120 AKT. 1-. K. YEXDO. 



I have not seen any specimen of tbis species collected in 

 Japan. Its occurrence on our coast lias been reported by Dickie 

 but it is extremely doubtful to me. The upper portion of a 

 sterile specimen of Halyseris p^'oiifera Okam. or of Caiyomitra 

 Cabrerœ Kütz. — both occurring within our boundaries — has some 

 apparent likeness to the species in question. 



Locality: " Osima Harbour" (Dickie). 



PELVETIA. 



I*elveti(i Wi'ightii (Har\'.) emend. 

 I'latc I. Fig-. 4-5. 



Hakvey^^ established two new species of Fucus from the 

 specimens collected by Chaules Wiugiiï during the North Pacific 

 Exploring Expedition of the American Navy. They were pub- 

 lished with diagnosis only. As the definitions were rather briefly 

 given, there arose somu confusion in the attempts of later 

 algologists to identify the species. 



One of the species, Fucus Wri(jhtii, was unanimously acknow- 

 ledged by Japanese algologists; but the other, Fucks Babingtonii 

 has been regarded as problematical by them. By the kindness of 

 Prof. E. P. Wright of Trinity College, Dublin, I was so fortunate 

 as to get a set of fine photographs of the original specimens of 

 Fucus Babingtonii. As a result of a study of the photographs 

 when compared with the rich collection of the specimens in the 

 herbarium of the Sapporo Agricultural College, I was able to 

 satisfactorily identify the si)ecies. The two species described by 

 Harvey, however, arc by no means fixed species but rather are 

 diflerent forms of one and the same species. Added to them we 



1) IIakvky: Cliaraclcrs of Now algju. p. 32S-.'5"J'J. 



