CiiAi'. VI] EDAl'IIIC INFLUENCES IX Till': TROPICS 3S9 



plants, which anchor themselves firml)' b)- means of adventitious roots. 

 The most \\idcl\- spread of these plants is Ipomoca Pcs-caprae (I. biloba), 



Fig. 211. Sandy shore with shrubs and Pandamis sp. in German East Africa. From a photograph. 



which, in both tlie Xew and Old Worlds, is rare)}' absent from sandy 



