^EW YoKK Agricultural Experiment Station. 181 



An experiment was made to determine if bruises made after 

 tlie fruit was ripe would cause the appearance of starch in the 

 bruised tissue. On December 6, apples of the variety Pride of 

 Texas were bruised without breaking the epidermis, and then 

 kept at a temperature of 60 °E. At the end of three weeks the 

 bruised tissue contained a little starch, but the quantity was very 

 small as compared with that found in old bruises on the same 

 variety. 



Y. A FUSAKIUM LEAF-SPOT OP CAK^tatIOI^S. 



A very unusual case of Fusarium attacking carnation foliage 

 was observed in a greenhouse at Syracuse last ISTovember. A 

 bench of carnations of the variety Emily Pierson was quite 

 seriously affected with a peculiar leaf-spot. The spots varied in 

 length from one-eighth of an inch to one inch. The smaller ones, 

 were elliptical, but the larger ones occupied the entire width of 

 the leaf and were irregular at the ends. They were covered with 

 a pinkish gray mold and irregularly dotted at the center with the 

 light yellow spore masses of a species of Fusarium. Many of the 

 worst affected leaves were dying. The Fusarium was evidently 

 parasitic on the leaves, but a careful examination revealed the 

 fact that in every case the spots originated in a rust^ sorus. It 

 appeared that the Fusarium was unable to attack the uninjured 

 leaf, but when the epidermis was broken by rust it was able to 

 enter and bring about decay of the leaf tissue. It is improbable 

 that the Fusarium is parasitic upon the rust.^^ 



The writer has occasionally observed Fusarium attacking 

 injured leaves and stems of carnations and the spore masses of a 

 similar Fusarium are common on the stems of carnations affected 



^^Uromyces caryo^liylUnus (Schrank) Schroet. 



25 In this connection it may be mentioned that Mr. F. H. Blodgett, Assistant 

 Botanist and Entomologist, observed at Mattituck, N. Y., last August, a 

 Fusarium growing abundantly on the uredo sori of Puccinia asparagi, D. C. 

 However, in this case, the Fusarium was not confined so strictly to the rust 

 Bori, but occurred also upon the so-called leopard spots and sometimes even 

 upon the uninjured asparagus stems. 



