1918. | The Burmese Sesamum Varieties. 391 
arrangement, especially in the upper part of the axis where 
they may assume an alternate arrangement. 
Often again the leaves, instead of occurring in opposite 
pairs, may occur in whorls of three, or even four, arising from 
practically the same point on the axis. This character, coupled 
with certain arrangements of the flowers and fruits, gives , 
; u 
right up the stem (Plate XI). Usually, however, at least a 
differentiating characters of the Sesamums. The degree of 
branching affects the life period of the plant. Plants with no 
eee Ing t are preferred for cold weather so d moe 
plant is ‘ he monsoon an : 
Ate started on the tail end of the inc in districts 
Supply of moisture, or for early sowing eed 
mts favier rainfall. On the other hand the shorter no ? 
. ranching types are on the whole more suited to : 
we “arious rainfall of the dry zone tracts of Burma where rt 
the S$ sown in the early rains. In these regions, Ter ahead 
* tainfall varies much in the early rains and it is foun 
