Index to American Mycological Literature 285 



Davis, J. J. Notes on parasitic fungi in Wisconsin — IV. Trans. 

 Wisconsin Acad. Sci. 19: 671-689. 1919; —V. 690-704. 1919 ; 

 — VI. 705-727. 1919. [Illust.] 



Twenty-three new species in various genera are described. 



Dodge, C. W. Tyrosin in the fungi ; chemistry and methods of 



studying the tyrosinase reaction. Ann. Missouri Bot. Gard. 



6 : 71-92. /. 7. F 1919. 

 Durfee, T. Lichens of the Mt. Monadnock region, N. H. — No. 



II. Bryologist 22: 15, 16. Mr 1919. 

 Ensign, M. R. Sweet potato mosaic. Phytopathology 9 : 180, 



181. Ap 1919. 



Fitzpatrick, H. M. George Francis Atkinson. Science II. 49 : 

 371, 372. 18 Ap 1919. 



Fromme, F. D. Cedar rust. Virginia Hort. Soc. Ann. Rep. 23 : 

 i-ii. 1918. 



Fromme, F. D., & Murray, T. J. Angular-leafspot of tobacco 

 an undescribed bacterial disease. Jour. Aga. Research 16 : 

 219-228. pi. ^5-^7. 24 F 1919. 



Bacterium angulatum sp. nov, 



Fromme, F. D., & Wingard, S. A. Bean rust : its control through 

 the use of resistant varieties. Virginia Agr. Exp. Sta. Bull. 

 220: 1-18. pi. 1-5. N 1918. 



Giddings, N. J. Infection and immunity in apple rust. West 

 Virginia Agr. Exp. Sta. Tech. Bull. 170: 1-71. pi. i-ii. D 

 1918. 



Hayes, H. K., & Stakman, E. C. Rust resistance in timothy. 

 Jour. Am. Soc. Agron. 11 : 67-70. F 191 9. 



Horne, W. T. Oak-fungus disease, oak-root fungus disease, fun- 

 gus root-rot, toadstool root-rot or mushroom root-rot. Mo. 

 Bull. State Comm. Hort. Calif. 8: 64-68. /. J(5-jp. F 1919. 



Itano, A., & Neill, J. Influence of temperature and hydrogen ion 

 concentration upon the spore cycle of Bacillus suhtilis. Jour. 

 Gen. Physiol, i : 421-428. /. i, 2. 20 Mr 1919. 



Jagger, I. C. Control of vegetable diseases. Cornell Ext. Bull. 

 19: 2915-2936. /. pi-113. Je 1917. 



