THE SOUND MADE BY FUNGUS GUNS 337 



very noticeable cloud of spore-smoke which its mature fruit-bodies 

 emit when they are gathered in the open or jarred in the laboratory, 

 it is popularly known as the DeviVs Cigar. ^ A well-grown fruit- 



FiG. 171. — Urnula geaster. To the left, a young fruit-body with the 

 liymonial cavity still closed. To the right, a mature fruit-body 

 beginning to expand and forming valves from above downwards. 

 Found on roots of a dead elm, Ulmus crassijolia, at Denton, Texas, 

 U.S.A., and photographed by W. H. Long. Natural size. 



body, just before opening and expanding, is club-shaped and 

 resembles in form a stipitate Puff-ball (Fig. 171). It is about 4 inches 

 high, velvety brown without, and leathery in consistence. The 

 stipe is stout and about 2 inches long and continuous with it above 



^ Fide personal communication by F. McAllister of the University of Texas, 

 December, 1926. 



VOL. VI. z 



