LITERATURE CITED. 



(1) Allen, E. T. 



1902. Western hemlock. U. S. Dept. Agr., Biar. Forestry Bull. 33, 55 p., 

 5 fig., 13 pi. 



(2) Blumer, J. C. 



1910. Mistletoe in the Southwest. In Plant World, v. 13, no. 10, p. 

 240-246. 



(3) Beewer, W. H., and Watson, Seeeno. 



1876-1880. Botany. [Geological Survey of California.] 2 v. Cam- 

 bridge, Mass. 



(4) Coulter, J. M. 



[1909.] New Manual of Botany of the Central Rocky Mountains . . . 

 646 p. New York. 



(5) Coville, F. V. 



1893. Botany of the Death Valley expedition . . . In Contrib. U. S. 

 Nat. Herb., v. 4, 363 p., 21 pi., 1 map. 



(6) Engelmann, George. 



1887. Loranthace^. In Report upon United States Geographical Surveys 

 West of the One-Hundredth Meridian, v. 6, Botany, p. 251-254. 



(7) .Tepson, W. L. 



1901. A Flora of Western Middle California. 625 p. Berkeley, Cal. 



(8) MacDougal, D. T. 



1899. Seed dissemination and distribution of Razoumofskya robusta 

 (Engelm.) Kuntze. In Minn. Bot. Studies, s. 2, pt. 2, p. 169-173, 

 1 fig., pi. 15-16. 

 Meinecke, E. p. 



(9) 1912. Parasitism of Phoradendron juniperinum libocedri Engelm. In 



Proc. Soc. Amer. Foresters, v. 7, no. 1, p. 35-41, pi. 1-e. 



(10) 1914. Forest tree diseases common in California and Nevada. 67 p., 



24 pi. Washington, D. O. Published by the U. S. Dept. Agr., 

 Forest Service. 



(11) Nelson, Aven. 



1913. Contributions from the Rocky Mountain Herbarium. XIII. In 

 Bot. Gaz., V. 56, no. 1, p. 63-71. 



(12) Pearson, G. A. 



1912. The influence of age and condition of the tree upon seed produc- 

 tion in western yellow pine. U. S. Dept. Agr., Forest Serv. Cir. 

 196, 11 p. 



(13) Pierce, G. J. 



1905. The dissemination and germination of Arceuthobium occidentale 

 Eng. In Ann. Bot., v. 19, no. 73, p. 99-113, pi. 3-4. 



39 



o 



