PART I. 



1. Sargassum vulgare, Ag-Harv. Ner. Bor. Am. 1. 57. Southern 



Rhode Island. 



2. Montagnei, Bailey. -Haw. Ner. Bor, Am. 1. 58. (S. 



vulgare, var. tenuifolium.J Harv! in Olncy's R. I. 

 plants. Little Compton. 



3. Fucus nodosus, L.-Harv. Ner. Bor. Am. 1. 68. Common. 



4. VESCICULOSUS, L.-Harv. Ner. Bor. Am. 1. 71. Common. 



5. Laminaria saccharina, Lamour. Harv. Ner. Bor. Am. 1. 92. 



Southern Rhode Island. 

 G. trilaminata, Harvey in Olney's B. I. plants. Ner. 



Bor. Am. 1. 93. A single frond of this doubtful 

 species was found by me, floating at Narragan- 

 sett Pier. 



7. digitata, Lamour. -Harv. Ner. Bor. Am. 1. 94. Kar- 



ragansett Pier, floating only. 



8. Chorda filum, Stack.-Harv. Ner. Bor, Am. 1. 98. Southern 



Rhode Island 



9. lomentaria, Lyngb.-Harv. Ner. Bor. Am. 1. 98. South- 



ern Rhode Island. 



10. Sttlophora rhizoides, J. Ag. -Harv. Ner. Bor. Am. 1. 112. Shores 



Southern Rhode Island; rare. 



11. Dictyosiphon FCENICULATUS,-Grey. Harv. Ner. Bor. Am. 1. 114. 



Southern Rhode Island. 



12. PuNCTARrA tenuissima, Grev.-Harv. Ner. Bor Am. 1. 115. Sog- 



connet Point. 



13. plantaginea, Grev.-Harv. Ner. Bor. Am. 1. 115. 



Point Judith. 



14. Chord aria flagelliformis, Ag.-Harv. Ner. Bor. Am. 1. 123. 



Southern Rhode Island, 



15. divaricata, Ag.-Harv. Ner. Bor. Am. 1. 124. New- 



port. 



16. Leathsia tuberiformis, S. F. Gray -Harv. Ner. Bor. Am. 1.129. 



Point Judith and Block Island. 



17. Elachista fucicola, Fras.-Ner. Bor. Am. 1. 131. Southern 



Rhode Island. 



