



140 



BOTANICAL GAZETTE 



[august 



I 00-2000 



tream 



in beautiful cascades. The rain forest in the hanging valleys is not 

 subjected to ecological conditions as severe as those of the tapestry 

 forest, and hence attains more normal development. 



The tapestry groves are notably dwarfed, with the aspect of 

 marked and premature senility. The conditions of the substratum 



,„r 





Fig. 3. — Tapestry groves on very steep lateral spurs 



afford but precarious roothold, and are obviously unfavorable for 

 normal arborescent development. Many species that in sheltered 

 level regions reach heights of 50-80 ft., with large trunks and sym- 

 metrical crowns, are stunted, gnarled, and dwarfed to a marked 

 degree on the precipices. The trunk is short, usually leaning out- 

 ward from the cliff, rarely erect, and breaks up into a number of 





' 



