PLATE 68 
A, B.—Leaves of Nymphaea caerulea at i week after sowing conidiaof Helicosporium 
nymphaearum (isolation 205) on upper surface. Inoculation of July 7, 1914. X 0.75. 
Photographed by J. F. Brewer. 
C.—Leaf of N. capensis at 1 week after sowing conidia of H. nymphaearum (isola¬ 
tion 225) on upper surface. Inoculation of December 31, 1914. X 0.77. Photo¬ 
graphed by J. F. Brewer, 
74549°—17 - 4 
