1L 



LAMINARIACEAE. 

 CHORDA Stack. 



C. Filum (L.) Stack. 

 Common throughout. 



ALARIA Grev. 



A. esculenta Grev. 



Suffolk: Greenport, Orient, Peconic Bay, Pike. 



LAMINARIA Lam. 



L. saccharina (L. ) Lam. 



Found all along the coasts. 

 L. digitata (L. ) Lam. 



Suffolk : Montauk, Farlow, Pike's specimens from Greenport and 

 Orient were not this. 



FUCACEAE. 



FUCUS L. 



F. vesiculosus L. 



Common throughout the island. 

 F. ceranoides L. 



Reported by Pike from Fort Hamilton and Orient, but specimens 

 seen were identical with others from foreign localities and ap- 

 parently had been substituted. 



ASCOPHYLLUM Stack. 



A. nodosum (L. ) Le Jolis. 



Common throughout the northern shore. 



SARGASSUM Ag. 

 S. vulgar e Ag. 



Commonly found throughout the coast, washed ashore. 

 S. bacciferum (Turn.) Ag. 



Washed ashore throughout. 



RHODOPHYCEAE. 



BANGIACEAE. 

 BANGIA Lyngb. 



B. fusco-purpurea (Dillw. ) Lyngb. 

 Common throughout on piling. 



B. ceramicola (Lyngb.) Ch. 



Queens : Cold Spring Harbor, Johnson. 



PORPHYRA Ag. 



P. laciniata (Light.) Ag. 



Common along the whole coast. 



