ASTJiEA rUNCTIFEBA. 



197 



tluctioi), and in the consequent form of the polypier 

 which they produce. When the individuals are 

 isolated, or not closely grouped (fig. 37), the poly- 

 pier attains no great dimensions. The caryophillia 

 presents this character, and examples of them are to 

 be found even in European seas. 



In other varieties the buds do not separate tliem- 



Fig. 37. — Caryophillia Cptuus. 



pelves from tlie original stem, but remain an integral 

 part of it as they grow in number and size (fig. .^8). 

 They develope side by side, and are joined one to 

 another by a comjiact tissue, which is thus formed 

 into thick masses. The j»olypier is ospe( ially charac- 



