313 ZONES AND REGIONS [Pt. Ill, Sect. I 



are lianes. All three genera consist entirely or partially of root-climbers, 



Fig. ifi. A p.ilm, the lower part of whose stem is encircled by a loot-climliing fein, and its 

 upper part by Freycinetia sp. Samoa. Altitude 300 meters. From a photograph taken under 

 the direction of Kiippen-Loosen. 



and within their own areas form common and striking constituents of the 

 rain-forest. The Freycinetieae (Fig. 151) are tall climbers, which reach 



