6 BULLETIN 69^ U. S. DEPARTMENT OF AGEICULTUEE. 



By the French it is known as ''Cigue vireuse," "Cigue tachetee" 

 being applied to Conium. 



SPECIES OF CICUTA REPORTED AS POISONOUS. 



The following species of Cicuta have been reported as poisonous: 

 C. maculata, hulhifera, vagans, holanderi, occidentalis, calif ornica, curtisii, 

 douglasii, fur'purea, tenuifolia, and virosa. In some cases this beUef 

 is supported by strong experimental evidence. This evidence is 

 especially strong in regard to maculata, vagans, occidentalis, califor- 

 nica, and virosa. There is every reason to believe that all species of 

 Cicuta are poisonous, and possibly all equally so. 



LOCALITIES WHERE CICUTA POISONING HAS OCCURRED. 



The number of reported cases of poisoning by Cicuta in Europe is 

 very large, by far the greater number having occurred in Germany. 



Fig. 1.— Map of the United States, showing the distribution of recorded cases of poisoning by 

 Cicuta. Dots indicate the locations of poisoning of human beings, while crosses show the 

 locations of cattle poisoning. 



In figure 1 the recorded cases of poisoning in the United States 

 have been plotted, dots indicating the places where members of the 

 human family have been poisoned, while crosses show the localities 

 of cattle poisoning. This chart has been compiled from pubhcations 

 and from definite records in the Office of Poisonous Plants of the 

 United States Department of Agriculture. The first pubfished ac- 

 count was by Stockbridge, 1814. Figure 1 by no means represents the 

 entire number of cases. The compilation of this chart brought out 

 in a surprising manner how imperfectly such cases have been put on 



