INDEX TO AMERICAN BOTANICAL LITERATURE 655 
Marsh, C. D., Clawson, A. B., & Marsh, H. Larkspur poisoning of 
- live stock. U.S. Dept. Agr. Bull. 365: 1-90. pl. 1-15 +f. I-12. 
8S 1916. 
Matz, J. A method to induce sporulation in cultures of Botryosphaeria 
berengeriana. Phytopathology 6: 387-389. f. zr. O 1916. 
Maxon, W. R. Notes on American ferns—X. Am. Fern Jour. 6: 
65-68. S 1916. 
Maza, M. G. de la. Determinacion de plantas cubanas fanerogamas. 
An. Acad. Cie. Habana 49: 556-613. 1912; 895-910. 1913. 
Meinecke, E. P. Forest pathology in forest regulation. U.S. Dept. 
Agr. Bull. 275: 1-62. 7 Ap 1916. 
Merrill, E. D. New or interesting Philippine Vitaceae. Philip. Jour. 
Sci. 13: (Bot.) 125-145. My 1916. 
Fourteen new species are described. 
Morse, W. J. Further observations relative to the ability of the apple 
scab fungus to live over winter on young twigs. Maine Agr. Exp. 
Sta. Bull. 252: 191, 192. My 1916. 
Morse, W. J. Two apple-leaf troubles new to Maine. Maine Agr. 
Exp. Sta. Bull. 252: 186-190. f. 26, 27. My 1916. 
Chlorosis and silver leaf. 
Nelson, A. The trend and influence of certain phases of taxonomy. 
Science II. 39: 921-927. 26 Je 1914. 
Nieuwland, J. A. Cleistogamous flowers in the pansies. Am. Mid. 
Nat. 4: 464-466. 26 Jl 1916. 
Nieuwland, J. A. Cleistogamy in Cubelium. Am. Mid. Nat. 4: 501, 
502. S 1916. 
Nieuwland, J. A. Critical notes on new and old genera of plants—VI. 
Am. Mid. Nat. 4: 333-335. Ja 1916. 
Nieuwland, J. A. Proliferation in Calendula. Am. Mid. Nat. 4: 502. 
S 1916. : 
Norton, J. B. S. Some Maryland woodland plants for spring study. 
Maryland Agr. College Bull. 3°: 1-29. pl. Z-z0. Mr 1907. 
Osterhout, W. J. V. Antagonism and Weber's law. Science Il. 44: 
318-320. 1S 1916. 
Osterhout, W. J. V. The penetration of balanced solutions and the 
theory of antagonism. Science II. 44: 395, 396. 15S 1916. 
