Part 4, 1915] AGARICACEAK 283 
ILLUSTRATIONS: Bull. Herb. Fr. p1. 64, pl. 569, f. 3; Cooke, Brit. Fungi pl. 1129 (1084) A; 
E. & P. Nat. Pf. 14**: f. 113; Gill. Champ. Fr. pl. 198 (443), f. 1; Hard, Mushrooms f. 108; Ricken, 
Blatterp. Deutschl. pl. 25, f. 10; Sow. Engl.-Fungi pl. 95. 
Exsiccati: Cavara, Fungi Longob. 20; Cooke, Fungi Brit. 302; Ellis & Ev. N. Am. Fungi 
2501; Kriegen, Fungi Sax. 225; Roum. Fungi Gall. 2605, 4013; Roum. Fungi Sel. 5902; Shear, N. Y. 
Fungi 22; Sydow, Myc. Mar. 303; Sydow, Myc. Germ. 851; Westend. Herb. Crypt. Belge 1282. 
146. Marasmius albiceps Peck, Ann. Rep. N. Y. State Mus. 43: 
67 (21). 1890. 
Pileus membranous, convex or campanulate, 5 mm. broad; surface glabrous, white: 
lamellae adnate or arcuate-decurrent, distant, broad, white: spores obovoid, 6-7 X 3-4 u: 
stipe horny, setiform, black, paler at the apex, glabrous, growing from a brown mycelium, 
16-36 mm. long. 
Type LOCALITY: Manor, New York. 
Hasrrat: Among fallen branches in woods. 
DisTRIBUTION:, New York and Michigan. 
147. Marasmius straminipes Peck, Ann. Rep. N. Y. State Mus. 26: 
66. 1874. 
Pileus membranous, hemispheric or convex, 2.5-8 mm. broad; surface glabrous, white, 
margin striate: lamellae adnexed, distant, unequal, white, yellow in drying: spores 7 X 3.5 mu: 
stipe horny, filiform, pale-straw-colored, pallid when dry, brownish at the base, glabrous, 
shining, 2.5-5 cm. long. 
TYPE LOCALITY: Center, New York. 
Hasirat: Fallen leaves of Pinus rigida. 
Distrisution: Newfoundland and New York. 
Exsiccati: ?Hllis, N. Am. Fungi 701. 
148, Marasmius capillaris Morgan, Jour. Cine. Soc. Nat. Hist. 6: 194. 
1883. 
Pileus membranous, convex, umbilicate, 2~5 mm. broad; surface plicate-sulcate, very 
minutely wrinkled, alutaceous to umber, white at the center: lamellae equal, broad, white, 
attached to a free collar: spores 8-10 X 4-5 uw: stipe capillary, very long, inserted, black, 
paler at the apex, glabrous, shining, 5—6 cm. long. 
TYPE LOCALITY: Miami Valley, Ohio. 
Hasitat: Upon old leaves and sticks in woods. 
DISTRIBUTION: New York to Michigan and south to Alabama. 
149. Marasmius graminum (Libert) Berk. & Br.; Berk. Outl. 
Brit. Fungol. 222. 1860. 
Agaricus graminum Labert, Pl. Crypt. 119. 1832. 
Pileus membranous, convex to plane, umbonate, 3-6 mm. broad; surface reddish-white, 
becoming darker in dried plants, margin sparingly sulcate: lamellae free with a collar, equal, 
distant, whitish: spores 9 X 4.5 u: stipe capillary, tough, black or pallid at the apex, glabrous, 
shining. 
TYPE LOCALITY: France. 
HasitaT: Dead grass. 
DISTRIBUTION: Temperate North America; also in Europe. 
ILLUSTRATIONS: Berk. Outl. Brit. Fungol. pl. 14, f. &. 
Exsiceati: Ellis, N. Am. Fungi 2301; Rav. Fungi Am. 105. 
150. Marasmius siccus (Schw.) Fries, Epicr. Myc. 382. 1838. 
Agaricus siccus Schw. Schr. Nat. Ges. Leipzig 1: 84. 1822. 
Marasmius campanulaius Peck, Ann. Rep. N. Y. State Cab. 23: 126. 1872. 
Marasmius fulviceps Clements, Bot. Surv. Nebr. 4: 20. 1896. Not M. fulviceps Berk. 1847. 
Marasmius Clementsianus Sacc. & Sydow, in Sacc. Syll. Fung. 14: 101. 1899. 
Pileus membranous, convex or campanulate, solitary or gregarious, 6-15 mm. broad; 
surface dry, glabrous, ochraceous, sometimes pink, rarely gray in dry plants; margin radiate- 
