94 THE CHICAGO ACADEMY OF SCIENCES 



2 to 7 cm. broad; stem 3 to 5 cm. long, 4 to 6 mm. thick. Spores 

 subellipsoid, 5x4^. It may be that this species is common and 

 has been overlooked on account of its resemblance to H. ap- 

 pendiculatum. 



PSILOCYBE. 



Xo manifest veil; stem somewhat cartilaginous, rigid or tough, 

 tubular, the tube hollow or stuffed, often rooting; pileus more or 

 less fleshy, smooth, the margin at first incruved. Growing on the 

 ground, gregarious or cespitose. Spores fuscous-purple. 



Pileus 3.5 to 10 cm. broad; lamellae rounded be- 

 hind F. spadicea. 



Pileus 1.5 to 5 cm. broad, lamellae rounded in 



front P. foenisedi. 



Psilocybe spadicea Fr. 



Rigid; pileus fleshy, convex-piano, obtuse, even, moist, hy- 

 grophanous. 



Lamellae rotundate-attached, dry. close, whitish then fleshy- 

 brown. 



Stem hollow, tough, pallid, even at the apex. 



Pileus 3.5 to 7.5 cm. broad; stem 7.5 to 10 cm. long, G to 10 

 mm. thick. 



Clay bank in a thicket. Glen Ellyn. August. A lax cluster 

 of a dozen or more plants. Pileus 5 to 10 cm. broad, grayish- 

 brown when moist, paler and somewhat radiate-striate in drying; 

 lamellae ventricose, fleshy-cinnamon then rich umber, S to 10 

 mm. broad. Spores umber, oval, 10 x 7 /a. Our specimens agree 

 with the characters given by Stevenson, I; 329. Prof. Peck, in 

 \. Y. Mus. Rep't 23;99, has described a much smaller plant. 

 Mcllvane, in Am. Fungi, has copied 1'eck's description and has 

 added a cut which may stand for almost anything from a Coprinus 

 to a Marasmius. The stems of our plant are often curved and 

 rooted at the base. 



Psilocybe foenisecii Pers. 



Pileus pale fuliginous-fuscous, or brown, becoming pale, fleshy 

 chiefly at the disk, campanulate-convex, obtuse, dry, smooth. 



Lamellae adnate, ventricose in front, somewhat distant, livid- 

 fuscous at the sides, at Length umber. 



Stem fistulose, tense and straight, rigid-fragile, equal, naked, 

 rufescent, at first paler ami white-pulverulent, somewhat pubes- 

 cent. 



Spores 11 x 7 (M. J. B.); 10 \ 5 to 6 fi. (Massee.) Pileus 

 2.5 to 5 cm. broad; stem 5 to 7.5 cm. long, 2 to \ mm. thick. 



Gregarious in short grass in lawns. Wheaton. July. Pileus 

 hygrophanous, watery-brown in wet weather, banded with various 

 tints of brown when parting with its moisture, 1.5 to 3 cm. broad; 

 stem often crooked, and with a few mycelial fibers at the base. 

 When growing in manured soil it is much more robust, attaining 



