134 INDEX TO AMERICAN BOTANICAL LITERATURE 
Jewett, H. S. Plagiothecium geophilum (Aust.) Grout. Bryologist 
46:8, 9.. -Ja ¥6¥s. 
Kearney, T. H. The wilting coefficient for plants in alkali soils. U.S. 
Dept. Agr. Plant Ind. Circ. 109: 17-25. 4 Ja 1913. 
Kunkel, L. O. A study of the problem of water absorption. Ann. 
Rep. Missouri Bot. Gard. 23: 26-40. 1912. 
Includes experiments with cultures of Monilia sitophila (Mont.) Sacc. 
Learn, C. D. Studies on Pleurotus ostreatus Jacqu. and Pleurotus 
ulmarius Bull. Ann. Myc. 10: 542-556. pl. 16-18. ai D 10tg: 
Lillie, R. S. The rdle of membranes in cell-processes. Pop. Sci. Mo. 
82: 132-152. f. 1-3. F 1913. 
Lipman, C.B. Antagonism between anions as affecting ammonification 
in soils. Centralb. Bakt. Zweit. Abt. 36: 382-394. f. 1-3. 11 Ja 
1913. 
Livingston, B. E. Adaptation in the living and non-living. Am. Nat. 
47: 72-82. F 10913. 
Lloyd, C.G. The polyporoid types of Léveillé at Leiden. Letter No, 
36. Mededeel. Rijks Herb. Leiden 9: 1-5. 15 N 1912. 
Lloyd, C. G. The polyporoid types of Junghuhn preserved at Leiden. 
Letter No. 37. Mededeel. Rijks Herb. Leiden 10: I-5. 15 WN 
1912. ' 
Lloyd, F. E., & Ridgway, C. S. The behavior of the nectar gland in 
the cacti, with a note on the development of the trichomes and 
areolar cork. Plant World 15: 145-156. f. 1-13. Jl 1912. 
Lodge, C.A., & Smith, R.G. Influence of soil decoctions from sterilized 
and unsterilized soils upon bacterial growth. Ann. Rep. Massa- 
chusetts Agr. Exp. Sta. 24: 126-134. Ja 1912. 
Mackenzie, K. K. A new Carex from Alberta. Proc. Biol. Soc. 
Washington 25: 51, 52. 19 Mr. 1912. 
Carex atrosquama Mackenzie. 
Mackenzie, K. K. Western allies of Carex pennsylvanica. Torreya 
13: 14-16. 8 Ja 1913. 
Includes Carex heliophila sp. nov. 
Manns, T. F. Two recent important cabbage diseases of Ohio. Ohio 
Agr. Exp. Sta. Bull. 228: 255-297. f. 1-26. IQII. 
Maxon, W. R. The tree ferns of North America. Smithsonian Rep. 
IQII: 463-491. pl. I-15. 1912. 
Metcalf, M. M. Adaptation through natural selection and ortho- 
genesis. Am. Nat. 47: 65-71. F 1913. 
Meyer, R. LEchinocactus macrodiscus Mart. Monats. Kakteenk. 22: 
179-181. 15 D 1912. : 
