INDEX TO AMERICAN BOTANICAL LITERATURE 597 
Moxley, G. L. Notes on Zauschneria. S. Calif. Acad. Sci. Bull. 15: 
47-54. Jl 1916. 
Nash, G. V. The white cedar and its relatives. Jour. Hort. Soc. 
N.Y. £: 227-234... O rors. 
Norton, J. B.S. Variation in Tithymalopsis. Mem. N. Y. Bot. Gard. 
6: 455-459. 31 Au 1916. 
Norton, J. B. S. Some obscure diseases of peach. Jour. Econ. 
Entomology 3: 228-236. I9gI10. 
Norton, J. B. S. Some unusual tomato variations. Proc. Soc. Hort. 
Sci. 1910: I-5. I9II. 
Ochoterena, I. Fosforescencia de las flores de las Cactaceas. Bol. 
Dir. Est. Biol. 1: 135-140. N 1915. [Illust.] 
O’Gara, P. J. A bacterial disease of western wheat-grass, Agropyron 
Smithii. Occurrence of a new type of bacterial diseases in American 
Phytopathology 6: 341-350. pl. 9-13. 12S 1916. 
A planobacter A gropyri sp. nov. ‘ 
Orton, C. R. North American species of Allodus. Mem. N. Y. Bot. 
Gard. 6: 173-208. 31 Au 1916. 
Includes descriptions of four new species. 
Osterhout, W. J. V. A dynamical theory of antagonism. Proc. Am. 
Philos. Soc. 55: 533-553. f. I-12. 19 Au 1916. 
Osterhout, W. J. V. On the nature of antagonism. Science II. 41: 
255, 256. 12 F 1915. 
Overholts, L. O., & Overholts, M. F. Some Kentucky fungi. Myco- 
logia 8: 249-252. 14S 1916. 
Patterson, F. W., & Charles, V. K. The occurrence of bamboo smut 
in America. Phytopathology 6: 351-356. f. I. 125 1916. 
Pratt, O. A. Control of the powdery dry rot of western potatoes 
caused by Fusarium trichothecioides. Jour. Agr. Research 6: 817- 
832. pl. 108. 21 Au 1916. 
Rangel, E. Fungos parasitas do guando Cajanus indicus Spreng. 
A Lavoura 18: 5-12. pl. 1-3. Ap 1914. 
Includes Vellosiella gen. nov., Cercospora —— Calletotrichum Cajani, 
Phyllosticta Cajani, and Phoma Cajani, spp. nov The same article is also published 
in French, pp. 12-18, in the same number of this poco 
Roberts, J. W. Sources of the early infections of apple bitter-rot. 
Jour. Agr. Research 4: 59-64. pl. 7. 15 Ap 1915- 
Rydberg, P. A. Vegetative life zones of the Rocky Mountain region. 
Mem. N. Y. Bot. Gard. 6: 477-499. 31 Au 1916. 
