86 STUDIES IN INDIAN TOBACCOS. 



Type III. Plants very late, tall ; height 150 cms. ; lower 

 internodes very short, upper internodes long ; some of the lowest 

 leaves lie on the o^round, the others are borne at long- intervals 

 up the stem. Leaves petiolate with alate petioles, the wings 

 of the petiole expand on reaching the stem and are amplexicaul 

 and decurrent for 5 cms. ; leaves inserted at an angle of about 60 

 and benddownwards ; shape ovate to cordate ; secondary veins arise 

 at an angle of more than 60" ; apex acute ; margin undulate ; leaf 

 undulate ; surface puckered ; texture thick ; colour dark blue 

 green ; average length of petiole 5 cms. ; average length of leaf 41 

 cms.; ratio length / breadth 15, I ii florescence leaves petiolate 

 with very short alate petioles, inserted at an angle of 90', ovate ; 

 apex acuminate ; leaf undulate and surface generall}^ puckered, 

 hiilorescenee with few Howers and with very spreading sideshoots 

 which arise at regular intervals on the upper half of the main 

 stem. The side branches bear very few flowers. Floivers pink, the 

 colour easily fades ; length 42 mm. Calyx globular and inflated, 

 less than one-third the length of the corolla ; teeth moderately long 

 and acute. Corolla with a broad tube and short dilatation, 

 diameter of orifice 8 mm ; the transition between the tube and the 

 expanded portion abrupt ; limb not very deeply divided ; lobes 

 much rounded, pointed but with no distinct apical points. Capsule 

 much shorter than the persistent calyx, conical ; apex blunt. 



The anthers burst as the flower expands, not in the bud, 

 and occupy a position above the stigma. In the iiill}^ open 

 flower, the burst anthers are about 5 mm. above the stigma and 

 project much beyond the orifice of the corolla. 



Type IV. Resembles type III exactly except in the follow- 

 ing points : — 



(1) The leaves are smoother. 



(2) The caiyx is more inflated. 



(3) The lobes of the corolla are mucronate. 



(4) The capsule is shorter and broader and about equal in 



length to the persistent calyx. 



(5) The anthers are only slightly raised above the stigma. 



