July, i9i.5.] YENDO.— NOTES ON ALG AS NEW TO JAPAN III. 105 



amples, as it were, the present species is found, as far as im- 

 material show, in Hidaka Province only. The coast is usually 

 washed by a branch of the Behring current. 



Locality. Hidaka (!). 



Distribution. Mediterranean Sea. 



Chantransia immersa Roseny. 



Mar. Alg. of Denmark, I, p. 130. fig. 56-58. 



Parasitic forms of Chantransia have been frequentlj r found 

 in our species of Halymenia, Rhodomela and Herposiphonia. 

 In most cases, they have been sterile and exact determination 

 hence difficult. One of them which occurs in Herposiphonia 

 was referrable to C. immersa f. polysiphoniae Rosenv. Further 

 researches may probably add more species of similar parasites 

 to our flora. 



Locality. Hakodate (!). 



Distribution. Denmark. 



Goniotrichum elegans Le Jolis. 



List. Alg. Mar. Cherbourg, p. 103. — Berthold : Bangiaceen 

 Neapel, p. 26— J. Ac: Till Alg. System. VI, p. 13.— Hauck : 

 Meersalgen, p. 518.— Rosenv. : Mar. Alg. of Denmark, I, p. 75.— 

 Coll., Hold, and Setch.: Phyc. Bor.-Amer. No. 1248.— Collins : 

 Notes on Alg. VIII, p. 160 (Rhodora, 1906).— Id.: Alg. of Jamaica 

 p. 251. 



= G. dichotomum Kutz.: Tab. Phyc. III. Tab. 27. fig. I. 

 = Bangia elegans Chauv. : Mem. Soc. Linn. Norm. PI. 6.— Id.: Rech 

 sur l'org. d. plus genr. d'Algues, p. 33. — Hary. : Phyc. Brit. PI. 

 246. 



= Ceramium ceramicola Fl. Dan. Tab. 2207, fig. 2 (sec. Rosenyenge.) 

 ? = Goniotrichum ceramicola Kutz. : Phyc. Gen. p. 244. — Id. : Tab. 

 Phyc. Ill, Taf. 27, fig. II. 



An exhaustive description of this plant is already given b}' 

 Rosenvenge so that I have nothing new to add to. My speci- 

 men was found growing on a Cystoclonium. 



