BUTLER : Memoirs of the Agric. Dept. in India, Vol. I, 

 No. 3, p. 35. 



Photna Batata, Ell. and Hals., causes a dry ret of sweet 

 potato in New Jersey. When a root is attacked its upper 

 end becomes dry and wrinkled. Small pimples appear on 

 its surface, these being the pcrithecia of the fungus. 



Diagnosis : Perithecia black, gregarious, sunken ; spores 

 ovoid, hyaline ; basidia slender. 



HALSTED : New Jersey Agric. Coll. Exp. Station, Bull. 76, 

 1890. 



Macrophoma vestita, Prill, and Delacroix, was described 

 as an injurious parasite on the roots of cacao in equatorial 

 South America. It is now considered by several observers 

 to be identical with Diplodia cacaoicola. 



Prilleux and Delacroix : Bull, de la Soc. Myc. de 

 France, Vol. X, 1894, p. 165. 



Phyllosticta bataticola, Ell. and Mart., causes a leaf blight 

 of sweet potato in New Jersey. White patches appear on 

 the leaves ; these become darker in colour and bear the 

 perithecia of the fungus. 



Diagnosis : Perithecia few, minute, black ; spots small, 

 white with a purple margin ; spores oblong-ellipsoid, 5 by 

 2 microns. 



HALSTED : New Jersey Agric. Coll. Exp. Station, Bull. 

 76, 1890. 



SEPTORIA NICOTIANS, Pat. 

 (Frog-Eye Disease of Tobacco.) 



The fungus forms brown spots on the leaves of the 

 tobacco plant ; the spots are concentrically zoned and later 

 assume a white appearance. The disease has been reported 

 to occur in Jamaica. 



Diagnosis : Spots concentrically zoned, changing from 

 brown to white; perithecia often hypophyllous, 90-140 

 microns diamr. ; spores 50-55 by 2-3 microns, hyaline, 

 3-4-septate. 



Patouillard and Lagerheim : " Champignons de 

 l'equateur," Bull, ae la Soc. Myc. de Frayice, 1892, p. 136. 



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