162 OUTLINES OF BRITISH FUNGOLOGV. 



** frills jilane, very broad be/iind, somewhat decnrrent. 



819. A. (Psilocybe) ammophilus, Z)?«*. and Mont. ; pileus 

 somewhat fleshy, hemispherical, theu umbouate ; stem 

 hollow, buried half-way in saud, base clavate ; gills decur- 

 rent with a tooth, smoky, black-pulverulent. 



On sandy ground, on the sea-shore. St. Andrews. 



820. A. (Psilocybe) coprophilus, Bull (p. 171) ; 1 in. 



821. A. (Psilocybe) buUaceus, Bull. (p. 172) ; ^\ in. 



822. A. (Psilocybe) physaloides, ii«//. (p. 172) ; 3-4 in. 



823. A. (Psilocybe) atro-rufus, Schccff. ; pileas black- 

 rufous or purple-fuscous, then pale, slightly fleshy, hemi- 

 spherico-convex, obtuse, smooth, sometimes striate at margin ; 

 stem thin, fistulose, equal, at first somewhat fibrillose, then 

 smooth, pallid date-brown, slightly pruinose at apex ; gills 

 adnate, somewhat decurrent, triangular, umber or purple- 

 umber. 



In mixed wood. Glamis. 



824.. A. (Psilocybe) nucisedus, Fr. ; pileus slightly fleshy, 

 light yellowish, then yellow, convex, obsoletely umbonate, 

 even, slightly silky when dry ; stem fistulose, slender, pallid, 

 somewhat attenuated downwards, becoming fuscous, white- 

 villous at base; gills adnate, broad, plane, fuscous, then 

 umber-hlack. 



On beech-mast and among chips. West Farleigh, Kent. 



*** Gills someirhat linear, asceudiiuj. 



825. A. (Psilocybe) comptus, Fr.: pileus 1-1 i in., 

 pallid, then ochraceous, somewhat membranaceous, conical, 

 then expanded, striate, sprinkled with shining spots, some- 

 what crenulate at margin ; stem fistulose, flexuose, even, 

 silky- shining; gills adnate, ascending, distant, rosy-umber. 



In woods, among grass. 



