592 INDEX TO AMERICAN BOTANICAL LITERATURE 
Bartlett, H. H. The status of the mutation theory, with especial 
reference to Oenothera. Am. Nat. 50: 513-529. S 1916. 
Bates, J. M. A new species of Allium. Am. Bot. 22: 58, 59. My 
1916. 
Allium lavendulare Bates. 
Beal, W. J. Some things learned in managing a botanical garden, 
Mem. N. Y. Bot. Gard. 6: 513-516. 31 Au 1916. 
Berry, E. W. The age of the Cretaceous flora of southern New York 
and New England. Jour. Geol. 23: 608-618. N 1915. 
_ Berry, E. W. An Eocene ancestor of the Zapodilla. Am. Jour. Sci. 
IV. 39: 208-213. pl. 1. F 1915. 
Berry, E. W. Fruits of a date palm in the Tertiary deposits of eastern 
Texas. Am. Jour. Sci. IV. 37: 403-406. f. r, 2. My 1914. 
Berry, E.W. Paleobotanic evidence of the age of the Morrison forma- 
tion. Bull. Geol. Soc. Am. 26: 335-342. 17 Au IQI5. 
Blakeslee, A. F. Inheritable variations in the yellow daisy (Rudbeckia 
hirta). Mem. N. Y. Bot. Gard. 6: 89. 31 Au 1916. 
Blakeslee, A. F. Lindner’s roll tube method of separation cultures. 
Phytopathology 5: 68-70. pl. 7. F 1915. 
Black, C.A. The nature of the inflorescence and fruit of Pyrus Malus, 
Mem. N. Y. Bot. Gard. 6: 519-547. pl. 33-40. 31 Au 1916. 
Booth, R. C. Atriplex hymenelytra and one of its habitats. S. Calif, 
Acad. Sci. Bull. 15: 37-41. Jl 1916. [Illust.] 
Boyce, J. S. Spore variation in Neopeckia Coulteri. Phytopathology 
6: 357-359. 12 S 1916. 
Brandegee, T.S. Plantae mexicanae Purpusianae—VII. Univ. Calif. 
Publ. Bot. 6: 177-197. 300 1915. 
Includes descriptions of fifty-nine new species. 
Briggs, L. J., & Schantz, H. L, Influence of hybridization and cross- 
pollination on the water requirement of plants. Jour. Agr. Research 
4: 391-402. pl. 58 + f.7. 16 Au 1915. 
Britton, N. L. The vegetation of Anegada. Mem. N. Y. Bot. Gard. 
6: 565-580. 31 Au 1916, 
Includes Acacia anegadensis and Arthonia anegadensis Riddle, spp. nov. 
Brown, P. E. Bacterial activities and crop production. Iowa Agt- 
Exp. Sta. Research Bull. 25: 359-388. Jl,1915. 
Bruner, S.C. A new species of Endothia. Mycologia 8: 239-242: 
pl. 192. 14S 1916. 
