Nov., 1903.] Poisonous and Other Injurious Plants. 19 



45. Veratrum viride Ait. American White Helebore. Roots 



are poisonous. 



46. Veratrum woodii Robb. Wood's False Helebore. Poison- 



ous like the preceding species. 



47. L,iliuni superbum L. Turk's-cap lyily. The pollen is said 



to cause skin poisoning. 



48. Asparagus officinalis L. Asparagus. Will sometimes blis- 



ter the skin of those who work with it. The seeds are 

 used as a substitute for coffee. 



49. Convallaria majalis L,. Lily-of-the-valley. All parts of the 



plant are verj' poisonous to man, horses and cattle. 



50. Trillium grandiflorum (Mx.) Salisb. Large-flowered Wake- 



robin. Emetic. Contains saponin. 



51. Trillium erectum h. Ill-scented Wake-robin. Rhizome 



somewhat poisonous. 



52. Smilax rotundifolia L. Round-leaved Greenbrier. A case 



of poisoning from eating the young leaves is reported. 



53. Iris versicolor I,. Large Blue-flag. Underground parts 



are poisonous. 



54. Cypripedium reginae Walt. Showy Lady's-slipper. ( C. 



spectabile Swz.j Poisonous to the skin, much like 

 Poison Iv5'. x\t least 50 per cent, of persons are suscep- 

 tible. 



55. Cypripedium hirsutum ]\Iill. Large Yellow Lady's-slipper. 



( C. pubescens Willd. ) Poisonous like the preceding 

 species. 

 ^6. .Cypripedium parviflorum Salisb. Small-flowered Lady's- 

 slipper. This species is also poisonous, but to a less 

 extent than the other two. 



DiCOTYLEDONES. 



57. Toxylon pomiferum Raf. Osage Orange. The thorns 



produce poisonous wounds in the skin. Horses acquire a 

 strong liking for the 3-oung shoots and eat them in large 

 quantities without apparent ill eft'ects. 



58. Hnmulus lupulus L. Hop. Hop pickers often have an 



inflammation of the hands. 



59. Cannabis sativa L. Hemp. The resin of this plant is a 



powerful narcotic. An intoxicating drink is prepared 

 from the dried leaves. The leaves and other parts are 

 smoked for their intoxicating and narcotic effects. 



60. Urtica dioica L. Stinging Nettle. Stinging and injurious 



to the .skin. 



61. Urtica gracilis L. Slender Nettle. Injurious to the skin 



of man and horses. 



(To be continued.) 



