INDEX TO AMERICAN BOTANICAL LITERATURE 
1917-1919 
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 relate exclusively.to forestry, agriculture, iidicdtiare, 
pc aaa products of vegetable origin, or laboratory methods are not included, and 
attempt is made to index the literature of bacteriolo ogy. An occasional exception is 
‘si 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. 
This Index is reprinted monthly on cards, and furnished in this form to subscribers 
spondence relating to the card issue should be addressed to the Treasurer of the Torrey 
Botanical Club 
Abrams,L.R A new California Cypress. Torreyatg: 92. 9 Jl 1919. 
Cupressus nevadensis sp. nov. 
Arthur, J.C. Acorrection. Torreya 19: 83. 25 Je 1919. 
Syntherisma pruriens, error in publication. 
Ashe, W. W. Notes on trees and shrubs in the vicinity of Washington. 
Bull. Torrey Club 46: 221-226. 8 Jl 1919. 
Amelanchier sera and A. micropetala (Robinson), spp. nov., are described. 
Bailey, I. W. Structure development, and distribution of so-called 
rims or bars of Sanio. Bot. Gaz. 67: 449-468. pl. 13-15. 21 Je 
I9I9. 
Barnhart, J. H. Brackenridge and his book on ferns. Jour. N. Y. 
Bot Gard. 20: 117-124. Je 1919. 
Benedict, R. C. The simplest fern in existence. Am. Fern Jour. 9: 
48-50. pl. 3. Jl igrog. 
Bigelow,H. C. A fern from the battle-ground. Am. Fern Jour. 9: 58. 
Jl 1919. 
Bisby, G. R. Studies on Fusarium diseases of potatoes and truck 
crops in Minnesota. Minnesota Agr. Exp. Sta. Bull. 181: 1-47 
f. I-30. Mr 1919. 
Blakeslee, A. F. A unifoliolate mutation in the Adzuki bean. Jour. 
Heredity 10: 153-155. f. 1, 2. 26 My 1919. 
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