180 



Quercus laurifoUa ]\[ichx. liaurel Oak. Fla. 

 Quercus marylandica Muench. Black Jack. Ala. 

 Quercus tninor ( Marsh. ) Sargent. Ala. 

 Quercus nigra L. Water Oak. Ala. Fla. 

 Quercus phellos L. Willow Oak. Ala. Fla. 

 Quercus rubra L. Ked Oak. N. H. N. Y. 



GEOGRAPHICAL DISTRIBUTION OF THE DISEASE. 



The distribution of this disease by states is shown in 

 Figure 2. 



Fig. 2. — The disease described in this Bulletin is known to be pres- 

 ent in the states shaded. 



It is very likely that the particular fungus causing the 

 disease herein considered is found outside of the areas 

 there indicated but serious outbreaks of the disease 

 are to be expected only in the gulf states. It would ap^ 

 pear that the climatic and other conditions are in that 

 region more favorable to the development of the fungus 



