70 Cincinnati Society of Natural History. 
41, A. cyatuirormis, Bull.—Pileus fleshy-membranaceous, depressed 
then infundibuliform, even, nearly glabrous, moist, hygrophanous, 
margin foralong time involute. Stipe stuffed, elastic, tapering upward, 
fibrillose-reticulate. lamella adnate then decurrent, distant, joined 
behind, sordid. Spores .008-.010X.005-.007 mm. | 
On the ground and on logs in woods. Pileus 14-24 in. across, stipe 
about 2 in. long. ‘The color is at first brownish, then clay-color or alu- 
taceous. The margin, when fully expanded, becomes striatulate. The 
stipe is colored as the pileus. 
42. A. pRuINosuS, Lasch.—Pileus fleshy-membranaceous, umbilicate, 
then infundibuliform, rather even, hygrophanous, sprinkled with a 
leaden bloom. Stipe stuffed, somewhat ascending, fibrillose, pallid. 
Lamelle adnate then decurrent, close, narrow, white, then sordid. 
On the ground and also on trunks, in woods, late in autumn. Pileus 
1-2 in. broad, stipe 1-2 in. long. The pileus is brown, growing cinere- 
ous, sometimes scaly. This is one of Mr. Lea’s finds that I have not 
yet met with. | 
SuspGENus VI.—Cottrysia, Fr. 
Spores white. Pileus convexo-plane, the,margin at first involute. 
Stipe hollow and cartilaginous, or medullate, with a cartilaginous bark, 
rooting. Lamelle free or attached obtusely. Fungi epiphytal on 
wood, leaves, etc., or rooting in the ground. 
A, Stipe glabrous. 
a. Lamelle broad, distant, 43, 44. 
b. Lamelle uarrow, close, 45-48. 
B. Stipe not glabrous. 
ec. Lamelle broad, distant, 49-51. 
d. Lamelle narrow, close, 52-54. 
A, Stipe glabrous. 
a. Lamelle broad, distant. 
43. A. Rapicatus, Relh.—Pileus fleshy, thin, convexo-plane, 
gibbous, rugose, glutinous. Stipe stuffed, tall, tapering upward, rigid, 
glabrous, at length sulcate. Lamelle attached, disposed to secede, 
distant, white. Spores, .017X<.010 mm. 
In woods and fields about the bases of old stumps; one of the com- 
monest Agarics from early spring till late in autumn; always readily 
recognized by its long rooting stipe. Pileus usually 2-4 in. broad, 
