PHARMACAL PLANTS AND THEIR CULTURE. 91 



284. Dalea emoryi G. Leguminosce. 



This appears to be the most popular species among the Indians. 

 (Proc. A. Ph. A. 27: 258, 1879.) 



i'^'). Daphne mezereum L. Mezereon. Olive spurge. Thymelacece. 

 Cultivated as an ornamental plant. Well known medicinally. A 

 decoction of the bark is popularly used as a diuretic. 



286. Datisca glomerata Hook. Durango root. Datistacece. 



Used by Indians to stupefy fish. Leaves and roots intensely bitter ; 

 used as a bitter tonic. Should be more carefully studied. 



287. Datura meteloides D. C. Jamestown weed. Solanacece. 



The Coahilla Indians have used this noxious weed as a substitute 

 for tobacco ; also mixed with drinks and in the form of a poultice. 

 According to Hall, an intoxicating drink is made from the crushed 

 fruits. General medicinal properties similar to D. stramonium. 

 Should be more carefully investigated. (Calif. Geol. Surv., Bot. 

 1:544.) (Barrows, Land of Sunshine, No. 13, p. 322, Nov., 1900.) 

 (Hilgard, TJ. of C. Agr. Exp. Stat. Reports, p. 284, 1890.) (U. S. Dept. 

 Agr. Off. Exp. Sta. Bui. No. 15, p. 369.) (Proc. A. Ph. A., 27:158, 

 1879.) 



288. Datura stromonium L. Thorn apple. Jamestown weed. Jim- 

 son weed. Stink apple. Solanacece. 



Is becoming gradually introduced from the East. A rank weed in 

 waste places. "Well known medicinally. Very easily grown. The 

 leaves and seeds are used medicinally. (U. S. Disp.) 



289. Datura tatula L. Jimson weed. Solanacece. 



Common in the State. Closely related to D. stramonium. Con- 

 tains atropine and hyoscyamine. The seeds are very poisonous. 

 Should be more fully investigated. 



290. Daucus carota L. Wild carrot. Umbelliferce. 



The seeds act as a mild, stimulating diuretic, used in dropsy and 

 chronic nephritis. Contains pectin, vegetable jelly, etc. (U. S. Disp.) 



291. Daucus pusillus Michx. Rattlesnake weed. Umbelliferce. 

 Used by the Spaniards as an antidote for snake bite. (Calif. Geol. 



Surv. Bot. 2: 452. Contrib. U. S. Nat. Herb. 7: No. 3, p. 372.) 



292. Delphinium species. Larkspur. Eanunculacece. 



Numerous species occur in the State, and all are more or less poi- 

 sonous. Many are cultivated as ornamental plants. This group of 

 plants causes very serious losses to ranchmen through the poisoning 

 of cattle on the grazing ranges. 



The symptoms of poisoning by the larkspurs are similar to those of 

 aconite, and the treatment is the same as for aconite poisoning. 



