370 NORTH AMERICAN FLORA [VoLuUME 9 
lamellae adnate to sinuate, broad, subdistant, grayish-white: spores ellipsoid, smooth, hyaline, 
7-9 X 4-5 4: stipe long and slender, cylindric, smooth, glabrous, hollow, whitish-flocculent 
at the apex, 5 cm. long, 3 mm. thick. 
Type collected in rich soil in woods near Seattle, Washington, October 20-November 1, 1911, 
W. A. Murvill 655 (herb. N. Y. Bot. Gard.). . 
DIstRIBUTION: Known only from the type locality. 
72. Gymnopus griseifolius Murrill, sp. nov. 
Pileus convex, broadly umbonate, rather tough, solitary, 3 cm. broad; surface smooth, 
glabrous, moist, estriate, fuliginous, blackish on the umbo, margin somewhat paler, incurved 
when young, splitting with age: lamellae sinuate, very broad, especially near the margin, 
tapering inward, distant, griseous: spores ovoid or broadly ellipsoid, not angular, smooth, 
hyaline, copious, 7-9 X 4-6 4: stipe tough, short, cylindric, hollow, smooth, glabrous, finely 
pruinose at the apex, griseous above, fuliginous below, 2 cm. long, 5 mm. thick. 
Type collected on an old oak log at Glen Brook, Oregon, November 7, 1911, W. A. Murrill 755 
(herb. N. Y. Bot. Gard.). 
DistTRIBuTION: Known only from the type locality. 
73. Gymnopus musicola Murrill, sp. nov. 
Pileus thin, subfleshy, convex to expanded, gregarious, 1-1.5 cm. broad; surface white, 
smooth, minutely silky, subhygrophanous, margin entire, not striate: lamellae adnexed, 
crowded, narrow, white: spores not found: stipe cylindric, smooth, glabrous, white, tubular, 
stuffed, 2-3 cm. long, 1 mm. thick. 
Type collected on banana trash at Santiago de las Vegas, Cuba, September 8, 1904, F. S. Earle 
173 (herb. N. Y. Bot. Gard.). 
DisrRiIBution: Known only from the type locality. 
74. Gymnopus Boryanus (Mont.) Murrill. 
Agaricus (Collybia) Boryanus Berk. & Mont. Ann. Sci. Nat. IIT. 11: 235. 1849. 
Collybia Boryana Sacc. Syil. Fung. 5: 240. 1887. 
Pileus rather thin and tough, convex to plane, becoming depressed at the center, gre- 
garious, 5-8 cm. broad; surface pure-white, glabrous, smooth, margin concolorous, undulate, 
inflexed when young: context thin, white, edible; lamellae very narrow, crowded, white, 
sinuate to nearly free, separating from the stipe with age: spores ellipsoid, smooth, hyaline, 
4-6 X 3-4 u: stipe equal or enlarged at the apex, cartilaginous, solid, isabelline to testaceous, 
blackish at the base, rough with scales pointing upward, 3 em. long, 3-4 mm. thick. 
TYPE LOCALITY: Bahia, Brazil. 
HasiraT: On dead trunks. 
Disrrisution: Cuba, Jamaica, Dominica, and British Honduras; also in Brazil. 
75. Gymnopus albidulus (Pat.) Murrill. 
Collybia albidula Pat. in Duss, Enum. Champ. Guad. 49. 1903. 
Pileus fleshy, convex, orbicular, more or less sinuate, 4-8 cm. broad; surface white or 
reddish, glabrous, smooth: lamellae soft, unequal, adnate, broad, white: spores ovoid, 
hyaline, smooth, 8-10 X 5-6 u: stipe central, tough, cylindric, inflated at the base, glabrous, 
5 em. long. 
TYPE LOCALITY: Guadeloupe. 
Hasirat: On dead wood. 
DISTRIBUTION: Known only from the type locality. 
76. Gymnopus orizabensis Murrill, sp. nov. 
Pileus convex, gibbous, gregarious, 2 cm. broad; surface smooth, dry, glabrots, white, 
pale-yellowish at the center, the margin somewhat irregular, white: lamellae adnate, crowded, 
natrow, white: spores globose or subglobose, smooth, hyaline, 3-4 p: stipe equal, compressed, 
smooth, glabrous, whitish with a reddish-brown tint, 1.5 cm. long, 2 mm. thick. 
Type collected on a fallen dead banana leaf in an orchard at Ori i 14. 
1910, W. A. & Edna L. Murrill 816 (herb. N. V. Bot. Gard). Mearns eoUeey th 
DisTRIBUTION: Known only from the type locality. 
