92 PHAEMACAL PLANTS AND THEIR CULTURE. 



293. Delphinium bicolor Nutt. Purple larkspur. Ranunculacece. 

 Poisonous. Cultivated. Properties simliar to those of D. con- 



solida. 



294. Delphinium californicum T. and G. Coast larkspur. Ranun- 

 culacece. 



Not very common. Poisonous. 



295. Delphinium consolida L. Larkspur. Ranunculacece. 



A common poison weed of Europe; introduced everywhere. Well 

 known medicinally. Seeds used to destroy lice and other vermin. 

 (U. S. Disp. and texts on materia medica.) 



296. Delphinium decorum F. and M. Larkspur. Ranunculacece. 

 Reported to be poisonous. This species and D. scopulorum require 



further investigation as to poisonous properties. 



297. Delphinium geyeri Greene. Larkspur. Ranunculacece. 

 Common on the ranches of Colorado and Wyoming. Fresh leaves 



are very poisonous. Requires further study. 



298. Delphinium glaucum. Tall larkspur. Ranunculacece. 

 Poisonous to cattle. Requires further study. 



299. Delphinium hesperium Gray. Western larkspur. Rattle- 

 snake flower. Ranunculacece. 



Poisonous to cattle. (Contrib. U. S. Nat. Herb. 7: (No. 3) 347.) 



300. Delphinium menziesii D.C. Purple larkspur. Ranunculacece. 

 Common in California. Many heads of sheep have been poisoned 



by this plant. 



301. Delphinium nudicaule T. and G. Red larkspur. Sleep root. 

 Ranunculacece. 



Is reported to have narcotic and soporific properties. Should be 

 more carefully studied. (Contrib. U. S. Nat. Herb. 7: (No. 3) 347.) 



302. Delphinium recurvatum Greene. Larkspur. Ranunculacece. 

 Very poisonous. Requires further study. 



303. Delphinium staphisagria L. Stavesacre. Ranunculacece. 



A common poison weed from Europe, well known medicinally. May 

 be grown anywhere. Seeds used externally (infusion) to destroy lice 

 and other vermin. (U. S. Disp.) 



304. Delphinium tricorne Michx. Dwarf larkspur. Ranunculacece. 

 Eastern and southern in range, but is grown in California. The 



active constituents of this plant require further study. Fresh leaves 

 are very poisonous. 



