360 Pflanzenkrankheiten. 



Fawcett, H. P., Two fungi as causal agents in gummosis 

 oflemon trees in California. (Phytopathology. III. p. 194 — 

 195. June 1913.) 



Referring to Pythiacystis citrophthora and a Botrytis of the 

 vulgaris group. Trelease. 



Pyles, F., A preiiminary study of ergot of wild rice. 

 (Phytopathology. V. p. 186—192. pl. 11. June 1915.) 



Developmental and inoculation studies lead to the conclusion 

 that this is distinct from what is called Spermoedia Clavus, but the 

 characterization and naming of the species are deferred. 



Trelease. 



Harter, L. and E. C. Field (Tillotson). Experiments on the 

 susceptibility of sweet potato varieties to stem rot. 

 (Phytopathology. V. p. 163-168. June 1915.) 



Referring to the disease ascribed to Fusarium hyperoxysporum 

 and F. batatis. Trelease. 



Hedgeock, G. G., Notes on sorae diseases of trees in our 

 national forest. V. (Phytopathology. V. p. 175— ISl^June 1915.) 



Discussion of the species of Rasoumofskya attacking Gymno- 

 sperms and of their effect on the host, and oi Phoradendron respec- 

 tively on Angiospenns and on Gymnosperms and their effect on the 

 host plants. Trelease. 



Mauns, T. F., The blade blight of oats: a bacterial disease. 

 (Bull. Ohio Agr. Exper. Sta. Oct. 1909.) 



Attributed to associated action of Pseudomonas Avenae and 

 Bacillus Avenae, — both described as new. Trelease. 



Muncie, J. H., Two Michigan bean diseases. (Special Bull, 

 no. 68. Mich. Agr. Coli. Exper. Sta. Mar. 1914.) 



An octavo of 12 pp., with 1 pl. and 2 textfig., referring to Glo- 

 merella {Colletotrichum,) Linde mutthiana and Bacterium Phaseoli. 



Trelease. 



Potter, A. A., The loose kernel smut of Sorghum. (Phyto- 

 pathology. V. p. 149-154. pl. 10. textfig. 1—2. June 1915.) 



Analysis of the distinctions between Sphacelotheca cruenta, the 

 "loose" smut, and 5". Sorghi, the "closed" smut. Trelease. 



Stakman, E. C, A study in cereal rusts. Physiological 

 races. (Bull. 138. Minnesota Agr. Exper. Sta. Feb. 1914.) 



An octavo of 56 pages, with 9 plates, dealing experimentally 

 with grass Puccinias and with the nature of susceptibility and re- 

 sistance to attack in varieties of wheat. Trelease. 



Taubenhaus, J, J., A further study ofsome Gloeosporiums 



