THE BOTANICAL MAGAZINE. 



Vol. X, No. 117. 

 PART II. 



On Laminaria of Japan, 



By 

 K. Okamura, Rigakwhakuski. 



With PI. VII.i) 



The algal flora, especially Laminariacece, of the Upper Northern 

 Pacific has been so often and so carefully investigated by many eminent 

 botanists, among whom I especially mention Kjellman, that hardly any 

 new species remains to be detected. Yet when I recently took up the 

 study of our Laminaria group having simple lamina, I found a new 

 species, besides observing several minute points in already known species 

 which bad been either overlooked or neglected by predecessors. Amongst 

 others I found the existence of muciferous lacunar in some species in 

 which they have been hitherto considered as wanting. As a result of 

 my investigation I propose to classify our Laminaria species as in the 

 following synopsis : 



*3 The plate will appear in the next number. 



