ji-ly iao9.] YENDO.— NOTES ON ALGJE NEW TO JAPAN. 133 



Dilsea edulis Stackh. 



Mem. Soc. Mosc. II. p. 55, 71.— De Toni : Syll. Alg. IV. p. 1635. 



=Fucus edulis Stackh.: Nereis Brit. p. 57. Tab. 12. — Turn.: Hist. 

 Fuc. II. Tab. 114. 



= Halymcnia edulis Ac: Spec. Alg. p. 202.— Id.: System, p. 243. 



= Iridaea edulis Bory : in Diet. CI. IX. p. 15.— Harv.: Manual, p. 

 53.— Id.: Phyc. Brit. PI. 97.— Kutz.: Spec. Alg. p. 724.— Id.: Tab. 

 Phyc. Bd. XVII. Tab. 3. fig. a.-c. 



= Fucus edulis Gmelin : Hist. Fuc. Tab. 26, (partim). 



= Sarcophyllis lobata Kutz.: Spec. Alg. p. 748.— Id.: Tab. Phyc. 

 Bd. XVII. Tab. 97, fig. a.-c. 



=*Schizymenia edulis J. Ac: Spec. Alg. II. p. 172.— Kjellm.: Spetz- 

 berg. Thai. i. p. 23. 



= SarcophylIis edulis J. Ac: Epicris. p. 265.— Kjellm.: Alg. Arct. 

 Sea. p. 125. 



The present species is common on the coast of Hokkaido, as 

 well as on that of the northern Honshu. In the Herbarium of 

 the Tokj'O Imperial University there is a specimen kept with 

 the name Schizymenia edulis, collected by Charles Wright 

 during the U. S. Pacific Exploration. The Locality of the plant 

 is simpy remarked "Japan." Judging from the visited places 

 of the explorer I do not doubt that it has been collected at 

 Hakodate and certainly determined b3' Harvey. The specimen, 

 though young, accords very well with ours. 



De Toxi mentions this species in his Phyceae Japon. Nov. 

 p. 37, to have collected by OKAMDRA at Enoshima. I am in 

 strong doubt of this. It must have been a mistake due to an 

 erroneous determination of an alga probably Gratcloupia. elliptica 

 or some like one that abounds about there. The southern limit 

 of the present species on our Pacific coast is near .-it the Kin- 

 kwasan [sland. 



Loc. Hakodate; Otaru; Mutsu Prov.; Rikuchu Prov.; Rishiri 

 [sland ; Kushiro Prov. 



May, L909, Sappi 



