70 Cincinnati Society of Natural History. 



41. A. CYATHIF0RMI8, Bull. — Pileus fleshy-membranaceous, depressed 

 then infundibuliform, even, nearly glabrous, moist, hygrophanous, 

 margin for a long time involute. Stipe stuffed, elastic, tapering upward, 

 fibrlllose-reticulate. Lamella? adnate then decurreut, distant, joined 

 behind, sordid. Spores .008-.OlOX.005-.007 mm. 



On the ground and on logs in woods. Pileus 1^-2^ 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. PRDiNosus, Lasch. — Pileus fleshy-membranaceous, umbilicate, 

 then infundibuliform, rather even, hygrophanous, sprinkled with a 

 leaden bloom. Stipe stuffed, somewhat ascending, fibrillose, pallid. 

 Lamellse 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 

 3^et met with. 



Subgenus VI. — Collybia, Fr. 



Spores white. Pileus convexo-plane, the margin at first involute. 

 Stipe hollow and cartilaginous, or medullate, with a cartilaginous bark, 

 rooting. Lamellae free or attached obtusel}'. Fungi epiphytal on 

 wood, leaves, etc., or rooting in the ground. 



A. Stipe glabrous. 



a. LamelliE broad, distant, 43, 44. 

 h. Lamellse narrow, close, 45-48. 



B. Stipe not glabrous. 



c. Lanielloe broad, distant, 49-51. 



d. Lamellae narrow, close, 52-54. 



A. Stij)e glabrous. 



a. Lamelloi broad, distant. 



43. A. iiADiCATUs. Relli. — Pileus flesh}^ tliin, convexo-plane, 

 gibbous, rugose, glutinous. Stipe stuffed, tall, tapering upward, rigid, 

 glabrous, at length sulcate. Lamelloe attached, disposed to secede, 

 distant, white. Sporos, .017X.010 mm. 



In woods and fields about tlie bases of old stumps; one of the com- 

 monest Agarics from early spring till late in autumn; always readily 

 recognized l)y its long rooting stipe. Pileus usually 2-4 in. broad' 



