﻿Index to American botanical literature 425 



Grout, A. J. Some ( 

 Ap 1915; 11. Th 

 7-4. Myi9i5. [Illust.] 



Harris, J. A., Lawrence, J. V., & Gortner, R. A. On the osmotic f 

 pressure of the juices of desert plants. Science II. 41: 656-658. : 

 30 Ap 1915. - 



Hasse, C. H. Pseudomonas citri, the cause of Citrus canker. [A pre- 

 liminary report.] Jour. Agr, Research 4: 97-100. pi. g, 10. 15 i 

 Ap 1915. 1 



Headden, W. P. Yellow-berry in wheat— its cause and prevention. 

 Colorado Agr. Exp. Sta. Bull. 205: 1-38. F 191 5. [Illust.] , 



Hedgcock, G. G. Injury by smelter smoke in southeastern Tennessee. \ 

 Jour. Washington Acad. Sci. 4: 70, 7i- 19 F I9I4- ; 



Herriot, "W. The Rosaceae and Leguminosae of Gait, Ont. and • 

 vicinity. Ontario Nat. Sci. Bull. 7: 28-34. 1912. 



Hoagland, D. R. Organic constituents of Pacific coast kelps. Jour. \ 

 Agr. Research 4: 39-58. 15 Ap 1 91 5. 



Hollick, A. A new fossil species of Ficus and its climatic significance. \ 

 Jour. N. Y. Bot. Gard. 16: 43-47- P^- 52, 53- 10 Ap 1915. 



Holzinger, J. M. Natural history. History of Winona County. \ 



364-381. Chicago, 1913. \ 



Howe, R. H. Classification de la famille des Usneaceae dans I'Am^r- 1 



ique du Nord. 1-32. pi. j-io. Paris, 191 2. ] 



Hutchinson, A. H. On the male gametophyte of Picea canadensis. [ 



Bot. Gaz. 59: 287-300. pi. 15-19 +/• a-u. 15 Ap 1915. - ; 



Jamieson, C. O. Phoma destructiva, the cause of a fruit rot of the ; 



tomato. Jour. Agr. Research 4: 1-20. pi. a, b, 1-6. 15 Ap 1915. - 

 Kaczmarek, R. M. Crocion achlydophyllum (Greene). An ecological \ 



and anatomical study. Am. Mid. Nat. 4: 74-88. pi. 4-10. My ■ 



1915- 

 Kenoyer, L. A. Notes on variation in Micranthes texana. Proc. Iowa 



Acad. Sci. 21: 123, 124. pi. 17- 1914- 

 Kern, F. D. The genetic relationship of parasites. Am. Jour. Bot. 



2: 116-131. 23 Ap 1915. 

 Klugh, A. B. The flora of the sand dunes of Prince Edward County. \ 



Ontario Nat. Sci. Bull. 7: 40-51- /• -r- -^5- 1912. [Illust.] 

 Klugh, A. B. The hydrogohytic formations of Lake Opinacon. On- . 



tario Nat. Sci. Bull. 7: 63. 1912. ; 



