CS THE BOTANICAL MAGAZINE. LVoi. xxxn. No. 376. 



far as I could ascertain, it is confined to the colder parts of 

 Japan while the other two species are distributed in the warmer. 

 Heydrich reported the present species from the east coast of 

 Formosa. The specimen kept in the herbarium of the Botanical 

 Museum of Berlin is cystocarpic, and appears to me to be a 

 narrow form of C. ocellatus Holm. 



Locality. Otaru (!); Hakodate (!); Muroran (!); Asamushi 

 (Rosenbaum), Tappi (Rosenbaum), Horozuki (Rosenbaum), 

 Mutsu Prov.; Oga, Ugo Prov. (Y. Kudo); Sado Island (T. 

 Obara, No. 19). 



Distribution. California. 



Plocamium costatum H. et H. ? 



Algae Tasra., p. 8— De Toni : Syll. Alg., IV, p. 597. 



(for other references and synonymes, see : De Toni, I.e.). 



Among the species of Plocamium hitherto known, there are 

 three species which have the definite branches simple and ser- 

 rated viz., P. Preissiatium Sond. P. concinnum Aresch and P. 

 costatum H. et H. The former two have two indefinite branches 

 in each internode and the last, only one. The specimen received 

 agrees with the present in this respect as well as in other 

 characters. It is sterile and has narrower segments than the 

 typical form, resembling in general aspect a broad form of P. 

 Telfairiae. Hence, determination with query. 



Locality. Botel Tobago (T. Aoki, No. 39). 



Distribution. Australia ; Tasmania ; New Zealand. 



Nitophyllum ciliolatum Harv. 



in Trans. Irish Acad. XII, p. 549. — Grun.: Algae Novara, p. 85. 

 — De Toni : Syll. Alg., IV, p. 651. 



= Aglaophyllum ciliolatum Kutz.: Tab. Phyc., XIX, Taf. 7. 



The species has been doubted by former writers if it might 

 have been a mere variety or form of N. uncinatum J. Ag. For 

 a fuller account concerning this point, cfr. Grtjnow, I.e. Our 

 specimen also exhibits many characters to endorse the view. 



