152 



MUSHROOMS, EDIBLE AND OTHERWISE 



Marasmius nigripes. Schiv. 



Nigripes means black foot, so called because the stems are black. 



Tremmelloid. Pileus very thin, pure white, pruinose, rugulose-sulcate, con- 

 vex then expanded. 



The gills are pure white, unequal, some of them forked, adnate, the interstices 

 venulose. 



Figure 115. Marasmius nigripes. Natural size. Caps and gills white, 

 stems black. 



The stem is thickest at the apex, tapering downward, black, white-pruinose, 

 the base insititious. Morgan. 



It is found on old leaves, sticks, and old acrons and hickory-nuts. When dry, 

 the stem loses its black color and the gills become flesh-color. It is quite common 

 in thin and open woods. The spores are hyaline and stellate. 3-5-rayed. Found 

 from July to October. 



This is called Heliomyces nigripes by some author-. 



