246 



POISONING. 



BUXACE^ (box family). 



*Buxus sempervirens. — The leaves of the common box, cultivated 

 for hedges, are poisonous to all kinds of stock. 



^SCULACiE (HOESE-CHESTNUT FAMILy). 



^sculus californica, California buckeye : >E. glabra, Ohio buck- 

 eye ; foetid buckeye : M. hippo- 

 castanum, horse - chestnut : M. 

 pavia, red buckeye. — The leaves 

 and fruit of these species are 

 generally regarded as poisonous 

 to stock. The fruit may be easily 

 converted into food by washing 

 and boiling. It is believed that 

 a small quantity of the unpre- 

 pared fruit of the California buck- 

 eye will cause cows to slip their 

 young. 



HYPERICACE^ (ST. JOHn's WORT 



family). 



* Hypericum perforatum. — 



The common St. John's-wort is 

 commonly believed to cause dis- 

 agreeable eruptions on cows' 

 udders and on the feet of white 

 haired animals. This species 

 and the spotted St. John's wort 

 {H. maculatum) were brought into 

 the United States Bureau of Agri- 

 culture by Dr. G. W. Bready, from 

 Norwood, Maryland, who stated 

 that five horses were poisoned in 

 May, 1898, by eating meadow hay 

 of these plants. One horse died 

 two were killed to prevent their 



Fig. 100.— Water hemlock {Cicuta macu- 

 lata), showing section of spindle-shaped 

 roots and lower stem, the leaves, flowers, 

 and fruit, one-half natural size ; also fruit 

 and cross-section of seed, enlarged five 

 times. 



which contained nearly 50 per cent, 

 from the effects of the poison, and 

 further suffering. 



POISONING BY ST. JOHN S WORT. 



The ingestion of St. John's wort produces excitement followed by dul- 

 ness, interference with vision and hearing, and by visual hallucinations 



