Me.moii: 109 Plate IV 











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\ 



CROSS SECTION THROUGH THE NODAL KEtMON OF THE CULM 

 OF A SMUTTED PLANT (SWEDISH SELECT), SHOWING THE 

 MYCELIUM OK CSTILAGO ULNAE l\ THE PITH PARENCHYMA. 



X2G5 



The photograph was made from a section which w^as cut 

 rather thick. This was done to emphasize the abundance of 

 mycelium present. The lighter parts of the mycelium in the 

 photograph are those parts which were not directly in the 

 plane of focus. Their appearance is not due to degeneration 



