20 ROUINSON, Puccinia j/ialvacearuvi and its Jiost plant. 



plasm aggregate round the nucleus, lose their 

 colour and contour and finally disintegrate. The 

 nucleus moves from a peripheral position towards 

 the centre of the cell and is connected with the 

 peripheral protoplasm by protoplasmic strands. 

 There is a very distinct increase in size of the 

 nucleus and the chromatin gradually diminishes 

 in quantity. 



Cryptoga.mic Research Laboratory, 

 University of Manchester. 



