PSILOCYBE. 371 



minutely fibrillose, pale, base rusty, hollow ; spores elliptical, 

 brown, 12 X 6 /x. 



Agaricus (Psilocyhe) i:)'hysaJo'ides, Bulliard, Champig., t. 366, 

 fig. 1 ; Cke., Hdblc, p. 210; Cke., Illustr., pL 609 A. 



On the ground in fertile places, also amongst moss. 

 Cooke sajs, on dxmg. 



Closely related to Psilocyhe hidlacea ; on white paper the 

 spores are blackish-purple, on black paper lilac-violet. 

 Pileus purple-brown, paler towards the margin, at length 

 umbonate and depressed round the umbo. Readily con- 

 founded with Tuharia rnquilina. (Fries.) 



Stem fistulose, filiform, wavy, 1 in. and more long, ad- 

 pressedly fibrillose, pale, base bay. Veil not evident. Pileus 

 rather fleshy, campanulate then expanded, at length 

 flattened, umbo prominent, usually depressed round the 

 umbo, 3-4 lines broad, glabrous, even, with a viscid pellicle, 

 shining, purple-brown. Gills adnate, slightly decurrent, 

 crowded, pale rusty-brown. Spores ])urple-brown, almost 

 black when on white paper, on a black-ground lilac-violet. 

 (Fries.) 



Psilocyhe nuciseda. Fr. 



Pileus h-^ in. across, rather fleshy, convex, obsoletely 

 umbonate, expanded and sometimes depressed round the 

 umbo, pale-brown, when dry yellowish and minutely silky ; 

 gills adnate, broad, plane, brown then blackish-umber ; stem 

 about 1 in. long, li line thick, becoming thinner down- 

 wards, brownish, with white down, hollow; spores brown, 

 elliptical, 8 x 4 /a. 



Arjaricus (Psilocyhe) nucisedus, Fries, Syst. Myc. i. p. 293 ; 

 Cke., Hdbk., p. 210; Cke., Illustr., pi. 609 b. 



On involucres of beech, and fragments of various kinds of 

 wood. 



Stem slender, 1-2 in. long, apex as in Psilocyhe atro-rufus, 

 often pruinose. Pileus yellowish. With exactly the habit 

 of Tuharia inquilina, but differing in the spores. A similar 

 form occurs on hazel nuts, but eveiy part umber, and 

 yellowish clay-colour when dry. (Fries.) 



On involucres and rotten wood of beech. Differs from 

 P. atro-rufa in growing on wood, in the paler, tougher stem, 

 which is attenuated downwards, and white and downy at 



2 B 2 



