ICi STrl>lKS IX INDIAN KIHKK PLANTS. 



Stem only one ilowor can be solfed cvoiv day. After setting the 

 bag is moved upwards above tlie young capsule and if care is taken 

 a succession of selfed capsules can be obtained on the stem one 

 above the other. The short peduncles, however, are exceedingly 

 brittle and inelastic and if damaged the capsules drop. 



In order to distinguish the selfed capsules from any free- 

 flowering ones produced after the self-pollinating process is over 

 it was necessary to adopt a special procedure. Labels tied on in 

 the ordinary way just below each selfed capsule were unsatisfac- 

 tory as they frecjuently worked loose and slipped down the smooth 

 stem, especially when the plants diup tiieir leaves as the ripening 

 process proceeds. Each selfed capsule was indicated by passing 

 a thread to which a small light card-board label was attached 

 through the stem by means of a needle just at the insertion of the 

 peduncle. At harvest time no difficulty was experienced in reap- 

 ing the selfed capsules and in lejecting the free-flowering ones. 

 In this way a great saving of time was possible and it was not 

 necessary to visit the plants periodically to remove any subse- 

 (|uent flower buds and to readjust lal)els. 



3. The varieties of H. cannahinus. 



Mention has already been made of the fact that among the 

 pure line cultures obtained from selfed seed several different varie- 

 ties were found. In all, five varieties comprising eight agricul- 

 tural types, have been isolated. These differ from one another 

 in many particulars and a detailed description of each type with 

 a coloured plate of one type of each of the five varieties is 

 given below. As far as we have been able to ascertain in the 

 hterature at our disposal none of these types except the (■oiiuuoa 

 form (Type 7) with divided leaves and green stems have been des- 

 cribed previously. The main differences between the types may 

 be seen from llic following; sunimary : — 



I . \ Aii. nimplej'. 



Ti/pc 1. Stems purple; leavcjs entire witli puiple [)etioles. 

 (IMate II.) 



