t 



211 



grain and some of the best and finest cultivated rices have 

 awned spikelet e.g. the karpurkdti. Roxburgh's classification 

 probably does not include the Bildn rices, which may have 

 been alone derived from the wild Uri rice, while the ordinary 

 red rices are probably derived frond O. rafipogon and the 

 blackish ones from O. abuensis. 



256. Area. It has been already said that over 60 per cent, 

 of the cultivated area of Bengal is under rice. It is noticeable 

 that while the Patna Division produces the largest quantity 

 of rice, the proportion of cultivated land under rice in this 

 Division is the smallest of all. The 15 districts that produce 

 the largest quantities of rice and the 15 that show the largest 

 proportion of cultivated area under rice are shown below, in 

 order of importance : 



B 



