CLASSIFICATION - OF AGARICS 281 



Arbor, New Richmond. May, June and September. Not infrequent 

 in wet weather. 



Agrees well with the Friesian description. The gilla are perhaps 

 not truly subdistanl bu1 rather close. The color of the cap changes 

 from umber to nitons then pale tan. The slender, white, equal 

 Sinn is ;i marked character. When moist, the cap is Bomewhat 

 shining, with a gelatinous appearance, bul there \s no pellicle and 

 the i rama is homogeneous. 



273. Psilocybe arenulina Pk. 

 \. Y. State Mils. Rep. 30, 1878. 



PILEUS 1 ■"« cm. broad, convex then plane, glabrous, hygropha 

 nous, dark broicn and coarsely striaU on margin when moist, ding} 

 white when dry, margin a1 firsl incurved and ftbrillose-flocculose. 

 FLESH thin, concolor. GILLS adnate, close, not broad, ventrico 

 becoming brownish then purple-brown and dotted by spore-mass 

 STEM 3-5 cm. long, L.5-2 nun. thick, tapering upward, hollow, whit- 

 ish, the lower half covered with adhering sand and sometimes da 

 vale. SPORES L0-llx5 rnicr., elliptical, smooth, purple-brown 

 under the microscope. CYSTIDIA aone. 



Gregarious or subcaespitose, on sandy soil. Port Huron. New 

 Richmond. September-t >ctober. 



This seems to lie close to /'. inntnophila Mont, (see illustration in 

 Hard's Mushrooms, Pig. 268, p. 330, L908). The B pores of thai 

 species appear to be too large, and the habil is different. At least 

 our plants were not like those figured by Hard. 



274. Psilocybe agrariella At k. 

 Ann. M\c. Vol. VII, p. 374, 1909. 



PILEUS L-3.5 cm. broad, campanulate-convex, obtuse, then ei 

 panded, fragile, hygrophanous, obscurely rivulosi or striatulate and 

 umber-brownish to pale rufous when moist, glabrous, pallid 

 ochraceous or whitish when dry, margin at first incurved and deli- 

 cately white-silky from the evanescent veil. FLESH thin, nearly 

 homogeneous, of fioccose cells, concolor. <;iM,s adnate, Beceding, 

 moderately broad, ventricose, close, al length purplish umber, edge 

 white-fimbriate. STEM I r. cm. long, 3 I mm. thick, equal, fro 

 white, even, apex pruinose, glabrous, Btuffed booh hollow, b 



