Murrill: Agaricaceae of Pacific Coast 
221 
Melanoleuca secedifolia sp. nov. 
Pileus thick, fleshy, convex, not fully expanding, solitary, 
reaching 9 cm. broad; surface smooth, glabrous, somewhat viscid 
when young, pure-white, subshining, margin entire, concolorous, 
indexed on drying; lamellae broad, crowded, slightly sinuate, ven- 
tricose, becoming widely separated from the stipe, white changing 
to dull-brownish on drying; spores subglobose, smooth, hyaline, 
5-6 ft; stipe equal, much enlarged at the base, white, smooth, 
glabrous, solid or stuffed, 8 cm. long, 2.5 cm. thick, about 4 cm. 
at the base. 
Type collected on the ground near Salem, Oregon, January, 
1911, Morton E. Peck 54. 
Melanoleuca striatella sp. nov. 
Pileus convex and gibbous when young, becoming depressed 
with age, firm, fleshy, scattered, 5-7.5 cm. broad ; surface smooth, 
subglabrous, pale-mouse-gray, very minutely striate except at the 
center, margin quite thick, entire, concolorous ; context grayish- 
white with farinaceous taste, quite thick at the center, but very 
thin toward the margin ; lamellae sinuate to adnexed, broad, plane 
or ventricose, close, white ; spores globose, smooth, hyaline, 5-7 ju. ; 
stipe cylindric or slightly compressed, equal, longitudinally striate, 
whitish, solid, 3-6 cm. long, 1-2 cm. thick. 
Type collected on the ground under live oaks at Stanford Uni- 
versity, California, January, 1903, James Mcl\Inrphy 2p'. 
Melanoleuca sublurida sp. nov. 
Pileus firm, conic to convex with prominent umbo, solitary, 7 
cm. broad; surface smooth, minutely squamulose, whitish with a 
caesious tint, the center' black, smooth, and shining, margin entire 
or slightly undulate, white, deflexed on drying;, lamellae sinuate, 
plane, broad, whitish, distant ; spores subglobose, smooth, hyaline, 
3-4 /x; stipe subequal, dry, white with grayish, farinaceous scales, 
solid, about 6 cm. long, and 1.5 cm. thick. 
Type collected in soil in woods at Glen Brook, Oregon, No- 
vember 7, 1911, W. A. Murrill 75/. This species is very similar 
to specimens of T. luridnm sent from Sweden by Romell. 
Melanoleuca submulticeps sp. nov. 
Pileus large, fleshy, convex to plane, becoming depressed with 
age, densely cespitose, reaching 10-12 cm. broad; surface smooth. 
