Part 4, 1915] AGARICACEAE 279 
decurrent, subdistant, thin, arcuate, pale-yellow: spores 6-7 X 3-44: stipe tough, elastic, 
hollow, blackish-brown, covered with tawny tomentum, which forms minute, meal-like patches 
at the apex and a more or less dense mat at the base, 2-6 cm. long, 1-1.5 mm. thick. 
TYPE Locality: Moscow, Idaho. 
Hasitat: Upon vegetable mold, often among grass or mosses. 
DisTRIBUTION: Canada to Louisiana; also in Europe. 
ILLUSTRATIONS: Bres. Fungi Trid. gl. 41; Britz. Hymen. Sudb. pl. 9, f. 3, Marasm. f. 18; 
Cooke, Brit. Fungi pl. 1134 (1081) B; Sow. Engl. Fungi 1. 163. 
ExsiccaTr: Clements, Crypt. Form. Colo. 182 (as M. velutipes); Rav. Fungi Am. 467 (as M. 
flammans Cooke; not M. fammans Berk. 1856); Roum. Fungi Sel. 6648; Thiim, Myc. Univ. 506. 
126. Marasmius alienus Peck, Bull. N. Y. State Mus..139: 25. 1910. 
Pileus thin, tough, convex, 6-10 mm. broad; surface dry, subpruinose, pallid or pale- 
buff; margin thin, straight, striate in dry plants: lamellae subarcuate, slightly decurrent, 
distant, creamy-yellow, becoming brownish: spores 8-10 X 4—5 yu, oblong or narrowly ellipsoid: 
stipe firm, slender, hollow, pallid, subpruinose, 2.5-5 cm. long, 0.5-1 mm. thick. 
TYPE LocaLIty: Fine, St. Lawrence County, New York. 
HasitaT: Mossy, prostrate trunks in woods. 
DisTRIBUTION: Known only from the type locality. 
127. Marasmius felix Morgan, Jour. Myc. 12: 2. 1906. 
Pileus membranous, convex then expanded, 2-6 mm. broad; surface glabrous, rufescent, 
pale-rufous or nearly white to testaceous, becoming darker in drying, margin faintly plicate- 
rugose: lamellae adnate, unequal, some of them forked, distant, rather narrow, white: spores 
ovoid-oblong, apiculate, 7-9 X 3-4 yw: stipe elongate, capillary, insititious, brown or blackish, 
white at the apex, minutely pubescent, 2-8 cm. long. 
TYPE LOCALITY: Preston, Ohio. 
Hasrrar: On old leaves of Platanus. 
DISTRIBUTION: Ohio and Michigan. 
128. Marasmius badiceps Peck, Bull. Torrey Club 24: 142. 1897. 
Marasmius badius Peck, Bull. Torrey Club 22: 487. 1895. Not M. badius Berk. & Curt. 1868. 
Pileus thin, convex, even, 6-15 mm. broad; surface glabrous, bay-brown or reddish- 
brown, fading in dry plants: lamellae narrow, adnate, subdistant, whitish: spores broadly 
ellipsoid, 5 X 3 yu: stipe glabrous, hollow, blackish-brown, not fading in dry plants, 2.5 cm. 
long, 2 mm. thick. 
‘TYPE LOCALITY: Kansas. 
Hasitat: Upon decaying wood in wet ground. 
DISTRIBUTION: Kansas and: Kentucky. 
129. Marasmius leptopus Peck, Bull. N. Y. State Mus. 67:25. 1903. 
Pileus thin, broadly convex or nearly plane, 6-10 mm. broad; surface glabrous, reddish- 
brown; margin obscurely or rugosely striate: lamellae adnate, close, thin, narrow, white: 
spores oblong or narrowly ellipsoid, 7.5-9 X 3-4 u: stipe slender, inserted, hollow, whitish or 
pallid, glabrous, 2.5—4 cm. long, 1 mm. thick. 
TYPE LOCALITY: Botanical Garden, Bronx Park, New York. 
Hasrrar: Fallen leaves. 
DIstTRIBUTION: New England to Virginia and west to the Mississippi Valley. 
130. Marasmius ramealis (Bull.) Fries, Epicr. Myc. 381. 1838. 
Agaricus ramealis Bull. Herb. Fr. pl. 336. 1786. 
Marasmius gregarius Peck, Bull. Torrey Club 23: 413. 1896. 
Collybiopsis ramealis Earle, Bull. N. Y. Bot. Gard. 5: 415. 1909. 
Pileus subfleshy, plane or depressed, obtuse, 4-9 mm. broad; surface rugulose, opaque, 
white, the disk with a reddish tint, margin not striate: lamellae adnate, connected behind, sub- 
distant, narrow, white: spores ovoid, apiculate, 8-10 X 3-3.5 w: stipe short, stuffed, white, 
-reddish below, farinaceous, 12-18 mm. long, 1 mm. thick, 
