G. P. HECTOR 99 



As regards stigma colour, the numbers could be counted in only a few 

 plots, owing to the short period of time in which it is possible to determine 

 stigma colour accurately. Hence it has not been possible to verify the relative 

 proportions in which the different types of splitting occur, but apparent 

 examples of all the difEerent ratios of coloured : white expected, viz., 3 : 1, 

 9 : 7, 27 : 37, and 81 : 175 have been found, as shown below : — 



1. Leaf -sheath pure red, stigma ratio 3:1. 

 Plaat No. 27. 



Leaf-sheaths aud glume apex coloured, stigma coloured 

 » ). )> „ white 



Expectation . . 



2. Leaf-sheath ratio 3:1, stigma 9 : 7. 

 Plant No. 31. 



Leaf -sheath and glume apex coloured, stigma coloured 

 „ » >, ,, white 



„ „ green, „ white 



Expectation . . 



Plant No. 110. 



Leaf-sheath and glume apex coloured, stigma coloured 

 „ ,, „ „ white 



,» „ green, „ „ 



Expectation . . 



Plant No. 12. 



Leaf -sheath and glume apex coloured, stigma coloured 

 ., „ „ „ white 



green, 



Expectation , , 



Plant No. 83. 



Leaf-sheath and glume apex coloured, stigma coloured 

 » » » „ white 



» » green. 



Expectation . . 



Plant No. 85. 



Leaf -sheath and glume apex coloured, stigma coloured 

 » ,. „ „ white 



,. green, „ „ 



Expectation . . 



