358 NORTH AMERICAN FLORA [VoLumE 9 
17. Gymnopus carnosus (Curt.) Murrill. 
Agaricus carnosus Curt. Fl. Lond. fase. 5:71. 1777-87. 
Agaricus maculatus Alb. & Schw. Consp. Fung. 186. 1805. Not A. maculatus Schaeff. 1774, 
Agaricus (Tricholoma) Limonium Peck, Bull. Buffalo Soc. Nat. Sci. 1:43. 1873. 
Collybia maculata Quél. Champ. Jura Vosg. 330. 1873. 
Pileus fleshy, firm, convex or nearly plane, 5-10 cm. broad; surface even, glabrous, white 
or whitish, sometimes varied with reddish spots or stains: context white; lamellae narrow, 
crowded, adnexed, sometimes nearly or quite free, white or whitish: spores subglobose, 4-6 un, 
sometimes showing a slight apiculus at one end: stipe striate, white, generally stout, firm, 
equal or slightly swollen in the middle, commonly narrowed at the base and praemorsely 
radicate, often curved at the base, rarely slightly thickened and blunt, 5-10 cm. long, 6-12 
mm. thick. 
TYPE Locality: England. 
Hasitar: On the ground or on much decayed wood in woods. 
DIsTRIBUTION: Canada to North Carolina and west to Indiana; also in Europe. 
ILLUSTRATIONS: Curt. Fl. Lond. fase. 5: f. 71; Hussey, Ul. Brit. Myc. 2: pl. 20; Mycologia 6: 
pl. 130; Sow. Engl. Fungi pl. 246. 
18. Gymnopus tenuifolius Murrill, sp. nov. 
Pileus convex to plane, scarcely umbonate, very light in weight when dry, solitary or 
gregarious, 6-8 cm. broad; surface smooth, glabrous, hygrophanous, sordid-whitish or dull- 
isabelline, fuliginous on the disk because of a tendency to deliquesce, sometimes becoming 
entirely fuliginous on drying, margin concolorous, striate: context very thin, translucent in 
dried specimens; lamellae rounded behind, nearly free, distant, ventricose, very broad and 
exceedingly thin, pale-clay-colored, somewhat marbled when dry, becoming fuliginous in some 
specimens: spores ellipsoid, smooth, hyaline, 6-7 X 3-44: stipe typically long, but quite 
short in Adirondack specimens, cylindric, hollow, smooth, glabrous, milk-white or grayish- 
white, usually about 8 cm. long and 1 cm. thick. 
Type collected in deep leaf-mold in deciduous woods in the New York Botanical Garden, July 
29, 1915, W. A. Murrill (herb. N. Y. Bot. Gard.). 
Hapsitat: Among leaves in woods. 
DistTRIBUTION: New York. 
19. Gymnopus Glatfelteri Murrill, sp. nov. 
Pileus convex to subexpanded, gregarious to subcespitose, 5-8 cm. broad; surface glabrous, 
rivulose, white or pale-tawny, darker on the disk, which may be reddish-fulvous, margin 
pallid, striate when dry: context thin, white, with a tendency to deliquesce; lamellae sinuate- 
adnexed, broadest behind, pallid, subcrowded, with a tendency like the context to deliquesce: 
spores ellipsoid, smooth, hyaline, 6-7 X 4-5 u: stipe very long, cylindric, equal, hollow, 
flexuous, becoming twisted, striate and pulverulent at the apex, slightly scurfy at the base, 
becoming glabrous, 10-15 em. long, about 4 mm. thick. 
Type collected among leaves in a deep ravine near St. Louis, Missouri, July 14, 1902, N. M 
Glatfelter 888 (herb. N. Y. State Mus.). 
DISTRIBUTION: Missouri and Ohio. 
20. Gymnopus physcopodius (Mont.) Murrill. 
Agaricus (Collybia) physcopodius Mont. Syll. Crypt. 107. 1856. 
Collybia physcopodia Sacc. Syll. Fung. 5: 240. 1887. 
Pileus subfleshy, campanulate to expanded, umbonate, cespitose, 3~4 cm. broad; surface 
glabrous, vitelline or croceous: lamellae sinuate-adnexed, crowded, linear-lanceolate, yellowish: 
spores hyaline, ovoid, 5 » long: stipe smooth, not striate, concolorous, becoming brown when 
dry, hollow, with an ovoid, bulbous base, 2.5-4.5 em. long, 2-6 mm. thick. 
Typs Locauity: Columbus, Ohio. 
Haprrat: On the ground in woods. 
DistRiIBUTION: Known only from the type locality. 
