20 Sll'OIKS IN INDIAN I'lltHK I'LANI'S. 



(lillfU'iit fiDin tliosi- of //. ((Utiidhiiiiis k II. W ii/lilidinis. liy the 

 kind permission of Dr. Jackson we were eniil>le<l to have photo- 

 graphs made of both these specimens and tiiese are reproiluced 

 in Phite IV. A comparison of these with the coloured plate of 

 the I'l'isii types will make these dill'erences clear. 



The new forms isolated at I'lisa must, therefore, be regardeil 

 as hitherto undescribed varieties of //. canmihlnus. We con- 

 sider it better to class them all as varieties and not to make any 

 new species. In spite of the difference in the Iwif form varieties 

 1 and 2 resemble the ordinary //. cannahinus so closely and cross so 

 easily with it that it would seem inadvisal)le to separate them. 

 The differences between types G, 7, 8 and between types 4antl 5 are 

 not of the nature of varietal differences anil these forms have, there- 

 fore, been designated as agricultural types. 



There are considerable differences between the eight agrieul- 

 tuial types. Type 4 is too delicate for growth in the plains, while 

 types 3, G and 7 are likely to be more useful for fibre than the rest. 

 Tvpe 7 is the connnon form of the })lains ami is fairly robust. 

 Tvpe G is veiv proiiiisiiit; on account of its earliness and straight 

 unbranched stems. It would be possible to harvest this ciop in time 

 for a succeeding rabi crop. Type 3 is the most vigorous of all. It 

 produces very tall straight and stout stems and thrives well even 

 under defective cultivation. It appears to be a very promising type 

 for Northern India. Experiments are in progress at Piisa to com- 

 pare the yield and finality of the most piomising types when 

 grown in pure culture, and if tyj)e 3 fulfils its early promise the 

 introduction of this kind into cultivation would l)e a distinct 

 improvement. 



4. Uksckiition of riiK Types. 

 The main distinctions between the varieties have alicjidy 

 been indicated, l)ut tliere are in addition many interesting minor 

 jKjints of difference. 'J'lie lollowing description is common to all 

 the eight types. 



