



PSATHYRA 415 



1332. P. tenuicula Karst. Tenuicula, slight. 

 P. whitish, then livid, or smoky, pale when dry, campanulate, then 



somewhat expanded, everywhere striate. St. hyaline, pellucid, usually 

 wavy. Gills pallid, then grey, adnate. Flesh, very thin. Spores, ellip- 

 tical, 5-6 x 3fj,. 



II. P. campanulato-convex, flattened, smooth, or atomate; 

 gills piano- or arcuato-adfixed. Veil none. 



1333. P. spadiceo-grisea (Schaeff.) Fr. Boud. Icon. 1. 135, as Psilocybe 

 spadiceo-grisea (Schaeff.) Fr. Spadicea, date brown ; grisea, grey. 



P. 3-6 cm., date brown, whitish grey when dry, very hygrophanous, 

 submembranaceous, very fragile, campanulate, then convex, at length 

 flattened, obtuse, or with a darker umbo, smooth ; margin striate. St. 

 4-7-5 cm. x 4-6 mm., whitish, shining, equal, apex striate, sometimes 

 pulverulent, base slightly swollen and white hairy. Gills umber fuscous, 

 adnexed, attenuated behind, at first ascending, narrow, crowded. Flesh 

 more or less fuliginous, becoming whitish, rather thick. Spores brownish 

 purple, oblong-elliptic, 8-11 x 4-6 //,, 1-multi-guttulate. Cystidia "on 

 surface of gill ventricose-cylindrical, 40-50 x 9-1 2 p, on edge of gill 

 vesiculose-clavate, 30-40 x 15-20 /u," Rick. Taste mild. Edible. 

 Solitary, or gregarious. On stumps, or at the base of trees. Woods, 

 and plantations. March Nov. Uncommon, (v.v.) 



1334. P. obtusata Fr. Cke. Illus. no. 615, t. 593. Obtusata, blunted. 

 P. 1-3 cm., date brown fuscous, or umber fuscous, paler at the margin, 



somewhat shining, submembranaceous, conical, then convex, at length 

 flattened, obtuse, wrinkled, disc even, hygrophanous; margin striate. 

 St. 5-7-5 cm. x 2-4 mm., whitish, equal, round, fragile, fibrilloso- 

 silky. Gills cinereous fuscous, then umber, adnate, broad, distinct, 

 subdistant. Flesh concolorous, very thin. Spores "reddish brown 

 under the microscope, elliptical, 9-10 x 5/u,, smooth. Cystidia lan- 

 ceolate-flask-shaped, 45-60 x 12-15/u," Rick. Solitary, or caespi- 

 tose. On oak trunks, and on the ground. Woods, and hedgerows. 

 Aug. Nov. Uncommon. 



var. minor (Vaill.) Fr. Minor, smaller. 



Differs from the type in its smaller size. 



1335. P. neglecta Massee. Neglecta, overlooked. 

 P. 6-8 mm., pale ochraceous, white when dry except the disc, convex, 



then almost plane, smooth, atomate when dry. St. 2-3 cm. x 1-2 mm., 

 white, tinged with rufous below, pellucid, rather wavy, smooth. Gills 

 purple brown at maturity, slightly attached, rather broad, ventricose, 

 crowded. Spores purple brown, elliptical, 12 x 6/u,. On the ground. 

 Gardens. Oct. Nov. Rare. 



