Distribution of the Laminariaceoe. 353 



The District of northern Asia includes that part of the Arctic 

 Ocean lying just north of Siberia. The conditions over this district 

 are unfavorable for the growth of algae and the algal flora is con- 

 sequently very poor/ 



The District of northern Europe includes the seas north of 

 Europe, from the Kara Sea on the east to the northern coast of 

 Norway on the west. The western parts are comparatively rich in 

 kelps. 



The District of western Europe includes the coast of Europe from 

 western Norway down to Portugal and into the Mediterranean Sea. 

 The Baltic Sea and the seas about the British Isles are included in 

 this district. 



The District of Spitzbergen includes the coasts of Spitzbergen, 

 Iceland and eastern Greenland. This includes what Kjellman" calls 

 the Spitzbergen and Greenland Seas. 



The District of Baffin Bay includes the west coast of Greenland 

 and the northern part of the Labrador coast. 



The District of New England includes the coasts of New Eng- 

 land and Nova Scotia, as well as that of Newfoundland and the 

 southern extremity of Labrador. 



The Northern Pacific Oceans. — In the northern Pacific we have 

 the coasts of western North America and of eastern Asia. Both of 

 these may be still farther subdivided and we have finally four dis- 

 tricts to consider, viz: those of California, Alaska, Ochotsk Sea, and 

 Japan. 



The District of California includes all of the western coast of 

 the United States. The kelp-flora is sufficiently alike along its 

 whole extent for us to consider it as a whole. From San Diego 

 southward along Lower California, there are a few fairly important 

 differences. 



The District of Alaska includes Alaska and the adjacent coasts 

 of British America. Its kelp-flora appears to be rich and varied, 

 but it is, as yet, very imperfectly known. 



The District of the Ochotsk Sea includes the eastern and western 

 coasts of Kamtschatka and the sea inside of the Kurile Islands. 

 Almost our entire knowledge of its kelp-flora comes from the works 

 of Postels and Huprecht. 



The District of Japan includes the ocean and seas about the 

 Japanese Archipelago. 



' Cf Kjellin , Arctic Algje, pp. 7, 26, 27, etc. - Loc. cit., p. 3. 



