564 INDEX TO AMERICAN BOTANICAL LITERATURE 
Hoffman, C. A contribution to the subject of soil bacteriological 
analytical methods. Centralb. Bakt. Zweite Abt. 34: 385-388. 
20 Jl 1912. 
Hunt, B. W. Fig breeding. Bull. Univ. Georgia 12: 107-110. Jl 
1912. 
Jennings, H. S. Production of pure homozygotic organisms from 
heterozygotes by self-fertilization. Am. Nat. 46: 487-491. Au 
1912. 
Jones, W. R. The development of the vascular structure of Dianthera 
americana. Bot. Gaz. 54: 1-30. pl. 1-4. 15 Jl 1912. 
King, W. L. The flora of Northampton County, Pennsylvania. 
Torreya 12: 97-107. f. 1. 10 My 1912; 124-132. 11 Je 1912; 165- 
173. 11 Jl 1912; 183-189. 9 Au 1912; 208-215. 35 1912 
Knowlton, C. H. New stations for Paspalum snentsiopiade Rho- 
dora 14: 174, 175. 23 Au 1912. 
Lager, J. E. Orchids. Gard. Chron. Am. 15: 41-45. Je 1912; 15: 
85-88. Jl 1912. 
Lamb, W. H. The catalpa septum. A factor in distinguishing hardy 
catalpa. Proc. Soc. Am. Foresters 7: 80, 81. f. 1, 2. Mr 1912. 
[Lloyd, C. G.] Index of the mycological writings of C. G. Lloyd, vol. 
III. 1909-1912. 1-16. . Cincinnati. 1912. 
Long, W. H. Two new — of rusts. Mycologia 4: 282-284. 28 
Au 1912. 
Tricella acuminata gen. et sp. nov. and Peridermium incons picuum sp. NOV. 
Lovell, J. H. Bees which visit only one species of flower. Pop. Sci. 
Mo. 81: 197-203. Au 1912. 
Lunt, J. R. Succisa pratensis in Massachusetts. Rhodora 14: 174 
23 Au 1912. 
Lutz, A.M. Triploid mutants in Oenothera. Biol. Centralb. 32: 385- 
435. f. 1-7. 20 Jl 1912. 
Mann, A. The preparation of unbroken pollen mother-cells and other 
cells for studies in mitosis. Science II. 36: 153-155. 2 Au 1912+ 
Merrill, E. D. Sertulum bontocense. New or interesting plants 
collected in Bontoc subprovince, Luzon, by Father Morice Vanovet- 
bergh. Philip. Jour. Sci. 7: (Bot.) 71-107. Je 19 ‘ 
Murrill, W. A. The Agaricaceae of the Pacific saoculh Mycologi4 
4: 231-262. 28 Au 1912. 
i scribed in Lepiota (15), Venenarius (3), Crepidotus (1), Plus 
teolus (2), Gymnopilus (14), Pholiota (4), and Hypodendrum (t). 
Nash, G. V. Winter-killing of evergreens. Jour. N. Y. Bot. Gard. 13+ 
110-120, Au 1912. 
