INDEX TO AMERICAN BOTANICAL LITERATURE 595 
Hart, E. B., & Tottingham, W. E. Relation of sulphur compounds to 
plant nutrition. Jour. Agr. Research 5: 233-250. pl. 20-22, 8 N 
IQI5. 
‘Haskell, R. J. Potato wilt and tuber rot caused by Fusarium eumartii. 
Phytopathology 6: 321-327. f. I-3. 12S 1916. 
Headley, F. B., Curtis, E. W., & Scofield, C.S. Effect on plant growth 
of sodium salts in the soil. Jour. Agr. Research 6: 857-869. f. 1-8 
28 Au 1916. 
_ Holden, R. A Jurassic weed from Scotland. New Phytologist 14: 
205-209. pl. 3. Jl 1915. 
Hollick, A. A fossil fern monstrosity. Mem. N. Y. Bot. Gard. 6. 
473, 474. pl. 31, 32. 31 Au 1916. 
Anomalofilicites monstrosus gen. et sp. nov. 
Howard, W. L. An experimental study of the rest period of plants. 
Physiological changes accompanying breaking of the rest period. 
Missouri Agr. Exp. Sta. Research Bull. 21: 1-72. f. 1-10. Je 1915. 
Howe, M. A., & Hoyt, W. D. Notes on some marine algae from the 
vicinity of Beaufort, North Carolina. Mem. N. Y. Bot. Gard. 6: 
105-123. pl. r1-15. 31 Au 1916. 
Includes Microchaete nana, Derbesia turbinata, Phaeostroma pusillum, Erythro- 
cladia recondita, E. vagabunda, Acrochaetium infestans, and A. affine, spp. nov. 
Howitt, J. E., & Stone, R.E. Smuts and rusts of grain crops. Ontario 
Dept. Agr. Bull. 229: 1-24. f. 1-15. F 1915. 
Humphreys, E. W. A new fossil fig and its significance. Guide to 
Nature 8: 82-84. f. 1, 2. Au I9I5. 
Humphreys, E. W. Triassic plants from Sonora, Mexico, including a 
Neocalamites not previously reported from North America. Mem. 
N. Y. Bot. Gard. 6: 75-78. pl. 5. 31 Au 1916. 
Kellerman, K. F. Cooperation in the investigation and control of 
plant diseases. Mem. N. Y. Bot. Gard. 6: 517. 31 Au rgi6. . 
Kern, F. D. Japanese species of Gymnosporangiwm. Mem. N. Y. 
Bot. Gard. 6: 245-252. 31 Au 1916. 
Kurtz, F. Essai d’une bibliographie botanique de I’Argentine. Bol. 
Acad. Nac. Cien. Cordoba 19: 221-376. 245 1913- 
Lemoine, P. Melobesieae. Jour. Linnean Soc. 43: 1937200. pl. 9, 10. 
N 1915. : 
Levine, M. Somatic and reduction divisions in certain species of 
Drosera. Mem. N. Y. Bot. Gard. 6: 125-147. pl. 16-19. 31 Au 
1916. 
