Murrill: Agaricaceae of the Pacific Coast 297 



equal or slightly bulbous, glabrous, shining, white-floccose at 

 the top, stuffed or hollow, cream-colored, with a narrow double 

 annulus which at length disappears ; spores subglobose, 5-6 /x X 

 4-5 Z^- 



Pileus 4-5 cm. broad ; stem 3.5-6 cm. long, 8-1 1 mm. thick. 

 Described from specimens collected by Baker under oaks at 

 Claremont, California. 



10. Agaricus subnitens Peck, Bull. Torrey Club 36: 335. 



1909 



Pileus fleshy, broadly convex or slightly depressed in the 

 center, densely fibrillose, shining on the margin, cream- or tan- 

 colored ; flesh white ; lamellae thin, close, free, pink becoming 

 dark-brown ; stem equal or slightly thickened below, stuffed or 

 hollow, white and fibrillose above, cream-colored and shining 

 below with a finally deciduous brown but white-margined annu- 

 lus; spores ellipsoid, purplish-brown, 6-8/xX4-5)^- 



Pileus 4.5-9.5 cm. broad; stem 8.5-13 cm. long, 1-1.5 cm. thick. 



Described from specimens collected by Baker under oaks at 

 Claremont, California. Apparently not sufficiently distinct from 

 A. hivelatus. 



II. Agaricus bivelatoides sp nov. 



Pileus truncate-conic to convex with a large umbo, not fully 

 expanding, drying thin, 4 cm. broad ; surface minutely imbricate- 

 fibrillose, dry, uniformily pale-avellaneous throughout; lamellae 

 free, crowded, ventricose, becoming fuliginous ; spores ellipsoid, 

 smooth, purplish-brown, 5X2.5/^; stipe enlarging below, with 

 very small bulb, subconcolorous, minutely fibrillose, 6 cm. long, 

 4-6 mm. thick; annulus superior, simple, fixed, persistent, white. 



Type collected on the ground under redwoods near Seattle, 

 Washington, October 20-November i, 191 1, W. A. Murrill 

 Related to A. hivelatus Peck. 



12. Agaricus comptuloides sp. nov. 



Pileus small, thin, conic to convex, umbonate, solitary, 3 cm. 

 broad; surface rosy-isabelline to whitish, pinkish-brown to ful- 

 vous on the umbo, dry, slightly fibrillose-scaly, margin entire, 

 concolorous ; lamellae free, crowded, plane, becoming fuliginous ; 

 spores ellipsoid, smooth, pale-purplish under a microscope, 5 X 

 2.5 /X, ; stipe smooth, polished, enlarged and white below, pinkish 



