274 NORTH AMERICAN FLORA [VoLuME 9 
spores subfusiform, 12-15 x 4 u: stipe slender, tough, hollow, velvety-pubescent aud brown 
below, less densely pubescent and paler above, 4-6 cm. long, 1-2 mm. thick. 
TYPE LOCALITY: Woodside, California. 
Hasrrat: Upon dead leaves of Quercus densiflora. 
DistTrRIBpution: Washington, Oregon, and California. 
102. Marasmius elongatipes Peck, Bull. Buffalo Soc. Nat. Sci. 4: 
181. 1883. 
Marasmius longipes Peck, Ann. Rep. N.Y.State Mus. 26:66. 1874. Not M.longipesMont. 1854. 
Marasmius hirtipes Clements, Bot. Surv. Neb. 4:20. 1896. 
Pileus thin, submembranous, convex, 8-13 mm. broad; surface glabrous, finely striate, 
fulvous-red: lamellae narrow, adnexed, not crowded, white: spores 7-8 X 3.5 nu: stipe equal, 
long, slender, radicate, hollow, brown or alutaceous, white and pruinose to white-tomentose 
at the apex, 5-13 cm. long, 1 mm. thick. 
‘TYPE LOCALITY: New York. 
Hasrrat: Upon ground among leaves. Jat hens 
DistRiBution: New England to Virginia and west to the Mississippi Valley. 
103. Marasmius semihirtipes Peck, Bull. Buffalo Soc. Nat. Sci. 1: 
57. 1873. 
Pileus thin, tough, convex to nearly plane or depressed, 1-2 cm. broad; surface glabrous, 
reddish-brown, becoming alutaceous, the disk darker, margin sometimes striate: lamellae 
slightly adnexed, subdistant, not narrow, white: spores 8-9 X 4.5 wu: stipe equal, even or 
finely striate, tubular, reddish-brown, often nearly black in dry plants, glabrous above, velvety- 
tomentose toward the base, 3-5 em. long, 1-2 mm. thick. 
Type Locatrry: West Point, New York. 
Hasitat: Upon ground among fallen leaves, twigs, etc. . . 
DistRIBUTION: New England to Virginia and west to Minnesota, Missouri, and Colorado. 
104. Marasmius castaneicolor Pennington, sp. nov. 
Pileus submembranous, broadly convex to plane and slightly depressed, 8-14 mm. broad; 
stirface smooth, even, dry, brown or chestnut: lamellae adnexed, rather close, not broad, white, 
becoming only slightly yellow in dried plants: spores 7 X 3.5 u; cystidia 15-18 X 2.5-3 uw: 
stipe white-pruinose to tomentose, often tawny at the base, 2-3 cm. long, 1-1.5 mm. thick. 
Type collected on dead oak leaves at St. Martinsville, Louisiana, July 24, 1888, A. B. Langlois 
1426 (herb. N. Y. Bot. Gard.). 
DIsTRIBUTION: Louisiana. 
105. Marasmius biformis Peck, Bull. N. Y. State Mus. 67:25. 1903. 
Marasmius longistriatus Peck, Bull. N. Y. State Mus. 105: 25, 1906. 
Pileus submembranous, thi, campanulate or nearly plane, often becoming umbilicate, 
gregarious, 8-16 mm. broad; surface glabrous, hygrophanous, striatulate when moist, rugose- 
striate when dry, bay-red or pale-chestnut when moist, grayish when dry: lamellae adnate and 
joined together at the stipe, rather close, not broad, grayish or creamy-yellow: spores 5-6 
X 3.5-4 4: stipe even, slender, brown when moist,.cinereous when dry, densely downy- 
pubescent, the base often tawny, 2.5 cm. long, 1 mm. thick. 
Types LocaLity: Sandlake, New York. 
Hasrrat: Upon ground among coniferous trees. 
DISTRIBUTION: New York, Michigan, and Ohio. 
ILLUSTRATIONS: Bull. N. Y. State Mus. 105: pl. S, f. 1-4. 
106. Marasmius contrarius Peck, Bull. N. VY. State Mus. 150: 34. 
1911. 
Pileus submembranous, tough, broadly convex or nearly plane, gregarious, 4-10 mm. 
broad; surface often uneven, glabrous, whitish or white with brown center, becoming grayish 
