4G i\Ir Allan E. Grant on the 



tissue. It was of fairly common occurrence. The nuclei 

 were often very large, and contained a good many nucleoli. 

 Tlie nucleoli were also large, and in one the nucleus was 

 the largest I ever saw. The limiting membrane could be 

 most distinctly seen (PI. V. fig. 8). There were fre- 

 quently several endo-nucleoli in each nucleolus ; usually 

 there were two. 



Dictaus fraxinella (Plate VI. fig. 1). 



In this plant the multinucleated condition was several 

 times observed in the cells of the parenchj^ma (PI. VI, fig. 

 1). More noticeable than this, however, was the number 

 of nucleoli contained in each nucleus. The number varied 

 from about (aie to ten. 



Podophyllum peltatum (Plate VI. fig. 3) 



A plurality of nuclei was observed in most of the cells, 

 both of the ground tissue and of the bundles. In the 

 figure (Plate VI. fig. 3) the cells are from the parenchyma, 

 but the cells of the bundles show the phenomenon fully 

 better. I have drawn a nucleus divided by direct division 

 from one of the cells of a bundle (PI. VI. fig. 3). Nearly 

 all the nuclei in this plant contained more than one 

 nucleolus. 



Imiiatiens NoU-mc-tangcre (Plate VI. fig. 2). 



A multiplicity of nuclei in the cells of this plant was 

 not very common, but it was observed in some of the cells 

 of the parenchyma (PI. VI. fig. 2). A good many of the 

 cells in the centre of the stem of this plant contained no 

 nuclei, which would seem, therefore, to have disintegrated, 

 although the [ilants taken were young. The nuclei, when 

 present, contained several nucleoli as a rule, and the endo- 

 nucleoli were distinct and large. 



Lilium 2yyv€naicum (Plate VI. figs. 4 and 5). 



In this monocotyledon many of the cells contained more 

 than one nucleus. The limiting membrane of the nucleus 

 was beautifully seen in many cases. Most of the nuclei 

 were multinucleated. The nucleoli were large (PI. VI. fig. 



