282 NORTH AMERICAN FLORA EvouuMy 9 
141. Marasmius calopus (Pers.) Fries, Epicr. Myc. 379. 1838. 
Agaricus calopus Pers. Syn. Fung. 373. 1801. 
Pileus soft, fleshy, convex to plane or depressed, 8-18 mm. broad; surface smooth, becom- 
ing rugose, lighttyellow or white: lamellae emarginate-adnexed, thin, white: spores 7 X 44: 
stipe equal, reddish-brown, glabrous, not mycelioid, shining. 
TYPE LOCALITY: France. 
Hasrrar: Grass roots and among leaves in woods. : ae . 
DISTRIBUTION: New Vork to the Carolinas and west to Ohio and Michigan; also in Europe. 
InLusTRaTIONS: Britz. Hymen. Sudb. Marasm. f. 26, 43; Cooke, Brit. Fungi pl. 1125 
(1079) B. 
Exsiccati:? Rav. Fungi Am. 785. 
142. Marasmius glabellus Peck, Ann. Rep. N. Y. State Mus. 26: 66. 
1874. 
Pileus membranous, convex to expanded, 6-15 mm. broad; surface dark-ochraceous, 
often roughened on the disk, pruinose with cystidia, margin distantly striate: lamellae free, 
unequal, interveined, distant, broad, ventricose, whitish: spores 9 < 4.5; cystidia pointed, 
30-40 uw long: stipe horny, equal, hollow, reddish-brown or chestnut, glabrous, shining, white 
at the apex, thickened and mycelioid at the base, 2.5-5 cm. long, 1 mm. thick. 
TYPE LOCALITY: Worcester, New York. 
Hasirat: Fallen leaves. 
DISTRIBUTION: Temperate North America. 
Exsiccati: Ellis, N. Am. Fungi 910; Ellis & Ev. Fungi Columb. 501. 
143. Marasmius bellipes Morgan, Jour. Myc. 11: 207. 1905. 
Pileus thin, subfleshy, campanulate, then expanded, 1.5-2.5 cm. broad; surface glabrous 
pale-pinkish to purplish, margin plicate-sulcate: lamellae approximate, subdistant, moderately 
broad, equal, white: spores lance-shaped, 10-12 X 3-4 yw: stipe long, slender, thicker upward, 
brown and shining below, purplish at the apex, glabrous, arising from abundant mycelium, 
4-6 cm. long, 1 mm. thick. 
TYPE Locality: Ohio. 
HasirtatT: Old leaves of deciduous trees. 
DISTRIBUTION: New York, Ohio, and Michigan. 
144. Marasmius plicatulus Peck, Bull. Torrey Club 24: 142. 1897. 
Pileus submembranous, convex or subcampanulate, 2-3 cm. broad; surface glabrous 
even when moist, sulcate or striate when dry, dark-vinous-red inclining to bay-brown: lamellae 
slightly adnexed, subdistant, rather broad, narrowed behind, whitish: spores subellipsoid, 
apiculate at one end, narrowed at other, 10-13 X 5~7 u: stipe slender, hollow, radicating and 
blackish-brown at the base, with dense, white villosity, red and glabrous above, shining, often 
striate when dry, 6-10 cm. long. 
TYPE LocaLity: Southern California. 
HasiraT: Fallen leaves and vegetable debris. 
DISTRIBUTION: Western North America. 
145. Marasmius rotula (Scop.) Fries, Epicr. Myc. 385. 1838. 
Agaricus rotula Scop. Fl. Carn. ed. 2.2: 456. 1772. 
Agaricus androsaceus Bull. Herb. Fr. pl. 64. 1781. 
Pileus membranous, convex, umbilicate, gregarious or subcespitose, 3-10 mm. broad; 
surface plicate, not polished, whitish, often light-brown in dried plants, the disk sometimes 
darker: lamellae few, broad, distant, joined together behind into a free collar, whitish: spores 
6-8 X 3-4 u: stipe fistulose, horny, smooth, shining, blackish-brown, inserted or arising from 
rhizomorphic strands, 2-5 em. long. 
TYPE Locality: Carniola. 
Haszirat: Upon dead leaves, wood, or bark. 
DISTRIBUTION: Temperate North America; also in Europe. 
