188 NORTH AMERICAN FLORA [VoLumE 10 
6. Pluteolus flavellus Murrill, sp. nov. 
Pileus fragile, convex to expanded, not umbonate, scattered, reaching 4 em. broad; surface 
glabrous, viscid when young, light-brownish-yellow, margin pallid, deeply striate, splitting 
with age; context thin, bright-yellow, the taste mild; lamellae adnexed, narrow, crowded, 
pale-lemon-yellow, fading in herbarium specimens and not showing coloration by the spores, 
finely serrulate on the edges; spores ellipsoid, smooth, ferruginous under the microscope, scanty, 
uniguttulate, 12-13 X 8-9; stipe equal, hollow, smooth, pruinose-furfuraceous, lemon- 
yellow with a whitish bloom, 4-7 cm. long, 2-4 mm. thick. 
Type collected in soil by the roadside in the New Vork Botanical Garden, June 13, 1900, F. S. 
Earle 90 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
7. Pluteolus expansus Peck, Ann. Rep. N. Y. State Mus. 46: 
139 (59). 1893. 
Agaricus expansus Peck, Bull. Buffalo Soc. Nat. Sci. 1: 52. 1873. 
Galera expansa Sacc. Syll. Fung. 5: 870. 1887. 
Pileus submembranous, expanded or centrally depressed, 2.5—-5 cm. broad; surface viscid, 
brownish-ocher, sometimes tinged with yellow and pink hues, plicate-striate on the margin; 
context thin, watery-yellow, the taste mild; lamellae crowded, just free or slightly attached, 
ferriuginous; spores 11 X 7 »; stipe long, equal, hollow, slightly pruinose, faintly striate, yellow, 
7.5~10 cm. long, 2 mm. thick. 
TYPE Locality: Sandlake, New York. 
Hasitat: On decaying wood or on the ground. 
DISTRIBUTION: New England and New York. 
8. Pluteolus brunneus Murrill, sp. nov. 
Pileus conic to fully expanded, umbonate, cespitose or gregarious, 3-5 cm. broad; surface 
smooth, glabrous, hygrophanous, striate, dull-brown, avellaneous on the umbo, margin entire 
to undulate, concolorous; lamellae adnexed, crowded, narrow, pallid to ferruginous, white 
and serrulate on the edges; spores ovoid, smooth, melleous under the microscope, uniguttulate, 
7-8.5 X 5-6 pw; stipe slender, equal, smooth, glabrous, milk-white, about 6 cm. long and 2 mm. 
thick. 
Type collected in sandy loam at Stockbridge, Massachusetts, September 3, 4, 1911, W. A. 
Murrill & W. Gilman Thompson (herb. N. Y. Bot. Gard.). , 
DistTrrsutIon: Known only from the type locality. 
9. Pluteolus mucidolens (Berk.) Earle, Torreya 3: 125. 1903. 
Agaricus mucidolens Berk. Lond. Jour. Bot. 4: 301. 1845. 
? Pluteolus Leatanus Sacc. Sylil. Fung. 11: 60. 1895, 
Pileus pluteiform, lobed, 5-8 cm. broad; surface glabrous, viscid, shining, fuliginous; 
context having the odor of decayed cheese; lamellae free; spores broadly subcymbiform, with a 
small nucleus, dull-ferruginous; stipe fibrillose, clothed with brownish fibers, 5 cm. or more 
long. 
TYPE LOCALITY: Ohio. 
Hasrtrat: On rotten logs. 
DisTRiBUTION: Known only from the type locality. 
10. Pluteolus cremeus Murtrill, sp. nov. 
Pileus conic to subexpanded, truncate, scattered, 1-2.5 em. broad; surface smooth, 
glabrous, uniformly cream-colored, margin entire, concolorous, not striate; context cream- 
colored, with farinaceous taste but without characteristic odor; lamellae free, crowded, rather 
broad, ventricose, fulvous at maturity, whitish and finely serrulate on the edges; spores ovoid, 
smooth, melleous under the microscope, 8-9 X 5-6 4; stipe cylindric, equal, cartilaginous, 
hollow, smooth, glabrous, whitish, 3-5 cm. long, 1.5-3 mm. thick. 
Type collected among sticks and leaves in rich soil under trees at Madera Creek, near Stan- 
ford University, California, December 21, 1902, James McMurphy 57 (herb. N. Y. Bot. Gard.). 
DisTRIBUTION: Known only from the type locality. 
