PAPERS ON BOTANY 169 



Macoun, W. T. 



1903. Sooty Fungus or Fly Speck Fungus. Leptothyrium pami. 

 In Report of the Horticulturist. Canada Central Exp. 

 Farm Rpt. 1902, p. 111. 

 Fungus described. Geographical occurrence in Can- 

 ada noted. Treatment suggested. 

 Rabenhorst, L. 



1903. Leptothyrium Pomi (Mont, et Fries) Sacc. Kryptogamen 



Flora von Deutschland I. 7. p. 337. 

 Gives a technical description in German. Lists Lal)reUa 

 Pomi in synonymy. Reports fungus on the epicarp 

 of apples from France and Rhode Island. 

 Longyear, B. O. 



1904. Sooty Blotch. In Fungous Diseases of Fruits. Mich. Agr. 



Exp. Sta. Spec. Bui. 25, p. 14. 



Briefly describes the fungus. Names varieties of 

 apples and pears most commonly affected. Control 

 measures suggested. 

 Sheldon. J. L. 



1905. Sooty Blotch and Fly Speck. In A Rpt. on Plant Diseases 



of the State. W. Va. Agr. Exp. Sta. Bui. 96, p. 77. 

 Advises the selection of site where trees will secure 

 air and sunshine. Bordeaux will check the trouble. 

 Wilcox, E. M. 



1905. Fly Speck. Leptothyrium poTni (Mont. & Ft.) Sacc.) 



Sooty Blotch PhyUachora pomigena (Schw.) Sacc.) 

 In Diseases of the Apple, Cherry, Peach, Pear, and 

 Plum: with Methods of Treatment. Ala. Agr. Exp. 

 Sta. Bui. 132, p. 93-94. 102-103. PI. II, fig. 5. 

 Gives their geographical occurrence. Discusses 

 morphology. Expresses doubt as to nomenclature. 

 Claims they spread in storage. Recommends con- 

 trol measures. 

 Clinton, G. P. 



1906. Apple. Sooty Blotch. PhyUacJiora pomigena. In Fungous 



Diseases for 1906. Conn. Agr. Exp. Sta. Rpt. 1906. p. 

 307-S. 

 "One of the most serious fungous troubles of the 

 apple in Conn." 

 Macoun, W. T. 



1906. Sooty or Fly Speck Fungus. LeptotTiyrium pomi. In Report 

 of the Horticulturist. Canada Exp. Farms Rpt. 1906. p. 

 123-124. 



Describes fungus. States that it spreads in storage. 

 Scott, W. M. 



1906. The Control of Bitter Rot. U. S. Dept. of Agr. Bureau Plant 

 Industry Bui. 93, p. 27. 



The control of sooty blotch as an incidental result of 

 sprays for bitter rot aflJrmed. 



