

^ 



CHAPTER III. 



Sub-class.— MELANOSPOR^. 

 Order.— DICTYOTE^. 

 Qer\us.— ZONAIiIA* Ag. 



ZONARIA TOUENEFORTir, LaM. 



fANY plants of this species have been dis. 

 tributed under the name of Z. flava. It is 

 common in southern California, as some species of 

 this genus are in aH tropical and sub-tropical seas. 

 It grows from a short, flattened stem, a widely- 

 spreading, flat, fan-shaped frond, two to four inches 

 high, with obscure concentric bands of a darker color 

 on the olive green of the plant. The extreme rounded 



* Zonaria = belted or zoned. 



