2.VJ 



OUTLINE OF PLANT GEOGRAPHY 



Fig. 72.— Hawaiian rain-forest. At back, "ohia" (Metrosideros polymorpha) ; 

 in center, lobelia (Cyanea coriacea). Photo., Dr. J. F. Rock. 



The case of the large volcanic islands is very different, as the 

 recent volcanic deposits are probably superimposed upon more 



