InpEX TO AMERICAN BOTANICAL LITERATURE 223 
La Rue, C. D. Lightning injury to Hevea brasiliensis. Phyto- 
pathology 12: 386-389. 11 S 1922. 
La Rue, C. D. The results of selection within pure lines of 
Pestalozzia Guepini Desm. Genetics 7: 142-201. f. I-I0. 
Mr 1922. 
Lehman, S. G. Pod and stem blight of the soybean. Jour. 
Elisha Mitchell Soc. 38: 13. S 1922 
Leonian, L. H. Stem and friut blight of peppers caused by 
Phytophthora Capsici sp. nov. Phytopathology 12: 401- 
408. f..r, 2... 17 O 1922. 
Levine, M. The origin and development of lamellae in Agaricus 
campestris and in certain species of Coprinus. Am. Jour 
Bot. 9: 509-533. pl. 28-35. 27 N 1922. 
Lipman, C. B., & Taylor, J.K. Proof of the power of the wheat 
plant to fix atmospheric nitrogen. Science IT. 56: 605, 606. 
44 N 1922. 
Long, B. Sonchus uliginosus occurring in the Philadelphia area. 
Torreya 22: 91-98. D 1922. 
Long, C. A. E. Notable additions to the flora of Knox Co., 
Maine. Rhodora 24: 181-183. 27 S. 1922. 
Lyon, H. L. Hawaiian forests. Hawaiian For. & Agr. 19: 
159-162. Jl 1922. 
MacInnes, J. The growth of the wheat-scab organism in re- 
lation to hydrogen-ion concentration. Phytopathology 12: 
290-294. f. 1. 12 Au 1922. 
Mackenzie, K. K. The records for Limnobium Spongia in the 
northern United States. Torreya 42: 102-104. D 1922. 
Mackenzie, K. K. Viburnum cassinoides. Addisonia 7: 17. pl. 
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Maldonado, A. & E. Contribucion al estudio de los productos 
vegetales que se encuentran en los “‘restos de cocina’ 
precolombinos de Tambo Inga. [Peru]. Arch. Asoc. 
Peruana Prog. Cien. 1: 118-130. pl. 13-19. 1921. 
