LITERATURE CITED 



Adams, J. F. 



1919. Rusts on conifers in Pennsylvania. 

 Penn. State Coll. Agr. Exp. Sta. Bull. 

 160:3-30. 



Anderson, Neil Albert. 



1960. Studies on the effects of the 

 Cronartium rusts on jack pine and the 

 epidemiology of these rusts. Diss. Abstr. 

 21:721. 



Andrews, E. A., Gloria Rail, and Paul Lupcho. 



1963. Infection of Pittus contorta by 

 basidiospores of Cronartium comandrae. 

 (Abstr.) Phytopathology 53:870. 



Arthur, J. C. 



1929. The plant rusts (Uredinales). 446 pp. 

 New York: John WUey and Sons. 



Bega, R. V. 



1960. The effect of environment on germi- 

 nation of sporidia in Cronartium ribicola. 

 Phytopathology 50:61-69. 



Duncan, D. B. 



1955. Multiple range and multiple F tests. 

 Biometrics 1 1:1-42. 



Hedgcock, George G., and N. Rex Hunt. 



1920. Notes on Peridermium harknessii 

 Phytopathology 10:395-397. 



Hedgcock, George G., and William H. Long. 



1915. A diseaseofpinescausedby 

 Cronartium pyriforme. U. S. Dep. Agr. Bull. 

 247, 20 pp. 



Hirst, J. M. 



1952. An automatic volumetric spore trap. 

 Ann. Appl. Biol. 39:257-265. 



Hirt, Ray R. 



1935. Observations on the production and 

 germination of sporidia of Cronartium 

 ribicola. N.Y. State Coll. Forest. Tech. Pub. 

 46, 25 pp. 



Hungerford, Kenneth E. 



1957. A portable instrument shelter for eco- 

 logical studies. Ecology 38:150-151. 



Kimmey, James W. 



1958. Forest diseases in multiple-use manage- 

 ment in western United States. Soc. Amer. 

 Forest. Proc. 1958:74-77. 



Krebill, R. G. 



1965. Comandra rust outbreaks in lodgepole 

 pine. J. Forest. 63:519-522. 



Laycock, W. A., and R. G. Krebill. 



1967. Comandra, grazing, and comandra 

 bhster rust. U.S. Forest Serv. Res. Pap. 

 INT-36, 9 pp. 



MacLachlan, J. D. 



1935. The dispersal of viable basidiospores of 

 the Gymnosporangium rusts. J. Arnold 

 Arboretum 26:41 1-422. 



Mains, E. B. 



1916. Some factors concerned in the germi- 

 nation of rust spores. Mich. Acad. Sci. Rep. 

 17:13^140. 



Meinecke, E. P. 



1928. The evaluation of loss from kilUng dis- 

 eases in the young forest. J. Forest. 

 26:283-298. 



Meinecke, E. P. 



1929. Experiments with repeating pine rusts. 

 Phytopathology 19:327-342. 



Mielke, James L. 



1957. The comandra bUster rust in lodgepole 

 pine. U.S. Forest Serv., Intermountain For- 

 est and Range Exp. Sta. Res. Note 46, 8 pp. 



Mielke, James L. 



1961. Comandra bhster rust. U.S. Dep. Agr., 

 Forest Serv., Forest Pest Leaflet 62, 7 pp. 



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