NATURAL HIST0R1 SURVEY | 1 



Among dead leaves iii woods. June to Vugi 

 Collybia butyracea Bull. 



Pilous fleshy, thin, convex then expanded, unbonati . 

 reddish-brown, becoming paler with age, moisl in wel wi 

 flesh dingy or whitish when moist, white when dry. 



Lamellae thin, crowded, crenulate, adnexed or almost 

 white. 



Stem commonly tapering upward, glabrous, striate, reddish or 

 reddish-brown, usually with a white tomentum on the thickened 

 base, white within, stuffed or hollow. 



Pileus 3 to 7.5 cm. broad; stem, 3 to 7.5 cm. long, 1 to 6 mm. 

 thick at the top, thicker at the base. Spores 6 to 7.5 x 3 to 4 fi. 



On the ground in pine woods. Millers, Ind., October. 

 Collybia dryophila Bull. 



Pileus thin, convex or nearly plane, sometimes with the margin 

 elevated, irregular, obtuse, glabrous, varying in color, commonly 

 some shade of bay-red or tan-color; flesh white. 



Lamellae narrow 7 , crowded, adnexed or almost free, white or 

 whitish, rarely yellowish. 



Stem equal or sometimes thickened al the base, cartilaginous, 

 glabrous, hollow, yellowish or rufescent, commonly similar in 

 color to the pileus. 



Spores 6 to 7.5 x 3 to 4 fx. Pileus 2.5 to 5 cm. broad; stem 

 2.5 to 5 cm. long, 2 to 4 mm. thick. 



Common in woods, summer and autumn, on dead sticks and 

 among fallen leaves. Spores elliptic-fusiform, occasionally pip- 

 shaped, about 7 x 4 |U. 



Collybia alcalinolens Pk. 



Pileus thin, subcorneal, convex or nearly plane, glabrous 

 silky -fibrillose, hygrophanous, dark-brown and sometimes striatu- 

 late on the margin when moist, grayish-brown or cin when 



dry, shining; flesh white, odor strong, alkaline. 



Lamellae broad, subdistant, deeply emarginate or adne 

 with a slight decurrent tooth, somewhat ventricose, whitish. 



Stem shining, glabrous, slightly pruim the top, 1 



whitish. 



Spores broadly elliptical, 7.5 to 9 x k to 5 /*. Pileus 1" 

 mm. broad; stem, 2.5 to 5 cm. long, 2 to 6 mm. thick. 



Woods, (den Ellyn. May. Gregariou 

 stumps. The plant lias a strong odor, resembling thai of chlori 

 of lime. 



Collybia ignobilis Kar I 



Pileus slightly fleshy or membranaceous, slightly 

 plane with the disk slightly depressed, glabrous, livid wl 

 with a grayish reflection and the spreading ma triatulal 



grayish or pallid when dry. 



Lamellae (dose, dingy or pale, emarginate. 



