64 (Bulletin of the Natural History Society. 
7. U. clathrata, A g. On Zostera marina, Pictou, MacKay; Miscou 
Island, Hay. 
8. U. Hopkirkii, (McCalla) Harv. Pictou harbour, MacKay. 
9. Ulothrix collabens, (Ag.) Thur.? Grand Manan, Hay. 
10. Clisetomorpha melagonium, (Web. & Mohr.) Ivutz. Halifax har- 
bour, MacKay. 
11. C. Picquotiana, (Mont.) Kutz. Halifax, Harvey in N.B.-Am. 
12. Rhizoclonium tortuosum, Kutz. Halifax, Harvey in N. B.-Am.-, 
Shippegan Island, Hay. 
18. Cladophora arcta, (Dillw). P. E. Island, Dr. .Jeans; Halifax,. 
Harvey; Grand Manan and Frye’s Island, Hay. 
14. C. lanosa, (Roth) Kutz, Yar. uncialis, Thuret. P. E. Island, Jeans. 
Halifax, Harvey. 
15. C. rupestris, (Linn.) Kutz. Shippegan Island, Hay. 
16. C. refracta (Roth) Areschoug. Frye’s Island, Hay. 
17. C. glaucescens, (Griff.) Harv. Halifax, Harvey; North Miscou,. 
Hay. 
18. C. flexuosa, (Griff.) Harv. Miscou Island, Hay. 
19. C. gracilis, (Griff.) Kutz. Frye’s Island, Hay. 
20. Phyllitis fascia, Kutz. Halifax, Harvey. 
21. Scytosiphon lomentarius, Ag. Halifax, MacKay; Frye’s Island, 
Caraquet, Grand Manan, Hay. 
22. Punctaria latifolia, Grev. Halifax, Harvey. Yar. zosterse, Le Jolis. 
Mouth of Pictou harbour, MacKay; Halifax, Harvey. 
28. P. plantaginea, (Roth) Grev. P. E. Island, Jeans. 
24. Desmarestia aculeata, Lam.x, Pictou, MacKay; Kouchibouguac 
Bay, Fowler. 
25. D. viridis, Lam.x., Halifax, Harvey, Frye’s Island, Grand Manan, 
Miscou, Hay. 
26. Dictyosiphon fceniculaceus, Grev. Pictou, MacKay , This species 
has been found growing as regular branches from a stem formed 
of the filiform frond of Chordaria jlagelliformis, at Pictou, 
in such a manner that the whole appeared to be but one 
plant. The conundrum was — how can the microscopic section 
of the branch show the structure of Dictyosiphon, while that of 
the stem shows with equal distinctness the structure of Chordaria? 
Further examination, of course, demonstrated the character of the 
interesting union. Frye’s Island, Grand Manan, Miscou, Hay; 
Kouchibouguac Bay, Fowler. 
27. Ectocarpus tomentosus, (Huds.) Lyngb. P. E. Island, Jeans. 
28. E. confervoides, (Roth) Le Jolis. P. E. Island, Jeans. Yar. 
siliculosus, Kjellman. Pictou, MacKay; Frye’s Island, Caraquet, 
Miscou, Hay. 
29. E. littoralis, Lyngb. Pictou, MacKay; Grand Manan, Miscou, 
Shippegan, Hay. 
