KONGL. SV. VET. AKADEMIENS HANDLINGAK. BAND. 20. N:0 5. 279 



Hahitat. Sublitoral, attached to Laminaria digUata. It bears garaetangia at 

 Nordlanden in July and August. 



Locality: The Nonoegian Polar Sea: Nordlanden at Lofoten. 



Ectocarpus fasciculatus Harv. 

 Man. p. 40; ex parte. 



Beser. Ectocarpus fasciculatus Kjellm. Skaiid. Ect. och Tilopt. p. 89. 

 Fig. » » Harv. Phyc. Brit. t. 273. 



Exsicc. » » Aresch. Alg. Scaiid. exsicc. N:o 114. 



Syn. Ectocarpus fasciculatus Kleen, Nordl. Alg. p. 38. 



Hahitat. This species grows in the litoral zone, scattered, on exposed coasts, 

 usually attached to other algte, as species of Monostroma, occasionally to stones. It 

 bears gametangia in the Norwegian Polar Sea in July and August. 



Geogr. Distrih. It belongs to the Atlantic region of the Arctic Sea, being rare 

 in the northern part, coramon in the southern. Its northernmost point is Gjesva3r in 

 Finmarken about Lat. N. 71°. 



Localities: The Nonvegian Polar Sea: Nordlanden coinmon and abundant; Fin- 

 marken local and scarce at Maasö and Gjesvter. 



Ectocarpus tomentosus (Huds.) Lyngb. 



Hydr. Dan. p. 132. Conferva tomentosa Huds. Fl. Ang. p. 594. 



Descr. Ectocarpus tomentosus Kjellm. Skand. Ect. ocli Tilopt. p. 63. 

 Fig. » » Hauv. Phyc. Brit. t. 182. 



Exsicc. » » Aresch. Alg. Scand. exsicc. N:o 110. 



Syn. Ectocarpus tomentosus Kleen, Nordl. Alg. p. 37. 



Hahitat. Litoral, attached to other algfe, usually Fucacew. It is often gregarious 

 and lives chiefly in localities exposed to a heavy surge. In July and August it has 

 been found with gametangia. 



Geogr. Distrih. Known only from the southern part of the Atlantic region of 

 the Polar Sea. 



Locality: The Norwegian Polar Sea: Nordlanden common and abundant. 



Ectocarpus ovatus Kjellm. 

 Spetsb. Thall. 2, p. 3,5. 

 Descr. et Fig. Ectocarpus polycarpus Kjellm. Skand. Ect. och Tilopt. p. 93, et t. 1, tig. 5. 

 Syn. Ectocarpus ovatus Kjellm. Spetsb. Thall. 2, p. 35. 

 » polycarpus Kleen, Nordl. Alg. p. 38. 



Hahitat. This species is litoral in the Norwegian Polar Sea, attached to Coral- 

 lina officinalis, sublitoral and fastened to other algas in the Greenland Sea. It grows 



