Fungus Flora of Mt. Hood 143 



cm. by 3-5(6) mm., equal or tapering slightly upwards, pure 

 white, glabrous, scurfy and substriate at apex, hollow, even, 

 strict but becoming flexuous, cartilaginous, easily splitting. 

 Odor and taste mild or slightly nutty. Spores elliptical, regular, 

 obtuse, smooth, 13-15 x 6-7 ix, purple brown; cystidia none; 

 sterile cells on edge of gills short and broadly nine-pin-shaped, i.e. 

 capitate, 45 X 12-15 (jl; basidia 4-spored, 30-32 x 12 ^t; upper 

 layer of pilous slightly differentiated, composed of 3-4 rows of 

 vesiculose, hj^aline cells, forming a subseparable pellicle, interior 

 trama slightly tinged with drab. 



On decayed leaves, needles and humus in mixed forest. 

 Gregarious. Mt. Hood, Oregon, October 12. Collected by C. H. 

 Kauffman. 



This differs from both of the preceding by lacking cystidia 

 on the sides of the gills. It is distinguished in general, by the 

 pure white universal veil, long white stems, non-striate pileus, 

 large spores and by the shape of the sterile cells on the edge of 

 the gills. It belongs to the section Fibrillosae. 



Psilocybe ochraeceps, sp. nov. — Pileus 1-3 cm. broad, at 

 first broadly oval, at length subhemispherical, obtuse or ob- 

 scurely short-pointed on centre, unexpanded, about 1 cm. high at 

 maturity, pelliculose, lubricous, subhygrophanous, at first "yel- 

 low-ochre" (R.) to ''antimony-yellow," glabrous and even, mar- 

 gin at first incurved and white-cortinate ; flesh concolor (moist), 

 whitish (dry), easily split radially, toughish across radial section. 

 Gills adnate-seceding, ascending, ventricose, rather broad, 3-5 

 mm., closely spaced at margin of pileus, subdistant near stem, 

 white at first, then "hair-brown," sprinkled by the spores, edge 

 entire. Stem 4-9 cm. long, 1-2.5 mm. thick, equal above the 

 tomentose-enlarged base, reddish-fuscous within, pale-fuscous be- 

 neath a distinct cortinate white coating of fibrils, narrowly white- 

 stuffed in the axis, very slightly viscid. Odor and taste slight, 

 subnauseous. Spores 8-9 x 4-5 fx, elliptic-oblong, smooth, ob- 

 tuse, purple-brown; cystidia none; sterile cells inconspicuous. 



Base of stems imbedded in humus or rotten wood. Grega- 

 rious. Mt. Hood, Oregon, September 28 and October 7. Col- 

 lected by C. H. Kauffman. 



