167-3 
tility of this body has precluded the determination of its chemical characteristics. 
No other active body has been determined, though some principle other than the 
acrid body seems to reside in the corms. Starch, gum, and sugar have been 
isolated. 
PHYSIOLOGICAL ACTION.—From personal observations and the literature 
upon this plant, its action, when fresh, seems to be quite similar to that of strong 
liquor ammonia, causing as it does an irritation and burning of mucous mem- 
branes and acceleration of secretions. The provings have developed a train of 
symptoms very characteristic, and therefore useful, but not belonging under this 
rubric. 
DESCRIPTION OF PLATE 167. 
1. Young plant, from Binghamton, N. Y., May 27, 1884. 
2. Corm. 
. Female spadix. 
. Fertile hlower—v. ¢., pistil (enlarged). 
. Sterile hower—v. ¢., stamen (enlarged). 
. Pollen x 200. 
am & WwW 
oe 
