348 



OUTLINE OF PLANT GEOGRAPHY 



the branches of trees, and presently the young plant sends down 

 roots which descend along the trunk of the host until they reach 



Fig. 97.— Sub-alpine scrub, Arthur's Pass, South Island, New Zealand. Dra- 

 cophyllum Traversii; in front, Suttonia divaricata. Photo., Dr. L. Cockayne. 



the ground. Sometimes these roots coalesce into a more or less 

 solid trunk, and the host may be completely strangled. The 

 "rata" is the most conspicuous of these temporary epiphytes. 

 Other species are Dracophyllum arboreum and Griselinea littoralis. 



