Nov. 1905] North American Species of Marasmius 
237 
b". Stipe white or pallid. 
70. MARASMIUS OPACUS B. & C. Journ. Bot. 1849. 
Delicate. Pileus convex, rugulose, opaque, pulverulent, whit¬ 
ish. Stipe insititious, elongated pulverulent-subfurfuraceous, 
pallid. Lamellae ventricose, distant, adnexed; spores ovoid-ob¬ 
long, hyaline, 6-7 x 3 mic. 
Growing on old leaves and sticks. Pileus 5-8 mm. in diam¬ 
eter, the stipe 2-4 cm. long and about 1 mm. thick. 
71. MARASMIUS CUBENSIS B. & C. Fungi Cub. 106. 
Pileus plane, umbonate, thin, sulcate, rugulose, whitish. 
Stipe slender, whitish, pulverulent, insititious. Lamellae thin, 
distant, adnexed, white trabeculate between. 
Growing on dead wood. Pileus 2 cm. in diameter, the stipe 
2-3 cm. long. 
72. MARASMIUS DEALBATUS B. & C. Fungi Cub. 
107. 
' Pileus convex, pure white, opaque, umbonate. Stipe pru- 
inose, dilated upward, insititious. Lamellae close venose. 
Growing on bits of grass, etc. Pileus 6-7 mm. in diameter, 
the stipe 12-13 mm. long. 
73. MARASMIUS PETIOLORUM B. & C. Fungi Cub. 
hi. 
Gregarious. Pileus convex, then nearly plane, sub-pellucid, 
striate, pruinose. Stipe pellucid, pruinose, insititious. Lamellae 
few, adnate, broad, white. 
Growing on petioles and midribs of old leaves. Pileus 1 
mm. in diameter, the stipe 6-7 mm. long. 
74. MARASMIUS BERMUDENSIS Berk. Exp. Chall. 
11. 1873. 
Pileus convex, pulverulent, whitish, subsulcate. Stipe short, 
pellucid above, downward pulverulent. Lamellae distant, adnate, 
white. 
Growing on dead wood of Coffea; Bermuda. Pileus 2 mm. 
in diameter, the stipe 6-12 mm. long. 
§ 2. MYCENA. PILEUS FROM SUB-CARNOSE TO 
MEMBRANACEOUS, CONVEX OR CAMPANULATE, 
THE MARGIN AT FIRST STRAIGHT AND APPRESSED. 
STIPE CARTILAGINOUS, TOUGH, DRY, FISTULOUS. 
LAMELLAE FREE OR ADNEXED, NOT DECURRENT. 
I. LONGIPEDES. Pileus a little fleshy or submembra- 
naceous, convex or campanulate then expanded. Stipe elongated 
and rooting among old leaves or in rotten zuood. Lamellae free 
or attached to the stipe. 
A. STIPE GLABROUS. 
