ALBERT AND GABRIELLE HOWARD. 60 



especially in such localities in the plains where west winds or 

 storms are prevalent while the tobacco crop is ripening. 



(2) Number, size and arrangement of the leaves. Besides 

 the differences in the position of the leaves just enumerated, 

 the appearance of the plants is materially affected by the 

 angle of insertion of the leaves. In some cases the leaves occup}^ 

 a very upright position, the angle of insertion being small, as 

 in tj^pe L ; in others the leaves may be practically horizontal 

 (type VIII), or they may bend over at various points, i.e., at the 

 base (type XVI), in the centre (type XXXIT) or at the tip (t^qDe 

 XXIII). 



If the leaves are few in number, the plant has an open appear- 

 ance (type XXIII), while numerous small leaves (type XLI) or 

 a moderate number of large ones (type XXXIV) combined with 

 a short habit give the plants a bushy appearance. 



The economic importance of the size and number of the 

 leaves is obvious. 



(3) Arrangement of the inflorescence. The chief difference 

 in the arrangement of the inflorescence which affects the 

 appearance of the plant is the position of the former with 

 regard to the leaves. In some forms the flowers are raised 

 on long branches far above the leaves and in such cases the 

 inflorescence is the most conspicuous part of the plant (see 

 types IX, XI and XIX). In other cases the inflorescence does 

 not grow out and the flowers are borne close to the large leaves 

 (see types XXXV and XXXA'^III), when the plants appear leafj'. 



The tendency to the production of side-shoots or suckers 

 varies considerably among the various types. Some throw out 

 few, others many and vigorous side-shoots. In order to allow 

 the plants to manifest this tendency, only the suckers at the base 

 were removed, the rest being allowed to develop. The habit 

 photographs, therefore, show the tendency or otherwise of the 

 types to sucker. 



Leaves. 



The angle of insertion of the leaves has alread}^ been 

 discussed. In considering the leaves attention must be drawn 



