MARINE ALG.E OF THE UNITED STATES. 711 



Subclass CHLOROSPOR^. 



Order SIPHONED. 



Caulerpa prolifera, Lmx. 



Florida ; Mediterranean Sea. 



Caulerpa crassifolia, Ag., var. Mexi'cana. 

 Florida ; West Indies. 



Caulerpa plumaris, Ag. 



Florida; West Indies; generally in the warmer seas. 



Caulerpa Ashmeadii, Harv. 

 Key West. 



Caulerpa ericifolia, Ag. 



Florida ; West Indies. 

 Caulerpa cupressoides, Ag. 



Key West ; West Indies. 



Caulerpa lanuginosa, Ag. 

 Key West. 



Caulerpa Paspaloides, Bory. 

 Florida to Brazil. 



Caulerpa clavifera, Ag. 



Florida ; in all warm seas. 



Halimeda Opuntia, Lmx. 



Florida ; in most warm seas. 



Halimeda incrassata, Lmx. 

 Florida; West Indies. 



Halimeda tuna, Lmx. 



Florida ; Mediterranean Sea ; Pacific Ocean. 



Halimeda tridens, Lmx. 



Key West ; West Indies. 



Udotea flabellata, Lmx. 



Key West ; West Indies. 

 Odotea cong-lutinata, Lmx. 



Key West ; West Indies. 

 C odium tomentosum, Stack. 



Florida; west coast; Europe; in all tropical and subtropical 

 seas. 

 Chlorodesmis ? Vaucherleformis, Harv. 



Key West. 



Bryopsis plumosa, Lmx. 



Whole eastern coast ; nearly all temperate oceans. 



