414 NORTH AMERICAN FLORA [VoLuME 9 
74. Clitocybe avellaneialba Murrill, Mycologia 5: 207. 1913. 
Pileus large, thin, slightly umbonate, becoming infundibuliform, gregarious to cespitose, 
reaching 10 cm. or more broad; surface hygrophanous, avellaneous to dark-fuliginous, sub- 
zonate, innate-radiate-fibrillose, hispid-fibrillose at the center, margin entire, concolorous: 
context thin, white, of mild flavor; lamellae short-decurrent, rather crowded and narrow, white: 
spores ellipsoid, pointed at both ends, smooth, hyaline, 7-8 X 5 u: stipe tapering upward, 
whitish-mycelioid at the base, avellaneous, finely fibrillose to glabrous, solid or hollow with a 
tough rind, reaching 10 cm. or more long and 1 cm. thick. 
TYPE Locauity: Seattle, Washington. 
Hasrrat: In humus on the ground in woods or among leaves and sticks under redwoods. 
DistRIBUTION: Washington and California. 
75. Clitocybe oculata Murrill, Mycologia 5: 210. 1913. 
Pileus convex to plane, slightly depressed at the center, thin, solitary, reaching 4.5 cm. 
broad; surface dry, smooth, finely furfuraceous, avellaneous, fuliginous at the center, margin 
very thin, entire, even, concolorous: lamellae short-decurrent, distant, white: spores broadly 
ovoid, smooth, hyaline, granular, 9-12 X 7-8 u: stipe equal, twisted, hollow, with a tough rind, 
furfuraceous, whitish with a pale-avellaneous tint, 6 cm. long, 5 mm. thick. 
TYPE LOCALITY: Mill City, Oregon. 
Hasitat: In low woods, probably attached to buried wood. 
DIstTRIBUTION: Known only from the type locality. 
76. Clitocybe oreades Murrill, Mycologia 5: 210. 1913. 
Pileus large, fleshy, convex, becoming plane or slightly depressed with age, usually growing 
in circles, 6-10 cm. broad, very thick at the center; surface smooth, somewhat viscid when 
moist, glabrous, shining, cinereous to murinous, sometimes covered with a whitish mold, 
margin entire, concolorous, deflexed when young, at times becoming upturned and more or 
less split with age: context thick, white, with an agreeable but not characteristic taste and 
odor; lamellae short-decurrent, varying to adnate, especially when young, crowded, narrow, 
arcuate, white or pale-yellowish-white: spores ellipsoid, smooth, hyaline, 6-8 X 3-4 u: stipe 
very large, enlarged or bulbous below, fleshy, white or slightly cinereous, smooth, minutely 
tomentose or fibrillose above, solid, 10-15 cm. long, 1.5-2.5 cm. thick, reaching 4 cm. or more 
at the base. 
TYPE LOCALITY: Searsville Lake, California. 
HapsitatT: In humus under redwoods. 
DISTRIBUTION: Oregon, Washington, and California. 
77. Clitocybe violaceifolia Murrill, Mycologia 5: 213. 1913. 
Pileus convex, somewhat gibbous, solitary, 3 em. broad; surface slightly viscid when moist, 
smooth, glabrous, grayish-violet tinged with brown at the center, margin entire, slightly paler: 
lamellae very narrow, adnexed to slightly decurrent, rather crowded, arcuate, pale-violet: spores 
ellipsoid, smooth, hyaline, 7-8 X 3.5-4.5 4: stipe equal, fleshy, solid, smooth, glabrous, 
grayish-violet, mycelioid at the base, 3 cm. long, 6 mm thick. 
TYPE LOCALITY: Salem, Oregon. 
HasitaT: On decaying wood. 
DISTRIBUTION: Known only from the type locality. 
78. Clitocybe murinifolia Murrill, Mycologia 5: 210. 1913. 
Pileus convex to slightly depressed, rather thin, solitary, about 2 em. broad; surface 
smooth, glabrous, smoky-brown, margin thin, slightly lobed, concolo:ous, inflexed on drying, 
pruinose when young: lamellae short-decurrent, not crowded, rather narrow, murinous: spores 
globose, smooth, hyaline, 2-3 u: stipe fleshy, slightly tapering upward, smooth, glabrous, 
murinous, solid, whitish-tomentose at the base, 2 cm. long, 7-9 mm. thick. 
TYPE LOCALITY: Seattle, Washington. 
Hasitat: In humus in woods. 
DistriBuTion: Known only from the type locality. 
