18 



MORPHOLOGY 



Most climbing plants produce from their stems adven- 

 titious roots, by means of which they remain attached 

 to their supports, as, for example, gaja-pipul (see 



Fig". i6'. — Orchid growing- on a Tree, showing Aerial Roots 



fig. 267), gachh-pan (Piper), thai (Piper). The aerial 

 roots of Banyan, Screw-pine, Maize, tal-palm, and 

 other palms also serve as good examples. 



Many water-plants usually spread their roots in 

 water without attachment to any substratum, as in 



