(295) 



6417- Toad-flax. Butter-and-eggs. — The flowering stems of Linaria Linaria (L.) 

 Karst. (See No. 716). The plant is emetic and somewhat poisonous. 

 Collected by J. K. Small at Lancaster, Pennsylvania, October II, 1890. 



6418. Horse, or white, gentian or ginseng. Fever-root. Wild, or wood, ipecac. 



Wild coffee. — The flowering stems of Triosteum perfoliatum L. (Capri- 

 foliaceae — Honeysuckle Family). Native of eastern and central North 

 America. Root emetic and somewhat poisonous. 



6419. The rootstocks and roots of the preceding species. Collected by W. N. 



Clute in Bronx Park, New York, August 14, 1899. 



6420. Orange-colored horse gentian. — The flowering stems of T. aurantiacum 



Bicknell (See No. 5091). Collected by J. K. Small at Safe Harbor, 

 Pennsylvania, June 8, 1899. 



6421. Black elderberry. — The flowering and fruiting branches of Sambucus canaden- 



sis L. (See No. 2344). (Same family.) Native of eastern and central 

 North America. The herbage, especially the root, is highly poisonous 

 and fatal accidents have resulted from eating the latter. Collected by 

 P. Wilson, June 14, 1899. 



6422. The roots of the preceding plant. Collected by Clute & Wilson in the New 



York Botanical Garden, August 14, 1899. 



6423. The fruits of the same. Same collection as preceding. 



6424. Lobelia. Indian tobacco. Asthma weed (See No. 2918). A powerful 



emetic and narcotic poison, and a useful medicine. 



6425. Great Lobelia. Blue cardinal flower. — The flowering plant of Lobelia syphi- 



litica L. Same region as the preceding, and somewhat less poisonous. 

 Collected by P. Wilson in Bedford Park, New York, September 5, 1899. 



6426. Cardinal flower. Scarlet Lobelia. The flowering stems of L. cardinalis L. 



Native of eastern and southeastern North America. Poisonous like the 

 preceding. Causes abortion in cattle. Collected by Clute & Wilson in 

 Bedford Park, New York, August 29, 1899. 



6427. The roots of the preceding. 



Insecticides 



Insecticides are substances used to destroy injurious or 

 troublesome insects. In practice, the term is often made 

 to include also substances used to repel such insects. The 

 insects may be injurious to man, to the lower animals, or 

 to plants. Many of these substances are inorganic, but 

 a number of them consist of parts or products of plants, 

 and of these it is our intention to form a complete collection. 



6428. Cevadilla. Sabadilla (See No. 2461). Used to destroy vermin on the 



animal body. 



6429. Fly-poison. — The plant of Chrosperma muscaetoxicum (Walt.) Kuntze 



(Melanthaceae — Bunch-flower Family). Native of the eastern and south- 

 eastern United States. Used to kill flies and other insects. 



