A somewhat similar injury to the leaves is known in Europe, caused by an
entirely different fungus, _Cercospora bolleana_ (Thum) Sacc. It had not
been observed in this country until the summer of 1895, when it was
found abundantly in Mississippi by S. M. Tracy. A _cercospora_, probably
the same species, is also reported from Florida by H. J. Webber. It
probably occurs quite commonly, but has been overlooked, its injuries
being confounded with those caused by the _Uredo_.