INDEX TO AMERICAN BOTANICAL LITERATURE 
1915-1917 
The aim of this Index is to include all current botanical literature written by 
Americans, published in America, or based upon American material ; the word Amer- 
ica being used in the broadest sense. 
Reviews, and papers that Tehic exclusively to forestry, agriculture, horticulture, 
manufactured products of vegetable origin, or laboratory methods are not included, and 
no attempt is made to index the literature of bacteriology. An occasional exception is 
made in favor of some paper appearing in an American periodical which is devoted 
wholly to botany. Reprints are not mentioned unless they differ from the original in 
some important particular. If users of the Index will call the attention of the editor 
to errors or omissions, their kindness will be appreciated. 
his Index is reprinted 25 ne on cards, aia “furnished i in this form to subscribers 
at the rate of one cent for ard, Selections of cards are not permitted ; each 
subscriber must take all canis: sciicakad during the term of his subscription, Corre- 
pondence relating to the card issue should be saaieeied to the Treasurer of the Torrey 
Roce al Cl 
Allard, H. A. Effect of environmental conditions upon the number of 
leaves and the character of the inflorescence of tobacco plants. 
Am. Jour. Bot. 3: 493-501. pi. 20-23. 23 D 1916. 
Allard, H. A. A specific mosaic disease in Nicotiana viscosum distinct 
from the mosaic disease of tobacco. Jour. Agr. Research 7: 481-486. 
pl. 35, 36. 11 D 1916. 
Benedict, R. C. Can ferns be identified by taste? Am. Fern. Jour. 6: 
121-123. L)..1916. 
Benedict, R.C. More about Ophioglossum vulgatum. Am. Fern Jour. 
6: 124,125. D 1916. 
Bicknell, E. P. Pinus Banksiana on Nantucket. Rhodora 18: 241, 
242. 1 D 1916. 
Bisby, G.R. The Uredinales found upon the Onagraceae. Am. Jour. 
Bot. 3: 527-561. 6 Ja 1917. 
Bowman, H. H. M. Physiological studies on Rhizophora. Proc. Nat. 
Acad. Sci. 2: 685-688. 15 D 1916. : 
Boynton, K. R. Chionodoxa Luciliae gigantea. Addisonia 1: pl. 33. 
30 D 1916. 
Brandt, R. P. Notes on the Californian species of Trillium L.—III. 
Seasonal changes in Trillium species with special reference to the 
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