Murrill: Agaricaceae of the Pacific Coast 299 



scaly, whitish with a rosy tint; lamellae free, crowded, narrow, 

 plane, pallid; spores ovoid, smooth, hyaline to pale-umbrinous 

 under a microscope, 6-7 X 3-5-4 />»•; stipe eccentric, fusiform, 

 white, polished, hollow, 6X2 cm. ; annulus near the base, white, 

 not conspicuous. 



Type collected on a clay bank by the roadside at 800 ft. ele- 

 vation on the Santa Cruz Mountains near Palo Alto, California, 

 November 25, 191 1, W. A. Murrill & L. R. Abrams 122/. Dis- 

 torted, owing to its position on the side of the bank. 



16. Agaricus subrufescentoides sp. nov. 



Pileus convex to subexpanded, slightly umbonate, thick and 

 fleshy, solitary, reaching 10 cm. broad; surface dry, smooth, 

 whitish, densely covered with imbricate, delicately-fibrillose, 

 rufescent scales, except at the center, where it is glabrous and 

 fulvous to bay; lamellae free, rather close, ventricose, palhd to 

 pale-purplish ; spores narrowly ellipsoid, obliquely pointed at the 

 base, smooth, pale purplish-brown, 6-7 X 3-5 ; stipe tapering 

 upward, not bulbous, glabrous, white, staining slightly reddish- 

 brown when bruised, 7 cm. long, 1-1.5 cm. thick; annulus ample, 

 membranous, simple, white, staining slightly reddish-brown, fixed, 

 superior. . ^ 



Type collected on the ground in woods near Seattle, Washing- 

 ton, October 20-November i, 191 1, W. A. Murrill 591. Also 

 collected near Tacoma, Washington, October 26, 191 1, W. A. 

 Murrill J 20. 



17. Agaricus McMurphyi sp. nov. 



Pileus rather thick and fleshy, convex to expanded, solitary, 15 

 cm. broad ; surface moist, smooth, light-gray with purplish-brown 

 fibrils, margin somewhat ragged with portions of the veil ; con- 

 text white, not changing when bruised, with taste and odor simi- 

 lar to that of A. campestris; lamellae free, several times inserted, 

 rather broad, ventricose, crowded, becoming very dark brown ; 

 spores ellipsoid, smooth, dark-purplish under a microscope, 5-6 

 X 3-3-5 ; stipe subequal with a prominent bulb, subglabrous, 

 stuffed, whitish below to purplish-brown above, 13 cm. long, 

 2 mm. thick; veil thin, membranous, leaving a permanent, 

 median annulus. 



Type collected on the ground under redwoods near Searsville 

 Lake, California, January 6, 1903, James McMurphy 55. 



