Index to American ^Iycological Literature 285 
Heald, F. D., & Gardner, M. W. Preliminary note on the relative 
prevalence of pycnospores and ascospores of the chestnut-blight 
fungus during the winter. Science II. 37 : 916, 917. 13 Je 1913. 
Holway, E. W. D. North American Uredineae 1:81-95. pi. 
37-44. II Je 1913. 
Includes Puccinia poromera, P. Pseiidocymopferi and P. Cynomarathri, 
spp. nov. 
Howe, R. H. Lichens of Mount Katahdin, iNIaine. Bryologist 
16:33-36. My 1913. 
Jones, D. H. A morphological and cultural study of some Azoto- 
bacter. Centralb. Bakt. Zweite Abt. 38: 14-25. pi. 1-4. 21 Je 
1913- 
Kaiser, G. B. Slime mould growing on a moss. Bryologist 16 : 
45. My 1913. 
Keith, S. C. Factors influencing the survival of bacteria at tem- 
peratures in the vicinity of the freezing point of water. Sci- 
ence II. 37 : 877-879. 6 Je 1913. 
Kellerman, K. F., & Leonard, L. T. The prevalence of Bacillus 
radicicola in soil. Science II. 38 : 95-98. 18 J1 1913. 
Kunkle, 0. The production of a promycelium by the aecidio- 
spores of Caeoma nitens Burrill. Bull. Torrey Club 40: 361- 
366. /. /. J1 1913. 
Melchers, L. E. The mosaic disease of the tomato and related 
plants. Ohio Nat. 13: 149-173. pi. 7, i. Je 1913. 
Merrill, G. K. Florida lichens. Bryologist 16: 39-41. /. i. 
]\Iy 1913. 
Merrill, G. K. Lichens from Java. Torreya 13: 133-137. 
9jei9i3. 
Millspaugh, C. F. The living flora of West Virginia. West Vir- 
ginia Geol. Surv. 5 (A) : 1-389, 454-486. 1913. [Illust.] 
Includes a list of fungi. 
Morse, W. J. Powdery scab of potatoes in the United States. 
Science II. 38 : 61, 62. ii J1 1913. 
