528 



ZONES AND REGIONS [Pt. Ill, Sect. I 



the interior of Brazil, and Lygodium, species of which are twiners in raia 

 forests) and the Marattiaccac'' {'io\- example Angiopteris evecta, a gigantic 



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mm- 







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tic. 115. Pandaniis sechellarum, Balf. f. Seychelles. From a photograph by A. Brauer. 



herbaceous form with a round subaerial stem as large as a man's head,,i 

 Eastern Asia) are never the chief members of any formations. I 



