206 NORTH AMERICAN FLORA [VoL.uME 10 
46. Gymnopilus pallidus Murrill, Mycologia 4: 252. 1912. 
Flammula pallida Murrill, Mycologia 4: 262. 1912. 
Pileus irregularly convex to plane, umbonate, 3-7 cm. broad; surface dull-yellowish- 
gray, dry, smooth, glabrous, margin inflexed; context hyaline to grayish, watery, without 
characteristic taste or odor; lamellae adnexed, crowded, broad, falcate, grayish-white to fulvous; 
spores broadly ellipsoid, smooth, ochraceous-ferruginous under the microscope, fulvous in 
mass, 8-9 X 3.5-4.5 4; stipe stout, pallid, hollow, fibrillose, 3-4 cm. long, 5-7 mm. thick; 
veil slight, evanescent, leaving no annulus. 
Type Locality: New Westminster, British Columbia. 
Hapsirar: On the ground under conifers. ; 
DIstTRIBUTION: Known only from the type locality. 
47, Gymnopilus viscidissimus Murrill, Mycologia 4: 256, 1912. 
Flammula viscidissima Murrill, Mycologia 4: 262, 1912. 
Pileus conic, not fully expanding, gregarious, 2 cm. broad; surface smooth, glabrous, very 
slimy, isabelline with an incarnate tint, usually a little darker at the center; lamellae sinuate- 
adnate, broad, ventricose, rather crowded, pale-isabelline, becoming darker with age; spores 
ovoid, pointed, often one-sided, very pale with a fuscous tint under the microscope, dark- 
fulvous in mass, 7 X 3-4 uw; stipe equal or slightly larger below, stuffed, whitish, furfuraceous 
above, fibrillose below, rather tough, 6 cm. long, 3.5 mm. thick. 
TYPE LocaALity: Mill City, Oregon. 
Hasrrat: Among mosses and humus on the ground in woods and in a peat bog. 
DISTRIBUTION: Washington and Oregon. 
48. Gymnopilus spinulifer Murrill, Mycologia 4: 254. 1912. 
Flammula spinulifer Murrill, Mycologia 4: 262. 1912. 
Pileus convex, umbonate, at length expanding and losing the umbo, scattered or clustered, 
3.5-8 cm. broad; surface smooth, glabrous, viscid, light-yellow with bay center, margin entire; 
context cremeous, without characteristic taste or odor; lamellae adnate or very slightly sinuate, 
plane, of medium breadth and distance, yellowish to ferruginous; spores ovoid to ellipsoid, 
smooth, pale-melleous under the microscope, dark-fulvous in mass; cystidia hyaline, flask- 
shaped, with short, narrow neck and long stalk, 70 X 15 y; stipe equal, hollow, subglabrous, 
with conspicuous mycelium at the base, yellowish-white or tinged with bay, 5-9 cm. long, 
7-11 mm. thick; veil arachnoid, whitish, leaving a small ring of fibrils near the apex of the stipe. 
Type Locality: Portola, California. 
Hapirat: On the ground among leaves under redwoods. 
DIistR1BvuTION: California. 
49. Gymnopilus subcarbonarius Murrill, Mycologia 4: 256. 1912. 
Flammula subcarbonaria Murrill, Mycologia 4: 262. 1912. 
Pileus convex to expanded, rarely umbonate, rather thin, gregarious, 3-4 cm. broad; 
surface smooth, glabrous, very viscid, red to bay, yellow on the margin, sometimes darker at 
the center; lamellae adnate or sinuate, not crowded, rather narrow, inserted, pale-yellow to 
ochraceous or fulvous; spores ellipsoid, smooth, melleous under the microscope, fulvous in 
mass, 7 X 3-4 y; stipe short, somewhat enlarged below, white, scaly, hollow, 3-4 cm. long, 
4-8 mm. thick; veil fibrillose, evanescent, not leaving an annulus, 
TYPE LOCALITY: Berkeley, California. 
Hasirat: On the ground, 
DistRIBUTION: Known only from the type locality. 
50. Gymnopilus foedatus (Peck) Murrill, Mycologia 4: 257. 1912. 
Hebeloma foedatum Peck, Bull. Torrey Club 22: 202. 1895. 
Pileus fleshy, convex, becoming plane or centrally depressed, 3.5-7.5 cm. broad; surface 
glabrous, very viscid or glutinous, reddish-cinnamon; context yellowish-white; lamellae sub- 
ventricose, slightly decurrent, scarcely sinuate, cinnamon-colored, becoming mummy-brown; 
