274 



Mycologia 



Pycnoporus cinnabarinus, Poronidnlus conchifer, Polyporus Polyporus, 

 Bjerkandera adusta, Tyromyces amorphus, and Cerrena unicolor, are illus- 

 trated in color. 



Osner, G. A. Stemphylium leafspot of cucumbers. Jour. Agr. 



Research 13 : 295-306. pi. 21-24 + /. 1-3. 29 Ap 1918. 

 Parr, R. The response of Pilobolus to light. Ann. Bot. 32 : 177- 



205. /. 1-4. Ap 1918. 

 Pratt, 0. A. Soil fungi in relation to diseases of the Irish potato 



in southern Idaho. Jour. Agr. Research 13: 73-100. pi. A., 



B + /. 1-4. 8 Ap 1918. 

 Rangel, E. Algunos fungos novas do Brasil. Arch. Jard. Bot. 



Rio de Janeiro 2: 69-71. pi. 28-30. 1918. 



New species are described in Puccinia (3), Septoria (1), Cercospora (1) 

 and Helminthosporium (1). 



Roberts, J. W., & Pierce, L. Apple bitter rot and its control. 

 U. S. Dept. Agr. Farm. Bull. 938: 1-14. /. 1-3. Ap 1918. 



Rhoads, A. S. Some new or little known hosts for wood-destroy- 

 ing fungi — II. Phytopathology 8: 164-167. Ap 1918. 



Shear, C. L. Pathological aspects of the federal fruit and vege- 

 table inspection service. Phytopathology 8: 155-160. 30 Ap 

 1918. 



Sherbakoff, C. D. Tomato diseases. Florida Agr. Exp. Sta. 



Bull. 146: 1 19-132. /. 32-44. Mr 1918. 

 Stakman, E. C, & Hoerner, G. R. The occurrence of Puccinia 



graminis tritici-compacti in the southern United States. Phyto- 

 pathology 8: 141-149. /. 2. Ap 1918. 

 Stevens, H. E. Melanose— II. Florida Agr. Exp. Sta. Bull.. 



145: 103-116. /. 26-31. F 1918. 

 Stevenson, J. A. The green muscardine fungus in Porto Rico. 



Jour. Dept. Agr. Porto Rico 2 : 19-32. pi. 1. Ja 19 18. 

 Stevenson, J. A. Report of the department of pathology and 



botany. Ann. Rep. Ins. Exp. Sta. Porto Rico 1917* 37-^3- 



1917. 



Stevenson, J.. & Rose, R. C. Vegetable diseases. Ann. Rep. 

 Ins. Exp. Sta. Porto Rico 1917: 83-98. 1917. 



Includes Cercospora acrocomiae and Tubercularia coccicola, spp. nov. 



Stewart, F. C, & Mix, A. J. Blackheart and the aeration of 

 potatoes in storage. New York Agr. Exp. Sta. Bull. 436 : 321- 

 362. pi. 1-10. Je 1917. 



