stipe 7-9 cm. long, 1-2 mm. thick, 



13. PSILOCYBE PULICOSA Montagne, Syll. Crypt. 

 388. 



Pileus fleshy, thin, conic then campanulate, obtuse, striatulate, 

 hygrophanous, dark brown when wet, expallent in drying. Stipe 

 long; slender, fistulous, smooth, pallid. Lamellae narrow, linear, 

 adnate, pale umber, becoming brown or blackish; spores dark 

 brown, elliptic, large, 20 mic. long. ( ?) 



Growing on the ground ; Columbus, O., Sullivant. Pileus 

 2-3 cm. in diameter ; stipe 7-9 cm. long, 3-4 mm. thick. Closely 

 related to Ps. spadicea. 



