1040 MISC. PUBLICATION 42 3, IT. S. DEPT. OF AGRICULTURE 

 Parker, K. W. 



1936. PREVENTION OF DEATH LOSSES IN SHEEP ON AREAS INFESTED WITH 



pingue (actinea richardsoni). N. Mex. Expt. Sta. Bill. 241. 

 Parks, H. B. 



1937. valuable plants native to texas. Tex. Agr. Expt. Sta. Bui. 551. 

 Pearson, G. A. 



1923. natural reproduction of western yellow pine in the south- 

 west. U. S. Dept. Agr. Bui. 1105. 



1931. FOREST TYPES IN THE SOUTHWEST AS DETERMINED BY CLIMATE AND 



soil. U. S. Dept. Agr. Tech. Bui. 247. 

 Plummer, C. C. 



1938. THE TOXICITY OF HAPLOPHYTON CIMICIDUM A. DC. TO FRUITFLIES. U. S. 



Dept. Agr. Cir. 455. 

 Rose, J. N. 



1899. notes on useful plants of Mexico. U. S. Natl. Mus., Contrib. 

 U. S. Natl. Herbarium 5: 209-259. 

 Russell, F. 



1908. the pima Indians. U. S. Bur. Amer. Ethnol. Ann. Rpt. 1904-5. 

 Safford, W. E. 



1917. NARCOTIC PLANTS AND STIMULANTS OF THE ANCIENT AMERICANS. 



Smithsn. Inst. Ann. Rpt. 1916: 405-409. 

 Saunders, Charles Francis. 



1938. western wild flowers and their stories. 

 Shantz, H. L. 



1911. NATURAL VEGETATION AS AN INDICATOR OF THE CAPABILITIES OF LAND 

 FOR CROP PRODUCTION IN THE GREAT PLAINS AREA. U. S. Dept. 



Agr., Bur. Plant Indus. Bui. 201. 

 Smiley, E. J. 



1922. WEEDS OF CALIFORNIA AND METHODS OF CONTROL. Calif. Dept. Agr. 



Monthly Bui. 11, nos. 2-3. 

 Standley, P. C. 



1920-26. trees and shrubs of Mexico. U. S. Natl. Mus., Contrib. U. S. 



Natl. Herbarium 23: 1-1721. 

 Streets, R. B., and Stanley, E. B. 



1938. CONTROL OF MESQUITE AND NOXIOUS SHRUBS ON SOUTHERN ARIZONA 



grassland ranges. Ariz. Univ. Tech. Bui. 74. 

 Thackery, F. A., and Leding, A. R. 



1929. the giant cactus of Arizona. Jour. Hered. 20: 401-414. 



■ — • and Gilman, M. F/ 



1931. a rare parasitic food plant of the southwest. Smithsn. Inst. 

 Ann. Rpt. 1930: 409-416. 

 Thornber, J. J. 



1910. the grazing ranges of Arizona. Ariz. Univ. Bui. 65. 



1911. native cacti as emergency forage plants. Ariz. Agr. Expt. Sta. 

 Bui. 67. 

 University of Arizona. 



1937. botany and range ecology. Ariz. Agr. Expt. Sta. Ann. Rpt. 48: 



39-50. 

 Van Dersal, William R. 



1938. NATIVE WOODY PLANTS OF THE UNITED STATES. THEIR EROSION- 



CONTROL and wild-life values. U. S. Dept. Agr. Misc. Pub. 303. 

 Vestal, P. A. 



1940. NOTES ON A COLLECTION OF PLANTS FROM THE HOPI INDIAN REGION OF 



Arizona made by j. c. owens in 1891. Harvard Univ., Bot. Mus. 

 Leaflet 8: 153-168. 

 Whiting, Alfred F. 



1939. ethnobotany of the hopi. Mus. North. Ariz. Bui. 15. 

 Wood, H. C, et al. 



1926. THE DISPENSATORY OF THE U. S. A. Ed. 21. 



Wooton, E. O., and Standley, P. C. 



1915. flora of new Mexico. U. S. Natl. Mus., Contrib. U. S. Natl. 

 Herbarium 19: 1-1794. 

 Yanovsky, Elias. 



1936. FOOD PLANTS OF THE NORTH AMERICAN INDIANS. U. S. Dept. Agr. 



Misc. Pub. 237. 



