526 INDEX TO AMERICAN BOTANICAL LITERATURE 
Jones, D.H. A morphological and cultural study of some azotobacter. 
Centralb. Bakt. Zweite Abt. 38: 14-25. pl. 1-4. 21 Je 1913 
Kellerman, K. F., & Leonard, L. T. The prevalence of Bacillus 
radicicola in soil. Science II. 38: 95-98. 18 Jl 1913. 
Knowlton, C. H., and others. Reports on the flora of the Boston 
district—XVII. Rhodora 15: 122-132. 1 Jl 1913. 
Knudson, L. Observations on inception, season, and duration of 
cambium development in the American larch. [Larix laricina 
(Du Roi) Koch.] Bull. Torrey Club 40: 271-293. pl. 18, 19. 18 Je 
1913. 
Kunkel, O. The production of a promycelium by the aecidiospores of 
Caeoma nitens Burrill. Bull. Torrey Club 40: 361-366. f. I. 
18 Jl 1913. 
Lamb, W. H. A key to common Nebraska shrubs. Univ. Nebraska 
Forest Club. Ann. §: [1-7]. 1913. 
Reprinted without pagination. 
Land, W. J. G. Vegetative reproduction in an Ephedra. Bot. Gaz. 
55: 439-445. f. 1-5. 16 Je 1913. 
Lemoine, [M.] Mélobésiées. Revision des Mélobésiées antarctiques. 
In Charcot, J., Deuxiéme expédition —— francoise (1908- 
1910). 1-67. pl. 1, 2. 1913. 
Lipman, C. B., & Wilson, F. H. Toxic inorganic salts and acids as 
affecting plant growth. (Preliminary communication.) Bot. Gaz. 
55: 409-420. 16 Je 1913. 
Long, B. Southerly range extensions in Antennaria. Rhodora 15: 
117-122; t Jl 1913. 
Maxon, W. R. Saffordia, a new genus of ferns from Peru. Smith- 
sonian Misc. Coll. 614: 1-5. pl. r, 2 +f. 1. 26 My 1913. 
Includes Saffordia induta sp. nov 
Maza, M.G.dela. Determinaci6n de plantas cubanas (fanerégamas). 
[1], 2, [3-9]. Habana. 1912. 
Melchers, L. E. The mosaic disease of the tomato and related plants. 
Ohio Nat. 13: 149-173. pl. 7, 8 + f. 1. Je 1913. 
Morse, W. J. Powdery scab of potatoes in the United States. Science 
I]. 38: 61, 62. 11 Jl 1913. 
Murrill,W.A. The Agaricaceae of the Pacific coast—IV. New species 
of Clitocybe and Melanoleuca. Mycologia 5: cates Ji 1913. 
Includes 21 new species in Clitocybe and 25 in Melanole 
Norton, A. H. Plants from islands and coast of aan, Rhodora 15: 
117-136. 1 Jl 1913. 
Norton, A. H. Some noteworthy plants from the islands and coast of 
Maine. Rhodora 15: 137-143. Au 1913. 
