STUDIES IN INDIAN TOBACCOS. 



Vj 



Type 1. Plants earl}' : heiuht 135ciiis. Lcarcs inserted at 

 an angle of about 6()\ the lamina afterwards curving towards the 

 ground, subcordate ; apex more acute than in the other types of 

 this group ; margin very undulate and cuiving upwards ; surface 

 somewhat puckei'ed ; colour dark blue-green ; average length 

 of petiole 7cms.; average length of lamina 29'5 cms. ; ratio 

 length/ breadth = ri3. rniiorcficoncf' leares inserted at an angle of 

 about 45', elliptical to lanceolate ; apex acute ; margin undulate ; 

 surface flat. Iii.fJore.^cence open ; the secondaiy branches long 

 and slender, almost as long as and running somewhat parallel to 

 the main axis. Floiro's sparse, medium in size ; outline straight, 

 no apparent constriction. Calyx somewhat dark green, tubular ; 

 midrib of sepals well marked ; teeth long and pointed. Corolla 

 with sevj distinct lobes ; limb never flat and full}' expanded ; 

 apicula? conspicuous. Cap.mie medium in size, a little longer 

 than the calyx, round ; apex rounded, scarcely umbilicate. 



This type is not adapted for self-fertilization (see p. 0). The 

 stamens are shorter than the style throughout the period of 

 development of the flower, and it is only by shaking or by the 

 ao-ency of wind that self-pollination can be eftected. If left to 

 themselves, many of the flowers drop and but few capsules are 

 formed. Artificial pollination and crossing with another type 

 were uniformly successful. 



