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nus, Alaria fistulosa, etc., flourish luxuri- 

 antly on the coast of Kurile island, 

 their southern limit being in the vicinity 

 of Shikotan island. Constantinea rosa- 

 marina, Fucus evanescens, Pelvetia (Fu- 

 cus) wrightii, Desmarestia aculeata, Des- 

 marestia ligulata, Delesseria crassiforia, 

 Delesseria serrulata, Odonthalia dentata, 

 Agarum turneri and many other arctic 

 representatives come down as far south 

 as near Hakodate. It is in this region 

 that enormous quantities of Laminaria 

 develop, a plant that is collected and 

 dried for export to China. The Lami- 

 naria of Hakodate are as luxuriant as 

 the Lessonia, Alaria and Nereocystis 

 beds of the Minnesota Seaside Station. 

 Along the coast of Hakodate to Kink- 

 wa-san island, Alaria crassifolia, several 

 species of Laminaria, Amphiroa creta- 

 cea, Stenogramma interrupta, Agarum 

 turneri, Costaria turneri, etc. , reach their 



