Sept. 1905 ] North American Species of Marasmius 
211 
brous arising from an orbicular disk. Lamellae narrow, linear, 
the spaces between venose. 
Growing on dead trunks. Pileus 2-3 cm. in diameter, the 
stipe 2-3 cm. long, scarcely 1 mm. thick. 
44. MARASMIUS CATERVATUS Massee, Journ. Bot. 
1892. 
Pileus membranaceous, convex or campanulate then ex¬ 
panded, even, becoming striate, whitish. Stipe fistulous, equal, 
white, glabrous, the base mycelio-thickened. Lamellae adnate, 
distant, white then pallid; spores ellipsoid, 6x4 mic. 
Growing on dead wood; West Indies. Pileus about 8 mm. 
in diameter, the stipe 12-16 mm. long and 1 mm. thick. 
B. STIPE VELVETY OR PRUINOSE. 
a. Lamellae colored. 
45. MARASMIUS SERICIPES B. & C. Fungi Cub. 96. 
Vinoso-rufous when dry. Pileus convex, thin rugose. Stipe 
rather thick, silky, glabrescent. Lamellae distant, narrow adnate. 
Growing on dead sticks in woods. Pileus 2 cm. in diameter, 
the stipe 2-3 cm. long and 2-4 mm. thick. 
46. MARASMIUS DICHROUS B. & C. Ann. & Mag. 
N. H. XII. 426. 
Pileus convex, dark brown, minutely tomentose, sometimes 
appearing velvety. Stipe brown; furfuraceous, villous-enlarged 
at the base. Lamellae moderately distant, ventricose adnate- 
seceding; interstices nearly even ; spores white. 
Growing on rotten wood in dry swamps. Pileus 2-3 cm. in 
diameter, the stipe 3-4 cm. long and scarcely 2 mm. thick. 
b. Lamellae white or pallid. 
47. MARASMIUS RUGULOSUS B. & C. Fungi Cub. 
1867. 
Pileus hemispheric, multi-sulcate, glabrous, brown or black¬ 
ish, the umbo depressed and darker. Stipe brown or blackish, 
sparsely pubescent. Lamellae adnate, ventricose, whitish. 
Growing on sticks and leaves. Allied to M. foetidus. 
48. MARASMIUS RAMEALIS Fries. Hym. Eur. Aga¬ 
ric us ramealis. Bulliard Herb. 1786. 
Pileus a little fleshy, plane or depressed, obtuse, not striate,, 
rugulose, opaque. Stipe stuffed, short, farinaceous, white, down¬ 
ward rufescent. Lamellae adnate, subdistant, narrow, white; 
spores elliptic, 4x2 mic. 
Growing on dry branches of Quercus, Fagus, Rubus, etc., 
often densely gregarious. Pileus 5-8 mm. in diameter, the stipe 
6-10 mm. long and about 1 mm. thick. Pileus white, the disk 
subrufescent. In its young state the base dilated into a cir¬ 
cular disk. 
