19 



hyaline, with a large oil drop 10 fi in diam., ovoid, or 



slightly limoniform, 17-18x10-12 fjt. 

 Pileus 3 cm. wide; stipe 7 cm. long, 2 mm. thick. 

 On wet earth, Saltillo. 



Collybia discipes Clements. 



Pileus convex, at length explanate, subcarnose, even, glab. 

 rous, striate at the margin, grayish-drab ; umbo wide, 

 darker, grayish-brown; stipe cartilaginous, stuffed, glab- 

 rous, shining, white, arising from a hypogaeous disk; 

 lamellae free, remote, crowded, ventricose, 4-6 /j. wide, pale 

 orchraceous; cystidia exactly cyathiform or sometimes 

 flask-shaped, 2-3 cuspidate at the apex, 45-53 p. long, 20 fji 

 wide at the base, 10 ft at the apex ; spores ellipsoid, or ovate, 

 granular within, 5-6x3—4 /i. 



Pileus 5 cm. wide; stipe 3 J cm long, 5 mm. wide. 



On damp ground, Beatrice. 



Collybia umbrina Clements. 



Pileus convex, carnose, umbonate, brown, glabrous, exstri- 

 ate, very viscid, dotted with thin, black lines; umbo black; 

 stipe very long, attenuate above, carnose, stuffed, glabrous, 

 longitudinally striate towards the apex, radicate, white, 

 becoming fuscous below; lamellae adnate, broad, distant, 

 unequal, white; spores large, irregularly limoniform, with 

 large oil-drop 10 /j. in diam., 12-13x17-18 /x. 



Pileus 4 cm. wide; stipe 25 cm. long, 5 mm. wide above, 10 

 mm. below. 



On decaying twigs buried in the ground, Bellevue. Perhaps 

 but a variety of C. radicata Rehl. 



Collybia velutina Clements. 



Pileus convex, or plane, carnose-cartilaginous, even, covered 

 with a dense, brown-fulvous tomentum, reddish-chestnut- 

 colored; stipe fistulose, cartilaginous, equal, densely 

 clothed with a silky, f ulvous-ochraceous tomentum ; lamel- 



