ROOT. 



69 



are distinguished as adve?ititious. When adventitious roots 

 are given off by chmbing or erect stems, as in the Pepper, 

 Banyan, and Screw Pines, and very many trees and chmbing 

 or epiphytal herbs growing in hot, moist, Indian forests, 

 thev are termed aerial. 



I 



Fig. 43. Screw Pine {Pandanus), showing aerial adventitious Roots. 



Keeping the distinction between true and adventitious 

 roots in view, it will be clear, from what we have said of the 

 origin of the root-fibres in Monocotyledons, that they are 

 always adventitious. Whether true or adventitious, how- 

 ever, the function of tlie root is the same. 



