WHITE-SPORED AGARICS. 99 



red juice, the hollow stem, and the crenate or denticulate sterile 

 margin of the cap. Numbers of the plant occur usually in a single 

 cluster, and their bases are closely joined and hairy. The stems are 

 more or less ascending according to the position of the plant on the 

 wood. The plants are 5-10 cm. high, the cap is 1-2.5 cm. broad, 

 and the stem 2-3 mm. in thickness. 



The pileus is conic, then bell-shaped, and as the margin of the cap 



Figure toi. Mycena cyanothrix. Cap viscid when young, blue, be- 

 coming pale and whitish in age, and fuscous in center; gills white; 

 stem faintly purple when young, then flesh color or white, blue, 

 clothed with blue hairs at base (natural size). Copyright. 



expands more appears umbonate, obtuse, smooth, even or somewhat 

 striate on the margin. The color varies from whitish to flesh color, 

 or dull red, and appears more or less saturated with a red juice. 

 The thin margin extends a short distance beyond the ends of the 

 gills, and the margin is then beautifully crenate. The gills are 

 adnate, and often extend down on the stem a short distance by a 

 little tooth. The stem is firm, sometimes smooth, sometimes with 



