INDEX TO AMERICAN BOTANICAL LITERATURE 263 
Dalbey, N. E. Corn disease caused by Phyllachora graminis. Phyto- 
pathology 7: 55, 56. f. z. 7F 1917. 
Detwiler, S. B. The locusts. Identification and characteristics. 
Am. Forest. 23: 88-93. F 1917.  [Illust.] 
Dorsett, P. H., Shamel, A. D., & Popenoe, W. The navel orange of 
Bahia; with notes on some little-known Brazilian fruits. Pes 
Dept. Agr. Bull. 445: 1-35. pl.. 1-24 +f. 2. 10 F 1917. 
Drennan, G. T. The crape myrtle. Am. Bot. 23: 20, 21. F 1917. 
Lagerstroemia indica. 
Emerson, R. A. Genetical studies of variegated pericarp in maize. 
Genetics 2: 1-35. f. I-4. Ja 1917. 
Fink, B. Twenty-five years of advance in botany. Proc. Ohio Acad. 
Sci. 6: 309-325. 1916. 
Goodspeed, T. H. Notes on the Californian species of Trillium L.— 
IV. Teratological variations of Trillium sessile var. giganteum 
H.& A. Univ. Calif. Publ. Bot. '7: 69-100. pl. r1-17. 17 Ja 1917. 
Goodspeed, T. H., & Clausen, R. E. The nature of the F; species 
hybrids between Nicotiana sylvestris and varieties of Nicotiana 
tabacum, with special reference to the conception of reaction system 
contrasts in heredity. Univ. Calif. Publ. Bot. 5: 301-346. pl. 
37-48. 17 Ja 1917. 
Grout, A. J. A fossil Camptothecium. Bryologist 20:9. pl. r. 10 F 1917. 
Harper, R. M. A quantitative, volumetric and dynamic study of the 
vegetation of the Pinus Taeda belt of Virginia and the Carolinas. 
Bull. Torrey Club 44: 39-57. f.1. 12 F 1917. 
Higgins, B.B. A disease of pecan catkins. Phytopathology 7: 42-45. 
Stee =F TOR, 
Hutchinson, A.H. Morphology of Keteleeria Fortunei. Bot. Gaz. 63: 
124-134. pl. 7, 8. +f. 1-3. 15 F 1917. 
Ishikawa, M. A list of the number of chromosomes. Bot. Mag. 
Tokyo 30: 404-448. f. 1-32. D 1916. 
Johnston, J. R. History and cause of the rind disease of sugar cane. 
Jour. Board Comm. Agr. Porto Rico 1: 17-45. pl. 1. Ja 1917. 
Judd, C. S. Douglas fir in Hawaii. Hawaiian Forest. & Agr. 13: 
124-127. Ap 1916. [Illust.] 
Judd, C.S. The first Algaroba and royal palm in Hawaii. Hawaiian 
Forest. & Agr. 13: 330-335. $1916. [IlIlust.] 
Keitt, G. W. Peach scab and its control. U.S. Dept. Agr. Bull. 395: 
1-66. pl. 1-6 +f. 1-6. 18 Ja 1917. 
