ÏIIE FUGACES OF JAPAN. 131 



den gegebenen Diagnosen nnd Bemerkungen heraus, dürfte es 

 sehr schwer halten, S. du2ilicaiicni J. Ag. genügend sicher und 

 scharf von den ähnlichen Arten zu unterscheiden." 



I was especially careful in determining our plants but the 

 result was not very satisfactory, as might be expected from the 

 above noted circumstance. A few of the specimens were sent 

 to Major Reinbold. He was kind enough to take the 

 trouble to compare them with the reliable specimens at his com- 

 mand and has given me much valuable advice together with 

 authentic specimens of Bory, Grunow, etc. The determination 

 of the following three species is for the most part based on his 

 opinion. 



I have a few other specimens, sterile and fragmentary, which 

 should probably be counted in this tribe. They are however 

 so incomplete as to make impossible even to speculate upon 

 their relation to any known species. We have reason to believe 

 that a careful research in the warmer regions of Japan may 

 add to her Üora a few other species of Sargassum, especially of 

 the present tribe. 



Sargassum Ilicifoliuiu var: diiplicatitm J. Ag. 

 Plate XVI. Fig. 5-9. 



Spec. Alg. I. p. 818. — Eeinb.: Sarg. v. Ind. Arch. p. 70, 



= Sargassum cristccfoUum Harv.: Alg. Felf. in Hook. Lond. Juurn. 



Bot. I. 1). 147. (sec. J. Ag.). 

 = Sargassum Pfeiffcrœ Grun.: Fidscli. p. 5. 



Remark on the determination. Our specimens answer very 

 well to the description of the above named variety given in J. 

 Agardh's Spec. Alg., 1. c. They also accord most satisfactorily 

 with iSarr/assum Pfeijferœ Grux., a part of an original specimen 



