INDEX TO AMERICAN BOTANICAL LITERATURE 
(1910) 
The aim of this Index is to include all current botanical literature written by 
Americans, published in seat or based upon American material ; the word,Amer- 
ica being used in its broadest s 
Reviews, and papers which ce exclusively to forestry, agriculture, horticulture, 
manufactured products of vegetable origin, or laboratory methods are not inc 
noa ttempt is made to index the literature of bacteriology. An occasional exception is 
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 cee pee kindness will be appreciated 
This d monthly on cards, and furnished i in this form to subscribers, 
at the rate of one sek for each card. Selections of cards are not permitted ; each 
subscriber must take all cards published during the term of his subscription. Corre- 
spondence lees to the card-issue should be addressed to the Treasurer of the Torrey 
Botanical Club 
Agrelius, F. U. G. Investigations regarding the phloém and food-conduc- 
tion in plants. Kansas Univ. Sci. Bull. 5: 169-179. pl. 36, 37- Ap 1910. 
4 Bailey, I. W. Oxidizing enzymes and their relation to “sap stain’”’ in lum- 
ber. Bot. Gaz. 50: 142-147. 18 Au Igto. 
Bartlett, H. H. Vernonia georgiana, a new species related to V. oligo- 
phylla. Rhodora 12: 171, 172. 15 Au 1910. 
Bicknell, E. P. Have we enough New England blackberries? Bull. 
Torrey Club 37: 393-403. 8S 1910. 
Billings, F. H. The nutrition of the embryo sac in certain Labiatae. 
Kansas Univ. Sci. Bull. 5: 67-83. pl. rr-14. Ap 1910. 
Bunton, L. Histology of Townsendia exscapa and Lesquerella spathulata. 
Kansas Univ. Sci. Bull. 5: 183-205. pl. 38-40. Ap 1910. 
Christensen, C. Ueber einige Farne in O. Swartz’ herbarium. Arkiv Bot. 
9": 1-46. pl. 1-5. 22 F 1910. 
Clark, E. D. The plant oxidases. 1-111. Easton, Pa. 1910. 
Clute, W. N. The arrow-leaved Hemionitis. Hemionitis arifolia. 
Bull. 18: 76-78. Jl 1910. [IIlust.] 
Cockerell, T. D. A. A new variety of the sunflower. Science II. 32: 384. 
16 S 1910. 
. Fern 
519 
